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Superpaint Tool

Superpaint was designed to overcome the default Paint tool's limitations. There's a bigger variety of decals (you can choose any decal you like as long as its material uses a supported shader like VertexLitGeneric or DecalModulate) and you can resize the decals before placing them.

Additionally, the tool is setup in a way that allows you to preview how the decal will be applied before you actually paint it.

• superpaint_mat - The material to use. Can be any material with a VertexLitGeneric or a DecalModulate shader.
  
• superpaint_width - Width of the decal. Can be adjusted in the tool menu.
  
• superpaint_height - Height of the decal. Can be adjusted in the tool menu.
  
• superpaint_maxpaints - Max decals (placed by this tool) per entity. Default is 32.

• Decals are not permanent - if too many decals are applied, the first ones will eventually be cleared to make way for the newer ones. I cannot fix this unless Rubat adds this request[github.com]
  
• Decals cannot be rotated manually - Again, some Lua API additions need to be added for this to become a feature in the tool.
  
• Decals on dupes are not oriented properly - This can pretty much be bunched up with the above issue, but it should be able to be avoided. You can either try to spawn the dupe at the proper angles or use AdvDupe 2 which should spawn the dupe at the original correct angles.
  
• Decals become transparent when a flashlight/lamp is shined upon them - This is a Source engine bug, can't do anything about it.

[ko-fi.com]