VrayRawDiffuseFilter Edge issue

[inohide]

Hi,
Edges of VrayRawDiffuseFilter has difference between A and B. B is more rickety edges. VrayRawDiffuseFilter should be same.
A has Only VrayRawDiffuseFilter path.
B has VrayRawDiffuseFilter path and Denoiser path (Intel Open Image Denoise, Only Generate render elements mode)
Is this normal?

[vladimir_krastev]

Hi, thanks for posting. Artefacts are possible with denoising. If you only generate elements how do you get the denoised result? Where do you denoise you image?
Have you tried the Denoiser Tool and see if the images look the same?

[inohide]

I am trying Intel Open Image Denoise v2 externally. (Fusion Studio and Intel Denoise v2 plug-ins) Because V-Ray's Intel Denoise has much artifacts.

1. Rendering with RawDiffuseFilter and normals: Intel Denoise v2 doesn't work. It's because of Noise is different from (2.).
2. Rendering with Denoiser(Only generate mode): Denoiser generate albedo and bumpnormals paths. Intel Denoise v2 work! But much artifacts. It's because of Aliasing and albedo noise.

RGB of (2.) with RawDiffuseFilter amd Normals of (1.) is best result for me.

Intel Open Image Denoise v2 doesn't work some reasons. V-Ray's Denoiser render elements seems to be making a difference in RGB(Noise pattern or Aliasing).

Is this what you intended?

The RT filter has certain limitations regarding the supported input images.
Most notably, it cannot denoise images that were not rendered with ray tracing.
Another important limitation is related to anti-aliasing filters.
Most render ers use a high-quality pixel reconstruction filter instead of a trivial box filter to minimize aliasing artifacts (e.g. Gaussian, Blackman-Harris).
The RT filter does support such pixel filters but only if implemented with importance sampling.
Weighted pixel sampling (sometimes called splatting) introduces correlation between neighboring pixels,
which causes the denoising to fail (the noise will not be filtered), thus it is not supported.

[inohide]

I turned off Image filter in condition (1.) and Intel Denoise v2 worked....
It may affect others, but it seems to be the best approach so far.

Switched to GPU. Intel Denoise v2 worked with Image filter in condition (1.)
I am confused; is the CPU behaving normally?

Update:
My V-Ray is something wrong. I have tried resetting the render settings in V-Ray settings tab. Intel Denoise v2 worked with Image filter in condition (1.)
I use your tutorial project "Interior_Render_Settings_max2020". Looks like there was a problem with the old data. But Result is better without Image filter.