I was running some experiments with reflective caustics when I noticed an odd behavior. My test scene has one small area light shining onto a wavy chrome object which is then reflecting some caustics onto the floor. The small light is set to be visible and it is not hidden. When using PPT, BDPT or Vray RT the caustics show up on the floor AND the reflection of the light also shows up on the chrome object. But when I turn on vray caustics (photon mapped) and render the scene with IM/LC or Brute Force for GI suddenly the light is no longer visible in the chrome reflections. I was hoping to start adding reflective caustics into my renderings using the photon mapped caustics, but obviously don't want to loose control over which lights are visible in reflections. Examples below:
Vray RT (I think this is correct, caustics and light source are visible in chrome reflection).
BDPT (note that the light is visible in the chrome reflection, but the caustics on the floor are not).
PPT (light and caustics visible in reflection, caustics very noisy, but only ran for 3.5 min, with time noise would probably would clean up)
IM / LC with vray caustics (note light source is not visible in reflection)
Brute Force GI with vray caustics (again light source not visible in reflection).
So I guess my question would be is there some setup that allows me to use vray caustics without loosing the reflection of light sources?
Vray RT (I think this is correct, caustics and light source are visible in chrome reflection).
BDPT (note that the light is visible in the chrome reflection, but the caustics on the floor are not).
PPT (light and caustics visible in reflection, caustics very noisy, but only ran for 3.5 min, with time noise would probably would clean up)
IM / LC with vray caustics (note light source is not visible in reflection)
Brute Force GI with vray caustics (again light source not visible in reflection).
So I guess my question would be is there some setup that allows me to use vray caustics without loosing the reflection of light sources?
Comment