Alphas, Masking, Extract, Make 3D, crop and fill Make Polymesh3D,
subdivide, and
Ctrl Alt paint to reverse the alpha
Ctrl drag is Plus Mask
Ctrl Alt drag is Minus Mask ... Ctrl click on the canvas = reverse the mask:
2 tips on brush control: If you hover over a tool in EDIT and hit S:
Space Bar access all this:
Onwards ... Ctrl shift drag = hide ... Ctrl Shift hit canvas = unhide:
Extract Go to the SubTool palette under Tool; hit Extract
(A fast way to make clothing or other skin objects from a mesh)
Sculpting with an alpha ... Using clay ....
Ctrl click on canvas to reverse and sculpt with clay tubes
Standard brush
You can also make an object starting with a 3D tool
Make a file in Photoshop and save as a jpeg
Hit Make 3D
You can change the depth, inverse, etc:
Another option is to crop and fill your document background with an alpha:
Note – this shows the size of the cropped document:
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