During translation of Blender’s Interface, I encountered these terms:
“Normal Bias”
“View Bias”
“Facing Bias”
“Capture Escape Bias”
Some of which are found in this source file:
source/blender/makesrna/intern/rna_lightprobe.cc
Can someone familiar with how light probing works explain to me what these terms mean, please? I had some ideas but not dared to express as I though I might be wrong.
Thank you!
Those settings are relative to Volume light probes in EEVEE next, for Blender 4.1.
This type of light probe approximates indirect lighting bounces, by sampling what should be such lighting at few points, defined by its resolution.
For surfaces between those points, the resulting irradiance will come from a mixing of those samples.
According to tooltips,
Facing Bias corresponds to a smoothing of irradiance. But that may introduce light bleeding.
Normal Bias and View Bias are ways to correct this light bleeding by offsetting sampling according to View or Normal of surface.
Capture Surface Bias moves capture points away from surface.
Capture Escape Bias moves capture points outside objects.
Thank you ever so much. I did have to watch this movie (https://www.youtube.com/watch?v=9SD0of-mOHo) to remind me of the light probes and how it works in Blender. Thanks again.
