This page provides information on the VRayMaterialPreview utility node.
Overview
The VRayMaterialPreview is an utility node that allows the user to quickly preview a material that is being edited. To do that, connect the nodes like in the image below:
UI Path: ||Toolbar|| > V-Ray menu icon > Utilities > VRayMaterialPreview
Inputs
The VRayMaterailPreview node has three inputs:
Material – The material that will be previewed by the utility.
custom_geo – An optional input to load a custom geometry object for the preview when Geo is set to Custom.
custom_hdr – An optional input to load a custom HDR file when Lights is set to Dome and HDR is set to Custom.
Parameters
Format – Controls the resolution at which the preview of the material is rendered.
Lights – Specifies how to illuminate the sample geometry that the material will be applied to.
Dome – Image based illumination.
Sphere – A spherical light source.
Rect – Rectangular light source.
Rect Direct – A rectangular light source which uses direct light.
Direct – An infinitely small point light source which generates direct light.
HDR – When Lights is set to Dome this dropdown menu allows you to pick the environment in which the sample geometry is rendered.
Light Rotation – Allows you to rotate the HDR texture when Lights is set to Dome.
Light Color – Set the color of the lights. This option is accessible when a light other than Dome is selected.
Geo – Allows you to pick from a list of sample geometry objects to render in the material preview.
Geo Rotation – Rotates the geometry.
Cam Rotation – Rotates the preview camera.