Path tracer noise

Hi everyone! How to reduce noise without denoiser. I use higher parameters of samples than education videos. But result much worse. Denoiser result is so bad and without denoiser cant normally reduce it in DaVinci



If you don’t use the denoiser, you will need to highly increase your number of samples.

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Hi. In my case, increasing Samples Per Pixel, doesn´t change anything. The amount of noise is the same. I used 4096, and it´s exactly the same result.
How to increase quality without use Denoiser? Because, denoiser, usually changes the details…

same problem for me… i used 16000 samples and the result is the same when i use 4096!!! did you find a solution???

Hello! Everyone. Did anyone find a solution for this? I am facing the same issue and whenever I increase spatial samples in Anti-Aliasing under Movie Render Queue settings my Unreal Engine crashes because GPU Memory got full.

For anyone experiencing the same problem, I highly recommend using more lights. The main cause of the noise is the lack of light rays in certain parts of the scene. You can use rectangular lights to fill in the noisy areas with a low intensity. You might lose some contrast, but you can easily bring it back during compositing.

If you’re not using a denoiser, increasing the samples per pixel alone won’t be enough. You’ll also need to raise the max bounce setting and use at least 64 spatial samples. However, you can lower the temporal sample count to 4 or 8 if your camera isn’t moving much or if there are no moving objects in the scene.