RenderKit / oidn

Intel® Open Image Denoise library
https://www.openimagedenoise.org/
Apache License 2.0
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Blurry textures after denoising #50

Closed pablo-dra closed 2 years ago

pablo-dra commented 4 years ago

Hi there! I wanted to comment that I'm having kind of the same problem described in the "Loosing texture details since V1.0".

I've used "Blackman-Harris" pixel filter set up at 1.00 px. As you can see after the denoise process the image gets really blurry. The "A" image is when I first noticed it and I thought that it was because the object was quite far from the camera, and there are not too much information/pixels to determine how it should look. A

However, at close-ups, it also blurs the image in certain areas while in others don't. Denoiser Luxcore Noisy - Bidir

I don't know if it is something that I might not be set up correctly in my scene or maybe something that the denoiser can't handle yet.

I've been using blender 2.81 and Luxcore for these renders.

Regards, saludos Pablo

jmengintel commented 4 years ago

Hi Pablo,

thank you for your report. We are currently working to improve this. Can you provide us with your set of input images by any chance?

pablo-dra commented 4 years ago

Hi Jomeng, Thanks for your reply. Here you will find a link with the free 1024 px textures I used.

https://www.textures.com/download/pbr0145/133180?q=carbon fiber

I can't attach them here.

I've noticed a better behavior of the denoiser after doing some tests with more samples (I'm testing with 2000 samples now) but they are up to a point where it is almost "unnecessary" to use a denoiser.

Regards, saludos Pablo

arun54321 commented 4 years ago

Even on very low noise renders, I lose fabric details when using OIDN. 3d software: blender render: cycles OIDN: v1.2

atafra commented 4 years ago

Even on very low noise renders, I lose fabric details when using OIDN. 3d software: blender render: cycles OIDN: v1.2

Are you using the albedo and normal AOVs for denoising? Could you please share an example image?