Made it human-friendly
This commit is contained in:
@@ -141,6 +141,7 @@
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<ItemGroup>
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<ClCompile Include="camera.cpp" />
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<ClCompile Include="geometry.cpp" />
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<ClCompile Include="improv_gfx.cpp" />
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<ClCompile Include="kernels.cpp">
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<AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(ProjectDir)\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(ProjectDir)\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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@@ -158,6 +159,7 @@
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<ItemGroup>
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<ClInclude Include="geometry.h" />
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<ClInclude Include="camera.h" />
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<ClInclude Include="improv_gfx.h" />
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<ClInclude Include="kernels.h" />
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<ClInclude Include="model.h" />
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<ClInclude Include="renderer.h" />
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@@ -45,6 +45,9 @@
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<ClCompile Include="kernel_sources.cpp">
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<Filter>Source Files</Filter>
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</ClCompile>
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<ClCompile Include="improv_gfx.cpp">
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<Filter>Source Files</Filter>
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</ClCompile>
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</ItemGroup>
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<ItemGroup>
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<ClInclude Include="util_window.h">
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@@ -71,5 +74,8 @@
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<ClInclude Include="kernels.h">
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<Filter>Header Files</Filter>
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</ClInclude>
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<ClInclude Include="improv_gfx.h">
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<Filter>Header Files</Filter>
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</ClInclude>
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</ItemGroup>
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</Project>
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Binary file not shown.
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@@ -0,0 +1,18 @@
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#include "improv_gfx.h"
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void Setup() {
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AddModel(new Model("sakura.obj"));
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AddModel(new Model("african_head.obj"));
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Model* model2 = new Model("african_head.obj");
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model2->translate(Vec3f(1, 0, 0));
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model2->ApplyTransform();
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AddModel(model2);
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Model* model3 = new Model("african_head.obj");
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model3->translate(Vec3f(-1, 0, 0));
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model3->ApplyTransform();
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AddModel(model3);
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}
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@@ -0,0 +1,9 @@
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#ifndef __IMPROV_GFX__
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#define __IMPROV_GFX__
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#include "model.h"
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#include "geometry.h"
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void Setup();
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void AddModel(Model* model);
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#endif
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+145
-145
@@ -1,145 +1,145 @@
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#include "kernels.h"
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const char* vertex_shader_kernel_source =
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"__kernel \n"
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"void vertex_shader( __global float* m, \n"
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" __global float* VertexBuffer, \n"
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" __global float* NewVertexBuffer) \n"
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"{ \n"
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" int local_index = get_local_id(0); \n"
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" int global_index = get_group_id(0); \n"
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" NewVertexBuffer[4*global_index+local_index] = \n"
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" m[local_index*4]*VertexBuffer[3*global_index] \n"
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" + m[local_index*4 + 1]*VertexBuffer[3*global_index+1] \n"
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" + m[local_index*4 + 2]*VertexBuffer[3*global_index+2] \n"
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" + m[local_index*4 + 3]; \n"
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"} \n";
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const char* fragment_shader_kernel_source =
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"float3 barycentric(float3* pts, float3 P) \n"
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"{ \n"
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" float3 u = cross( \n"
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" (float3){pts[0][2] - pts[0][0], pts[0][1] - pts[0][0], pts[0][0] - P[0]}, // AC_x, AB_x, distance_x \n"
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" (float3){pts[1][2] - pts[1][0], pts[1][1] - pts[1][0], pts[1][0] - P[1]} // AC_y, AB_y, distance_y \n"
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" ); \n"
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" if (fabs(u[2]) < 1) return (float3){-1, 1, 1}; \n"
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" return (float3){1.f - (u[0] + u[1]) / u[2], u[1] / u[2], u[0] / u[2]}; \n"
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"} \n"
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" \n"
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"__kernel void fragment_shader ( \n"
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" __global int3* faces, \n"
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" __global float* vertices, \n"
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" __global int* pixels, \n"
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" __global int* screen_width, \n"
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" __global float* z_buffer, \n"
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" __global int* nfaces, \n"
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" __global float* uv_buffer, \n"
