Commit Graph

3 Commits

Author SHA1 Message Date
lawnjelly
512b0f16a3 Tight shadow culling - increase epsilon to prevent flickering
Near colinear triangles were still causing inaccuracy in culling planes, so the threshold for colinearity is bumped up.
2024-05-18 14:14:27 +01:00
lawnjelly
70cd25f3eb Tighter shadow culling - fix light colinear to frustum edge
In rare situations if a light is placed near colinear to a frustum edge, the extra culling plane derived can have an inaccurate normal due to floating point error.
This PR detects colinear triangles, and prevents adding a culling plane in this situation.
2024-03-20 16:47:54 +00:00
lawnjelly
4577dfdb67 Shadow volume culling and tighter shadow caster culling
Existing shadow caster culling takes no account of the camera.
This PR adds the highly encapsulated class RenderingLightCuller which can cut down the casters in the shadow volume to only those which can cast shadows on the camera frustum.
2024-01-30 08:38:31 +00:00