I got this mesh here with many pixels for RGB display:
how can I effectively colour each pixel without making an object for every pixel, Surface UI is apparently slow for something im trying + in this case i have to try with the brick colour
How to colour specific triangles/faces of a mesh instead of splitting each face into a seperate mesh
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Go into edit mode and box select the faces you want to change the color. The. Press p and select the selection tab. Go to back to object mode and convert to a mesh.
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the RGB colours of the pixels are meant to be edited by a script
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Sorry looks like you are working in blender. 