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" __global int* map_size, \n"
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" __global float* light_dir, \n"
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" __global float* norms_buff, \n"
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" __global uchar* diffuse_map \n"
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") { \n"
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" int GROUP_ID = get_group_id(0); \n"
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" int GROUP_SIZE = get_local_size(0); \n"
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" int LOCAL_ID = get_local_id(0); \n"
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" \n"
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" bool out = true; \n"
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" float3 vertices3[3]; \n"
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" float2 uv_coords[3]; \n"
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" float3 norms[3]; \n"
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" \n"
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" for(int i = 0; i < 3; i++) { \n"
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" float4 vertex;// = vertices[faces[GROUP_ID * 3 + i ][0]]; \n"
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" for(int j = 0; j < 4; j ++) { \n"
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" vertex[j] = vertices[4 * faces[GROUP_ID*3 + i][0] + j]; \n"
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" } \n"
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" \n"
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" for(int j = 0; j < 2; j++) { \n"
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" uv_coords[i][j] = uv_buffer [2 * faces[GROUP_ID * 3 + i][1] + j]; \n"
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" } \n"
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" \n"
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" for( int j = 0; j < 3; j++ ) { \n"
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" vertices3[j][i] = (vertex[j]/vertex[3]); \n"
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" norms[j][i] = norms_buff[3 * (faces[GROUP_ID * 3 + i][2]) + j]; \n"
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" } \n"
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" \n"
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" if ( vertices3[0][i] > 0 && vertices3[0][i] < *screen_width \n"
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" && vertices3[1][i] > 0 && vertices3[1][i] < *screen_width ) \n"
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" out = false; \n"
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" } \n"
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" \n"
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" if(out) return; \n"
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" \n"
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" //if(vertices3[1][0] == vertices3[1][1] && vertices3[1][2] == vertices3[1][1]) return; \n"
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" \n"
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" int2 bounding_box_min = (int2) { *screen_width - 1, *screen_width - 1 }; \n"
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" int2 bounding_box_max = (int2) { 0, 0 }; \n"
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" int2 clamper = (int2) { *screen_width - 1, *screen_width - 1 }; \n"
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" \n"
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" for(int i = 0; i < 3; i++) { \n"
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" for(int j = 0; j < 2; j++) { \n"
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" bounding_box_min[j] = max(0, min(bounding_box_min[j], (int)vertices3[j][i])); \n"
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" bounding_box_max[j] = min(clamper[j], max(bounding_box_max[j], (int)vertices3[j][i])); \n"
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" } \n"
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" } \n"
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" \n"
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" if(bounding_box_min[0] > *screen_width || bounding_box_max[0] < 0 || bounding_box_min[1] > *screen_width || bounding_box_max[1] < 0) return; \n"
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" \n"
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" \n"
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" int X_PER_ITEM = (int)(ceil((float)(bounding_box_max[0] - bounding_box_min[0]) / 16.f)); \n"
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" int Y_PER_ITEM = (int)(ceil((float)(bounding_box_max[1] - bounding_box_min[1]) / 16.f)); \n"
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" float STARTING_X = bounding_box_min[0] + X_PER_ITEM * (LOCAL_ID % 16); \n"
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" float ENDING_X = STARTING_X + X_PER_ITEM; \n"
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" float STARTING_Y = bounding_box_min[1] + Y_PER_ITEM * (LOCAL_ID / 16); \n"
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" float ENDING_Y = STARTING_Y + Y_PER_ITEM; \n"
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" \n"
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" \n"
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" float3 point; \n"
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" for(point[0] = STARTING_X; point[0] <= ENDING_X; point[0]++) { \n"
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" for(point[1] = STARTING_Y; point[1] <= ENDING_Y; point[1]++) { \n"
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" if(point[1] >= *screen_width || point[1] >= *screen_width) break; \n"
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" float3 bc_coord = barycentric(vertices3, point); \n"
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" if (bc_coord[0] < 0 || bc_coord[1] < 0 || bc_coord[2] < 0) continue; \n"
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" \n"
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" float2 uv_vec = (float2){0, 0}; \n"
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" float3 normal = (float3){0, 0, 0}; \n"
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" \n"
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" point[2] = dot(vertices3[2], bc_coord); \n"
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" if (z_buffer[(int)(point[0] + point[1] * *screen_width)] > point[2]) { \n"
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" continue; \n"
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" } \n"
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" \n"
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" \n"
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" for (int i = 0; i < 3; i++) { \n"
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" uv_vec[0] += uv_coords[i][0] * bc_coord[i]; \n"
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" uv_vec[1] += uv_coords[i][1] * bc_coord[i]; \n"
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" normal[i] = dot(norms[i], bc_coord); \n"
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" } \n"
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" int2 uv_point = (int2) { (int)(uv_vec[0] * map_size[0]), (int)(uv_vec[1] * map_size[1]) }; \n"
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" \n"
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" \n"
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" int col_index = 3 * (uv_point[0] + uv_point[1] * map_size[0]); \n"
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" \n"
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" \n"
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" \n"
