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This page provides information about the Grid tab of the V-Ray Volumetric Grid.

Overview


The Grid tab allows you to render a volume without any loaded cache from the Input rollout. Without any cache data, you can still map the smoke opacity and color with textures, as well as the fire color and opacity. You can also create opacity for the smoke or fire by offsetting their opacity curves below zero, so that the empty voxels still produce visible density.


Parameters


Lock Voxel Count  – When enabled, changing the Cell Size will adjust the simulator size and preserve the original grid resolution. When disabled, changing the Cell Size will adjust the grid resolution and preserve the simulator size.

Cell Size –  The size of a single voxel, in Units. When Lock Voxel Count is disabled, these values change the number of cells. When Lock Voxel Count is enabled, these values change the size of the grid without changing the number of cells.

– Specifies the number of voxels along the X axis.

– Specifies the number of voxels along the Y axis.

– Specifies the number of voxels along the Z axis.

Increase Resolution – Increases the number of voxels along each axis, thus decreasing the cell size.

Decrease Resolution – Decreases the number of voxles along each axis, thus increasing the cell size