UVAtlas: downscale charts to fit in texture #598
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avoid infinite loop trying to build atlases
* ensure charts can't be larger than texture size (taking padding into account) by downscaling them * use downscaled charts to fill atlases * apply downscale factor when computing final UV coordinates
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Description
Fix infinite loop when charts are larger than final texture size.
Fix #395
Features list
Implementation remarks
Apply downscale factor to fit larger charts into the texture, and use it when filling atlases and computing final UV textures.