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~ | BVH sent to gpu

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TheRedShip
2025-01-17 16:27:39 +01:00
parent 6f80a66550
commit 6fdea11adb
14 changed files with 359 additions and 46 deletions
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15
srcs/RT.cpp
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@ -20,7 +20,8 @@ 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/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);
@ -51,6 +52,12 @@ int main(int argc, char **argv)
glBufferData(GL_SHADER_STORAGE_BUFFER, scene.getGPULights().size() * sizeof(int), nullptr, GL_STATIC_DRAW);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 3, 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, 4, bvhSSBO);
GLuint cameraUBO;
glGenBuffers(1, &cameraUBO);
@ -86,6 +93,11 @@ int main(int argc, char **argv)
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());
GPUCamera camera_data = scene.getCamera()->getGPUData();
glBindBuffer(GL_UNIFORM_BUFFER, cameraUBO);
glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(GPUCamera), &camera_data);
@ -96,6 +108,7 @@ 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_lightsNum", gpu_lights.size());
shader.set_int("u_pixelisation", window.getPixelisation());
shader.set_float("u_time", (float)(glfwGetTime()));