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This page provides an overview of the atmospheric effects available in V-Ray for Houdini.

Table of Contents

Overview

The atmospheric effects in V-Ray simulate fog and participating media for a number of image effects. These effects also include  V-RayToon, a cartoon-styled non-photorealistic effect that enables toon shading as a render effect throughout the scene, and Volumetric Grid rendering that works with grid based cache formats to create effects such as dynamic plumes of smoke.

 

 

 UI Paths:

||mat Network|| > V-Ray > Effect

 

||shop Network|| > V-Ray Material node > V-Ray > Effect

 

 

 

Atmospheric Effects

True atmospheric effects are applied throughout the entire scene as viewed from the viewport. While parameters give limited control over the appearance of the effect, atmospheric effects render faster than volumetric effects.

  • Fog – A fog effect throughout the scene, with control through maps and distance settings.
  • Fog Gizmo – A gizmo used with V-Ray Fog.
  • Toon – A very simple atmospheric plugin that produces cartoon-style outlines on specific objects in the scene. 

 

Volumetric Effects

Volumetric effects use a volume to contain the atmospheric effect. While volumetric effects offer a great deal of control over the placement of the effect, they take longer to render.

  • Volumetric Grid – Imports grid-based volumetric simulation data from external programs to create fire, smoke, and fluid simulations within V-Ray for Houdini.