This page gives an overview of the Reflection Render Elements and explains how they are used for compositing. Below is some basic information on the six reflection passes that can be rendered out through V-Ray. Specific usage for each of these elements can be found on their own details pages, under this section.
The Reflection Render Elements store reflection information calculated from the materials' reflection values in the scene. Surfaces with no reflection values set in their material(s) will contain no information in the render pass and therefore render as black.
The Reflection Render Elements include:
- Stores reflection information calculated from the materials' reflection value in the scene. It is the product of Raw Reflection (VRayRawReflection) and Reflection Filter (VRayReflectionFilter).
- Raw Reflection (VRayRawReflection) – Gives the full reflection data of objects reflecting in the scene, at the reflection's maximum possible intensity.
These three render elements are designed to be used together or separately to adjust the overall reflection in the scene.
In addition, several other render elements are available for adjusting reflection in a composite. These render elements can be both used for texture baking when there is a need to recreate a shader in a real-time engine, or to do relighting in a compositing package:
- Returns a grayscale image that corresponds to the value in the Reflection Glossiness of materials in the scene. It can be both used for texture baking when there is a need to recreate a shader in a real-time engine, or to do relighting in a compositing package.
A grayscale image that corresponds to the value in the Highlight Glossiness of the materials in the scene.
A grayscale image that corresponds to the value in the Fresnel IOR of the materials in the scene.
Render Element Examples
Reflection render elements can be both added and subtracted from existing reflections within the scene.
- To enable changes to the reflectivity of specific objects or materials during the compositing phase, use Matte Render Elements to isolate and select the objects and materials.