Warning Num Samples Per Thread Reduced To 32768 Rendering Might Be Slower [top] Info

Feature Specification: Adaptive Sample Throttling & User Notification

✅ 6. Disable Persistent Data (if available)

• Persistent data keeps scene data across frames (for animations), potentially increasing per‑thread memory.
• Disabling it forces fresh buffers but can reduce the warning in some engines.

4. Which Software/Engines Commonly Show This?

| Software/Renderer | How Warning Appears | |------------------|----------------------| | Blender (Cycles) | In system console or status log when using GPU rendering with high tile sizes or sample counts. | | LuxCoreRender | Visible in console when OpenCL device limits are hit. | | Mitsuba 3 | Logs as info/warning, especially with large sampler configurations. | | Custom CUDA/Optix renderers | Can be user-defined; often hardcoded limit to 32768 for safety. | | V-Ray GPU | Less common, but equivalent "per-thread sample buffer reduced" message may appear. |

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6. Advanced: Technical Deep Dive

For developers or power users who want to understand the internal mechanism: Persistent data keeps scene data across frames (for