void CVK::Node::render()
{
glm::mat4 modelMatrix = glm::mat4(1.0f);
CVK::Node* parentNode = m_parent;
while(parentNode != 0)
{
modelMatrix = *parentNode->getModelMatrix() * modelMatrix;
parentNode = parentNode->getParent();
}
render( modelMatrix);
}
void Demo::renderPartGPU(){
CVK::Node* partGPUNode = new CVK::Node("partGPU");
partGPUNode->setGeometry(partGeometry);
partGPUNode->setMaterial(partMaterial);
for (int j = 0; j < world->getAllPartNum(); j++){
glm::vec3 temP = cuda->h_uVOpPos[j]; //h_uVOpPos
//cout << temP.y << endl;
partGPUNode->setModelMatrix(glm::translate(glm::mat4(1.0f), temP));
partGPUNode->render();
}
}
void CVK::Node::load(std::string path)
{
// load a scene with ASSIMP
Assimp::Importer importer;
const aiScene* scene = importer.ReadFile(path, aiProcess_GenSmoothNormals | aiProcess_Triangulate);
if(scene)
printf("SUCCESS: Loaded Model from Path: \"%s\"\n", path.c_str());
else
{
printf("ERROR: Loading failed from Path: \"%s\"\n", path.c_str());
return;
}
std::vector<CVK::Material*> materials;
// load all materials in this file
for(unsigned int i=0; i < scene->mNumMaterials; i++)
{
aiMaterial* mat = scene->mMaterials[i];
aiColor3D diffColor (0.f,0.f,0.f);
mat->Get(AI_MATKEY_COLOR_DIFFUSE, diffColor);
aiColor3D specColor (0.f,0.f,0.f);
mat->Get(AI_MATKEY_COLOR_SPECULAR, specColor);
float shininess = 0.0f;
mat->Get(AI_MATKEY_SHININESS, shininess);
glm::vec3 diffuseColor(diffColor.r, diffColor.g, diffColor.b);
glm::vec3 specularColor(specColor.r, specColor.g, specColor.b);
aiString fileName; // filename
mat->Get(AI_MATKEY_TEXTURE(aiTextureType_DIFFUSE, 0), fileName);
std::string s = path.substr(0, path.rfind("/")) + "/";
s += fileName.data;
//materials.push_back(new CVK::Material(glm::vec3(0.0,1.0,0.0), glm::vec3(0.0,0.0,1.0), 10));
if (fileName.length>0)
materials.push_back(new CVK::Material( const_cast<char*> ( s.c_str() ), 1.f, 1.f, specularColor, shininess));
//should set kd and ks!!
else
materials.push_back(new CVK::Material(diffuseColor, specularColor, shininess));
}
// load all meshes in this file
for(unsigned int i=0; i < scene->mNumMeshes; i++)
{
aiMesh* mesh = scene->mMeshes[i];
CVK::Geometry* geometry = new CVK::Geometry();
// load geometry information of the current mesh
for(unsigned int vCount = 0; vCount < mesh->mNumVertices; vCount++)
{
// vertices
aiVector3D v = mesh->mVertices[vCount];
geometry->getVertices()->push_back( glm::vec4(v.x, v.y, v.z, 1.0f));
// normals
if (mesh->HasNormals())
{
v = mesh->mNormals[vCount];
geometry->getNormals()->push_back( glm::vec3(v.x, v.y, v.z));
}
// texture coordinates
if (mesh->HasTextureCoords(0))
{
v = mesh->mTextureCoords[0][vCount];
geometry->getUVs()->push_back( glm::vec2(v.x, v.y));
}
}
for(unsigned int fCount = 0; fCount < mesh->mNumFaces; fCount++)
{
aiFace f = mesh->mFaces[fCount];
// index numbers
for(unsigned int iCount = 0; iCount < f.mNumIndices; iCount++)
{
geometry->getIndex()->push_back(f.mIndices[iCount]);
}
}
geometry->createBuffers();
// new child node with the geometry and a connection to material
CVK::Node* child = new CVK::Node();
child->setGeometry(geometry);
child->setMaterial(materials[mesh->mMaterialIndex]);
addChild(child);
}
}
int main()
{
// init GLFW and GLEW
glfwInit();
CVK::useOpenGL33CoreProfile();
GLFWwindow* window = glfwCreateWindow(WIDTH, HEIGHT, "Normal Mapping", 0, 0);
glfwSetWindowPos(window, 100, 50);
glfwMakeContextCurrent(window);
glewInit();
glfwSetWindowSizeCallback(window, resizeCallback);
glfwSetCharCallback(window, charCallback);
// setup camera
camera.setCenter(glm::vec3( 0.0f, 0.0f, 0.0f));
camera.setRadius(5);
camera.setNearFar(1.0f, 10.0f);
CVK::State::getInstance()->setCamera(&camera);
// setup light
CVK::Light plight(glm::vec4(0.0f, 1.0, 10.0f, 1.0f), grey, glm::vec3( 0, 0, 0), 1.0f, 0.0f);
CVK::State::getInstance()->addLight(&plight);
// setup scene
CVK::Node* node = new CVK::Node("Cube");
// create and set teapot geometrie
CVK::Cube* cube = new CVK::Cube();
node->setGeometry(cube);
// define material with diffuse color and normal texture
CVK::Material matTex((char*)RESOURCES_PATH "/normalmapping/diffusemap.png", glm::vec3( 0.5f, 0.5f, 0.5f), glm::vec3( 0.3f, 0.3f, 0.3f), 120.0f);
matTex.setTexture(CVK::NORMAL_TEXTURE, (char*)RESOURCES_PATH "/normalmapping/normalmap.png");
CVK::Material matRed(glm::vec3(1.0,0.0,0.0), glm::vec3(1.0,1.0,1.0), 120.0f);
useColorTexture = false;
// phong shader
