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Thanks! Part of why I like oils so much is that they can make painting almost like sculpting because of the textural possibilities: )

you can build up with acrylic as well, and it dries fast. Mix acrylic paint with modeling paste for great impasto. Acrylics are also a very good glue: if you like sculptural effects, try fabric soaked with acrylic mixture and modeling paste. You can even attack rocks securely to your canvas (for heavy stuff, I would recommend using panel rather than canvas).
A anecdote I like retelling is that Arik Brauer during his student days at the Academy in Vienna would sneak up to fellow students heavy impasto oil paintings and using a needle, would "milk" them for a few drops of paint. His own work was done with thin glazes in old master fashion.
Impasto oil paintings take forever to dry.
btw - I don't think this is nsfw. You should see what's at the Vatikan, lol