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placeObjectOnPlanet (not complete)

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This commit is contained in:
Dominik Piasecki 2024-01-15 00:06:05 +01:00
parent f52d3aa18d
commit 6718cd7e5e
2 changed files with 46 additions and 11 deletions
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153
PlanetCreator/cw 6/src/Render_Utils.cpp
View File

@ -55,83 +55,6 @@ void Core::RenderContext::initFromAssimpMesh2(aiMesh* mesh) {
glBindVertexArray(vertexArray); glBindVertexArray(vertexArray);
glGenBuffers(1, &vertexIndexBuffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vertexIndexBuffer);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, vertexElementBufferSize, &indices[0], GL_STATIC_DRAW);
glGenBuffers(1, &vertexBuffer);
glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer);
//std::cout << vertexBuffer;
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
glEnableVertexAttribArray(2);
glEnableVertexAttribArray(3);
glEnableVertexAttribArray(4);
glBufferData(GL_ARRAY_BUFFER, vertexDataBufferSize + vertexNormalBufferSize + vertexTexBufferSize + vertexTangentBufferSize + vertexBiTangentBufferSize, NULL, GL_STATIC_DRAW);
glBufferSubData(GL_ARRAY_BUFFER, 0, vertexDataBufferSize, mesh->mVertices);
glBufferSubData(GL_ARRAY_BUFFER, vertexDataBufferSize, vertexNormalBufferSize, mesh->mNormals);
glBufferSubData(GL_ARRAY_BUFFER, vertexDataBufferSize + vertexNormalBufferSize, vertexTexBufferSize, &textureCoord[0]);
glBufferSubData(GL_ARRAY_BUFFER, vertexDataBufferSize + vertexNormalBufferSize + vertexTexBufferSize, vertexTangentBufferSize, mesh->mTangents);
glBufferSubData(GL_ARRAY_BUFFER, vertexDataBufferSize + vertexNormalBufferSize + vertexTexBufferSize + vertexTangentBufferSize, vertexBiTangentBufferSize, mesh->mBitangents);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, (void*)(0));
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0, (void*)(vertexDataBufferSize));
glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 0, (void*)(vertexNormalBufferSize + vertexDataBufferSize));
glVertexAttribPointer(3, 3, GL_FLOAT, GL_FALSE, 0, (void*)(vertexDataBufferSize + vertexNormalBufferSize + vertexTexBufferSize));
glVertexAttribPointer(4, 3, GL_FLOAT, GL_FALSE, 0, (void*)(vertexDataBufferSize + vertexNormalBufferSize + vertexTexBufferSize + vertexTangentBufferSize));
}
void Core::RenderContext::initFromAssimpMesh(aiMesh* mesh) {
vertexArray = 0;
vertexBuffer = 0;
vertexIndexBuffer = 0;
std::vector<float> textureCoord;
std::vector<unsigned int> indices;
//tex coord must be converted to 2d vecs
for (unsigned int i = 0; i < mesh->mNumVertices; i++)
{
if (mesh->mTextureCoords[0] != nullptr) {
textureCoord.push_back(mesh->mTextureCoords[0][i].x);
textureCoord.push_back(mesh->mTextureCoords[0][i].y);
}
else {
std::cout << "did else ok?"<<std::endl;
textureCoord.push_back(0.0f);
textureCoord.push_back(0.0f);
}
}
if (mesh->mTextureCoords[0] == nullptr) {
std::cout << "no uv coords\n";
}
for (unsigned int i = 0; i < mesh->mNumFaces; i++)
{
aiFace face = mesh->mFaces[i];
// retrieve all indices of the face and store them in the indices vector
