Mesh Based Input

Last update: Thu Feb 26 2026 00:00:00 GMT+0000 (Coordinated Universal Time)

Mesh Based Input are texture provided by the engine of Substance 3D Painter extracted from the mesh inside the current project. These textures can be used to create advanced effects based on the mesh topology.

NOTE

These Mesh information are based on the topology itself and don’t take into account the Mesh map (baked textures).

The input provided by the engine is a 32 bits floating point texture which will be downscaled/clamped to the value of the input in the Substance graph.

Mesh Information

Identifier

Usage

Description

Position (RGB)

mesh_position

meshPosition

Retrieve a texture containing the vertex position.

World Space Normal (RGB)

mesh_world_space_normal

meshNormalWS

Retrieve a texture containing the vertex normal in world space.

World Space Tangent (RGB)

mesh_world_space_tangent

meshTangentWS

Retrieve a texture containing the vertex tangent in world space.

World Space Bitangent (RGB)

mesh_world_space_bitangent

meshBitangentWS

Retrieve a texture containing the vertex bi-tangent (bi-normal) in world space.

Texel Size (Grayscale)

mesh_texel_size

meshTexelSize

Retrieve a texture containing the texel size (difference between pixel density and mesh UV).

UV Mask (Grayscale)

mesh_uv_mask

meshUVMask

Retrieve a texture as black (outside) and white (inside) mask of the mesh UV islands.

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