Why is there noticeable noise in the output still frames?
The following reasons can result in this effect:
The driver version is too low.
It is recommended to update the driver to a later version: How to view and upgrade graphics card driver?
Noise is relatively obvious in certain materials.
You can check the parameters of the abnormal material, if the normal/roughness/specular parameter is very high, or if there is a light source near the current material or the ambient light is relatively strong, noise may appear; it is recommended to reduce the normal/roughness/specular parameter a little.
Noise caused by insufficient light in the scene.
This is more likely to occur in indoor scenes, especially in models with small windows/rooms with large depths. Using the default sky parameters may result in noise due to insufficient light to illuminate the scene; it is recommended to switch off the dynamic option or reduce the exposure and add other light sources to bring light into the scene.
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