Joint & Model

OpenWindow/ColladaModel.cpp

@@ -0,0 +1,210 @@
+#include <iostream>
+#include <fstream>
+#include <sstream>
+#include "ColladaModel.h"
+
+#define PI 3.14159265358979323846
+#define DEG2RAD PI/180
+
+ColladaModel::ColladaModel(const char* filename) : faces_(), vertices_(), normals_(), rootjoint(rootindex,roottransform)
+{
+	Transform = Matrix::identity();
+	Rotation = Matrix::identity();
+	Scale = Matrix::identity();
+	Translation = Matrix::identity();
+
+	tinyxml2::XMLDocument doc;
+	doc.LoadFile(filename);
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	////////////////////////////////////////////////faces//////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	face_count = 0;
+	tinyxml2::XMLElement* xml_face = doc.FirstChildElement("COLLADA")->FirstChildElement("library_geometries")->FirstChildElement("geometry")->FirstChildElement("mesh")->FirstChildElement("triangles");
+	xml_face->QueryIntAttribute("count", &face_count); //get count
+	std::stringstream str_triangle(xml_face->FirstChildElement("p")->GetText()); //get values as a string
+
+	for (int i = 0; i < face_count; i++)
+	{
+		faces_.push_back(std::vector<Vec3i>());
+		for (int j = 0; j < 3; j++)
+		{
+			Vec3i temp;
+			str_triangle >> temp.x;
+			str_triangle >> temp.y;
+			str_triangle >> temp.z;
+			faces_[i].push_back(temp);
+		}
+	}
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	////////////////////////////////////////////////vertex/////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	vertex_count = 0;
+	tinyxml2::XMLElement* xml_vertex = doc.FirstChildElement("COLLADA")->FirstChildElement("library_geometries")->FirstChildElement("geometry")->FirstChildElement("mesh")->FirstChildElement("source")->FirstChildElement("float_array");
+	xml_vertex->QueryIntAttribute("count", &vertex_count);
+	std::stringstream str_vertex(xml_vertex->GetText());
+
+	for (int i = 0; i < vertex_count / 3; i++)
+	{
+		Vec3f temp;
+		str_vertex >> temp.x;
+		str_vertex >> temp.y;
+		str_vertex >> temp.z;
+		vertices_.push_back(temp);
+	}
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	/////////////////////////////////////////////normal////////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	normal_count = 0;
+	tinyxml2::XMLElement* xml_normal = doc.FirstChildElement("COLLADA")->FirstChildElement("library_geometries")->FirstChildElement("geometry")->FirstChildElement("mesh")->FirstChildElement("source")->NextSiblingElement()->FirstChildElement("float_array");
+	xml_normal->QueryIntAttribute("count", &normal_count);
+	std::stringstream str_normal(xml_normal->GetText());
+
+	for (int i = 0; i < normal_count / 3; i++)
+	{
+		Vec3f temp;
+		str_normal >> temp.x;
+		str_normal >> temp.y;
+		str_normal >> temp.z;
+		normals_.push_back(temp);
+	}
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	texcoord_count = 0;
+	tinyxml2::XMLElement* xml_texture = doc.FirstChildElement("COLLADA")->FirstChildElement("library_geometries")->FirstChildElement("geometry")->FirstChildElement("mesh")->FirstChildElement("source")->NextSiblingElement()->NextSiblingElement()->FirstChildElement("float_array");
+	xml_texture->QueryIntAttribute("count", &texcoord_count);
+	std::stringstream str_texcoord(xml_texture->GetText());
+
+	for (int i = 0; i < texcoord_count / 2; i++)
+	{
+		Vec2f temp;
+		str_texcoord >> temp.x;
+		str_texcoord >> temp.y;
+		textureco_.push_back(temp);
+	}
+
+	load_texture(filename, "_diffuse.tga", diffusemap_);
+	load_texture(filename, "_nm_tangent.tga", normalmap_);
