pbr is an implementation of a real-time Physically Based Rendering (PBR) pipeline based on the tutorials of
LearnOpenGL. PBR materials consisting of an ambient occlusion map, a diffuse texture, a
displacement map, a normal map, a roughness map, and optionally a specular map are supported. These textures are used to
render meshes in a way grounded in physics, where all light comes from point lights. Meshes are normal mapped and
displacement mapped, these effects can be seen in the image below. Image Based Lighting is implemented where the skybox
is sampled to precompute diffuse and specular contributions from the rendering equation. In this way, not only the
contributions of the point lights are counted but also of the environment. These effects can be seen in the images
above.
- Clone GLFW 3.3.2 into directory
external/glfw-3.3.1. - Clone glad v0.1.33 into directory
external/glad-0.1.33. - Clone GLM 0.9.9.8 into directory
external/glm-0.9.9.8. - Clone stb into directory
external/stb. - Build using CMake.
- Drag MMB to orbit around the camera's focal point.
- Drag RMB to move the camera's focal point in the XZ-plane.
- Click on scene objects to bring up the translation widget.
- Click on and drag with LMB on the translation widget to translate the scene object.
- Scroll to change the distance of the camera to its focal point.
- Press 1, 2, or 3 for an environment change.
- Press F1 or F2 for a scene change.
- Texture streaming: load higher quality textures on a separate thread.
- Generate cubemap, irradiance cubemap, pre-filter cubemap, and BRDF LUT at compile time rather than run time.
- Material textures obtained from TextureHaven.
- HDR textures obtained from HDRIHaven.