[Blender 3.6] UV Packer
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brothermechanic
parent
80e3c58913
commit
78e31ea49c
18 changed files with 635 additions and 347 deletions
7
cg/blender/processing/README.md
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7
cg/blender/processing/README.md
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## Пакетная обработка всех объектов сцены в Blender
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Совместим как с прикладной версией блендера, так и с модульной (скомпилированой в качестве модуля).
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Подходит для запуска как в качестве модуля, так и внутри blender сцены.
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Производится запекание локальных координат, выделение острых граней, обработка затенения полигонов.
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7
cg/blender/processing/__init__.py
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7
cg/blender/processing/__init__.py
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# -*- coding: utf-8 -*-
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'''
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DESCRIPTION.
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Mesh processing for asset creation pipeline.
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Setup and prepare highpoly objects.
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Create and prepare lowpoly_objects.
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'''
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71
cg/blender/processing/highpoly_setup.py
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cg/blender/processing/highpoly_setup.py
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# -*- coding: utf-8 -*-
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# Copyright (C) 2023 Ilia Kurochkin <brothermechanic@gmail.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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'''
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DESCRIPTION.
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Basic mesh processing for asset pipeline.
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'''
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__version__ = '0.2'
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import logging
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import bpy
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import math
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logger = logging.getLogger(__name__)
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logging.basicConfig(level=logging.INFO)
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def setup_meshes(bobjs, cleanup=False, sharpness=False, shading=False):
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''' Setup raw meshes list after importing '''
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logger.info('Hightpoly meshes setup launched...')
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for bobj in bobjs:
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if not bobj.type == 'MESH':
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continue
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bpy.ops.object.select_all(action='DESELECT')
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bobj.select_set(state=True)
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bpy.context.view_layer.objects.active = bobj
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if cleanup:
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# remove doubles
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bpy.ops.object.mode_set(mode='EDIT')
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bpy.ops.mesh.select_all(action='SELECT')
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bpy.ops.mesh.remove_doubles(threshold=0.00001)
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bpy.ops.mesh.select_all(action='DESELECT')
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bpy.ops.mesh.select_mode(type='FACE')
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bpy.ops.mesh.select_interior_faces()
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bpy.ops.mesh.delete(type='FACE')
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bpy.ops.object.mode_set(mode='OBJECT')
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if sharpness:
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# set shaps and unwrap
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bpy.ops.object.mode_set(mode='EDIT')
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bpy.ops.mesh.select_all(action='DESELECT')
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bpy.ops.mesh.select_mode(type='EDGE')
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bpy.ops.mesh.edges_select_sharp(sharpness=math.radians(12))
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bpy.ops.mesh.mark_sharp()
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bpy.ops.mesh.select_all(action='SELECT')
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bpy.ops.uv.smart_project()
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bpy.ops.object.mode_set(mode='OBJECT')
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if shading:
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# fix shading
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bpy.ops.object.shade_smooth()
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bpy.context.view_layer.objects.active.data.use_auto_smooth = 1
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bpy.context.view_layer.objects.active.modifiers.new(type='DECIMATE', name='decimate')
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bpy.context.view_layer.objects.active.modifiers['decimate'].decimate_type = 'DISSOLVE'
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bpy.context.view_layer.objects.active.modifiers['decimate'].angle_limit = 0.00872665
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bpy.context.object.modifiers['decimate'].show_expanded = 0
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bpy.context.view_layer.objects.active.modifiers.new(type='TRIANGULATE', name='triangulate')
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bpy.context.object.modifiers['triangulate'].keep_custom_normals = 1
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bpy.context.object.modifiers['triangulate'].show_expanded = 0
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return logger.info('Hightpoly meshes setup finished!')
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140
cg/blender/processing/lowpoly_setup.py
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cg/blender/processing/lowpoly_setup.py
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# -*- coding: utf-8 -*-
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# Copyright (C) 2023 Ilia Kurochkin <brothermechanic@gmail.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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'''
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DESCRIPTION.
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Create lowpoly shells from parts collections.
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'''
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__version__ = '0.1'
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import logging
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import bpy
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from blender.utils.generative_modifiers import shell_remesher
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from blender.utils.object_converter import mesh_to_mesh
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from blender.utils.object_relations import parenting
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from blender.utils.mesh_tools import select_peaks, select_stratched_edges
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logger = logging.getLogger(__name__)
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logging.basicConfig(level=logging.INFO)
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# COLLECTIONS NAMIG CONVENTION
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parts_col_name = 'Parts'
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lcs_col_name = 'LCS'
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hierarchy_col_name = 'Hierarchy'
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lowpoly_col_name = 'Lowpoly'
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# LCS POINT'S SUFFIXES CONVENTION
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inlet = '_in'
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outlet = '_out'
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root = '_root'
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# CG ASSETS SUFFIXES CONVENTION
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hightpoly = '_hp'
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lowpoly = '_lp'
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render = '_render'
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def parts_to_shells(hightpoly_part_names):
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''' Create lowpoly shells from parts collections. '''
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logger.info('Lowpoly shells creation launched...')
