---
title: "V-Ray Render"
canonical: "https://documentation.chaos.com/space/VRHINO/116130344/V-Ray%20Render"
format: markdown
---
This page provides information about the V-Ray Render component in V-Ray for Grasshopper.


## **Overview**

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## **Input Parameters**

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**Engine **(*Integer*)*** ***– Switches between CPU, CUDA, and RTX render engines. Make sure to specify the devices to be used by CUDA and RTX engines. You can specify them from V-Ray's GPU Device Selection tool (**V-Ray** > **Tools** > **GPU Device Selection**). Note that the RTX engine can only run on GPU devices with Compute Capability 5.2 or higher.

**Sampler **(*Integer*)** **– Switches between Progressive and Bucket sampling methods. ** **

**Quality **(*Integer*) – Controls the rendered image quality. The option only affects the Production rendering. 

**Output Img **(*Text*)  – Specifies the output image file location and type. 

**Output Res **(*Integer*)** **– <span style="color: #172b4d">Controls the resolution of the output image. A pair of integers for width and height is expected as input. Default size is set to 960 by 540 pixels.</span>

**Camera** (*Generic Data*)** **– Expects a V-Ray Camera input. If there is no input, the currently active camera position is used as render view. Make sure that there is a single input for this parameter.

**Light ***(Generic Data) *– Expects V-Ray Light input. Multiple inputs are accepted. If there is no input, a simple pre-defined light is created.

**V Geo** (*Generic Data*)* *– Expects a V-Ray Geometries input. If there is no input, a simple background color/gradient image is rendered. The input might have to be Flattened depending on the input data.

**Env ***(Generic Data) – *Expects a single V-Ray Environment input.

**Timeline** (*Generic Data*) – Expects the input of a V-Ray Timeline component. Initiating the render process renders a number of consecutive frames based on the Timeline’s Frames Count parameter. Note: The Grasshopper definition is evaluated for each frame. 

**Elements** (*Generic Data*) – Input slot for V-Ray Render Elements. Currently, a [V-Ray Element Lighting Analysis](https://docs-chaos.atlassian.net/wiki/spaces/VRHINO/pages/116130369) can be connected here. 

**Update Fx *****(Integer) ***– Controls the regularity of post effects updates during progressive rendering - Denoiser, Lends Effects, Lighting Analysis. It sets the approximate percentage of render time that is allotted to the effects evaluation. Larger values cause the effect to be updated more frequently. 100% of maximum frequency causes updates as often as possible, whereas 0% of maximum frequency disables progressive updates. If set to 0%, effects are applied after the render process is finished (but not if it is manually canceled).



## **Output Parameters**

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