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+	///////////////////////////////////////////////////////////////////////////////////////////////////////
+}
+ColladaModel::~ColladaModel() {
+}
+
+void ColladaModel::ApplyTransform() {
+	Transform = Translation * Scale * Rotation;
+}
+void ColladaModel::translate(Vec3f tr) {
+	Translation[0][3] += tr.x;
+	Translation[1][3] += tr.y;
+	Translation[2][3] += tr.z;
+}
+void ColladaModel::rotate(Vec3f rot) {
+	rot = rot * DEG2RAD;
+
+	Rotation[0][0] = cosf(rot.y) * cosf(rot.z);
+	Rotation[0][1] = -cosf(rot.y) * sinf(rot.z);
+	Rotation[0][2] = sinf(rot.y);
+	Rotation[1][0] = sinf(rot.x) * sinf(rot.y) * cosf(rot.z) + cosf(rot.x) * sinf(rot.z);
+	Rotation[1][1] = -sinf(rot.x) * sinf(rot.y) * sinf(rot.z) + cosf(rot.x) * cosf(rot.z);
+	Rotation[1][2] = -sinf(rot.x) * cosf(rot.y);
+	Rotation[2][0] = -cosf(rot.x) * sinf(rot.y) * cosf(rot.z) + sinf(rot.x) * sinf(rot.z);
+	Rotation[2][1] = cosf(rot.x) * sinf(rot.y) * sinf(rot.z) + sinf(rot.x) * cosf(rot.z);
+	Rotation[2][2] = cosf(rot.x) * cosf(rot.y);
+}
+void ColladaModel::scale(Vec3f scl) {
+	Scale[0][0] = scl.x;
+	Scale[1][1] = scl.y;
+	Scale[2][2] = scl.z;
+}
+
+int ColladaModel::nfaces() {
+	return face_count;
+}
+int ColladaModel::nvertices() {
+	return vertex_count;
+}
+
+std::vector<int> ColladaModel::face(int idx) {
+	std::vector<int> face;
+	for (int i = 0; i < (int)faces_[idx].size(); i++) face.push_back(faces_[idx][i][0]);
+	return face;
+}
+Vec3f ColladaModel::vertix(int i) {
+	return vertices_[i];
+}
+Vec3f ColladaModel::vertix(int iface, int nthvert) {
+	return vertices_[faces_[iface][nthvert][0]];
+}
+
+void ColladaModel::load_texture(std::string filename, const char* suffix, TGAImage& img) {
+	std::string texfile(filename);
+	size_t dot = texfile.find_last_of(".");
+	if (dot != std::string::npos) {
+		texfile = texfile.substr(0, dot) + std::string(suffix);
+		std::cerr << "texture file " << texfile << " loading " << (img.read_tga_file(texfile.c_str()) ? "ok" : "failed") << std::endl;
+		img.flip_vertically();
+	}
+}
+
+TGAColor ColladaModel::diffuse(Vec2f uvf) {
+	Vec2i uv(uvf[0] * diffusemap_.get_width(), uvf[1] * diffusemap_.get_height());
+	return diffusemap_.get(uv[0], uv[1]);
+}
+
+Vec3f ColladaModel::normal(Vec2f uvf) {
+	Vec2i uv(uvf[0] * normalmap_.get_width(), uvf[1] * normalmap_.get_height());
+	TGAColor c = normalmap_.get(uv[0], uv[1]);
+	Vec3f res;
+	for (int i = 0; i < 3; i++)
+		res[2 - i] = (float)c[i] / 255.f * 2.f - 1.f;
+	return res;
+}
+
+Vec2f ColladaModel::uv(int iface, int nthvert) {
+	return textureco_[faces_[iface][nthvert][2]];
+}
+
+float ColladaModel::specular(Vec2f uvf) {
+	Vec2i uv(uvf[0] * specularmap_.get_width(), uvf[1] * specularmap_.get_height());
+	return specularmap_.get(uv[0], uv[1])[0] / 1.f;
+}
+
+Vec3f ColladaModel::normal(int iface, int nthvert) {
+	int idx = faces_[iface][nthvert][1];
+	return normals_[idx].normalize();
+}
+
+Joint ColladaModel::getrootjoint()
+{
+	return rootjoint;
+}
+
+void ColladaModel::doanimation(Animator animation)
+{
+	animator.doanimation(animation);
+}
+
+void ColladaModel::updateanimator()
+{
+	animator.update();
+}
+
+std::vector<Matrix> ColladaModel::getjointtransforms()
+{
+	std::vector<Matrix> jointMat(joint_count);
+	addjointtoarray(rootjoint, jointMat);
+	return jointMat;
+}
+
+void ColladaModel::addjointtoarray(Joint parent, std::vector<Matrix> jointMat)
+{
+	jointMat[parent.index] = parent.getTransform();
+
+	for (auto& child : parent.children)
+	{
+		addjointtoarray(child, jointMat);
+	}
+}
+

