Poser

Mesh made to work with action poses.

Under "Simulation Settings", select all of "Object vertex against..." and "cloth se …

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Mesh made to work with action poses.

Under "Simulation Settings", select all of "Object vertex against..." and "cloth self-collision".
Under "Coth Collision Objects" select actors from Roxies waist downwards, except feets (hint: select all Roxie first, then tick "Ignore head", "...hand", "...feet", go back to selection and switch off the rest manually).

Also under "Simulation Settings" set "Collision Offset" to 0.200 and "Collision Depth" to 0.500.

The trousers have vertex-groups predefined (ending with "-vt"). There are also predefined dynamic groups. You may experiment with them to find the values for your pose.

Texturing: The prop has only a simple shader. You may attach seamless images as you like, because the model is well UV-mapped.

If Poser 11 is used to render, use subdivision to smooth the fold Poser has generated. « Less