To resolve this and restore rendering speed, follow these optimization steps: Reduce Texture Sizes
Older GPU generations (like the Pascal or Maxwell series) hit these limits much faster than newer RTX cards with dedicated RT cores. How to Fix the Warning 1. Enable Adaptive Sampling
When a path-tracing engine renders an image, it breaks the work into "samples." To maximize the power of your GPU, the engine tries to assign a specific number of samples to each "thread" (the tiny processing units on your graphics card).
Switch texture settings to On-demand Mip-mapping or use lower-resolution textures.
Are you seeing this warning while rendering a specific scene, or does it happen even with simple projects?
When a scene is extremely "heavy," the GPU takes longer to calculate each sample. The engine sees this delay and preemptively reduces the sample-per-thread count to avoid a system hang.
The reduction of samples per thread to 32768 can have several implications on rendering performance:
: The scene (geometry, textures, and light cache) is larger than your GPU's total video memory. High Resolution
To avoid encountering this warning in the future, follow these best practices:
If you're looking for more information on optimizing rendering performance or addressing specific issues related to this warning, check out the following resources:
Warning Num Samples Per Thread Reduced To 32768 Rendering Might Be Slower
To resolve this and restore rendering speed, follow these optimization steps: Reduce Texture Sizes
Older GPU generations (like the Pascal or Maxwell series) hit these limits much faster than newer RTX cards with dedicated RT cores. How to Fix the Warning 1. Enable Adaptive Sampling
When a path-tracing engine renders an image, it breaks the work into "samples." To maximize the power of your GPU, the engine tries to assign a specific number of samples to each "thread" (the tiny processing units on your graphics card). To resolve this and restore rendering speed, follow
Switch texture settings to On-demand Mip-mapping or use lower-resolution textures.
Are you seeing this warning while rendering a specific scene, or does it happen even with simple projects? Switch texture settings to On-demand Mip-mapping or use
When a scene is extremely "heavy," the GPU takes longer to calculate each sample. The engine sees this delay and preemptively reduces the sample-per-thread count to avoid a system hang.
The reduction of samples per thread to 32768 can have several implications on rendering performance: The engine sees this delay and preemptively reduces
: The scene (geometry, textures, and light cache) is larger than your GPU's total video memory. High Resolution
To avoid encountering this warning in the future, follow these best practices:
If you're looking for more information on optimizing rendering performance or addressing specific issues related to this warning, check out the following resources: