bump/normal map get weak when denoiser enabled

[baoxiaohe_developer]

Hello,
When I enable denoiser, I get a weak bump/normal map effect, which will be worse when I move camera farther.
If denoiser is disabled, the bump/normal map is fine, but there is much noise, even I set Noise threshold to zero.
Is there any way to fix this?
Thanks.

[Alexander.Atanasov]

Hi baoxiaohe_developer,

The only current way, using the denoiser, is to render with high Sample values(1000+, scene dependent). The Nvidia AI denoiser tends to blur textures with very high frequency as it considers them as noise.

Best regards,
Alexander