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How to set different subset of one mesh?

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In directX, I use cylinder to render tree's branches, now I want to use two textures to map different branches.For example, use tex1 to map the 2nd level branch and use tex2 to map the other branches. My idea is : put the 2nd level branch into subset0 and the other to subset1. For a regular object,like cube, it's easy to put different faces to different subset. The problem I meet is: how to differentiate the triangle faces are the 2nd level branch's?

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This topic is 3115 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

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