Overview

Attributes are per-vertex data. Base values are encoded in the mesh and processed per-instance using the instance shader and the material’s vertex shader.

In/outs

Some attributes are passed to the fragment stage, where they are being used by the material’s fragment and light shaders.

• vertexPos
• vertexColor
• vertexTexCoord
• vertexOverlay
• vertexLight
• vertexNormal
• vertexTangent

Note

In the geometry stage, those attributes are grouped in the interface blocks clrwl_in[3] and clrwl_out.
Use the clrwl_setVertexOut function to set the correct values before emitting a vertex.

Remappings

Danger

Only the compatibility profile is supported.

Iris Attributes	Colorwheel Values
gl_Vertex	vertexPos
gl_Color	vertexColor
gl_MultiTexCoord0	vertexTexCoord
gl_MultiTexCoord1 / gl_MultiTexCoord2	vertexLight
gl_Normal	vertexNormal
at_tangent	vertexTangent
at_midBlock	vertexMidMesh
mc_midTexCoord	vertexMidTexCoord
mc_Entity	vec2(-1, -1)