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lowpoly_col = bpy.data.collections.new(lowpoly_col_name)
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bpy.context.scene.collection.children.link(lowpoly_col)
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for part_name in hightpoly_part_names:
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# generate lowpoly objects from part collections
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lowpoly_name = ('{}{}'.format(part_name, lowpoly))
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lowpoly_mesh = bpy.data.meshes.new(lowpoly_name)
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lowpoly_obj = bpy.data.objects.new(lowpoly_name, lowpoly_mesh)
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bpy.context.view_layer.update()
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part_inlet = bpy.data.objects.get('{}{}'.format(part_name, inlet))
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lowpoly_obj.matrix_world = part_inlet.matrix_world.copy()
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parenting(part_inlet, lowpoly_obj)
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lowpoly_col.objects.link(lowpoly_obj)
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shell_remesher(lowpoly_obj, 'remesh_nodes', 'robossembler')
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part_col = bpy.data.collections[('{}{}'.format(part_name, hightpoly))]
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lowpoly_obj.modifiers['remesh_nodes']['Input_0'] = part_col
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remesh_voxel = lowpoly_obj.modifiers.new('remesh_voxel', type='REMESH')
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remesh_voxel.mode = 'VOXEL'
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remesh_voxel.voxel_size = 0.001
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remesh_sharp = lowpoly_obj.modifiers.new('remesh_sharp', type='REMESH')
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remesh_sharp.mode = 'SHARP'
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remesh_sharp.octree_depth = 7
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decimate = lowpoly_obj.modifiers.new('decimate', type='DECIMATE')
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decimate.decimate_type = 'COLLAPSE'
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decimate.ratio = 0.1
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# apply all modifiers to mesh
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parenting(part_inlet, mesh_to_mesh(lowpoly_obj))
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# fix non_manifold shape
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for lowpoly_obj in lowpoly_col.objects:
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bpy.ops.object.select_all(action='DESELECT')
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lowpoly_obj.select_set(state=True)
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bpy.context.view_layer.objects.active = lowpoly_obj
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bpy.ops.object.mode_set(mode='EDIT')
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# pass 1
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bpy.ops.mesh.select_all(action='DESELECT')
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bpy.ops.mesh.select_mode(use_extend=False, use_expand=False, type='VERT')
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select_peaks(lowpoly_obj.data)
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bpy.ops.mesh.select_non_manifold()
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bpy.ops.mesh.dissolve_mode(use_verts=True, use_boundary_tear=False)
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bpy.ops.mesh.delete(type='VERT')
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bpy.ops.mesh.select_all(action='SELECT')
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bpy.ops.mesh.quads_convert_to_tris(quad_method='BEAUTY', ngon_method='BEAUTY')
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# pass 2
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bpy.ops.mesh.select_all(action='DESELECT')
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bpy.ops.mesh.select_mode(use_extend=False, use_expand=False, type='VERT')
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select_peaks(lowpoly_obj.data)
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bpy.ops.mesh.select_non_manifold()
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bpy.ops.mesh.dissolve_mode(use_verts=True, use_boundary_tear=False)
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bpy.ops.mesh.delete(type='VERT')
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bpy.ops.mesh.select_all(action='SELECT')
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bpy.ops.mesh.quads_convert_to_tris(quad_method='BEAUTY', ngon_method='BEAUTY')
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# pass 3
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bpy.ops.mesh.select_all(action='DESELECT')
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bpy.ops.mesh.select_mode(use_extend=False, use_expand=False, type='VERT')
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select_peaks(lowpoly_obj.data)
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bpy.ops.mesh.select_non_manifold()
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bpy.ops.mesh.dissolve_mode(use_verts=True, use_boundary_tear=False)
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bpy.ops.mesh.delete(type='VERT')
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bpy.ops.mesh.select_all(action='SELECT')
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bpy.ops.mesh.quads_convert_to_tris(quad_method='BEAUTY', ngon_method='BEAUTY')
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# pass 4
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bpy.ops.mesh.select_all(action='DESELECT')
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bpy.ops.mesh.select_mode(use_extend=False, use_expand=False, type='VERT')
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select_peaks(lowpoly_obj.data)
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bpy.ops.mesh.select_non_manifold()
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bpy.ops.mesh.dissolve_mode(use_verts=True, use_boundary_tear=False)
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bpy.ops.mesh.delete(type='VERT')
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bpy.ops.mesh.select_all(action='SELECT')
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bpy.ops.mesh.quads_convert_to_tris(quad_method='BEAUTY', ngon_method='BEAUTY')
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# pass 5
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bpy.ops.mesh.select_all(action='DESELECT')
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bpy.ops.mesh.select_mode(type='EDGE')
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select_stratched_edges(lowpoly_obj.data)
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bpy.ops.mesh.dissolve_mode(use_verts=True)
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bpy.ops.mesh.select_all(action='SELECT')
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bpy.ops.mesh.quads_convert_to_tris(quad_method='BEAUTY', ngon_method='BEAUTY')
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bpy.ops.mesh.normals_make_consistent()
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# final
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bpy.ops.mesh.select_all(action='DESELECT')
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bpy.ops.mesh.select_mode(type='FACE')
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bpy.ops.object.mode_set(mode='OBJECT')
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logger.info('Lowpoly shells created successfully!')
