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~ | Better memory management

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TheRedShip
2025-01-10 23:07:20 +01:00
parent 9aa1de378f
commit 1a102b1ab0
2 changed files with 19 additions and 15 deletions
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34
srcs/RT.cpp
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@ -22,11 +22,27 @@ int main(int argc, char **argv)
Window window(&scene, WIDTH, HEIGHT, "RT_GPU", 0); Window window(&scene, WIDTH, HEIGHT, "RT_GPU", 0);
Shader shader("shaders/vertex.vert", "shaders/frag.frag", "shaders/compute.glsl"); Shader shader("shaders/vertex.vert", "shaders/frag.frag", "shaders/compute.glsl");
GLint max_gpu_size;
glGetIntegerv(GL_MAX_SHADER_STORAGE_BLOCK_SIZE, &max_gpu_size);
const std::vector<GPUObject> &object_data = scene.getObjectData();
const std::vector<GPUMaterial> &material_data = scene.getMaterialData();
std::cout << "Sending " << object_data.size() << " objects for " << \
object_data.size() * sizeof(GPUObject) + material_data.size() * sizeof(GPUMaterial) \
<< " / " << max_gpu_size << " bytes" << std::endl;
GLuint objectSSBO; GLuint objectSSBO;
glGenBuffers(1, &objectSSBO); glGenBuffers(1, &objectSSBO);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, objectSSBO);
glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(GPUObject) * object_data.size(), nullptr, GL_STATIC_DRAW);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 1, objectSSBO);
GLuint materialSSBO; GLuint materialSSBO;
glGenBuffers(1, &materialSSBO); glGenBuffers(1, &materialSSBO);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, materialSSBO);
glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(GPUMaterial) * material_data.size(), nullptr, GL_STATIC_DRAW);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 2, materialSSBO);
GLuint cameraUBO; GLuint cameraUBO;
glGenBuffers(1, &cameraUBO); glGenBuffers(1, &cameraUBO);
@ -40,27 +56,15 @@ int main(int argc, char **argv)
size_t size = sizeof(vertices) / sizeof(Vertex) / 3; size_t size = sizeof(vertices) / sizeof(Vertex) / 3;
shader.setupVertexBuffer(vertices, size); shader.setupVertexBuffer(vertices, size);
GLint max_gpu_size;
glGetIntegerv(GL_MAX_SHADER_STORAGE_BLOCK_SIZE, &max_gpu_size);
const std::vector<GPUObject> &object_data = scene.getObjectData();
const std::vector<GPUMaterial> &material_data = scene.getMaterialData();
std::cout << "Sending " << object_data.size() << " objects for " << \
object_data.size() * sizeof(GPUObject) + material_data.size() * sizeof(GPUMaterial) \
<< " / " << max_gpu_size << " bytes" << std::endl;
while (!window.shouldClose()) while (!window.shouldClose())
{ {
glUseProgram(shader.getProgramCompute()); glUseProgram(shader.getProgramCompute());
glBindBuffer(GL_SHADER_STORAGE_BUFFER, objectSSBO); glBindBuffer(GL_SHADER_STORAGE_BUFFER, objectSSBO);
glBufferData(GL_SHADER_STORAGE_BUFFER, object_data.size() * sizeof(GPUObject), object_data.data(), GL_DYNAMIC_DRAW); glBufferSubData(GL_SHADER_STORAGE_BUFFER, 0, object_data.size() * sizeof(GPUObject), object_data.data());
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 1, objectSSBO);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, materialSSBO); glBindBuffer(GL_SHADER_STORAGE_BUFFER, materialSSBO);
glBufferData(GL_SHADER_STORAGE_BUFFER, material_data.size() * sizeof(GPUMaterial), material_data.data(), GL_DYNAMIC_DRAW); glBufferSubData(GL_SHADER_STORAGE_BUFFER, 0, material_data.size() * sizeof(GPUMaterial), material_data.data());
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 2, materialSSBO);
GPUCamera camera_data = scene.getCamera()->getGPUData(); GPUCamera camera_data = scene.getCamera()->getGPUData();
glBindBuffer(GL_UNIFORM_BUFFER, cameraUBO); glBindBuffer(GL_UNIFORM_BUFFER, cameraUBO);