This is an experimental environment for implementing various rendering methods in OpenGL.
- C++20
- Clang(Currently, GCC compiler doesn't work)
- CMake 3.12 or Higher
- OpenGL 4.6
git submodule update --init --recursive
mkdir build
cd build
CC=clang CXX=clang++ cmake ..
make./scripts/download_assets.shYou can add your example by implementing SandboxBase interface like this.
#include <filesystem>
#include "sandbox-base.hpp"
namespace sandbox
{
class Triangle : public SandboxBase
{
public:
Triangle(uint32_t width, uint32_t height) : SandboxBase(width, height) {}
void beforeRender() override
{
float vertices[] = {
-0.5f, -0.5f, 0.0f, // position1
1.0f, 0.0f, 0.0f, // color1
0.5f, -0.5f, 0.0f, // position2
0.0f, 1.0f, 0.0f, // color2
0.0f, 0.5f, 0.0f, // position3
0.0f, 0.0f, 1.0f // color3
};
buffer.setData(vertices, 18, GL_STATIC_DRAW);
vao.bindVertexBuffer(buffer, 0, 0, 6 * sizeof(float));
vao.activateVertexAttribution(0, 0, 3, GL_FLOAT, 0);
vao.activateVertexAttribution(0, 1, 3, GL_FLOAT, 3 * sizeof(float));
pipeline.loadVertexShader(
std::filesystem::path(CMAKE_CURRENT_SOURCE_DIR) /
"shaders/shader.vert");
pipeline.loadFragmentShader(
std::filesystem::path(CMAKE_CURRENT_SOURCE_DIR) /
"shaders/shader.frag");
}
void runImGui() override {}
void handleInput() override
{
if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS) {
glfwSetWindowShouldClose(window, GLFW_TRUE);
}
}
void render() override
{
glClear(GL_COLOR_BUFFER_BIT);
pipeline.activate();
vao.activate();
glDrawArrays(GL_TRIANGLES, 0, 3);
vao.deactivate();
pipeline.deactivate();
}
private:
ogls::Buffer buffer;
ogls::VertexArrayObject vao;
ogls::Pipeline pipeline;
};
} // namespace sandbox
int main()
{
sandbox::Triangle app(1280, 720);
app.run();
return 0;
}See sandbox directory for details.
Hello world in OpenGL.
Visualize 3d models with various layers such as Position, Normal, TexCoords, Diffuse, ...
Visualize basis of tangent space at each vertex using geometry shader.
Blinn-Phong shading example with moving point light.
Normal mapping example with Blinn-Phong shading.
Bump mapping example using height map with Blinn-Phong shading.
Shadow mapping example with moving directional light.
Omnidirectional shadow mapping example with moving point light.
