Hello again,
I face this problem since too long now and couldnt find a fix.
I have a Volume object which generate animated smoke, and inside the Volume container I have a small area light. I want the light to reflect on the animated smoke.
Everything works great but i have huge amount of noise just nearby the light source (see attached picture).
I tried almost everything :
- GI Clamp is almost at minimum.
- Increasing sample max just increase uselessly my render time for cleaning such a small area.
- Reducing the power of the light doesnt give me the look I want and it doesnt fix the noise problem.
- I already use adaptive sampling.
- My area light is not behind a specular material.
- Light samples are at 200. (other lights at 100, so it should allow 2x more samples as far as i understood)
- PMC is better but incredibly long render time (i rendered with PT for animation)
Other ideas are welcome ~