Techniques

This page lists the rendering techniques used in OpenSpades.

• Ocean Simulation - r_water
• Soft Sprite - r_softSprite
• Enhanced Blending
• Shadowing
  • Shadow Maps - r_modelShadows for dynamic models
  • Cascaded Shadow Maps - MSDN
  • Sparse Shadow Maps
  • Variance Shadow Maps - Paper
  • Virtual shadow maps (OpenSpades original!)
• Local Illumination
  • Ray-traced Volumetric Light - r_fogShadow, Nvidia's white paper
    • Fog
  • Physically based shading using Disney's principled BRDF and some crude approximations
• Global Illumination - r_radiosity
  • Simple Ambient Occlusion - this is done even when r_radiosity is set to 0
  • Ray-traced Ambient Occlusion
  • Reflective Shadow Maps (CPU based implementation) - Paper
  • Screen-Space reflections and refractions, hybrid w/planar reflections (OpenSpades original!) - r_water 3
• Post Processing
  • Screen-Space Motion Blur - r_cameraBlur
  • Fast Approximate Anti-Aliasing - r_fxaa
  • Lens Simulation - r_lens
  • Hexagonal depth-of-field - r_depthOfField