Hello,
I am having an issue in Houdini 15 (latest Build 15.0.347) where the Geo Light is not emitting light when I give it a material. I have found a couple possible problem areas, but still do not understand what the real issue might be that's causing this.
I have it set up so that the Geo Light is using a grid object, as well the same material as that grid (glowing cracks), to emit the light. When I render though the light is not being emitted onto the sphere. I have tried messing with the intensity/exposure, as well as attenuation, to make sure it wasn't just too dim to see. Still nothing.
I have tried using both Ray Tracing and PBR rendering engines and neither work until I uncheck “Ray Variance Anti-aliasing.” With that unchecked though, if I check the “Transform Into This Object” check box it stops emitting light again. If I uncheck the “Transform Into This Object”- check box though it emits light. With “Ray Variance Anti-aliasing” on it does not work whether the “Transform Into This Object” check box is checked or not. So I am wondering if anyone here may have an idea of what might be going on here? Any help or insight you can provide is appreciated. Thanks