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« on: 2020-06-04, 13:14:18 »
Sorry to dig up an old thread...
To continue this discussion, I understand that turning caustics on/off for objects is not possible. Fair enough, the 3 other tick boxes should be able to do a good enough job...
However, I'm playing around with Caustics today for the first time in a while.
I have a glass, a table and sun. Renders perfectly, caustics look great! The glass has caustics turned on, the sun too, but the table not.
When I put the same glass, table and sun into a 'complete' scene, the caustics basically fails - very blurry, very noisy nothing like the simpler scene. The sun is the only light source with caustics enabled, no other objects have caustics ticked (though, with 100 or so materials, is there any fast way to confirm this?). The sun light is uninterrupted (ie; doesn't travel through a window pane) when hitting the glass.
So why the big difference? Is this just how it is? All the other objects in the scene affect the caustics? If I have buildings across the street they're messing up my nice caustics, for example?
Or am I missing something/doing something wrong?
Thanks for any clarification!