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" \n"
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" float3 normalized_norm = normalize(normal); \n"
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" \n"
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" \n"
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" float intensity = clamp((dot(normalized_norm , (float3){light_dir[0], light_dir[1], light_dir[2]})), 0.f, 1.f) + 0.2; \n"
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" \n"
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" int color = 0; \n"
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" color |= ((int)fmin((float)(diffuse_map[col_index + 0]) * intensity, (float) 0xff)) << 16; \n"
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" color |= ((int)fmin((float)(diffuse_map[col_index + 1]) * intensity, (float) 0xff)) << 8; \n"
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" color |= ((int)fmin((float)(diffuse_map[col_index + 2]) * intensity, (float) 0xff)) << 0; \n"
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" \n"
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" //color |= ((int)fmin((float)(0xff) * intensity, (float) 0xff)) << 16; \n"
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" //color |= ((int)fmin((float)(0xff) * intensity, (float) 0xff)) << 8; \n"
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" //color |= ((int)fmin((float)(0xff) * intensity, (float) 0xff)) << 0; \n"
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" \n"
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" \n"
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" z_buffer[(int) (point[0] + point[1] * *screen_width)] = point[2]; \n"
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" pixels [(int) (point[0] + point[1] * *screen_width)] = color;// & 0x00ffffff; \n"
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" } \n"
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" } \n"
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"} \n";
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//#include "kernels.h"
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//
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//const char* vertex_shader_kernel_source =
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//"__kernel \n"
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//"void vertex_shader( __global float* m, \n"
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//" __global float* VertexBuffer, \n"
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//" __global float* NewVertexBuffer) \n"
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//"{ \n"
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//" int local_index = get_local_id(0); \n"
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//" int global_index = get_group_id(0); \n"
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//" NewVertexBuffer[4*global_index+local_index] = \n"
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//" m[local_index*4]*VertexBuffer[3*global_index] \n"
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//" + m[local_index*4 + 1]*VertexBuffer[3*global_index+1] \n"
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//" + m[local_index*4 + 2]*VertexBuffer[3*global_index+2] \n"
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//" + m[local_index*4 + 3]; \n"
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//"} \n";
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//
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//const char* fragment_shader_kernel_source =
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//"float3 barycentric(float3* pts, float3 P) \n"
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//"{ \n"
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//" float3 u = cross( \n"
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//" (float3){pts[0][2] - pts[0][0], pts[0][1] - pts[0][0], pts[0][0] - P[0]}, // AC_x, AB_x, distance_x \n"
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//" (float3){pts[1][2] - pts[1][0], pts[1][1] - pts[1][0], pts[1][0] - P[1]} // AC_y, AB_y, distance_y \n"
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//" ); \n"
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//" if (fabs(u[2]) < 1) return (float3){-1, 1, 1}; \n"
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//" return (float3){1.f - (u[0] + u[1]) / u[2], u[1] / u[2], u[0] / u[2]}; \n"
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//"} \n"
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//" \n"
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//"__kernel void fragment_shader ( \n"
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//" __global int3* faces, \n"
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//" __global float* vertices, \n"
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//" __global int* pixels, \n"
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//" __global int* screen_width, \n"
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//" __global float* z_buffer, \n"
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//" __global int* nfaces, \n"
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//" __global float* uv_buffer, \n"
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//" __global int* map_size, \n"
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//" __global float* light_dir, \n"
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//" __global float* norms_buff, \n"
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//" __global uchar* diffuse_map \n"
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//") { \n"
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//" int GROUP_ID = get_group_id(0); \n"
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//" int GROUP_SIZE = get_local_size(0); \n"
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//" int LOCAL_ID = get_local_id(0); \n"
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//" \n"
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//" bool out = true; \n"
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//" float3 vertices3[3]; \n"
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//" float2 uv_coords[3]; \n"
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//" float3 norms[3]; \n"
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//" \n"
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//" for(int i = 0; i < 3; i++) { \n"
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//" float4 vertex;// = vertices[faces[GROUP_ID * 3 + i ][0]]; \n"
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//" for(int j = 0; j < 4; j ++) { \n"
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//" vertex[j] = vertices[4 * faces[GROUP_ID*3 + i][0] + j]; \n"
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//" } \n"
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//" \n"
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//" for(int j = 0; j < 2; j++) { \n"
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//" uv_coords[i][j] = uv_buffer [2 * faces[GROUP_ID * 3 + i][1] + j]; \n"
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//" } \n"
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//" \n"
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//" for( int j = 0; j < 3; j++ ) { \n"
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//" vertices3[j][i] = (vertex[j]/vertex[3]); \n"
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//" norms[j][i] = norms_buff[3 * (faces[GROUP_ID * 3 + i][2]) + j]; \n"
|
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//" } \n"
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//" \n"
|
