coustics is it working?

[Stugys]

hello, i tryed sun, area, and spot with glass sphere, and did not get any caustics is it working with today's build?

[andybot_cg]

For me, it looks like caustics only works with CPU, doesn't work with GPU. (Using about a week old build at the moment.) Did it work for you recently?

[Stugys]

sorry for false message, looks like for glass object i need to untick affect shadows and caustics works fine, one more question what can cause this white splotches

[Stugys]

andybot, do you use for autdoor renderings domelight only or dome light+sun?

[andybot_cg]

Glad you figured out about unchecking affect alpha, that would do it I would like to know from the developers if it's expected that caustics with GPU is not working, or if there are any workarounds with GI settings to enable it in GPU. Here's a simple test scene if that helps.

Looks like those splotches might be from the domelight. You could try rendering with only sun enabled to check if that's the cause.

For exteriors, most of the time I use sun and sky for lighting with a domelight just for reflections (affect diffuse disabled). I usually increase the sun radius to get softer shadows. For dusk shots, I'll use an evening HDRI only.

[Stugys]

hm caustics does not render on GPU on my computer too