Noise Reduction produces Black areas

[fritz]

Hi i cant de noise my renders (32 bit exr), as they produce black areas that don't desapear.

This will happen with other renders as well.

my specs:

Affinity Photo 1.9.2

win 10 (updated)

geForce gtx 980 4GB (Latest Drivers)

i7 9470k

32gb ddr3

perspectiva.exr

[fritz]

Already tried the following tip without success, any help would be appreciated, thanks

NVIDIA Optimize for Compute Performance
Problem: Document renders incorrectly
Cause: Incompatible with sparse textures (NVIDIA suggests disabling it for applications that use sparse textures, such as Affinity)
Solution: Disable 'Optimize for Compute Performance'

[ashf]

Have to tried disabling Hardware Acceleration in Preferences>Performance?

[Gabe]

Hi both,

Actually this has nothing to do with hardware acceleration, nor our app. The problem here is the source EXR file, which has loads of NaN pixels. When using noise reduction or any other filter that look are based on neighbouring pixels, any math operation including NaN will result in a NaN. So what you see is expected. 

What software did you use to produce that EXR? It should not have NaNs.

As a workaround, you can apply a procedural texture and that should turn all NaN values into (0,0,0)

[fritz]

Hi Gabe, thanks for the workaround! im using modo and this is happening on some complex textured objects, maybe im doing something out of range or quiting the render to soon, anyway that is a perfect solution thanks again!😁