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//" if ( vertices3[0][i] > 0 && vertices3[0][i] < *screen_width \n"
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//" && vertices3[1][i] > 0 && vertices3[1][i] < *screen_width ) \n"
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//" out = false; \n"
|
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//" } \n"
|
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//" \n"
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//" if(out) return; \n"
|
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//" \n"
|
||||
//" //if(vertices3[1][0] == vertices3[1][1] && vertices3[1][2] == vertices3[1][1]) return; \n"
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//" \n"
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||||
//" int2 bounding_box_min = (int2) { *screen_width - 1, *screen_width - 1 }; \n"
|
||||
//" int2 bounding_box_max = (int2) { 0, 0 }; \n"
|
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//" int2 clamper = (int2) { *screen_width - 1, *screen_width - 1 }; \n"
|
||||
//" \n"
|
||||
//" for(int i = 0; i < 3; i++) { \n"
|
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//" for(int j = 0; j < 2; j++) { \n"
|
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//" bounding_box_min[j] = max(0, min(bounding_box_min[j], (int)vertices3[j][i])); \n"
|
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//" bounding_box_max[j] = min(clamper[j], max(bounding_box_max[j], (int)vertices3[j][i])); \n"
|
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//" } \n"
|
||||
//" } \n"
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||||
//" \n"
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||||
//" if(bounding_box_min[0] > *screen_width || bounding_box_max[0] < 0 || bounding_box_min[1] > *screen_width || bounding_box_max[1] < 0) return; \n"
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||||
//" \n"
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||||
//" \n"
|
||||
//" int X_PER_ITEM = (int)(ceil((float)(bounding_box_max[0] - bounding_box_min[0]) / 16.f)); \n"
|
||||
//" int Y_PER_ITEM = (int)(ceil((float)(bounding_box_max[1] - bounding_box_min[1]) / 16.f)); \n"
|
||||
//" float STARTING_X = bounding_box_min[0] + X_PER_ITEM * (LOCAL_ID % 16); \n"
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||||
//" float ENDING_X = STARTING_X + X_PER_ITEM; \n"
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||||
//" float STARTING_Y = bounding_box_min[1] + Y_PER_ITEM * (LOCAL_ID / 16); \n"
|
||||
//" float ENDING_Y = STARTING_Y + Y_PER_ITEM; \n"
|
||||
//" \n"
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||||
//" \n"
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||||
//" float3 point; \n"
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||||
//" for(point[0] = STARTING_X; point[0] <= ENDING_X; point[0]++) { \n"
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||||
//" for(point[1] = STARTING_Y; point[1] <= ENDING_Y; point[1]++) { \n"
|
||||
//" if(point[1] >= *screen_width || point[1] >= *screen_width) break; \n"
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||||
//" float3 bc_coord = barycentric(vertices3, point); \n"
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||||
//" if (bc_coord[0] < 0 || bc_coord[1] < 0 || bc_coord[2] < 0) continue; \n"
|
||||
//" \n"
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||||
//" float2 uv_vec = (float2){0, 0}; \n"
|
||||
//" float3 normal = (float3){0, 0, 0}; \n"
|
||||
//" \n"
|
||||
//" point[2] = dot(vertices3[2], bc_coord); \n"
|
||||
//" if (z_buffer[(int)(point[0] + point[1] * *screen_width)] > point[2]) { \n"
|
||||
//" continue; \n"
|
||||
//" } \n"
|
||||
//" \n"
|
||||
//" \n"
|
||||
//" for (int i = 0; i < 3; i++) { \n"
|
||||
//" uv_vec[0] += uv_coords[i][0] * bc_coord[i]; \n"
|
||||
//" uv_vec[1] += uv_coords[i][1] * bc_coord[i]; \n"
|
||||
//" normal[i] = dot(norms[i], bc_coord); \n"
|
||||
//" } \n"
|
||||
//" int2 uv_point = (int2) { (int)(uv_vec[0] * map_size[0]), (int)(uv_vec[1] * map_size[1]) }; \n"
|
||||
//" \n"
|
||||
//" \n"
|
||||
//" int col_index = 3 * (uv_point[0] + uv_point[1] * map_size[0]); \n"
|
||||
//" \n"
|
||||
//" \n"
|
||||
//" \n"
|
||||
//" \n"
|
||||
//" float3 normalized_norm = normalize(normal); \n"
|
||||
//" \n"
|
||||
//" \n"
|
||||
//" float intensity = clamp((dot(normalized_norm , (float3){light_dir[0], light_dir[1], light_dir[2]})), 0.f, 1.f) + 0.2; \n"
|
||||
//" \n"
|
||||
//" int color = 0; \n"
|
||||
//" color |= ((int)fmin((float)(diffuse_map[col_index + 0]) * intensity, (float) 0xff)) << 16; \n"
|
||||
//" color |= ((int)fmin((float)(diffuse_map[col_index + 1]) * intensity, (float) 0xff)) << 8; \n"
|
||||
//" color |= ((int)fmin((float)(diffuse_map[col_index + 2]) * intensity, (float) 0xff)) << 0; \n"
|
||||
//" \n"
|
||||
//" //color |= ((int)fmin((float)(0xff) * intensity, (float) 0xff)) << 16; \n"
|
||||
//" //color |= ((int)fmin((float)(0xff) * intensity, (float) 0xff)) << 8; \n"
|
||||
//" //color |= ((int)fmin((float)(0xff) * intensity, (float) 0xff)) << 0; \n"
|
||||
//" \n"
|
||||
//" \n"
|
||||
//" z_buffer[(int) (point[0] + point[1] * *screen_width)] = point[2]; \n"
|
||||
//" pixels [(int) (point[0] + point[1] * *screen_width)] = color;// & 0x00ffffff; \n"
|
||||
//" } \n"
|
||||
//" } \n"
|
||||
//"} \n";
|
||||
|
||||
+8
-172
@@ -11,65 +11,20 @@ cl_platform_id platform_id;
|
||||
cl_device_id device_id;
|
||||
cl_context context;
|
||||
|
||||
int triangles_drawn = 0;
|
||||
|
||||
// Matrix Multiplication Variables
|
||||
#define MATRIX_SIZE 16
|
||||
|
||||
// vertex shader
|
||||
cl_mem mat_z;
|
||||
cl_mem vertices_mem;
|
||||
cl_mem new_vertices_mem;
|
||||
bool vertex_shader_buffers_initialized = false;
|
||||
//==================
|
||||
// fragment shader
|
||||
// int* faces,
|
||||
// int nfaces,
|
||||
// float* new_verts,
|
||||
// int nverts,
|
||||
// int screen_width,
|
||||
// int screen_height,
|
||||
// float* z_buffer,
|
||||
// float* uniform_m,
|
||||
// float* uniform_mit,
|
||||
// float* light_dir,
|
||||
// const char* diffuse_map,
|
||||
// const char* normal_map,
|
||||
// const char* spec_map,
|
||||
// char* pixel_data
|
||||
cl_mem faces_buffer;
|
||||
cl_mem uniform_m;
|
||||
cl_mem uniform_mit;
|
||||
cl_mem light_dir_buffer;
|
||||
cl_mem diffuse_map_buffer;
|
||||
cl_mem norms_mem;
|
||||
cl_mem spec_map_buffer;
|
||||
int* hidden_pixel_buffer;
|
||||
bool fragment_shader_buffers_initialized = false;
|
||||
cl_mem triangles_verts_mem;
|
||||
cl_mem bounding_box_min_mem;
|
||||
cl_mem z_buffer_mem;
|
||||
cl_mem pixel_data_buffer;
|
||||
cl_mem screen_width_mem;
|
||||
cl_mem nfaces_mem;
|
||||
cl_mem uv_buffer;
|
||||
cl_mem map_size_buffer;
|
||||
//==================
|
||||
|
||||
cl_platform_id* platforms = NULL;
|
||||
cl_device_id* devices = NULL;
|
||||
|
||||
cl_program vertex_shader_prog;
|
||||
cl_program fragment_shader_prog;
|
||||
cl_kernel vertex_shader_kernel;
|
||||
cl_kernel fragment_shader_kernel;
|
||||
cl_command_queue commands;
|
||||
|
||||
int err;
|
||||
|
||||
|
||||
void init_kernels() {
|
||||
|
||||
err = clGetPlatformIDs(0, NULL, &numPlatforms);
|
||||
platforms = (cl_platform_id*)malloc(sizeof(cl_platform_id) * numPlatforms);
|
||||
err = clGetPlatformIDs(numPlatforms, platforms, NULL);
|
||||
@@ -82,156 +37,37 @@ void init_kernels() {
|
||||
|
||||
commands = clCreateCommandQueue(context, devices[0], 0, &err);
|
||||
|
||||
vertex_shader_prog = clCreateProgramWithSource(context, 1, (const char **)&vertex_shader_kernel_source, NULL, &err);
|
||||
fragment_shader_prog = clCreateProgramWithSource(context, 1, (const char**)&fragment_shader_kernel_source, NULL, &err);
|
||||
err = clBuildProgram(vertex_shader_prog, 1, devices, NULL, NULL, NULL);
|
||||
err = clBuildProgram(fragment_shader_prog, 1, devices, NULL, NULL, NULL);
