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+ | Light array sent to gpu

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TheRedShip
2025-01-16 17:17:03 +01:00
parent 787833ac84
commit 02e670195c
9 changed files with 69 additions and 9 deletions
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18
srcs/RT.cpp
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@ -44,6 +44,14 @@ int main(int argc, char **argv)
glBufferData(GL_SHADER_STORAGE_BUFFER, sizeof(GPUMaterial) * material_data.size(), nullptr, GL_STATIC_DRAW);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 2, 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, 3, lightSSBO);
GLuint cameraUBO;
glGenBuffers(1, &cameraUBO);
glBindBuffer(GL_UNIFORM_BUFFER, cameraUBO);
@ -56,6 +64,7 @@ int main(int argc, char **argv)
glBufferData(GL_UNIFORM_BUFFER, sizeof(GPUVolume), nullptr, GL_STATIC_DRAW);
glBindBufferBase(GL_UNIFORM_BUFFER, 1, volumeUBO);
shader.attach();
Vertex vertices[3] = {{{-1.0f, -1.0f}, {0.0f, 0.0f}},{{3.0f, -1.0f}, {2.0f, 0.0f}},{{-1.0f, 3.0f}, {0.0f, 2.0f}}};
@ -72,6 +81,11 @@ int main(int argc, char **argv)
glBindBuffer(GL_SHADER_STORAGE_BUFFER, materialSSBO);
glBufferSubData(GL_SHADER_STORAGE_BUFFER, 0, material_data.size() * sizeof(GPUMaterial), material_data.data());
std::set<int> gpu_lights = scene.getGPULights();
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());
GPUCamera camera_data = scene.getCamera()->getGPUData();
glBindBuffer(GL_UNIFORM_BUFFER, cameraUBO);
glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(GPUCamera), &camera_data);
@ -79,12 +93,14 @@ int main(int argc, char **argv)
glBindBuffer(GL_UNIFORM_BUFFER, volumeUBO);
glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(GPUVolume), &scene.getVolume());
shader.set_int("u_frameCount", window.getFrameCount());
shader.set_int("u_objectsNum", object_data.size());
shader.set_int("u_lightsNum", gpu_lights.size());
shader.set_int("u_pixelisation", window.getPixelisation());
shader.set_float("u_time", (float)(glfwGetTime()));
shader.set_vec2("u_resolution", glm::vec2(WIDTH, HEIGHT));
glDispatchCompute((WIDTH + 15) / 16, (HEIGHT + 15) / 16, 1);
glMemoryBarrier(GL_SHADER_IMAGE_ACCESS_BARRIER_BIT);