for (unsigned int j = 0; j < face.mNumIndices; j++)
indices.push_back(face.mIndices[j]);
}
unsigned int vertexDataBufferSize = sizeof(float) * mesh->mNumVertices * 3;
unsigned int vertexNormalBufferSize = sizeof(float) * mesh->mNumVertices * 3;
unsigned int vertexTexBufferSize = sizeof(float) * mesh->mNumVertices * 2;
unsigned int vertexTangentBufferSize = sizeof(float) * mesh->mNumVertices * 3;
unsigned int vertexBiTangentBufferSize = sizeof(float) * mesh->mNumVertices * 3;
unsigned int vertexElementBufferSize = sizeof(unsigned int) * indices.size();
size = indices.size();
glGenVertexArrays(1, &vertexArray);
glBindVertexArray(vertexArray);
glGenBuffers(1, &vertexIndexBuffer); glGenBuffers(1, &vertexIndexBuffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vertexIndexBuffer); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vertexIndexBuffer);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, vertexElementBufferSize, &indices[0], GL_STATIC_DRAW); glBufferData(GL_ELEMENT_ARRAY_BUFFER, vertexElementBufferSize, &indices[0], GL_STATIC_DRAW);
@ -165,6 +88,82 @@ void Core::RenderContext::initFromAssimpMesh(aiMesh* mesh) {
} }
void Core::RenderContext::initFromAssimpMesh(aiMesh* mesh) {
vertexArray = 0;
vertexBuffer = 0;
vertexIndexBuffer = 0;
std::vector<float> textureCoord;
std::vector<unsigned int> indices;
//tex coord must be converted to 2d vecs
for (unsigned int i = 0; i < mesh->mNumVertices; i++)
{
if (mesh->mTextureCoords[0] != nullptr) {
textureCoord.push_back(mesh->mTextureCoords[0][i].x);
textureCoord.push_back(mesh->mTextureCoords[0][i].y);
}
else {
std::cout << "did else ok?"<<std::endl;
textureCoord.push_back(0.0f);
textureCoord.push_back(0.0f);
}
}
if (mesh->mTextureCoords[0] == nullptr) {
std::cout << "no uv coords\n";
}
for (unsigned int i = 0; i < mesh->mNumFaces; i++)
{
aiFace face = mesh->mFaces[i];
// retrieve all indices of the face and store them in the indices vector
for (unsigned int j = 0; j < face.mNumIndices; j++)
indices.push_back(face.mIndices[j]);
}
unsigned int vertexDataBufferSize = sizeof(float) * mesh->mNumVertices * 3;
unsigned int vertexNormalBufferSize = sizeof(float) * mesh->mNumVertices * 3;
unsigned int vertexTexBufferSize = sizeof(float) * mesh->mNumVertices * 2;
unsigned int vertexTangentBufferSize = sizeof(float) * mesh->mNumVertices * 3;
unsigned int vertexBiTangentBufferSize = sizeof(float) * mesh->mNumVertices * 3;
unsigned int vertexElementBufferSize = sizeof(unsigned int) * indices.size();
size = indices.size();
glGenVertexArrays(1, &vertexArray);
glBindVertexArray(vertexArray);
glGenBuffers(1, &vertexIndexBuffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vertexIndexBuffer);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, vertexElementBufferSize, &indices[0], GL_STATIC_DRAW);
glGenBuffers(1, &vertexBuffer);
glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
glEnableVertexAttribArray(2);
glEnableVertexAttribArray(3);
glEnableVertexAttribArray(4);
glBufferData(GL_ARRAY_BUFFER, vertexDataBufferSize + vertexNormalBufferSize + vertexTexBufferSize + vertexTangentBufferSize + vertexBiTangentBufferSize, NULL, GL_STATIC_DRAW);