|
||||
|
||||
if (err != CL_SUCCESS)
|
||||
{
|
||||
size_t len;
|
||||
char buffer[2048];
|
||||
printf("Error: Failed to build the fragment shader prog!\n");
|
||||
clGetProgramBuildInfo(fragment_shader_prog, devices[0], CL_PROGRAM_BUILD_LOG, sizeof(buffer), buffer, &len);
|
||||
printf(buffer);
|
||||
//return;
|
||||
hidden_pixel_buffer = new int[screen_width*screen_height];
|
||||
pixel_data_buffer = clCreateBuffer(context, CL_MEM_WRITE_ONLY, sizeof(int) * screen_height * screen_width , NULL, &err);
|
||||
z_buffer_mem = clCreateBuffer(context, CL_MEM_READ_ONLY , sizeof(float) * screen_height * screen_width, NULL, &err);
|
||||
}
|
||||
|
||||
vertex_shader_kernel = clCreateKernel(vertex_shader_prog, "vertex_shader", &err);
|
||||
fragment_shader_kernel = clCreateKernel(fragment_shader_prog, "fragment_shader", &err);
|
||||
err = 0;
|
||||
}
|
||||
|
||||
void vertex_shader(float* z, float* vertices, int vertex_count, float* new_vertices) {
|
||||
if(!vertex_shader_buffers_initialized)
|
||||
{
|
||||
mat_z = clCreateBuffer(context, CL_MEM_READ_ONLY , sizeof(float) * MATRIX_SIZE , NULL, &err);
|
||||
vertices_mem = clCreateBuffer(context, CL_MEM_READ_ONLY , sizeof(float) * vertex_count * 3, NULL, &err);
|
||||
new_vertices_mem = clCreateBuffer(context, CL_MEM_WRITE_ONLY, sizeof(cl_float4) * vertex_count, NULL, &err);
|
||||
|
||||
err = clSetKernelArg(vertex_shader_kernel, 0, sizeof(cl_mem), &mat_z);
|
||||
err = clSetKernelArg(vertex_shader_kernel, 1, sizeof(cl_mem), &vertices_mem);
|
||||
err = clSetKernelArg(vertex_shader_kernel, 2, sizeof(cl_mem), &new_vertices_mem);
|
||||
vertex_shader_buffers_initialized = true;
|
||||
}
|
||||
|
||||
err = clEnqueueWriteBuffer(commands, mat_z , CL_TRUE, 0, sizeof(float) * MATRIX_SIZE, z, 0, NULL, NULL);
|
||||
err = clEnqueueWriteBuffer(commands, vertices_mem, CL_TRUE, 0, sizeof(float) * vertex_count * 3, vertices, 0, NULL, NULL);
|
||||
|
||||
size_t vertex_shader_global[] = { vertex_count*4 };
|
||||
size_t vertex_shader_local[] = { 4 };
|
||||
err = clEnqueueNDRangeKernel(commands, vertex_shader_kernel, 1, NULL, vertex_shader_global, vertex_shader_local, 0, NULL, NULL);
|
||||
}
|
||||
|
||||
void clear_pixel_buffer() {
|
||||
for (int i = 0; i < screen_width * screen_height; i++) {
|
||||
hidden_pixel_buffer[i] = 0;
|
||||
}
|
||||
}
|
||||
|
||||
void clear(cl_mem* buffer, size_t size, const int pattern) {
|
||||
clEnqueueFillBuffer(commands, *buffer, &pattern, sizeof(int), 0, size, 0, NULL, NULL);
|
||||
}
|
||||
|
||||
void fragment_shader(
|
||||
cl_int3* faces,
|
||||
int nfaces,
|
||||
float* uv,
|
||||
size_t uv_size,
|
||||
float* uniform_m,
|
||||
float* uniform_mit,
|
||||
float* light_dir,
|
||||
unsigned char* diffuse_map,
|
||||
float* norms,
|
||||
size_t norms_size,
|
||||
unsigned char* spec_map,
|
||||
int* map_size
|
||||
) {
|
||||
if (!fragment_shader_buffers_initialized) {
|
||||
|
||||
faces_buffer = clCreateBuffer(context, CL_MEM_READ_ONLY , sizeof(cl_int3) * 3 * nfaces , NULL, &err);
|
||||
pixel_data_buffer = clCreateBuffer(context, CL_MEM_WRITE_ONLY, sizeof(int) * screen_height * screen_width , NULL, &err);
|
||||
screen_width_mem = clCreateBuffer(context, CL_MEM_READ_ONLY , sizeof(int) , NULL, &err);
|
||||
z_buffer_mem = clCreateBuffer(context, CL_MEM_READ_ONLY , sizeof(float) * screen_height * screen_width, NULL, &err);
|
||||
nfaces_mem = clCreateBuffer(context, CL_MEM_READ_ONLY , sizeof(int) , NULL, &err);
|
||||
uv_buffer = clCreateBuffer(context, CL_MEM_READ_ONLY , uv_size , NULL, &err);
|
||||
map_size_buffer = clCreateBuffer(context, CL_MEM_READ_ONLY , sizeof(int) * 2 , NULL, &err);
|
||||
norms_mem = clCreateBuffer(context, CL_MEM_READ_ONLY , norms_size , NULL, &err);
|
||||
light_dir_buffer = clCreateBuffer(context, CL_MEM_READ_ONLY , sizeof(float) * 3 , NULL, &err);
|
||||
diffuse_map_buffer = clCreateBuffer(context, CL_MEM_READ_ONLY , sizeof(char) * 3 * map_size[0] * map_size[1] , NULL, &err);
|
||||
|
||||
|
||||
err = clSetKernelArg(fragment_shader_kernel, 0, sizeof(cl_mem), &faces_buffer);
|
||||
err = clSetKernelArg(fragment_shader_kernel, 1, sizeof(cl_mem), &new_vertices_mem);
|
||||
err = clSetKernelArg(fragment_shader_kernel, 2, sizeof(cl_mem), &pixel_data_buffer);
|
||||
err = clSetKernelArg(fragment_shader_kernel, 3, sizeof(cl_mem), &screen_width_mem);
|
||||
err = clSetKernelArg(fragment_shader_kernel, 4, sizeof(cl_mem), &z_buffer_mem);
|
||||
err = clSetKernelArg(fragment_shader_kernel, 5, sizeof(cl_mem), &nfaces_mem);
|
||||
err = clSetKernelArg(fragment_shader_kernel, 6, sizeof(cl_mem), &uv_buffer);
|
||||
err = clSetKernelArg(fragment_shader_kernel, 7, sizeof(cl_mem), &map_size_buffer);
|
||||
err = clSetKernelArg(fragment_shader_kernel, 8, sizeof(cl_mem), &light_dir_buffer);
|
||||
err = clSetKernelArg(fragment_shader_kernel, 9, sizeof(cl_mem), &norms_mem);
|
||||
err = clSetKernelArg(fragment_shader_kernel, 10, sizeof(cl_mem), &diffuse_map_buffer);
|
||||
|
||||
err = clEnqueueWriteBuffer(commands, screen_width_mem , CL_FALSE, 0, sizeof(int) , &screen_width , 0, NULL, NULL);
|
||||
err = clEnqueueWriteBuffer(commands, faces_buffer , CL_FALSE, 0, sizeof(cl_int3) * 3 * nfaces , faces , 0, NULL, NULL);
|
||||
err = clEnqueueWriteBuffer(commands, nfaces_mem , CL_FALSE, 0, sizeof(int) , &nfaces , 0, NULL, NULL);
|
||||
err = clEnqueueWriteBuffer(commands, uv_buffer , CL_FALSE, 0, uv_size , uv , 0, NULL, NULL);
|
||||
err = clEnqueueWriteBuffer(commands, map_size_buffer , CL_FALSE, 0, sizeof(int) * 2 , map_size , 0, NULL, NULL);
|
||||
err = clEnqueueWriteBuffer(commands, light_dir_buffer , CL_FALSE, 0, sizeof(float) * 3 , light_dir , 0, NULL, NULL);
|
||||
err = clEnqueueWriteBuffer(commands, norms_mem , CL_FALSE, 0, norms_size , norms , 0, NULL, NULL);
|
||||
err = clEnqueueWriteBuffer(commands, diffuse_map_buffer, CL_FALSE, 0, sizeof(char) * 3 * map_size[0] * map_size[1], diffuse_map , 0, NULL, NULL);
|
||||
|
||||
hidden_pixel_buffer = new int[screen_width*screen_height];
|
||||
fragment_shader_buffers_initialized = true;
|
||||
}
|
||||
|
||||
void new_frame() {
|
||||
clear(&pixel_data_buffer, sizeof(int) * screen_width * screen_height, 0);
|
||||
clear(&z_buffer_mem, sizeof(float) * screen_width * screen_height, 0);
|
||||
}
|
||||
|
||||
|
||||
size_t fragment_shader_global[] = { nfaces * 256 };
|
||||
size_t framgent_shader_local[] = { 256 };
|
||||
|
||||
err = clEnqueueNDRangeKernel(commands, fragment_shader_kernel, 1, NULL, fragment_shader_global, NULL, 0, NULL, NULL);
|
||||
|
||||
err = clEnqueueReadBuffer(commands, pixel_data_buffer, CL_TRUE, 0, sizeof(int) * screen_height * screen_width, hidden_pixel_buffer, 0, NULL, NULL);
|
||||
void end_frame() {
|
||||
clFinish(commands);
|
||||
clEnqueueReadBuffer(commands, pixel_data_buffer, CL_TRUE, 0, sizeof(int) * screen_height * screen_width, hidden_pixel_buffer, 0, NULL, NULL);
|
||||
|
||||
for (int j = 0; j < screen_height; j++)
|
||||
for (int i = 0; i < screen_width; i++)
|
||||
set_pixel(i, j, hidden_pixel_buffer[j * screen_width + i]);
|
||||
|
||||
|
||||
|
||||
}
|
||||
|
||||
void destroy_kernels()
|
||||
{
|
||||
clReleaseProgram(vertex_shader_prog);
|
||||
clReleaseKernel(vertex_shader_kernel);
|
||||
if (vertex_shader_buffers_initialized) {
|
||||
clReleaseMemObject(mat_z);
|
||||
clReleaseMemObject(vertices_mem);
|
||||
clReleaseMemObject(new_vertices_mem);
|
||||
}
|
||||
|
||||
if (fragment_shader_buffers_initialized) {
|
||||
clReleaseMemObject(faces_buffer);
|
||||
clReleaseMemObject(screen_width_mem);
|
||||
clReleaseMemObject(z_buffer_mem);
|
||||
clReleaseMemObject(pixel_data_buffer);
|
||||
clReleaseMemObject(screen_width_mem);
|
||||
clReleaseMemObject(nfaces_mem);
|
||||
clReleaseMemObject(uv_buffer);
|
||||
clReleaseMemObject(map_size_buffer);
|
||||
clReleaseMemObject(light_dir_buffer);
