Easy:<\/p>\n
It really worth learning some Python basics<\/a>!<\/p>\n Blender API reference<\/a><\/p>\n Operator reference<\/a>: operations in the same way as they would be done by interacting with the editor. Example: mesh operators<\/a> Some useful collections:<\/p>\n All bpy.data elements<\/a><\/p>\n Clear the parent inverse without actually moving the\u00a0object.<\/p>\n This script assumes you have the child selected.<\/em><\/p>\n Source<\/a><\/p>\n Replace Source<\/a><\/p>\n Use after converting .dds images to .png with some tool (e.g. image magick<\/a>).<\/p>\n This script also shows how to remove all elements in a This script assumes you have a mesh object selected.<\/em><\/p>\n Selects objects containing materials with textures pointing to missing image files<\/p>\n Source<\/a><\/p>\n Any of the above scripts may be added to Blender as operator via add-on.<\/p>\n Useful: Addon for\u00a0Running scripts in the Python console<\/a>\u00a0(or\u00a0directly using the python console<\/a>, no addon)<\/p>\n Example: this is the script Clear parent inverse without actually moving the object turned into addon:<\/p>\n
\nTypes reference<\/a>: properties and methods available from scripting at datablock level. Example:\u00a0mesh types<\/a><\/p>\nbpy.context.object # Active object (last object selected)\r\nbpy.context.selected_objects # All selected objects \r\ncontext.scene.objects # All objects in current scene\r\nbpy.data.objects # All objects \r\nbpy.data.meshes # All meshes<\/pre>\n
Reset Parent Inverse<\/h3>\n
import bpy\r\nob = bpy.context.object\r\n\r\n# store a copy of the objects final transformation\r\n# so we can read from it later.\r\nob_matrix_orig = ob.matrix_world.copy()\r\n\r\n# reset parent inverse matrix\r\n# (relationship created when parenting)\r\nob.matrix_parent_inverse.identity()\r\n\r\n# re-apply the difference between parent\/child\r\n# (this writes directly into the loc\/scale\/rot) via a matrix.\r\nob.matrix_basis = ob.parent.matrix_world.inverted() @ ob_matrix_orig<\/pre>\n
Remove animation data<\/h3>\n
import bpy\r\n\r\ncontext = bpy.context\r\nfor ob in context.selected_objects:\r\n ob.animation_data_clear()<\/pre>\n
context.selected_objects<\/code> with context.scene.objects<\/code> for all in the current scene, or bpy.data.objects<\/code> to remove all animation data from all objects.<\/p>\nUpdate image files to other format (e.g. dds to png) (Blender 2.8+)<\/h3>\n
import os \r\n\r\nfor img in bpy.data.images:\r\n if img.source == \"FILE\":\r\n img.filepath = os.path.splitext(img.filepath)[0] + '.png'\r\n img.reload()<\/pre>\n
Remove inactive UV maps from the selected objects (Blender 2.8+)<\/h3>\n
import bpy\r\n\r\nfor ob in bpy.context.selected_objects:\r\n if ob.type == 'MESH':\r\n i = 0\r\n while i < len(ob.data.uv_layers):\r\n ob.data.uv_layers.active_index = i\r\n if ob.data.uv_layers.active.active_render:\r\n i += 1\r\n else:\r\n ob.data.uv_layers.remove(ob.data.uv_layers.active)<\/pre>\n
Remove vertex colors<\/h3>\n
bpi_prop_collection<\/code> list (it seems there’s no clear<\/em> method or equivalent).<\/p>\nimport bpy\r\n\r\nob = bpy.context.object\r\nwhile len(ob.data.vertex_colors) > 0:\r\n ob.data.vertex_colors.active_index = 0\r\n ob.data.vertex_colors.remove(ob.data.vertex_colors.active)<\/pre>\n
Find broken images<\/h3>\n
import bpy\r\n\r\ncontext = bpy.context\r\nfor ob in bpy.data.objects:\r\n if ob.type == 'MESH':\r\n for mat in ob.data.materials:\r\n for tex in mat.texture_slots:\r\n if tex and tex.texture and tex.texture.image and not tex.texture.image.has_data:\r\n print(ob.name, mat.name, tex.texture.image.filepath)\r\n ob.select_set(True)<\/pre>\n
Animate labels\u00a0in the video sequencer<\/h3>\n
Show current frame<\/h4>\n
import bpy\r\n\r\nscene = bpy.context.scene\r\nobj = scene.sequence_editor.sequences_all[\"Text.001\"]\r\n\r\ndef recalculate_text(scene):\r\n obj.text = 'Current frame: ' + str(scene.frame_current)\r\n\r\nbpy.app.handlers.frame_change_pre.append(recalculate_text)<\/pre>\n
Show elapsed time<\/h4>\n
import bpy\r\n\r\nscene = bpy.context.scene\r\nobj = scene.sequence_editor.sequences_all[\"Text.001\"]\r\n\r\ndef recalculate_text(scene):\r\n fps = scene.render.fps \/ scene.render.fps_base # actual framerate\r\n obj.text = 'Elapsed time: {0:.1f} seconds'.format(scene.frame_current\/fps)\r\n\r\nbpy.app.handlers.frame_change_pre.append(recalculate_text)<\/pre>\nBonus: Writing Blender Addons (updated for Blender 2.80)<\/h2>\n
bl_info = {\r\n \"name\": \"Reset Parent Inverse\",\r\n \"category\": \"Object\",\r\n \"blender\": (2, 80, 0),\r\n}\r\n\r\nimport bpy\r\n\r\nclass ObjectResetParentInverse(bpy.types.Operator):\r\n \"\"\"Applies parent inverse and resets it. Object transform becomes relative to the parent. Actual visible position won't change.\"\"\" # blender will use this as a tooltip for menu items and buttons.\r\n bl_idname = \"object.reset_parent_inverse\" # unique identifier for buttons and menu items to reference.\r\n bl_label = \"Reset Parent Inverse\" # display name in the interface.\r\n bl_options = {'REGISTER', 'UNDO'} # enable undo for the operator.\r\n\r\n def execute(self, context): # execute() is called by blender when running the operator.\r\n \r\n for ob in context.selected_objects:\r\n # store a copy of the objects final transformation\r\n # so we can read from it later.\r\n ob_matrix_orig = ob.matrix_world.copy()\r\n\r\n # reset parent inverse matrix\r\n # (relationship created when parenting)\r\n ob.matrix_parent_inverse.identity()\r\n\r\n # re-apply the difference between parent\/child\r\n # (this writes directly into the loc\/scale\/rot) via a matrix.\r\n ob.matrix_basis = ob.parent.matrix_world.inverted() @ ob_matrix_orig\r\n \r\n return {'FINISHED'} # this lets blender know the operator finished successfully.\r\n \r\ndef register():\r\n bpy.utils.register_class(ObjectResetParentInverse)\r\n\r\ndef unregister():\r\n bpy.utils.unregister_class(ObjectResetParentInverse)\r\n\r\n# This allows you to run the script directly from blenders text editor\r\n# to test the addon without having to install it.\r\nif __name__ == \"__main__\":\r\n register()<\/pre>\nWrite and test the addon:<\/h4>\n
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