Paint mode engine is slow it needs speed up:
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Fill tool is painfully slow
Brushes are slow
Switch on/off layer is slow
Paint mode could be multithreaded ? Fill tool is using only one core.
Better AO bake
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3DC AO is slow and it doesn't give good results, we need raytraced AO bake with support meshes which have triangles (from boolean operations)
Paint layer/UV texture view better dock
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Generally 3DC is hard to dock,windows dont snap well, close button and scroll bar are too tiny
Texture UV view needs to be really nice dockable
More and better retopo tools
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Merge materials layers on export
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Every material gets own texture but on export there must be an option to merge them into one texture,
now if one item has materials wood,metal,glass, itp each of will be exported as separate texture but it shouldnt because it's all for one object
Pen and materials folders
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Layers blend list - scroolbar too thin, in fact there should be no scrollbar, most LCD have more than enough place to display all blend modes
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Make transparency map
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Draw transparency maps with 3DC paint tools,transparency should be displayed in paint window