|
||||
clReleaseMemObject(norms_mem);
|
||||
clReleaseMemObject(diffuse_map_buffer);
|
||||
}
|
||||
clReleaseCommandQueue(commands);
|
||||
|
||||
free(hidden_pixel_buffer);
|
||||
|
||||
|
||||
clReleaseContext(context);
|
||||
}
|
||||
|
||||
+10
-16
@@ -32,24 +32,18 @@ extern const char* matrix_mul_kernel_source;
|
||||
extern const char* vertex_shader_kernel_source;
|
||||
extern const char* fragment_shader_kernel_source;
|
||||
|
||||
void init_kernels();
|
||||
void vertex_shader(float* z, float* vertices, int vertex_count, float* new_vertices);
|
||||
void fragment_shader(
|
||||
cl_int3* faces,
|
||||
int nfaces,
|
||||
float* uv,
|
||||
size_t uv_size,
|
||||
float* uniform_m,
|
||||
float* uniform_mit,
|
||||
float* light_dir,
|
||||
unsigned char* diffuse_map,
|
||||
float* norms,
|
||||
size_t norms_size,
|
||||
unsigned char* spec_map,
|
||||
int* map_size
|
||||
);
|
||||
extern cl_command_queue commands;
|
||||
extern cl_platform_id* platforms;
|
||||
extern cl_device_id* devices;
|
||||
extern cl_context context;
|
||||
|
||||
extern cl_mem z_buffer_mem;
|
||||
extern cl_mem pixel_data_buffer;
|
||||
|
||||
void init_kernels();
|
||||
void destroy_kernels();
|
||||
void new_frame();
|
||||
void end_frame();
|
||||
|
||||
|
||||
|
||||
|
||||
@@ -98,6 +98,7 @@ LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
|
||||
break;
|
||||
case WM_CLOSE:
|
||||
DestroyWindow(hwnd);
|
||||
free_renderer();
|
||||
destroy_kernels();
|
||||
break;
|
||||
case WM_DESTROY:
|
||||
|
||||
+248
-4
@@ -45,13 +45,16 @@ Model::Model(const char *filename) : verts_(), faces_(), norms_(), uv_(), diffus
|
||||
faces_.push_back(f);
|
||||
}
|
||||
}
|
||||
std::cerr << "# v# " << verts_.size() << " f# " << faces_.size() << " vt# " << uv_.size() << " vn# " << norms_.size() << std::endl;
|
||||
//std::cerr << "# v# " << verts_.size() << " f# " << faces_.size() << " vt# " << uv_.size() << " vn# " << norms_.size() << std::endl;
|
||||
load_texture(filename, "_diffuse.tga", diffusemap_);
|
||||
load_texture(filename, "_nm_tangent.tga", normalmap_);
|
||||
load_texture(filename, "_spec.tga", specularmap_);
|
||||
//load_texture(filename, "_nm_tangent.tga", normalmap_);
|
||||
//load_texture(filename, "_spec.tga", specularmap_);
|
||||
init_kernels();
|
||||
}
|
||||
|
||||
Model::~Model() {}
|
||||
Model::~Model() {
|
||||
release_kernels();
|
||||
}
|
||||
|
||||
void Model::ApplyTransform() {
|
||||
Transform = Translation * Scale * Rotation;
|
||||
@@ -141,3 +144,244 @@ Vec3f Model::normal(int iface, int nthvert) {
|
||||
return norms_[idx].normalize();
|
||||
}
|
||||
|
||||
void Model::init_kernels() {
|
||||
vertex_shader_prog = clCreateProgramWithSource(context, 1, (const char **)&vertex_shader_kernel_source, NULL, &err);
|
||||
err = clBuildProgram(vertex_shader_prog, 1, devices, NULL, NULL, NULL);
|
||||
vertex_shader_kernel = clCreateKernel(vertex_shader_prog, "vertex_shader", &err);
|
||||
vertex_shader_matz = clCreateBuffer(context, CL_MEM_READ_ONLY, sizeof(float) * 16, NULL, &err);
|
||||
vertex_shader_vertices = clCreateBuffer(context, CL_MEM_READ_ONLY, sizeof(float) * nverts() * 3, NULL, &err);
|
||||
new_vertices_mem = clCreateBuffer(context, CL_MEM_WRITE_ONLY, sizeof(cl_float4) * nverts(), NULL, &err);
|
||||
|
||||
clSetKernelArg(vertex_shader_kernel, 0, sizeof(cl_mem), &vertex_shader_matz);
|
||||
clSetKernelArg(vertex_shader_kernel, 1, sizeof(cl_mem), &vertex_shader_vertices);
|
||||
clSetKernelArg(vertex_shader_kernel, 2, sizeof(cl_mem), &new_vertices_mem);
|
||||
clEnqueueWriteBuffer(commands, vertex_shader_vertices, CL_TRUE, 0, sizeof(float) * nverts() * 3, *(float**)((Vec3f*) &verts_), 0, NULL, NULL);
|
||||
|
||||
int map_size[] = { diffusemap_.get_width(), diffusemap_.get_height() };
|
||||
faces = (cl_int3*)malloc(3 * sizeof(cl_int3) * nfaces());
|
||||
for (int i = 0; i < nfaces(); i++) {
|
||||
for (int j = 0; j < 3; j++) {
|
||||
faces[i * 3 + j].x = faces_[i][j][0];
|
||||
faces[i * 3 + j].y = faces_[i][j][1];
|
||||
faces[i * 3 + j].z = faces_[i][j][2];
|
||||
}
|
||||
}
|
||||
|
||||
fragment_shader_prog = clCreateProgramWithSource(context, 1, (const char**)&fragment_shader_kernel_source, NULL, &err);
|
||||
err = clBuildProgram(fragment_shader_prog, 1, devices, NULL, NULL, NULL);
|
||||
fragment_shader_kernel = clCreateKernel(fragment_shader_prog, "fragment_shader", &err);
|
||||
|
||||
fragment_shader_faces = clCreateBuffer(context, CL_MEM_READ_ONLY , sizeof(cl_int3) * 3 * nfaces() , NULL, &err);
|
||||
fragment_shader_screen_width = clCreateBuffer(context, CL_MEM_READ_ONLY , sizeof(int) , NULL, &err);
|
||||
fragment_shader_uv = clCreateBuffer(context, CL_MEM_READ_ONLY , sizeof(float) * uv_.size() * 2 , NULL, &err);
|
||||
fragment_shader_map_size = clCreateBuffer(context, CL_MEM_READ_ONLY , sizeof(int) * 2 , NULL, &err);
|
||||
fragment_shader_norms = clCreateBuffer(context, CL_MEM_READ_ONLY , sizeof(float) * norms_.size() * 3 , NULL, &err);
|
||||
fragment_shader_light_dir = clCreateBuffer(context, CL_MEM_READ_ONLY , sizeof(float) * 3 , NULL, &err);
|
||||
fragment_shader_diffuse_map = clCreateBuffer(context, CL_MEM_READ_ONLY , sizeof(char) * 3 * map_size[0] * map_size[1] , NULL, &err);
|
||||
|
||||
clSetKernelArg(fragment_shader_kernel, 0, sizeof(cl_mem), &fragment_shader_faces);
|
||||
clSetKernelArg(fragment_shader_kernel, 1, sizeof(cl_mem), &new_vertices_mem);
|
||||
clSetKernelArg(fragment_shader_kernel, 2, sizeof(cl_mem), &pixel_data_buffer);
|
||||
clSetKernelArg(fragment_shader_kernel, 3, sizeof(cl_mem), &fragment_shader_screen_width);
|
||||
clSetKernelArg(fragment_shader_kernel, 4, sizeof(cl_mem), &z_buffer_mem);
|
||||
clSetKernelArg(fragment_shader_kernel, 5, sizeof(cl_mem), &fragment_shader_uv);
|
||||
clSetKernelArg(fragment_shader_kernel, 6, sizeof(cl_mem), &fragment_shader_map_size);
|
||||
clSetKernelArg(fragment_shader_kernel, 7, sizeof(cl_mem), &fragment_shader_light_dir);
|
||||
clSetKernelArg(fragment_shader_kernel, 8, sizeof(cl_mem), &fragment_shader_norms);
|
||||
clSetKernelArg(fragment_shader_kernel, 9, sizeof(cl_mem), &fragment_shader_diffuse_map);
|
||||
|
||||
clEnqueueWriteBuffer(commands, fragment_shader_screen_width, CL_FALSE, 0, sizeof(int) , &screen_width , 0, NULL, NULL);
|
||||
clEnqueueWriteBuffer(commands, fragment_shader_faces , CL_FALSE, 0, sizeof(cl_int3) * 3 * nfaces() , faces , 0, NULL, NULL);
|
||||
clEnqueueWriteBuffer(commands, fragment_shader_uv , CL_FALSE, 0, sizeof(float) * 2 * uv_.size() , *(float**)((Vec2f*)&uv_) , 0, NULL, NULL);
|
||||
clEnqueueWriteBuffer(commands, fragment_shader_map_size , CL_FALSE, 0, sizeof(int) * 2 , map_size , 0, NULL, NULL);
|
||||
clEnqueueWriteBuffer(commands, fragment_shader_norms , CL_FALSE, 0, sizeof(float) * norms_.size() * 3 , *(float**)((Vec3f*)&norms_), 0, NULL, NULL);
|
||||
clEnqueueWriteBuffer(commands, fragment_shader_diffuse_map , CL_TRUE, 0, sizeof(char) * 3 * map_size[0] * map_size[1], diffusemap_.data , 0, NULL, NULL);
|
||||
}
|
||||
|
||||
void Model::vertex(float* z) {
|
||||
size_t vertex_shader_global[] = { nverts() * 4 };
|
||||
size_t vertex_shader_local[] = { 4 };
|
||||
|
||||
clEnqueueWriteBuffer(commands, vertex_shader_matz, CL_TRUE, 0, sizeof(float) * 16, z, 0, NULL, NULL);
|
||||
|
||||
clEnqueueNDRangeKernel(commands, vertex_shader_kernel, 1, NULL, vertex_shader_global, vertex_shader_local, 0, NULL, NULL);
|
||||
}
|
||||
void Model::fragment(float* light_dir) {
|
||||
clEnqueueWriteBuffer(commands, fragment_shader_light_dir, CL_FALSE, 0, sizeof(float) * 3, light_dir, 0, NULL, NULL);
|
||||
size_t fragment_shader_global[] = { nfaces() * 256 };
|
||||
size_t fragment_shader_local[] = { 256 };
|
||||
|
||||
clEnqueueNDRangeKernel(commands, fragment_shader_kernel, 1, NULL, fragment_shader_global, fragment_shader_local, 0, NULL, NULL);
|
||||
|
||||
}
|