const char *shadernames0[2] = {SHADERS_PATH "/NormalMapping/Phong.vert", SHADERS_PATH "/NormalMapping/Phong.frag"};
CVK::ShaderPhong phongShader = CVK::ShaderPhong( VERTEX_SHADER_BIT|FRAGMENT_SHADER_BIT, shadernames0);
//define Scene uniforms (ambient and fog)
CVK::State::getInstance()->updateSceneSettings(glm::vec3(0.3,0.3,0.3), 0, glm::vec3(1.0,1.0,1.0), 1, 10, 1);
// normal mapping shader
const char *shadernames1[2] = {SHADERS_PATH "/NormalMapping/NormalMapping.vert", SHADERS_PATH "/NormalMapping/NormalMapping.frag"};
ShaderNormalMapping normalMappingShader = ShaderNormalMapping( VERTEX_SHADER_BIT|FRAGMENT_SHADER_BIT, shadernames1);
//use normal mapping shader
useNormalMappingShader = false;
// print infos
std::cout << "Key s: " << "swap shader" << std::endl;
std::cout << "Key m: " << "swap material" << std::endl;
glClearColor(1.0, 1.0, 1.0, 0.0);
glEnable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
while( !glfwWindowShouldClose(window))
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// set active shader
if(useNormalMappingShader)
CVK::State::getInstance()->setShader(&normalMappingShader);
else
CVK::State::getInstance()->setShader(&phongShader);
// set material
if(useColorTexture)
node->setMaterial(&matTex);
else
node->setMaterial(&matRed);
// update camera
camera.update(window);
// update view, projection matrix, light uniforms
CVK::State::getInstance()->getShader()->update();
// render scene
node->render();
glfwSwapBuffers( window);
glfwPollEvents();
}
glfwDestroyWindow(window);
glfwTerminate();
// clean up
delete cube;
delete node;
return 0;
}
void Demo::run(){
// Init GLFW and GLEW
glfwInit();
CVK::useOpenGL33CoreProfile();
GLFWwindow* window = glfwCreateWindow(windowWidth, windowHeight, "RBPE-Demo", 0, 0);
glfwSetWindowPos( window, 100, 50);
glfwMakeContextCurrent(window);
glewInit();
float pr = world->getPartRadius();
float temp = pr * 3;
cubeGeometry = new CVK::Cube(temp);
partGeometry = new CVK::Sphere(pr);
//material setzten, geht aber nur bei node, also in VO
cubeMaterial = new CVK::Material((char*)RESOURCES_PATH "/cv_logo.bmp", black, grey, 100.0f);
//cubeMaterial = new CVK::Material(red, white, 100.0f); //!for transparency!
//cubeMaterial->setAlpha(0.5); //!for transparency!
partMaterial = new CVK::Material(blue, white, 100.0f);
//plane für boden
plane = new CVK::Plane();
CVK::Node* planeNode = new CVK::Node("Plane");
CVK::Material mat_brick((char*)RESOURCES_PATH "/brick.bmp", black, darkgrey, 100.0f);
planeNode->setGeometry(plane);
planeNode->setMaterial(&mat_brick);
planeNode->setModelMatrix(glm::rotate(glm::scale(glm::translate(glm::mat4(1.0f), glm::vec3(0, 0, 0)), glm::vec3(10)), -90.0f, glm::vec3(1, 0, 0))); //0.4=partdurchmesser
demo->sceneRoot->addChild(planeNode);
demo->partRoot->addChild(planeNode);
camera->setCenter( glm::vec3( 0.0f, 0.0f, 0.0f));
camera->setRadius( 30);
camera->setNearFar( 1.0f, 100.0f);
glfwSetWindowSizeCallback( window, resizeCallback);
initScene();
//load, compile and link Shader
const char *shadernames[2] = {SHADERS_PATH "/Phong.vert", SHADERS_PATH "/Phong.frag"};
CVK::ShaderPhong phongShader( VERTEX_SHADER_BIT|FRAGMENT_SHADER_BIT, shadernames);
//OpenGL parameters
glClearColor(1.0, 1.0, 1.0, 0.0);
glEnable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
CVK::State::getInstance()->setCamera( camera);
//define light
CVK::Light plight( glm::vec4( -1, 1, 1, 1), grey, glm::vec3( 0, 0, 0), 1.0f, 0.0f);
CVK::State::getInstance()->addLight( &plight);
//define Scene uniforms (ambient and fog)
CVK::State::getInstance()->updateSceneSettings( darkgrey, 0, white, 1, 10, 1);
CVK::State::getInstance()->setShader(&phongShader);
//init cuda
if(isGPU == true){
cuda->initCUDA();
}
while( !glfwWindowShouldClose(window)){
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//time->startFrame();
stepSimulation(duration);
//Update Camera
camera->update(window);
//update shader and render
phongShader.update();
if (renderPart == false){
//render würfel
updateVOs();
sceneRoot->render();
}
if (renderPart == true){
//render partikel
if (isGPU == true){
updateVOs();
planeNode->render();
renderPartGPU();
}
else{
partRoot->render();
}
}
glfwSwapBuffers(window);
glfwPollEvents();
//time->endFrame();
int fps = time->updateFPS();
char title[64];
sprintf_s(title, "Rigid Body | %d fps", fps);
glfwSetWindowTitle(window, title);
}
cuda->~Cuda(); //free cuda stuff
glfwDestroyWindow( window);
glfwTerminate();
}