A simple ray tracing program for rendering 3D scene written in C++.
- Camera (Projection, Perspective)
- Shading (Ambient, Diffuse, Specular)
- Shadows
- Reflections
- Plane, sphere and custom geometry
- Simple scene graph
- Simple animations
Clone/fork repository (make sure to use the recursive flat to fetch submodules too, e.g git clone http://repo.link --recursive)
mkdir build and cd build
run cmake ../ -DCMAKE_BUILD_TYPE=Release
run make
run ./Raytracer
The ray tracer uses a simple scene graph structure which makes it easier to add/remove objects from the rendered scene. For example this is how you could create a scene with a sphere:
//Instance a scene
Scene scene;
//Create a perspective camera (1st parameter is position)
Camera::PerspectiveCamera camera(Vector3d(0, 0, -2));
//Create a diffused material
Material diffusedMat(0.2, //Ambient intensity
Vector3d(1, 1, 1.5), // Ambient coefficiencies
0.4, // Diffuse intensity
Vector3d(1, 1, 1.5), // Diffuse coefficiencies
0,//Specular intensity
Vector3d(1, 1, 1), //Specular coefficiencies
1000); // Phong exponent
//Instance a sphere
Sphere sphere(Vector3d(-1, .5, 3), 0.5);
sphere.setMaterial(specularMat);
scene.add(sphere);To add a light to the same scene we would do this
// Instance a light (vec3 position, float intensity)
Light light(Vector3d(-3, .5, -1.8), 1);
scene.add(light);And finally to load an .off model we would do this
//First argument is a position vector
Model model(Vector3d(-4, 10, 50));
model.loadOFF("bumpy_cube.off");
model.setMaterial(specularMat);Tested on macOS (10.13.2) using CMake (3.10.0)
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