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Blender 2.8: Support Auto-Smooth in Edit-Mesh and allocate loop_normals in MeshRenderData instead of CustomData

Authored by Germano Cavalcante (mano-wii) on Nov 1 2017, 1:44 PM.



This is an attempt to solve the Task T51604

You can not allocate arrays in bmesh's CustomData. So I decided to remove the use of CustomData to allocate the loop_normals in both EditMesh and Mesh.

Since split normals is a slow operation, a special attention must be paid when it is requested in the tangent calculation (BKE_mesh_calc_loop_tangent_ex). Before it was stored in CustomData. Now it is recalculated.

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rB Blender