71 lines
2.5 KiB
Python
71 lines
2.5 KiB
Python
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#
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# This is a convenient way to convert the scene to lowpoly
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# (by adding decimate-modifiers)
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# and then exporting a gltf to to <blenderdocument>.glb
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#
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# All this is done automatically when saving the blender file
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#
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import bpy
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import os
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from bpy_extras.io_utils import ImportHelper
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# uncomment below in case you want to hardcode the exported filename
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data = {
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#gltf_file="/some/path/foo.index.glb"
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}
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def notify(message = "", title = "Message Box", icon = 'INFO'):
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def draw(self, context):
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self.layout.label(text=message)
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bpy.context.window_manager.popup_menu(draw, title = title, icon = icon)
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# redirect print to all consoles
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def print(data):
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for window in bpy.context.window_manager.windows:
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screen = window.screen
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for area in screen.areas:
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if area.type == 'CONSOLE':
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override = {'window': window, 'screen': screen, 'area': area}
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bpy.ops.console.scrollback_append(override, text=str(data), type="OUTPUT")
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# Function to add Decimate Modifier to objects without one (except those in the exclusion list)
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def add_decimate_modifier_to_objects():
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for obj in bpy.data.objects:
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print(obj.type)
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if obj is not None and (obj.type == 'FONT' or (obj.type == 'MESH' and len(obj.data.polygons) > 8)):
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if not obj.modifiers.get("Decimate"):
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#if obj.name not in exclusion_list and "Decimate" not in obj.modifiers:
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print("adding decimate-modifier to:"+obj.name)
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bpy.context.view_layer.objects.active = obj
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bpy.data.objects[obj.name].select_set(True)
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# Add Decimate Modifier with ratio 0.5
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bpy.ops.object.modifier_add(type='DECIMATE')
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bpy.context.object.modifiers["Decimate"].ratio = 0.5
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# Function to be called on file save
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def on_save_handler(blenderdoc):
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if 'gltf_file' not in data:
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gltf_file = bpy.data.filepath.replace('.blend','.glb')
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else:
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gltf_file = data['gltf_file']
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add_decimate_modifier_to_objects()
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# Export to glTF with specified settings and apply modifiers
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bpy.ops.export_scene.gltf(
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filepath=gltf_file,
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export_format='GLB',
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export_extras=True,
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export_lights=True,
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export_apply=True,
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export_force_sampling=False,
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)
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notify(os.path.basename(gltf_file),"OK export")
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# Register the handler
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bpy.app.handlers.save_post.clear()
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bpy.app.handlers.save_post.append(on_save_handler)
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print("sourced gltf_export_on_save")
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