mirror of
https://github.com/TheRedShip/RT_GPU.git
synced 2025-09-27 18:48:36 +02:00
118 lines
4.2 KiB
C++
118 lines
4.2 KiB
C++
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* RT.cpp :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: ycontre <ycontre@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/09/27 14:51:49 by TheRed #+# #+# */
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/* Updated: 2025/03/18 17:09:34 by tomoron ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "RT.hpp"
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void setupScreenTriangle(GLuint *VAO);
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void drawScreenTriangle(GLuint VAO, GLuint output_texture, GLuint program);
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std::vector<GLuint> generateTextures(unsigned int textures_count);
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void updateDataOnGPU(Scene &scene, std::vector<Buffer *> buffers);
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void shaderDenoise(ShaderProgram &denoising_program, GPUDenoise &denoise, std::vector<GLuint> textures);
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int main(int argc, char **argv)
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{
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Arguments args(argc, argv);
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if (args.error())
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return (1);
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Scene scene(args.getSceneName());
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if (scene.error())
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return (1);
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Window window(&scene, WIDTH, HEIGHT, "RT_GPU", 0, args);
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GLuint VAO;
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setupScreenTriangle(&VAO);
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std::vector<GLuint> textures = generateTextures(8);
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ShaderProgram raytracing_program;
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Shader compute = Shader(GL_COMPUTE_SHADER, "shaders/compute.glsl");
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int maxTextureUnits; glGetIntegerv(GL_MAX_COMPUTE_TEXTURE_IMAGE_UNITS, &maxTextureUnits);
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std::cout << "Max texture units: " << maxTextureUnits << std::endl;
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// compute.setDefine("TEXTURE_MAX", std::to_string(maxTextureUnits / 2));
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// compute.reload();
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raytracing_program.attachShader(&compute);
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raytracing_program.link();
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ShaderProgram denoising_program;
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Shader denoise = Shader(GL_COMPUTE_SHADER, "shaders/denoising.glsl");
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denoising_program.attachShader(&denoise);
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denoising_program.link();
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ShaderProgram render_program;
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Shader vertex = Shader(GL_VERTEX_SHADER, "shaders/vertex.vert");
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Shader frag = Shader(GL_FRAGMENT_SHADER, "shaders/frag.frag");
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render_program.attachShader(&vertex);
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render_program.attachShader(&frag);
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render_program.link();
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std::vector<Buffer *> buffers = scene.createDataOnGPU();
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if (!scene.loadTextures())
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return (-1);
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while (!window.shouldClose())
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{
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window.clusterizerUpdate(textures, denoising_program, buffers);
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window.updateDeltaTime();
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updateDataOnGPU(scene, buffers);
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window.rendererUpdate(textures, denoising_program);
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glClear(GL_COLOR_BUFFER_BIT);
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raytracing_program.use();
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raytracing_program.set_int("u_frameCount", window.getFrameCount());
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raytracing_program.set_int("u_objectsNum", scene.getObjectData().size());
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raytracing_program.set_int("u_bvhNum", scene.getBvhData().size());
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raytracing_program.set_int("u_lightsNum", scene.getGPULights().size());
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raytracing_program.set_int("u_pixelisation", window.getPixelisation());
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raytracing_program.set_float("u_time", (float)(glfwGetTime()));
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raytracing_program.set_vec2("u_resolution", glm::vec2(WIDTH, HEIGHT));
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window.reduceTimeFrame();
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std::map<std::string, std::vector<GLuint>> object_textures;
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object_textures["textures"] = scene.getTextureIDs();
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object_textures["emissive_textures"] = scene.getEmissionTextureIDs();
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raytracing_program.set_textures(object_textures);
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raytracing_program.dispathCompute((WIDTH + 15) / 16, (HEIGHT + 15) / 16, 1);
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if (scene.getDenoise().enabled && !window.isRendering())
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shaderDenoise(denoising_program, scene.getDenoise(), textures);
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window.imGuiNewFrame();
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render_program.use();
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drawScreenTriangle(VAO, textures[window.getOutputTexture()], render_program.getProgram());
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window.imGuiRender(raytracing_program, textures);
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window.display();
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window.pollEvents();
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// glClearTexImage(textures[3], 0, GL_RGBA, GL_FLOAT, nullptr);
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// glClearTexImage(textures[4], 0, GL_RGBA, GL_FLOAT, nullptr);
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}
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ImGui_ImplOpenGL3_Shutdown();
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ImGui_ImplGlfw_Shutdown();
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ImGui::DestroyContext();
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return (0);
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}
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