Ask BlackDragonIV. He's Badspot's alt.
I use a redscreen ingame, plant the brick, paint it white, screenshot it, make it transparent, edit/resize/blackandwhite, and then save them as .PNGIt's pretty tricky to take a screenshot from the right angle though.
Open file, angle it, snapshot, and trans it
In the modeling program or a image making program?
I do mine in Blender.
What exactly would be the correct angle for the brick in blender?
For a cuboid brick orthographic X: 60.5 Y: 0 Z: 45 is close but not exact. For special bricks it varies.