I'm trying to wrap my head around UVs recently. I can get a fairly decent generic unwrap going, but once I have to do something very specific, I'm kind of lost.
In this case, I would like to recreate UVs like the modifier "UVW Map" would in 3dsmax. Meaning to do a very basic unwrap, according to a predefined scaling.
So my question is: how would I go about recreating a Box unwrap, that always stays consistently in a 100x100x100 cm scaling like in this picture?
I haven't found a direct way, but you can define directions, to classify the primitives into specific sets, using the direction, where the angle to the normal of the primitive has the lowest value.
Now each primitive has its own class and you can project uvs onto each primitive depending on its class.
Here is a modification of an older (experimental) file, which should give similar results.
To anyone that's interested: I found a way using only nodes where I split up the mesh into its X, Y and Z components using "Labs Split Primitives by Normal", then using "UV texture" with "texture type: Face", merging the results and then transferring the UVs back onto the original mesh using "UV transfer".
Works like a charm and works fast for dense geo! Thanks for sharing Tip for anyone using this and finding it not working ("invalid data storage size for input value P" error message), delete detail attrib "P" if you have one