||||
void Model::render(Matrix* z, float* light_dir) {
|
||||
Matrix m = *z * Transform;
|
||||
vertex((float*)&m);
|
||||
clFinish(commands);
|
||||
fragment(light_dir);
|
||||
}
|
||||
void Model::release_kernels() {
|
||||
|
||||
clReleaseProgram(vertex_shader_prog);
|
||||
clReleaseKernel(vertex_shader_kernel);
|
||||
clReleaseMemObject(vertex_shader_matz);
|
||||
clReleaseMemObject(vertex_shader_vertices);
|
||||
clReleaseMemObject(new_vertices_mem);
|
||||
|
||||
clReleaseProgram(fragment_shader_prog);
|
||||
clReleaseKernel(fragment_shader_kernel);
|
||||
clReleaseMemObject(fragment_shader_faces);
|
||||
clReleaseMemObject(fragment_shader_screen_width);
|
||||
clReleaseMemObject(fragment_shader_uv);
|
||||
clReleaseMemObject(fragment_shader_map_size);
|
||||
clReleaseMemObject(fragment_shader_norms);
|
||||
clReleaseMemObject(fragment_shader_light_dir);
|
||||
clReleaseMemObject(fragment_shader_diffuse_map);
|
||||
|
||||
free(faces);
|
||||
}
|
||||
|
||||
|
||||
|
||||
const char* vertex_shader_kernel_source =
|
||||
"__kernel \n"
|
||||
"void vertex_shader( __global float* m, \n"
|
||||
" __global float* VertexBuffer, \n"
|
||||
" __global float* NewVertexBuffer) \n"
|
||||
"{ \n"
|
||||
" int local_index = get_local_id(0); \n"
|
||||
" int global_index = get_group_id(0); \n"
|
||||
" NewVertexBuffer[4*global_index+local_index] = \n"
|
||||
" m[local_index*4]*VertexBuffer[3*global_index] \n"
|
||||
" + m[local_index*4 + 1]*VertexBuffer[3*global_index+1] \n"
|
||||
" + m[local_index*4 + 2]*VertexBuffer[3*global_index+2] \n"
|
||||
" + m[local_index*4 + 3]; \n"
|
||||
"} \n";
|
||||
|
||||
const char* fragment_shader_kernel_source =
|
||||
"float3 barycentric(float3* pts, float3 P) \n"
|
||||
"{ \n"
|
||||
" float3 u = cross( \n"
|
||||
" (float3){pts[0][2] - pts[0][0], pts[0][1] - pts[0][0], pts[0][0] - P[0]}, // AC_x, AB_x, distance_x \n"
|
||||
" (float3){pts[1][2] - pts[1][0], pts[1][1] - pts[1][0], pts[1][0] - P[1]} // AC_y, AB_y, distance_y \n"
|
||||
" ); \n"
|
||||
" if (fabs(u[2]) < 1) return (float3){-1, 1, 1}; \n"
|
||||
" return (float3){1.f - (u[0] + u[1]) / u[2], u[1] / u[2], u[0] / u[2]}; \n"
|
||||
"} \n"
|
||||
" \n"
|
||||
"__kernel void fragment_shader ( \n"
|
||||
" __global int3* faces, \n"
|
||||
" __global float* vertices, \n"
|
||||
" __global int* pixels, \n"
|
||||
" __global int* screen_width, \n"
|
||||
" __global float* z_buffer, \n"
|
||||
" __global float* uv_buffer, \n"
|
||||
" __global int* map_size, \n"
|
||||
" __global float* light_dir, \n"
|
||||
" __global float* norms_buff, \n"
|
||||
" __global uchar* diffuse_map \n"
|
||||
") { \n"
|
||||
" int GROUP_ID = get_group_id(0); \n"
|
||||
" int GROUP_SIZE = get_local_size(0); \n"
|
||||
" int LOCAL_ID = get_local_id(0); \n"
|
||||
" \n"
|
||||
" bool out = true; \n"
|
||||
" float3 vertices3[3]; \n"
|
||||
" float2 uv_coords[3]; \n"
|
||||
" float3 norms[3]; \n"
|
||||
" \n"
|
||||
" for(int i = 0; i < 3; i++) { \n"
|
||||
" float4 vertex;// = vertices[faces[GROUP_ID * 3 + i ][0]]; \n"
|
||||
" for(int j = 0; j < 4; j ++) { \n"
|
||||
" vertex[j] = vertices[4 * faces[GROUP_ID*3 + i][0] + j]; \n"
|
||||
" } \n"
|
||||
" \n"
|
||||
" for(int j = 0; j < 2; j++) { \n"
|
||||
" uv_coords[i][j] = uv_buffer [2 * faces[GROUP_ID * 3 + i][1] + j]; \n"
|
||||
" } \n"
|
||||
" \n"
|
||||
" for( int j = 0; j < 3; j++ ) { \n"
|
||||
" vertices3[j][i] = (vertex[j]/vertex[3]); \n"
|
||||
" norms[j][i] = norms_buff[3 * (faces[GROUP_ID * 3 + i][2]) + j]; \n"
|
||||
" } \n"
|
||||
" \n"
|
||||
" if ( vertices3[0][i] > 0 && vertices3[0][i] < *screen_width \n"
|
||||
" && vertices3[1][i] > 0 && vertices3[1][i] < *screen_width ) \n"
|
||||
" out = false; \n"
|
||||
" } \n"
|
||||
" \n"
|
||||
" if(out) return; \n"
|
||||
" \n"
|
||||
" //if(vertices3[1][0] == vertices3[1][1] && vertices3[1][2] == vertices3[1][1]) return; \n"
|
||||
" \n"
|
||||
" int2 bounding_box_min = (int2) { *screen_width - 1, *screen_width - 1 }; \n"
|
||||
" int2 bounding_box_max = (int2) { 0, 0 }; \n"
|
||||
" int2 clamper = (int2) { *screen_width - 1, *screen_width - 1 }; \n"
|
||||
" \n"
|
||||
" for(int i = 0; i < 3; i++) { \n"
|
||||
" for(int j = 0; j < 2; j++) { \n"
|
||||
" bounding_box_min[j] = max(0, min(bounding_box_min[j], (int)vertices3[j][i])); \n"
|
||||
" bounding_box_max[j] = min(clamper[j], max(bounding_box_max[j], (int)vertices3[j][i])); \n"
|
||||
" } \n"
|
||||
" } \n"
|
||||
" \n"
|
||||
" if(bounding_box_min[0] > *screen_width || bounding_box_max[0] < 0 || bounding_box_min[1] > *screen_width || bounding_box_max[1] < 0) return; \n"
|
||||
" \n"
|
||||
" \n"
|
||||
" int X_PER_ITEM = (int)(ceil((float)(bounding_box_max[0] - bounding_box_min[0]) / 16.f)); \n"
|
||||
" int Y_PER_ITEM = (int)(ceil((float)(bounding_box_max[1] - bounding_box_min[1]) / 16.f)); \n"
|
||||
" float STARTING_X = bounding_box_min[0] + X_PER_ITEM * (LOCAL_ID % 16); \n"
|
||||
" float ENDING_X = STARTING_X + X_PER_ITEM; \n"
|
||||
" float STARTING_Y = bounding_box_min[1] + Y_PER_ITEM * (LOCAL_ID / 16); \n"
|
||||
" float ENDING_Y = STARTING_Y + Y_PER_ITEM; \n"
|
||||
" \n"
|
||||
" \n"
|
||||
" float3 point; \n"
|
||||
" for(point[0] = STARTING_X; point[0] <= ENDING_X; point[0]++) { \n"
|
||||
" for(point[1] = STARTING_Y; point[1] <= ENDING_Y; point[1]++) { \n"
|
||||
" if(point[1] >= *screen_width || point[1] >= *screen_width) break; \n"
|
||||
" float3 bc_coord = barycentric(vertices3, point); \n"
|
||||
" if (bc_coord[0] < 0 || bc_coord[1] < 0 || bc_coord[2] < 0) continue; \n"
|
||||
" \n"
|
||||
" float2 uv_vec = (float2){0, 0}; \n"
|
||||
" float3 normal = (float3){0, 0, 0}; \n"
|
||||
" \n"
|
||||
" point[2] = dot(vertices3[2], bc_coord); \n"
|
||||
" if (z_buffer[(int)(point[0] + point[1] * *screen_width)] > point[2]) { \n"
|
||||
" continue; \n"
|
||||
" } \n"
|
||||
" \n"
|
||||
" \n"
|
||||
" for (int i = 0; i < 3; i++) { \n"
|
||||
" uv_vec[0] += uv_coords[i][0] * bc_coord[i]; \n"
|
||||
" uv_vec[1] += uv_coords[i][1] * bc_coord[i]; \n"
|
||||
" normal[i] = dot(norms[i], bc_coord); \n"
|
||||
" } \n"
|
||||
" int2 uv_point = (int2) { (int)(uv_vec[0] * map_size[0]), (int)(uv_vec[1] * map_size[1]) }; \n"
|
||||
" \n"
|
||||
" \n"
|
||||
" int col_index = 3 * (uv_point[0] + uv_point[1] * map_size[0]); \n"
|
||||
" \n"
|
||||
" \n"
|
||||
" \n"
|
||||
" \n"
|
||||
" float3 normalized_norm = normalize(normal); \n"
|
||||
" \n"
|
||||
" \n"
|
||||
" float intensity = clamp((dot(normalized_norm , (float3){light_dir[0], light_dir[1], light_dir[2]})), 0.f, 1.f) + 0.2; \n"
|
||||
" \n"
|
||||
" int color = 0; \n"
|
||||
" color |= ((int)fmin((float)(diffuse_map[col_index + 0]) * intensity, (float) 0xff)) << 16; \n"
|
||||
" color |= ((int)fmin((float)(diffuse_map[col_index + 1]) * intensity, (float) 0xff)) << 8; \n"
|
||||
" color |= ((int)fmin((float)(diffuse_map[col_index + 2]) * intensity, (float) 0xff)) << 0; \n"
|
||||
" \n"
|
||||
" //color |= ((int)fmin((float)(0xff) * intensity, (float) 0xff)) << 16; \n"
|
||||
" //color |= ((int)fmin((float)(0xff) * intensity, (float) 0xff)) << 8; \n"
|
||||
" //color |= ((int)fmin((float)(0xff) * intensity, (float) 0xff)) << 0; \n"
|
||||
" \n"
|
||||
" \n"
|
||||
" z_buffer[(int) (point[0] + point[1] * *screen_width)] = point[2]; \n"
|
||||
" pixels [(int) (point[0] + point[1] * *screen_width)] = color;// & 0x00ffffff; \n"
|
||||
" } \n"
|
||||
" } \n"
|
||||
"} \n";
|
||||
|
||||
@@ -4,6 +4,8 @@
|
||||
#include <string>
|
||||
#include "geometry.h"
|
||||
#include "tgaimage.h"
|
||||
#include "kernels.h"
|
||||
#include "util_window.h"
|
||||
|
||||
class Model {
|
||||
private:
|
||||
@@ -16,6 +18,22 @@ public:
|
||||
std::vector<std::vector<Vec3i> > faces_; // attention, this Vec3i means vertex/uv/normal
|
||||
std::vector<Vec3f> norms_;
|
||||
std::vector<Vec2f> uv_;
|
||||
cl_program vertex_shader_prog;
