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This page provides information on the V-Ray UVW Placement Texture.
Overview
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The V-Ray UVW Placement texture operates as a custom mapping source that can be shared between different textures. It is equipped with randomization parameters that allow randomizing the texture placement based on different IDs, names, etc. V-Ray UVW Placement texture also has additional controls for the amount and specifics of the randomization.
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Placement Parameters
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Randomization Parameters
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Example
The Stochastic Tiling parameter can help you achieve a non-repeatable look by randomizing the texture mapping in each tile. In this example, we show how to render a brick wall with the help of Stochastic Tiling.
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Brick walls are usually built in horizontal rolls so we remove the random rotation caused by the UV Rotation by setting it to 0. We enable Stochastic Tiling in the UVW Placement and set Tile Blend to 0.01. Default interval values of U and V offset from 0 to 1 mean a full tile size can be used as offset. The randomized look can be fine tuned with adjusting the step value for the randomization. Picking correct offset Steps will result in aligning the brick rolls in adjacent tiles. See the results with various steps in the rendered images below.
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