3D painting

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3D painting

David Faught
I noticed in one of your videos that it appears you are trying to do
some direct 3D painting.  I hope your developer(s) are having fun,
because it's not a trivial thing to do well.  Here are some
interesting related references.  The first two deal with improved ways
to map a dynamically painted texture to an object's texture
coordinates, since the trivial way used by third reference isn't
really very good.

John C. Hart paper

Takeo Igarachi paper

C source code for 3D painting

There are some other interesting research papers on using texture
"decals" on 3D objects, which I can't seem to find right now.