[GPU-PLM] Shadowmask Not Generated

When 4 lights are overlapping, for the 4th light, no shadowmask gets generated when baking with gpu, but it does when baking with cpu

also, is there any way / are there any plans to be able to overcome the 4 light shadowmask limit? full baking, which is what it defaults to for > 4 lights, is not a solution. there is no volumetric fog, there is are specular reflections. it stands out as being off too strongly.

im having to bake indirect, then set all but three lights to realtime and bake shadowmask, then replace the indirect map from the previous bake to account for realtime lights, as i can’t have the lights default to fully baked

its something to do with the alpha channel not generated in gpu plm

I am unable to reproduce the problem, 4 overlapping lights are generating correct shadow mask using the GPU lightmapper. Please file a bug report with your scene attached. Thanks.