---
title: "Renderer"
canonical: "https://documentation.chaos.com/space/VREVIT/161611958/Renderer"
format: markdown
---
This page provides details on the Renderer settings in V-Ray for Revit.

## **Overview**

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The Renderer tab provides convenient access to common Rendering functions such as choosing the render devices or sampler. You are also able to choose from several Quality presets of the Geometry Tessellation, the GI primary and secondary engine and adjust the Interactive renderer's settings, as well as choose the auto-save file path for your renders.

> Macro (ui-text-box)
> 
> When rendering in Interactive mode in some specific cases and using the native Revit Undo/Redo command, the rendering stops and the Undo/Redo command has a priority.

## **Parameters**

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### **Global Illumination**

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### **Interactive Settings**

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### **Optimizations**

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### **Geometry Tessellation**

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### Auto-Save

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## > Macro (anchor)

**Hybrid Rendering with CPUs and the CUDA Engine**

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Starting in version 3.60, V-Ray GPU can perform hybrid rendering with the CUDA engine utilizing both the CPU and NVIDIA GPUs. V-Ray can now execute the CUDA source on the CPU, as though the CPU was another CUDA device. To enable the hybrid rendering mode, simply enable the **C++/CPU** device from the list of CUDA devices.

The hybrid rendering mode does not require any special drivers. Furthermore, you can use the CPU as a CUDA device even if you don't have an NVIDIA GPU and/or NVIDIA drivers installed. Meaning, this mode can be used on computers that don't even have GPUs. The hybrid render engine running on a CPU supports the same features as the regular V-Ray GPU CUDA engine.

> ℹ️ Interactive GPU OpenCL rendering mode is currently not supported.

> ℹ️ When rendering an unsupported feature with V-Ray GPU, a warning note appears in the VFB's Log tab.