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Geenz Linden
As it stands, Second Life (secretly) supports global illumination via reflection probes. This is confusing to users - as we only really specify it as part of the reflection probe. In reality, there's often a need to have more light probes for GI than there is for reflection probes.
This change means that:
  • Probes can have three modes. Reflection, light, or both
  • Existing probes would be both for reasons of content compatibility
  • Potentially, changing how we store light probe data (using spherical gaussians or spherical harmonics or some such)