Using the Vertex attribute
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Restarting ciname 4d and no other app's solves the issue.
I cannot find any info on the Blend (color) Object.
Could you please explain.Also I do not fully understand the materials using the Vertex attribute.
Regards,
Pim -
Referenced by
Dr. Sassi
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Hi Pim,
The Vertex Attribute Node takes the Vertex Map, either single channel or Color/alpha from the object. The key concept here is that every point of the object has an ID number; the tag then adds a single value (0-1) to it, or for the Color, even a four-channel value RGB-A. The colors or value of the Vertex maps can be painted or applied with Fields and other options. The Vertex Tag should always get a proper name. Leaving it by default can cause confusion, leading to unwanted results.
The Vertex Attribute Node takes those Point/Vertices values in and interpolates those over the surface. The lower the number of points, the less likely a pleasing result can be expected. Higher values might slow down the processing. Sometimes, baking the data can be beneficial.
The result is, to a certain degree, comparable between a shader and a texture and can be used to drive channels in the materials.
To know which Vertex Tag to use, the Node has an entry field for the name; dragging the tag into will work.
One key feature when using these for anything is that values should be provided in the way they are needed. In short, RGB is not always RGB, which sounds cryptic, but Linear and gamma-encoded values deliver a completely different result if interpreted wrongly.
Color Management is often ignored for these values, and the results might look surprising.More details are here:
https://help.maxon.net/c4d/2025/en-us/Default.htm#html/COM_REDSHIFT3D_REDSHIFT4C4D_NODES_CORE_VERTEXATTRIBUTELOOKUP.html?TocPath=The%2520Node%2520Editor%257CRedshift%2520Nodes%257CRedshift%2520Utility%2520Nodes%257CAttribute%2520Nodes%257CVertex%2520Attribute%257C_____0
(The Blend Color has its own thread, please don't mix! Thank you.)
All the best