If you have a compound model in which each component model has its own material or texture, re-generating UV has basic rule as follows. We will take Box UV Setting/X/Tiling (U, V)=(1.00, 1.00) as the mapping method as an example.
(When you do material assignment or texture mapping to individual faces in SketchUp, it generates a compound model with several material settings.)
When you have a single model with its faces mapped by one single image, and you apply the UV setting as describe above, the result will be as the illustrations.
Partial parts of one image are mapped to |
UV Setting: Box |
When you have a single model with its faces mapped by several images individually, and you apply the UV setting as describe above, the result will be as the illustrations.
Partial parts of two images are mapped to |
UV Setting: Box |
With the concept above, if you have a compound model with multiple textures, once you apply the UV settings, it will effect all the component individually with the setting, which is different from the traditional mapping method.
Partial parts of two images are mapped to |
UV Setting: Box |