OpenWindow/ColladaModel.h

@@ -0,0 +1,86 @@
+#ifndef __MODEL_s__
+#define __MODEL_s__
+#pragma once
+
+#include "ColladaModel.h"
+#include "tinyxml2.h"
+#include "geometry.h"
+#include "tgaimage.h"
+#include "joint.h"
+#include "animator.h"
+
+#include <cerrno>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+#include <fstream>
+#include <iostream>
+#include <string>
+#include <sstream>
+#include <vector>
+
+class ColladaModel {
+private:
+	int face_count;
+	int vertex_count;
+	int normal_count;
+	int texcoord_count;
+	int joint_count;
+
+	Joint rootjoint;
+	int rootindex=0;
+	Matrix roottransform;
+
+	Animator animator;
+
+	std::vector<std::vector<Vec3i> > faces_; //vertex/normal/uv
+	std::vector<Vec3f> vertices_;
+	std::vector<Vec3f> normals_;
+	std::vector<Vec2f> textureco_;
+
+	TGAImage diffusemap_;
+	TGAImage normalmap_;
+	TGAImage specularmap_;
+
+	void load_texture(std::string filename, const char* suffix, TGAImage& img);
+public:
+	ColladaModel(const char* filename);
+	~ColladaModel();
+
+	int nfaces();
+	int nvertices();
+
+	Vec3f vertix(int iface, int nthvert);
+	Vec3f vertix(int i);
+
+	Vec3f normal(int iface, int nthvert);
+	Vec3f normal(Vec2f uv);
+
+	Vec2f uv(int iface, int nthvert);
+
+	Matrix Transform;
+	Matrix Rotation;
+	Matrix Scale;
+	Matrix Translation;
+
+	void translate(Vec3f tr);
+	void rotate(Vec3f rot);
+	void scale(Vec3f scl);
+	void ApplyTransform();
+
+	TGAColor diffuse(Vec2f uv);
+	float specular(Vec2f uv);
+	std::vector<int> face(int idx);
+
+	/////////////////////////////
+	Joint getrootjoint();
+
+	void doanimation(Animator animation);
+
+	void updateanimator();
+
+	std::vector<Matrix> getjointtransforms();
+
+	void addjointtoarray(Joint parent, std::vector<Matrix>);
+};
+#endif

OpenWindow/Joint.cpp

@@ -0,0 +1,35 @@
+#include "Joint.h"
+
+Joint::Joint(int index, Matrix transform) {
+	Joint::index = index;
+	_transform = transform;
+}
+
+Joint::~Joint() {
+}
+
+void Joint::addChild(Joint child) {
+	children.push_back(child);
+}
+
+Matrix Joint::getTransform() {
+	return _transform;
+}
+
+void Joint::setTransform(Matrix transform) {
+	_transform = transform;
+}
+
+Matrix Joint::getInverseBindTransform() {
+	return _inverseBindtransform;
+}
+
+void Joint::calculateInverseBindTransform(Matrix parentBindTransform) {
+	Matrix bindTransform = parentBindTransform * _localBindTransform;
+	_inverseBindtransform = bindTransform.invert();
+
+	for (auto &child : children)
+	{
+		child.calculateInverseBindTransform(bindTransform);
+	}
+}

OpenWindow/Joint.h

@@ -0,0 +1,26 @@
+#pragma once
+#include <vector>
+#include "geometry.h"
+class Joint
+{
+private:
+	Matrix _transform;	//model space
+	Matrix _localBindTransform;
+	Matrix _inverseBindtransform;
+
+public:
+	int index;
+	std::vector<Joint> children;
+
+	Joint(int index,Matrix transform);
+	~Joint();
+
+	void addChild(Joint child);
+
+	Matrix getTransform();
+	void setTransform(Matrix transform);
+
+	Matrix getInverseBindTransform();
+	void calculateInverseBindTransform(Matrix parentBindTransform);
+};
+

OpenWindow/OpenWindow.vcxproj

@@ -22,32 +22,32 @@
     <VCProjectVersion>15.0</VCProjectVersion>
     <ProjectGuid>{42971E68-F861-4D45-9DA6-F5E163705584}</ProjectGuid>
     <RootNamespace>OpenWindow</RootNamespace>
-    <WindowsTargetPlatformVersion>10.0.18362.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
@@ -115,21 +115,29 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClCompile Include="animator.cpp" />
     <ClCompile Include="camera.cpp" />
+    <ClCompile Include="colladamodel.cpp" />
     <ClCompile Include="geometry.cpp" />
+    <ClCompile Include="joint.cpp" />
     <ClCompile Include="main.cpp" />
     <ClCompile Include="model.cpp" />
     <ClCompile Include="renderer.cpp" />
     <ClCompile Include="tgaimage.cpp" />
+    <ClCompile Include="tinyxml2.cpp" />
     <ClCompile Include="util_renderer.cpp" />
     <ClCompile Include="util_window.cpp" />
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="animator.h" />
+    <ClInclude Include="colladamodel.h" />
     <ClInclude Include="geometry.h" />
     <ClInclude Include="camera.h" />
+    <ClInclude Include="joint.h" />
     <ClInclude Include="model.h" />
     <ClInclude Include="renderer.h" />
     <ClInclude Include="tgaimage.h" />
+    <ClInclude Include="tinyxml2.h" />
     <ClInclude Include="util_renderer.h" />
     <ClInclude Include="util_window.h" />
   </ItemGroup>

OpenWindow/OpenWindow.vcxproj.filters

@@ -39,6 +39,18 @@
     <ClCompile Include="util_renderer.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="colladamodel.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="tinyxml2.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="joint.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="animator.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="util_window.h">
@@ -62,5 +74,17 @@
     <ClInclude Include="util_renderer.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="colladamodel.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="tinyxml2.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="joint.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="animator.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>

OpenWindow/animator.cpp

@@ -0,0 +1 @@
+#include "animator.h"

OpenWindow/animator.h

@@ -0,0 +1,5 @@
+#pragma once
+class Animator
+{
+};
+