glBufferSubData(GL_ARRAY_BUFFER, 0, vertexDataBufferSize, mesh->mVertices);
glBufferSubData(GL_ARRAY_BUFFER, vertexDataBufferSize, vertexNormalBufferSize, mesh->mNormals);
glBufferSubData(GL_ARRAY_BUFFER, vertexDataBufferSize + vertexNormalBufferSize, vertexTexBufferSize, &textureCoord[0]);
glBufferSubData(GL_ARRAY_BUFFER, vertexDataBufferSize + vertexNormalBufferSize + vertexTexBufferSize, vertexTangentBufferSize, mesh->mTangents);
glBufferSubData(GL_ARRAY_BUFFER, vertexDataBufferSize + vertexNormalBufferSize + vertexTexBufferSize + vertexTangentBufferSize, vertexBiTangentBufferSize, mesh->mBitangents);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, (void*)(0));
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0, (void*)(vertexDataBufferSize));
glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 0, (void*)(vertexNormalBufferSize + vertexDataBufferSize));
glVertexAttribPointer(3, 3, GL_FLOAT, GL_FALSE, 0, (void*)(vertexDataBufferSize + vertexNormalBufferSize + vertexTexBufferSize));
glVertexAttribPointer(4, 3, GL_FLOAT, GL_FALSE, 0, (void*)(vertexDataBufferSize + vertexNormalBufferSize + vertexTexBufferSize + vertexTangentBufferSize));
}
void Core::DrawVertexArray(const float * vertexArray, int numVertices, int elementSize ) void Core::DrawVertexArray(const float * vertexArray, int numVertices, int elementSize )
{ {
glVertexAttribPointer(0, elementSize, GL_FLOAT, false, 0, vertexArray); glVertexAttribPointer(0, elementSize, GL_FLOAT, false, 0, vertexArray);

44
PlanetCreator/cw 6/src/ex_6_1.hpp
View File

@ -49,6 +49,8 @@ glm::vec3 spaceshipPos = glm::vec3(-4.f, 0, 0);
glm::vec3 spaceshipDir = glm::vec3(1.f, 0.f, 0.f); glm::vec3 spaceshipDir = glm::vec3(1.f, 0.f, 0.f);
GLuint VAO,VBO; GLuint VAO,VBO;
glm::mat4 planetMatrix = glm::mat4();
float aspectRatio = 1.f; float aspectRatio = 1.f;
bool DoTheImportThing(const std::string& pFile) { bool DoTheImportThing(const std::string& pFile) {
// Create an instance of the Importer class // Create an instance of the Importer class
@ -86,7 +88,7 @@ glm::mat4 createPerspectiveMatrix()
glm::mat4 perspectiveMatrix; glm::mat4 perspectiveMatrix;
float n = 0.05; float n = 0.05;
float f = 20.; float f = 100.;
float a1 = glm::min(aspectRatio, 1.f); float a1 = glm::min(aspectRatio, 1.f);
float a2 = glm::min(1 / aspectRatio, 1.f); float a2 = glm::min(1 / aspectRatio, 1.f);
perspectiveMatrix = glm::mat4({ perspectiveMatrix = glm::mat4({
@ -140,6 +142,26 @@ void drawObjectTexture(Core::RenderContext& context, glm::mat4 modelMatrix, GLui
Core::DrawContext(context); Core::DrawContext(context);
glUseProgram(0); glUseProgram(0);
}
void placeObjectOnPlanet(Core::RenderContext& objectContext, glm::mat4 objectMatrix,glm::vec3 placePoint, Core::RenderContext& planetContext, glm::mat4 planetMatrix) {
//placePoint is described by normalized vector that points to a point on a sphere from inside of itself
placePoint = glm::normalize(placePoint);
//float diameter = ?;
float diameter = 10;
objectMatrix = objectMatrix*glm::translate(placePoint * diameter) * glm::lookAt(glm::vec3(0.0f, 0.0f, 0.0f),
placePoint,
glm::vec3(0.0f, 1.0f, 0.0f));
objectMatrix = objectMatrix;
//* objectMatrix;
//*glm::translate(placePoint)
