Complete deferred render pipeline for panda3d (Work in progress)

• Still allows some objects to have forward passes

• Pre-Renders depth to avoid overdraw

• with one bounce for indirect lighting / color bleeding

• complete lighting and shadows via compute shader
  • Too slow, replaced by regular fragment shaders

• Point Lights

  • Either shadow casting or not
  • When shadow casting, only use 2 perspectives
    • Parabolic mapping

• Directional Lights

  • Sun only
  • PSSM Shadows

• Ambient Lights

  • Darken or Bright
    • Artist controlled Global Illumination

• Projector Lights

  • Either shadow casting or not
  • Only 1 perspective
  • Projection texture
    • Can be used for flashlights for example

• Area Lights

  • Caster is a rectangle
    • Orthographic Lens
  • Also supports projection texture
  • Maybe Cone-Mapping

• Only in areas where reflective materials are used
  • and SSLR does not work well for the material
    • like water patches
• Image based lighting

• Screen Space Local Reflections
• For specular materials
• Cheapest solution for reflections

• rare usage, because of performance
• Render only 2 perspectives, parabolic mapping
• Not updated every frame

• Focal Blur
• Movement Blur (edges)
• Mipmap based + in place 4x4 kernel
  • Varying radius (DOF)

• Based on displacement map, or detail normals
• Height stored in z component of normalmap

• In combination with blur