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Cannot use nvidia denoiser in houdini19

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i need help finding the way to use nvidia denoiser in houdini19.

i have just updated to H19 and having issue finding the main menu Render ▸ Download NVIDIA OptiX Denoiser option as written in the SideFX page.


there's no option as you could see from the attached image.


due to this, because i cannot download the nvidia denoiser from Houdini itself, i tried to download manually based on 'Manual installation', and updated the houdini.env file under the user path.

however when i try to render an image using Karma with image filters 'nVidia Optix Denoiser' on, the following error code shows up and seems the final rendered image just comes out without the denoiser effect.

<b style='color: red;'>Error creating optix denoiser</b>
<b style='color: red;'>Unable to create denoise image filter plugin</b>

for GPU, im using NVIDIA GeForce RTX 2070 SUPER, and using NVIDIA driver ver.456.71.

weird thing is that i was able to use denoiser when i was using H18 with mantra.

please help me out with this issue... thank you in advance.


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