|
||||
cl_program fragment_shader_prog;
|
||||
cl_kernel vertex_shader_kernel;
|
||||
cl_kernel fragment_shader_kernel;
|
||||
cl_mem vertex_shader_matz;
|
||||
cl_mem vertex_shader_vertices;
|
||||
cl_mem new_vertices_mem;
|
||||
cl_mem fragment_shader_faces;
|
||||
cl_mem fragment_shader_screen_width;
|
||||
cl_mem fragment_shader_uv;
|
||||
cl_mem fragment_shader_map_size;
|
||||
cl_mem fragment_shader_norms;
|
||||
cl_mem fragment_shader_light_dir;
|
||||
cl_mem fragment_shader_diffuse_map;
|
||||
cl_int3* faces;
|
||||
|
||||
Model(const char *filename);
|
||||
~Model();
|
||||
int nverts();
|
||||
@@ -33,6 +51,11 @@ public:
|
||||
void rotate(Vec3f rot);
|
||||
void scale(Vec3f scl);
|
||||
void ApplyTransform();
|
||||
void init_kernels();
|
||||
void vertex(float* z);
|
||||
void fragment(float* light_dir);
|
||||
void render(Matrix* z, float* light_dir);
|
||||
void release_kernels();
|
||||
TGAColor diffuse(Vec2f uv);
|
||||
float specular(Vec2f uv);
|
||||
std::vector<int> face(int idx);
|
||||
|
||||
+17
-129
@@ -5,6 +5,7 @@
|
||||
#include "util_renderer.h"
|
||||
#include "CL/cl.h"
|
||||
#include "kernels.h"
|
||||
#include "improv_gfx.h"
|
||||
#include <ctime>
|
||||
|
||||
#pragma comment (lib, "x86_64/opencl.lib")
|
||||
@@ -21,23 +22,14 @@
|
||||
#define DEFAULT_CAMERA_ROT Vec3f(0, 0, 0)
|
||||
#define LIGHT_INTENSITY 1.5
|
||||
|
||||
const TGAColor white = TGAColor(255, 255, 255, 255);
|
||||
const TGAColor red = TGAColor(255, 0, 0, 255);
|
||||
const TGAColor green = TGAColor(0, 255, 0, 255);
|
||||
const TGAColor blue = TGAColor(0, 0, 255, 255);
|
||||
|
||||
Matrix ViewPort = Matrix::identity();
|
||||
Matrix ModelView = Matrix::identity();
|
||||
Matrix Projection = Matrix::identity();
|
||||
|
||||
Model* model = new Model("sakura.obj");
|
||||
Model* model, *model2;
|
||||
Camera camera;
|
||||
|
||||
Vec3f light_dir = Vec3f(1, 1, 1).normalize();
|
||||
|
||||
float* new_verts = (float*)malloc(4 * sizeof(float) * model->nverts());
|
||||
cl_int3* faces = (cl_int3*)malloc(3 * sizeof(cl_int3) * model->nfaces());
|
||||
|
||||
bool init_flag = false;
|
||||
|
||||
void init_camera() {
|
||||
@@ -54,55 +46,15 @@ void init_camera() {
|
||||
camera.ApplyChanges();
|
||||
}
|
||||
|
||||
void clear_zbuffer()
|
||||
{
|
||||
for (int i = 0; i < screen_width * screen_height; i++)
|
||||
z_buffer[i] = 0;
|
||||
}
|
||||
|
||||
|
||||
struct TextureShader : public IShader {
|
||||
mat<2, 3, float> varying_uv_coords;
|
||||
Matrix uniform_mit;
|
||||
Matrix uniform_m;
|
||||
Matrix z;
|
||||
|
||||
virtual Vec4f vertex(int iface, int nthvert) {
|
||||
//varying_uv_coords.set_col(nthvert, model->vert(iface, nthvert));
|
||||
Vec4f gl_Vertex = embed<4>(model->verts_[model->faces_[iface][nthvert][0]]);
|
||||
//return ViewPort * Projection * ModelView * gl_Vertex; // transform it to screen coordinates
|
||||
return z * gl_Vertex;
|
||||
//return Vec4f(0,0,0,0);
|
||||
}
|
||||
|
||||
virtual bool fragment(Vec3f bar, TGAColor &color) {
|
||||
Vec2f uv = varying_uv_coords * bar;
|
||||
Vec3f normal = Vec3f(uniform_mit * Vec4f(model->normal(uv))).normalize();
|
||||
Vec3f light = Vec3f(uniform_m * Vec4f(light_dir)).normalize();
|
||||
Vec3f reflection = (normal * (normal*light*2.f) - light).normalize();
|
||||
float spec_intensity = pow(std::fmax(reflection.z, 0.f), model->specular(uv));
|
||||
float diff_intensity = std::fmax(0.f, (normal*light));
|
||||
TGAColor c = model->diffuse(uv);
|
||||
color = c;
|
||||
for (int i = 0; i < 3; i++)
|
||||
color[i] = std::fmin(3 + c[i] * ((1 * diff_intensity + 0.1 * spec_intensity)), 255);// *LIGHT_INTENSITY;
|
||||
return false;
|
||||
}
|
||||
};
|
||||
std::vector<Model*> models_in_scene;
|
||||
|
||||
|
||||
void render()
|
||||
{
|
||||
if (!init_flag) {
|
||||
//light_dir = camera.GetForward().normalize() * -1;
|
||||
viewport(0, 0, screen_width, screen_height, FAR_CLIP_PLANE, NEAR_CLIP_PLANE);
|
||||
for (int i = 0; i < model->nfaces(); i++) {
|
||||
for (int j = 0; j < 3; j++) {
|
||||
faces[i * 3 + j].x = model->faces_[i][j][0];
|
||||
faces[i * 3 + j].y = model->faces_[i][j][1];
|
||||
faces[i * 3 + j].z = model->faces_[i][j][2];
|
||||
}
|
||||
}
|
||||
Setup();
|
||||
init_flag = true;
|
||||
}
|
||||
|
||||
@@ -111,84 +63,20 @@ void render()
|
||||
ModelView = camera.GetModelViewMatrix();
|
||||
}
|
||||
|
||||
{
|
||||
//model->rotate(Vec3f(0, 0, 90));
|
||||
//model->ApplyTransform();
|
||||
Matrix z = ViewPort * Projection * ModelView;
|
||||
|
||||
new_frame();
|
||||
for(Model* model : models_in_scene)
|
||||
model->render(&z, (float*)&light_dir);
|
||||
end_frame();
|
||||
|
||||
}
|
||||
|
||||
// float* normal_test = *(float**)((Vec3f*)&model->norms_);
|
||||
//
|
||||
// Vec3f smth = Vec3f(
|
||||
// normal_test[3 * faces[0 * 9 + 0 * 3 + 2] + 0],
|
||||
// normal_test[3 * faces[0 * 9 + 0 * 3 + 2] + 1],
|
||||
// normal_test[3 * faces[0 * 9 + 0 * 3 + 2] + 2]
|
||||
// ).normalize();
|
||||
// printf("Real: %f, %f, %f\n", model->normal(0, 0)[0], model->normal(0, 0)[1], model->normal(0, 0)[2]);
|
||||
// printf("Please: %f, %f, %f\n", smth[0], smth[1], smth[2]);
|
||||
|
||||
//TextureShader shader;
|
||||
//shader.uniform_m = (Projection);
|
||||
//shader.uniform_mit = (Projection).invert_transpose();
|
||||
|
||||
Matrix z = ViewPort * Projection * ModelView * model->Transform;
|
||||
|
||||
Matrix uniform_m = (Projection);
|
||||
Matrix uniform_mit = (Projection).invert_transpose();
|
||||
|
||||
// Vertex Shader: Should be called per model
|
||||
vertex_shader((float*)&z, *(float**)((Vec3f*) &model->verts_), model->nverts(), new_verts);
|
||||
|
||||
// Things needed in the GPU fragment shader
|
||||
// [x] model->faces_
|
||||
// [x] model->nfaces()
|
||||
// [x] new_verts
|
||||
// [x] model->nverts()
|
||||
// [x] screen_width
|
||||
// [x] screen_height
|
||||
// [x] z_buffer
|
||||
// [x] uniform_m
|
||||
// [x] uniform_mit
|
||||
// [x] light direction
|
||||
// [ ] diffuse map
|
||||
// [ ] normal map
|
||||
// [ ] specular map
|
||||
// [ ] pixel_data
|
||||
|
||||
int map_size[] = {model->diffusemap_.get_width(), model->diffusemap_.get_height()};
|
||||
|
||||
fragment_shader(
|
||||
faces,
|
||||
model->nfaces(),
|
||||
*(float**)((Vec2f*)&model->uv_),
|
||||
sizeof(float) * model->uv_.size() * 2,
|
||||
(float*) &uniform_m,
|
||||
(float*) &uniform_mit,
|
||||
(float*) &light_dir,
|
||||
model->diffusemap_.data,
|
||||
*(float**)((Vec3f*)&model->norms_),
|
||||
sizeof(float) * model->norms_.size() * 3,
|
||||
model->specularmap_.data,
|
||||
map_size
|
||||
);
|
||||
|
||||
// Here starts the CPU fragment shader
|
||||
//printf("Here starts the loop\n");
|
||||
//#pragma omp parallel for
|
||||
//for (int i = 0; i < model->nfaces(); i++) {
|
||||
// Vec4f screen_coords[3];
|
||||
// bool out = true;
|
||||
// #pragma omp parallel for
|
||||
// for (int j = 0; j < 3; j++) {
|
||||
// screen_coords[j] = ((Vec4f*)new_verts)[model->faces_[i][j][0]];
|
||||
// Vec3f screen3(screen_coords[j]);
|
||||
|
||||
// shader.varying_uv_coords.set_col(j, model->uv(i, j));
|
||||
// if (screen3.x > 0 && screen3.x < screen_width && screen3.y > 0 && screen3.y < screen_height) out = false;
|
||||
// }
|
||||
// if(!out)
|
||||
// triangle(screen_coords, shader);
|
||||
//}
|
||||
|
||||
//printf("that's it\n");
|
||||
void AddModel(Model* model) {
|
||||
models_in_scene.push_back(model);
|
||||
}
|
||||
|
||||
void free_renderer() {
|
||||
for(Model* model : models_in_scene)
|
||||
delete model;
|
||||
}
|
||||
|
||||
@@ -8,7 +8,9 @@ extern float* z_buffer;
|
||||
extern Camera camera;
|
||||
extern float TIME;
|
||||
|
||||
|
||||
void init_camera();
|
||||
void render();
|
||||
void free_renderer();
|
||||
int color_to_int(TGAColor col);
|
||||
#endif
|
||||
Binary file not shown.
Reference in New Issue
Block a user