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Cycles light spread importance sampling
Confirmed, NormalPublicTO DO


D10594: Cycles: Added a spread parameter to area lights. adds support for light spread to area lights.

There is basic importance sampling for rectangular area lights, based on finding the subset of the area light that actually affects a shading point.

But still missing:

  • Importance sampling for disk/ellipse light.
  • Take spread into account for volume equiangular sampling.

Event Timeline

Brecht Van Lommel (brecht) changed the task status from Needs Triage to Confirmed.Tue, Mar 30, 4:52 PM
Brecht Van Lommel (brecht) created this task.