*) RUN the file called " vDenoise_3.40.02.ms" It works with VRImage files and Multi-layer EXR files, best written directly from the raw file output of V-Ray (but provided the elements are there, any exr will in fact do.), with auto-numbering detection. It's a macroscript I wrote to help with sequences' post-process denoising.
#Nuke denoise windows#
In V-Ray, you can actually output hundreds of render elements, each with denoise selected, and they will all represent their proper contribution of the denoised image.V-Ray Next users ought to run vdenoise.exe (from your v-ray installation folder, "bin" subfolder) from windows explorer, so to get a nice UI, like so: In this example, we show a complex scene with a large number of render elements, including all the standard passes as well as several light selects. And you don’t get artifacts such as edge issues. You may still see some level of noise in each render element, but when you recomposite the image back to beauty, the image integrity is preserved. V-Ray considers all the render elements when denoising and each render element only represents its portion of the denoised image. What's interesting is that V-Ray does not denoise each render element separately. What this means is that if you select the VRayDenoiser render element, each of the other render elements that have the denoiser option chosen will also be denoised. In V-Ray Next, users will notice that nearly every render element has an option called denoise. Those differences can result in swimming patterns as you go from frame to frame. As each image is different, the denoising of each image will also be different. If you are rendering an animation, this means that every image will be denoised separately. When you denoise an image, the algorithm tries to detect noise and smooth out part of that image through filtering and blurring, while still preserving edge integrity. Let me explain how the new render element denoiser in V-Ray Next eliminates this problem by maintaining the correct contribution of the complete denoised image for each render element. If each render element is denoised on its own, then your recomposite back to a beauty image could have a lot of artifacts. That would mean that all the render elements would also need to be denoised. Now imagine that you want to use the denoised image as the beauty. One issue that can come up is that each render element has to represent an exact contribution of the original beauty image or artifacts can appear, especially near edges. The challenge then becomes to recomposite the beauty image using the individual elements. It’s common to split out many aspects of the render into different parts like specular, reflection, reflection filter, diffuse filter, lighting, and global illumination. In the visual effects world, artists will output a large number of render elements to allow for adjustments in compositing. But it does have some limitations that keep it from being the best solution for final renderings. Because it gives users a near real-time denoised solution, it’s a great option for lighting and scene composition. In an earlier blog post, we explained the pros and cons of the new NVIDIA AI Denoiser that’s in V-Ray Next. And rarely does one solution fit all cases. Denoising is a relatively complex problem.
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