//TEMPORARY DRAW FUNCTION
drawObjectBiomes(objectContext, objectMatrix , programBiomes);
} }
void renderScene(GLFWwindow* window) void renderScene(GLFWwindow* window)
{ {
@ -150,8 +172,22 @@ void renderScene(GLFWwindow* window)
//drawObjectBiomes(sphereContext, glm::mat4(), programBiomes); drawObjectBiomes(sphereContext, glm::mat4(), programBiomes);
drawObjectBiomes(plantContext, glm::mat4(), programBiomes); for (int i = 0; i < 5; i++) {
placeObjectOnPlanet(plantContext, glm::scale(glm::mat4(), glm::vec3(0.2)), normalize(glm::vec3(0.1*i, 0.f, 1.f)), sphereContext, planetMatrix);
placeObjectOnPlanet(plantContext, glm::scale(glm::mat4(), glm::vec3(0.2)), normalize(glm::vec3(-0.1 * i, 0.f, 1.f)), sphereContext, planetMatrix);
placeObjectOnPlanet(plantContext, glm::scale(glm::mat4(), glm::vec3(0.2)), normalize(glm::vec3(0.1 * i, 0.f, -1.f)), sphereContext, planetMatrix);
placeObjectOnPlanet(plantContext, glm::scale(glm::mat4(), glm::vec3(0.2)), normalize(glm::vec3(-0.1 * i, 0.f, -1.f)), sphereContext, planetMatrix);
placeObjectOnPlanet(plantContext, glm::scale(glm::mat4(), glm::vec3(0.2)), normalize(glm::vec3(0.1 * i, 0.f, 0.f)), sphereContext, planetMatrix);
placeObjectOnPlanet(plantContext, glm::scale(glm::mat4(), glm::vec3(0.2)), normalize(glm::vec3(-0.1 * i, 0.f, 0.f)), sphereContext, planetMatrix);
}
//placeObjectOnPlanet(plantContext ,glm::scale(glm::mat4(),glm::vec3(0.2)), normalize(glm::vec3(1.f,0.f,1.f)), sphereContext, planetMatrix);
//placeObjectOnPlanet(plantContext, glm::scale(glm::mat4(), glm::vec3(0.2)), normalize(glm::vec3(0.f, 0.f, -1.f)), sphereContext, planetMatrix);
//drawObjectBiomes(plantContext, glm::eulerAngleY(glm::radians(60.f)) * glm::translate(glm::vec3(0.f, 0.f, 0.f)), programBiomes);
//drawObjectBiomes(plantContext, glm::eulerAngleY(glm::radians(90.f)) * glm::translate(glm::vec3(0.f, 0.f, 0.f)), programBiomes);
//drawObjectBiomes(plantContext, glm::eulerAngleX(30.f) * glm::translate(glm::vec3(0.f, 0.f, 0.f)), programBiomes);
glm::vec3 spaceshipSide = glm::normalize(glm::cross(spaceshipDir, glm::vec3(0.f, 1.f, 0.f))); glm::vec3 spaceshipSide = glm::normalize(glm::cross(spaceshipDir, glm::vec3(0.f, 1.f, 0.f)));
glm::vec3 spaceshipUp = glm::normalize(glm::cross(spaceshipSide, spaceshipDir)); glm::vec3 spaceshipUp = glm::normalize(glm::cross(spaceshipSide, spaceshipDir));
@ -216,7 +252,7 @@ void init(GLFWwindow* window)
programSun = shaderLoader.CreateProgram("shaders/shader_5_sun.vert", "shaders/shader_5_sun.frag"); programSun = shaderLoader.CreateProgram("shaders/shader_5_sun.vert", "shaders/shader_5_sun.frag");
programBiomes = shaderLoader.CreateProgram("shaders/shader_biomes.vert", "shaders/shader_biomes.frag"); programBiomes = shaderLoader.CreateProgram("shaders/shader_biomes.vert", "shaders/shader_biomes.frag");
loadModelToContext("./models/plants/polygon.obj", plantContext); loadModelToContext2("./models/plants/polygon.obj", plantContext);
loadModelToContext("./models/sphere.obj", sphereContext); loadModelToContext("./models/sphere.obj", sphereContext);
loadModelToContext("./models/spaceship.obj", shipContext); loadModelToContext("./models/spaceship.obj", shipContext);