interactive-global-illumination

OpenGL engine for rendering scenes with global illumination in real-time using a voxel cone tracer.

TODO:

• Refactor voxelization procedure into a separate class
• Shadow map tight bound using AABB
• Additional Textures
• Specular Cones
• Interactive imgui interface to edit light, material and models
• Conservative Rasterization
• Emissive materials
• Dynamic mesh voxelization
• Take atomic max of a colour for each voxel ??
• Compute two light bounces ??
• Possibly use assimp for a PBR based pipeline ??
• Sparse voxel octree ??

ImGui Editor Options

• Move point light source around and change its color
• Toggle between viewing modes:
  • Visualization
    • Shadows
  • GI
    • Indirect Diffuse
    • Indirect Specular
• Change material properties
• Move objects around
• Change voxel map resolution

Benchmark (needs to be redone)

The following benchmark is obtained on a single NVIDIA RTX 4090 GPU.

VOXEL_DIM	1280x720	1920x1080
512	54 FPS	54 FPS
256	55 FPS	55 FPS
128	56 FPS	56 FPS
64	56 FPS	57 FPS