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return lowpoly_col.objects
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158
cg/blender/processing/restruct_hierarchy_by_lcs.py
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158
cg/blender/processing/restruct_hierarchy_by_lcs.py
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# -*- coding: utf-8 -*-
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# Copyright (C) 2023 Ilia Kurochkin <brothermechanic@gmail.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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'''
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DESCRIPTION.
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Reorganization and restructuring of assembly structure
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based on LCS point objects.
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'''
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__version__ = '0.1'
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import logging
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import math
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import bpy
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from mathutils import Matrix
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from blender.utils.object_relations import (parenting,
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unparenting)
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from blender.utils.object_transforms import round_transforms
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logger = logging.getLogger(__name__)
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logging.basicConfig(level=logging.INFO)
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# COLLECTIONS NAMIG CONVENTION
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parts_col_name = 'Parts'
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lcs_col_name = 'LCS'
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hierarchy_col_name = 'Hierarchy'
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lowpoly_col_name = 'Lowpoly'
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# LCS POINT'S SUFFIXES CONVENTION
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inlet = '_in'
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outlet = '_out'
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root = '_root'
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# CG ASSETS SUFFIXES CONVENTION
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hightpoly = '_hp'
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lowpoly = '_lp'
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render = '_render'
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def retree_by_lcs(lcs_objects, root_lcs):
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''' Organizing project structure based on LCS. '''
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for lcs in lcs_objects:
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locator = lcs.parent
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if lcs.name.endswith(inlet):
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unparenting(lcs)
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round_transforms(lcs)
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if locator.parent:
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unparenting(locator)
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parenting(lcs, locator)
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parenting(root_lcs, lcs)
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for lcs in lcs_objects:
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if lcs.name.endswith(outlet):
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unparenting(lcs)
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round_transforms(lcs)
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parenting(
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lcs_objects[lcs_objects.index(
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bpy.data.objects[
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'{}{}'.format(lcs.name.split(outlet)[0], inlet)])],
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lcs)
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root_lcs.matrix_world = Matrix()
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return lcs_objects
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def closest_lcs(lcs_objects):
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''' Finding closest outlet to inlet LCS. '''
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target_dists = {}
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for target in lcs_objects:
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if target.name.endswith(inlet):
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dists = {}
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for lcs in lcs_objects:
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if lcs.name.endswith(outlet):
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dist = math.dist(
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target.matrix_world.translation,
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lcs.matrix_world.translation)
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dists[lcs.name] = dist
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min_dist = min(dists.values())
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if min_dist < 0.01:
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min_lcs = [k for k, v in dists.items() if v == min_dist][0]
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target_dists[target.name] = min_lcs
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return target_dists
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def lcs_constrainting(lcs_objects, root_lcs):
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''' Placing inlet right on outlet LCS. '''
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closests = closest_lcs(lcs_objects)
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for lcs in lcs_objects:
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if lcs.name in closests:
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constraint = lcs.constraints.new(type='COPY_TRANSFORMS')
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constraint.target = bpy.data.objects[closests[lcs.name]]
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if lcs.name.endswith(outlet):
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constraint = lcs.constraints.new(type='COPY_TRANSFORMS')
