This page provides information about the V-Ray Render component in V-Ray for Grasshopper.


Overview

V-Ray Renderer is the main V-Ray component. It builds the scene and initiates the rendering process. Right-click to Start or Stop the render process or to show the V-Ray Frame Buffer window.
Note that if you close or minimize the V-Ray Frame Buffer window while rendering, you can restore it via the Show Frame Buffer option.




Input Parameters

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) – 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.

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 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

Scene (Generic Data) – This is the V-Ray scene output. It can be connected to a V-Ray Exporter component in order to export the scene to a disk or V-Ray Render in Project component to transfer all scene data to Rhino.

Chaos Cloud is now integrated within V-Ray for Grasshopper. Right-click the V-Ray Render component to find the new option Render on the Cloud action. Note that having a Timeline component connected always exports an animation.



Context Menu

Right-click on the V-Ray Render component to open.

Render – Starts the rendering process.

Render Interactive – Starts Interactive rendering.

Render Animation – Renders animation.

Render on the Cloud – Automatically exports a .vrscene and submits it to Chaos Cloud for rendering. Note that animations are always included when present.

Stop –  Stops the rendering process. 

Show Frame Buffer – Shows the V-Ray Frame Buffer.

Use default light – Adds a directional light with default parameter values if no other light exists in the scene.


Right-click on the component to see more options.