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TheRedShip
2025-01-19 17:58:11 +01:00
parent 71df788350
commit 0ae411d8ea
6 changed files with 104 additions and 2703 deletions
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44
srcs/RT.cpp
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@ -20,52 +20,53 @@ int main(int argc, char **argv)
return (1);
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/debug.glsl");
Shader shader("shaders/vertex.vert", "shaders/frag.frag", "shaders/compute.glsl");
// Shader shader("shaders/vertex.vert", "shaders/frag.frag", "shaders/debug.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<GPUTriangle> &triangle_data = scene.getTriangleData();
const std::vector<GPUBvh> &bvh_data = scene.getBVH();
const std::vector<GPUMaterial> &material_data = scene.getMaterialData();
std::cout << "Sending " << object_data.size() << " objects for " << \
object_data.size() * sizeof(GPUObject) + \
triangle_data.size() * sizeof(GPUTriangle) + \
bvh_data.size() * sizeof(GPUBvh) + \
material_data.size() * sizeof(GPUMaterial) \
<< " / " << max_gpu_size << " bytes" << std::endl;
GLuint objectSSBO;
glGenBuffers(1, &objectSSBO);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, objectSSBO);
glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(GPUObject) * object_data.size(), nullptr, GL_STATIC_DRAW);
glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(GPUObject) * object_data.size(), object_data.data(), GL_STATIC_DRAW);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 1, objectSSBO);
GLuint trianglesSSBO;
glGenBuffers(1, &trianglesSSBO);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, trianglesSSBO);
glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(GPUTriangle) * triangle_data.size(), nullptr, GL_STATIC_DRAW);
glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(GPUTriangle) * triangle_data.size(), triangle_data.data(), GL_STATIC_DRAW);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 2, trianglesSSBO);
GLuint bvhSSBO;
glGenBuffers(1, &bvhSSBO);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, bvhSSBO);
glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(GPUBvh) * bvh_data.size(), bvh_data.data(), GL_STATIC_DRAW);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 3, bvhSSBO);
GLuint 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, 3, materialSSBO);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 4, materialSSBO);
GLuint lightSSBO;
glGenBuffers(1, &lightSSBO);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, lightSSBO);
glBufferData(GL_SHADER_STORAGE_BUFFER, scene.getGPULights().size() * sizeof(int), nullptr, GL_STATIC_DRAW);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 4, lightSSBO);
GLuint bvhSSBO;
glGenBuffers(1, &bvhSSBO);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, bvhSSBO);
glBufferData(GL_SHADER_STORAGE_BUFFER, scene.getBVH().size() * sizeof(GPUBvh), nullptr, GL_STATIC_DRAW);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 5, bvhSSBO);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 5, lightSSBO);
GLuint cameraUBO;
@ -99,13 +100,7 @@ int main(int argc, char **argv)
{
glUseProgram(shader.getProgramCompute());
glBindBuffer(GL_SHADER_STORAGE_BUFFER, objectSSBO);
glBufferSubData(GL_SHADER_STORAGE_BUFFER, 0, object_data.size() * sizeof(GPUObject), object_data.data());
glBindBuffer(GL_SHADER_STORAGE_BUFFER, trianglesSSBO);
glBufferSubData(GL_SHADER_STORAGE_BUFFER, 0, triangle_data.size() * sizeof(GPUTriangle), triangle_data.data());
glBindBuffer(GL_SHADER_STORAGE_BUFFER, materialSSBO);
glBufferSubData(GL_SHADER_STORAGE_BUFFER, 0, material_data.size() * sizeof(GPUMaterial), material_data.data());
@ -113,16 +108,11 @@ int main(int argc, char **argv)
std::vector<int> gpu_lights_array(gpu_lights.begin(), gpu_lights.end());
glBindBuffer(GL_SHADER_STORAGE_BUFFER, lightSSBO);
glBufferSubData(GL_SHADER_STORAGE_BUFFER, 0, gpu_lights_array.size() * sizeof(int), gpu_lights_array.data());
std::vector<GPUBvh> gpu_bvh = scene.getBVH();
glBindBuffer(GL_SHADER_STORAGE_BUFFER, bvhSSBO);
glBufferSubData(GL_SHADER_STORAGE_BUFFER, 0, gpu_bvh.size() * sizeof(GPUBvh), gpu_bvh.data());
Camera *camera = scene.getCamera();
// performance profiling
if (true)
if (false)
{
float time = (float)(glfwGetTime()) ;
@ -161,7 +151,7 @@ int main(int argc, char **argv)
shader.set_int("u_frameCount", window.getFrameCount());
shader.set_int("u_objectsNum", object_data.size());
shader.set_int("u_bvhNum", gpu_bvh.size());
shader.set_int("u_bvhNum", scene.getBVH().size());
shader.set_int("u_lightsNum", gpu_lights.size());
shader.set_int("u_pixelisation", window.getPixelisation());
shader.set_float("u_time", (float)(glfwGetTime()));