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constraint.target = root_lcs
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constraint.enabled = False
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for lcs in lcs_objects:
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if len(lcs.constraints) == 0:
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constraint = lcs.constraints.new(type='COPY_TRANSFORMS')
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constraint.target = root_lcs
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constraint.enabled = False
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return lcs_objects
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def unlink_from_col(obj):
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''' Unlinking object from all collections. '''
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for col in bpy.data.collections:
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if obj.name in col.objects:
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col.objects.unlink(obj)
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return obj
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def lcs_collections(root_lcs, lcs_objects):
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''' Create LCS based hierarchy. '''
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for lcs in root_lcs.children:
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lcs_col = bpy.data.collections.new(
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'{}{}'.format(lcs.name.split(inlet)[0], hightpoly))
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bpy.data.collections[parts_col_name].children.link(lcs_col)
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for obj in lcs.children_recursive:
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unlink_from_col(obj)
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lcs_col.objects.link(obj)
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if lcs not in lcs_objects:
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unlink_from_col(lcs)
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lcs_col.objects.link(lcs)
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return root_lcs.children
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def restruct_hierarchy():
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''' Execute restructurisation. '''
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lcs_objects = bpy.data.collections[lcs_col_name].objects
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main_locator = [obj for obj in bpy.data.objects if not obj.parent][0]
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root_lcs = [lcs for lcs in lcs_objects if lcs.name.endswith(root)][0]
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lcs_objects = [lcs for lcs in lcs_objects if lcs != root_lcs]
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root_locator = root_lcs.parent
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unparenting(root_lcs)
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round_transforms(root_lcs)
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unparenting(root_locator)
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parenting(root_lcs, root_locator)
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parenting(root_lcs, main_locator)
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retree_by_lcs(lcs_objects, root_lcs)
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lcs_constrainting(lcs_objects, root_lcs)
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lcs_collections(root_lcs, lcs_objects)
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# remove unused for now collection
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bpy.data.collections.remove(bpy.data.collections[hierarchy_col_name])
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logger.info('Restructuring pipeline finished!')
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return lcs_objects
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64
cg/blender/processing/uv_setup.py
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64
cg/blender/processing/uv_setup.py
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@ -0,0 +1,64 @@
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# coding: utf-8
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# Copyright (C) 2023 Ilia Kurochkin <brothermechanic@gmail.com>
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#
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# This program is free software; you can redistribute it and/or modify
|
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# it under the terms of the GNU General Public License as published by
|
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# the Free Software Foundation; either version 3 of the License, or
|
||||
# (at your option) any later version.
|
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#
|
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# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
'''
|
||||
DESCRIPTION.
|
||||
UV unwrapping and UV packing processing.
|
||||
'''
|
||||
__version__ = '0.1'
|
||||
|
||||
import logging
|
||||
import math
|
||||
import bpy
|
||||
|
||||
logger = logging.getLogger(__name__)
|
||||
logging.basicConfig(level=logging.INFO)
|
||||
|
||||
|
||||
def uv_unwrap(objs, angle_limit=30):
|
||||
''' UV unwrapping and UV packing processing '''
|
||||
for obj in objs:
|
||||
obj.select_set(True)
|
||||
bpy.context.view_layer.objects.active = obj
|
||||
bpy.ops.object.mode_set(mode='EDIT')
|
||||
bpy.ops.mesh.select_all(action='SELECT')
|
||||
|
||||
# unwrapping
|
||||
bpy.ops.uv.smart_project(angle_limit=math.radians(angle_limit))
|
||||
|
||||
# packing
|
||||
bpy.ops.uv.pack_islands(udim_source='CLOSEST_UDIM',
|
||||
rotate=True,
|
||||
rotate_method='ANY',
|
||||
scale=True,
|
||||
merge_overlap=False,
|
||||
margin_method='ADD',
|
||||
margin=(1 / 256),
|
||||
pin=False,
|
||||
pin_method='LOCKED',
|
||||
shape_method='CONCAVE')
|
||||
bpy.ops.uv.pack_islands(udim_source='CLOSEST_UDIM',
|
||||
rotate=True,
|
||||
rotate_method='ANY',
|
||||
scale=True,
|
||||
merge_overlap=False,
|
||||
margin_method='ADD',
|
||||
margin=(1 / 256),
|
||||
pin=False,
|
||||
pin_method='LOCKED',
|
||||
shape_method='CONCAVE')
|
||||
|
||||
bpy.ops.object.mode_set(mode='OBJECT')
|
||||
obj.select_set(False)
|
||||
|
||||
logger.info('UV unwrapping and UV packing processing done successfully!')
|
||||
return objs
|
||||
Loading…
Add table
Add a link
Reference in a new issue