This warning from indicates that your scene is reaching the memory (VRAM) limit of your graphics card . Because the GPU lacks enough space to handle the full complexity of the scene, V-Ray reduces the number of samples processed per thread to avoid a complete crash, which results in longer render times. Common Causes & Fixes
// Usage Example int main() RenderEngine engine;
Render with vray memory error - Extensions - SketchUp Community This warning from indicates that your scene is
Export your scene to a .vrscene file and render it with V-Ray Standalone to bypass the memory overhead of the host application (like 3ds Max or Maya). Adjust Render Settings
Set a target noise threshold (e.g., 0.01 for high quality, 0.005 for production). Adjust Render Settings Set a target noise threshold (e
It is noteworthy that this warning on the same machine. Modern CPU renderers can utilize system RAM (e.g., 32 GB, 64 GB, or more) and often have more robust memory management. When you see the warning with the GPU, it is almost always because VRAM is the bottleneck.
: In rendering, "samples" often refer to the number of times the rendering algorithm checks for color information (or other attributes) per pixel. This is particularly relevant in rendering techniques that rely on sampling, such as ray tracing or path tracing. Increasing the number of samples can lead to more accurate and smoother images but at the cost of increased computation time. When you see the warning with the GPU,
In V-Ray 6.1+, enable Compressed Texture Mode to significantly reduce memory usage without sacrificing quality.
To prevent a total crash or an "Out of Memory" error, V-Ray automatically scales back the amount of work (samples) it assigns to each thread to fit the scene into your remaining VRAM. While the scene will likely still render, it will be significantly slower because the hardware is not operating at full efficiency. How to resolve it
Instead of using a massive "Total Samples" count, use .
When you start a render, the engine attempts to allocate enough memory to process a high number of samples simultaneously for maximum speed. If the scene—including geometry, textures, and buffers—already occupies most of your available VRAM, the engine must reduce the "samples per thread" to fit within the remaining space.