Rendered Exr image by canvas may not keep render quality?

kitakoredaz

blender can more easy compositing. daz can not improve iray canvas , (daz may say it is iray problem yes I know,,)

but you could  at least improve shader mixer, and your documents. 

Richard Haseltine

The amount of light you have available is going to affect how quickly the scene converges - I suspect that if you have only a tightly focussed catch-light for the eye in one canvas then there's almost no light on the rest of the scene, just a very little bounced light, and you are going to have to go through a lot more iterations to get a noise-free result.

Jimbow

If it's a fully enclosed interior, and if it's a heavy scene but you're not particularly bothered about GPU rendering, you might want to try the Architecural Sampler. It might seem slow to begin with, but, given it's specifically designed for interiors, NVidia say it looks slow to start with but bypasses the default sampler settings later on. Mec4D did some tests and the Archi sampler was much faster IIRC. It might work and it might not, and there is apparently an overhead on the GPU, but it might be worth a shot.

Tobor

Two things:

1. Specific light path renders may miss cues for the firefly filter and pixel convergence estimator. You can try adding a Beauty canvas as the primary canvas, along with the others. This sometimes helps. Even so, light path renders tend to take longer than combined Beauty renders.

2. If you are rendering with tone mapping off (common when creating a 32-bit image), you should also set the nominal luminance control, which in turn establishes a baseline for filtering and convergence estimates.

kitakoredaz

kitakoredaz

kitakoredaz

kitakoredaz

 can not input LPE from left to right,   is actually better to remove from UI.