- Short cut 'D' changed meaning: from drag mode to paint mode, drag mode icon removed, but still can use space bar to invoke drag mode.
- Brush painter directly paint on part deforming map, use shift key plus mouse wheel to change the brush size, also use shift key to change paint mode(Pull/Push).
Besides adding the PBR material manager, this commit hide some unnecessary features such as toggle wireframes and toggle normal smooth.
Add a regenerate button to indicate mesh is generating by showing a spiner, user can click this button to regenerate if the final result is not good.
Please note that, we generate the texture map by default compared to before we only generate texture map when user export glTF result. Current uvunwrap library cann't handle bad mesh very well, so it will crash on the wires model.
huxingyi