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+ | Fog imGUI

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TheRedShip
2025-01-14 20:38:03 +01:00
parent 95098711f7
commit 2899055b51
9 changed files with 103 additions and 36 deletions
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9
srcs/RT.cpp
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@ -50,6 +50,12 @@ int main(int argc, char **argv)
glBufferData(GL_UNIFORM_BUFFER, sizeof(GPUCamera), nullptr, GL_DYNAMIC_DRAW);
glBindBufferBase(GL_UNIFORM_BUFFER, 0, cameraUBO);
GLuint volumeUBO;
glGenBuffers(1, &volumeUBO);
glBindBuffer(GL_UNIFORM_BUFFER, volumeUBO);
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}}};
@ -70,6 +76,9 @@ int main(int argc, char **argv)
glBindBuffer(GL_UNIFORM_BUFFER, cameraUBO);
glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(GPUCamera), &camera_data);
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_pixelisation", window.getPixelisation());

11
srcs/class/Scene.cpp
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@ -15,6 +15,12 @@
Scene::Scene()
{
_camera = new Camera(glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3(0.0f, 1.0f, 0.0f), -90.0f, 0.0f);
_gpu_volume.enabled = false;
_gpu_volume.sigma_a = glm::vec3(0.0001f);
_gpu_volume.sigma_s = glm::vec3(0.0800f);
_gpu_volume.sigma_t = _gpu_volume.sigma_a + _gpu_volume.sigma_s;
_gpu_volume.g = 0.9f;
}
Scene::~Scene()
@ -143,6 +149,11 @@ std::vector<GPUMaterial>& Scene::getMaterialData()
return (_gpu_materials);
}
GPUVolume &Scene::getVolume()
{
return (_gpu_volume);
}
Camera *Scene::getCamera(void) const
{
return (_camera);

23
srcs/class/Window.cpp
View File

@ -215,6 +215,29 @@ void Window::imGuiRender()
ImGui::End();
ImGui::Begin("Fog settings");
has_changed |= ImGui::Checkbox("Enable", &_scene->getVolume().enabled);
ImGui::Separator();
if (ImGui::SliderFloat("Absorption", &_scene->getVolume().sigma_a.x, 0., 0.1))
{
_scene->getVolume().sigma_a = glm::vec3(_scene->getVolume().sigma_a.x);
_scene->getVolume().sigma_t = _scene->getVolume().sigma_a + _scene->getVolume().sigma_s;
has_changed = true;
}
if (ImGui::SliderFloat("Scattering", &_scene->getVolume().sigma_s.x, 0., 0.5))
{
_scene->getVolume().sigma_s = glm::vec3(_scene->getVolume().sigma_s.x);
_scene->getVolume().sigma_t = _scene->getVolume().sigma_a + _scene->getVolume().sigma_s;
has_changed = true;
}
if (ImGui::SliderFloat("G", &_scene->getVolume().g, 0., 1.))
has_changed = true;
ImGui::End();
ImGui::Render();
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());