Unlike the volumetric modes, surface modes have no dedicated shader they use the material applied to the Volume Grid. The surface modes can be used for some interesting fire-related effects, like freezing flame or cartoon-style smoke.
Cinema 4D materials can't be used to shade volumetrics, so their shading is described in the Fire , Smoke Color and Smoke Opacity rollouts. The volumetric modes are used for fire and smoke. The Volume Grid is able to operate in multiple rendering modes that can be divided into two main branches: volumetric and surfaces (Isosurface, Mesh, Ocean Mesh and Cap Mesh). All parameters necessary for rendering a Fire / Smoke simulation can be found under the Rendering roll-out and its sub-rollouts. Overviewįor convenience, the shading and rendering of Volumetric effects (Render Mode: Volumetric, Volumetric Geometry, and Volumetric Heat Haze) are handled by the built-in Volumetric shader of the V-Ray Volume Grid. This page provides general information about the Rendering tab of the V-Ray Volumetric Grid.
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