Warning Num Samples Per Thread Reduced To 32768 Rendering Might Be Slower Updated Site

These features generate massive amounts of geometry at render time.

If you’ve been working with real-time graphics, CPU-based path tracing, or high-performance computation libraries (such as Intel’s Embree, OSPRay, or certain video encoding frameworks), you might have encountered this yellow warning in your console: These features generate massive amounts of geometry at

If your renders finish on time and you don’t see stuttering, you can safely ignore the warning. It’s informational, not an error. Many production render farms see this message constantly without action. CPU-based path tracing

This is the easiest fix. Older versions of Embree, OSPRay, or your graphics driver may have overly conservative limits. or certain video encoding frameworks)

Other software (like Substance Painter or Nuke) may be hogging GPU resources.

In the world of high-end rendering—specifically when working with engines like