Rendering very grainy

chriswrcg

I cant figure out why this is rendering so grainy except  that I need more light.  The problem is I don't want many more lights as it would ruin the effect I am trying to achieve.  what should I do?

Richard Haseltine

You could add light via ghost lighting (one or more planes with the Emissive preset applied and Cutout Opacity made close to but not quite 0) and then adjust tone mapping to balance the resultant render.

margrave

The effect you're trying to achieve won't work, since Iray needs light data to make renders not grainy. Add soft, diffuse points lights to give the scene a nice ambient background light level. If you need to, you can darken it.