This page provides details about the Atmospheric Effects Render Element and how it is used in compositing.
Overview
The Atmospheric Effects Render Element stores only atmospheric or volumetric participating media such as fog or Aerial Perspective. This render element can then be used to enhance or color-correct just the atmospheric component of the image during the compositing process.
When atmospheric effects or fog is included in a scene, they will render into the Beauty (RGB color) channel, and should also be output as the atmosphere channel for compositing use.
To use render elements, select from the Available render elements column and click the Add button to add the passes you wish to generate at render time. When you render the scene, the added render elements listed in the column on the right, will also render, which can be viewed from the VFB window's channel drop-down menu.
For more information on the parameters on this dialog, see the Render Elements tab page.
Attributes
The parameters for this render element appear in the Attribute Editor under Extra V-Ray Attributes.
Enable – When enabled, the render element appears in the V-Ray Virtual Frame Buffer.
Deep output – Specifies whether to include this render element in deep images.
Filename suffix – The text added to the end of the rendered file, when saved as a separate file (e.g. myrender.atmosphere.vrimg).
Apply color mapping – Applies the color mapping options specified in the Color mapping rollout of the VRay tab in the Render Settings window to this render element. This option is enabled by default.
Denoise – Enables the render element's denoising, provided the Denoiser render element is present.
Common Uses
The Atmospheric Effects Render Element is useful for changing the appearance of the atmosphere and volumetric effects in a rendered image using compositing or image editing software. Below is an example of its use.
Color of atmosphere changed and intensity increased
Compositing Formula
vrayRE_Atmospheric_Effects + Beauty = Final Image
