io_scene_3ds/__init__.py

@@ -139,7 +139,7 @@ class MAX3DS_PT_import_include(bpy.types.Panel):
     def draw(self, context):
         layout = self.layout
         layout.use_property_split = True
-        layout.use_property_decorate = True
+        layout.use_property_decorate = False
 
         sfile = context.space_data
         operator = sfile.active_operator

io_scene_fbx/__init__.py

@@ -5,7 +5,7 @@
 bl_info = {
     "name": "FBX format",
     "author": "Campbell Barton, Bastien Montagne, Jens Restemeier, @Mysteryem",
-    "version": (5, 10, 1),
+    "version": (5, 10, 3),
     "blender": (4, 1, 0),
     "location": "File > Import-Export",
     "description": "FBX IO meshes, UVs, vertex colors, materials, textures, cameras, lamps and actions",

io_scene_fbx/fbx_utils.py

@@ -23,6 +23,7 @@ from . import encode_bin, data_types
 
 # "Constants"
 FBX_VERSION = 7400
+# 1004 adds use of "OtherFlags"->"TCDefinition" to control the FBX_KTIME opt-in in FBX version 7700.
 FBX_HEADER_VERSION = 1003
 FBX_SCENEINFO_VERSION = 100
 FBX_TEMPLATES_VERSION = 100
@@ -54,7 +55,19 @@ FBX_ANIM_KEY_VERSION = 4008
 FBX_NAME_CLASS_SEP = b"\x00\x01"
 FBX_ANIM_PROPSGROUP_NAME = "d"
 
-FBX_KTIME = 46186158000  # This is the number of "ktimes" in one second (yep, precision over the nanosecond...)
+FBX_KTIME_V7 = 46186158000  # This is the number of "ktimes" in one second (yep, precision over the nanosecond...)
+# FBX 2019.5 (FBX version 7700) changed the number of "ktimes" per second, however, the new value is opt-in until FBX
+# version 8000 where it will probably become opt-out.
+FBX_KTIME_V8 = 141120000
+# To explicitly use the V7 value in FBX versions 7700-7XXX: fbx_root->"FBXHeaderExtension"->"OtherFlags"->"TCDefinition"
+# is set to 127.
+# To opt in to the V8 value in FBX version 7700-7XXX: "TCDefinition" is set to 0.
+FBX_TIMECODE_DEFINITION_TO_KTIME_PER_SECOND = {
+    0: FBX_KTIME_V8,
+    127: FBX_KTIME_V7,
+}
+# The "ktimes" per second for Blender exported FBX is constant because the exported `FBX_VERSION` is constant.
+FBX_KTIME = FBX_KTIME_V8 if FBX_VERSION >= 8000 else FBX_KTIME_V7
 
 
 MAT_CONVERT_LIGHT = Matrix.Rotation(math.pi / 2.0, 4, 'X')  # Blender is -Z, FBX is -Y.
@@ -216,7 +229,7 @@ UNITS = {
     "degree": 360.0,
     "radian": math.pi * 2.0,
     "second": 1.0,  # Ref unit!
-    "ktime": FBX_KTIME,
+    "ktime": FBX_KTIME,  # For export use only because the imported "ktimes" per second may vary.
 }
 
 

io_scene_fbx/import_fbx.py

@@ -48,6 +48,9 @@ from .fbx_utils import (
     MESH_ATTRIBUTE_SHARP_FACE,
     MESH_ATTRIBUTE_SHARP_EDGE,
     expand_shape_key_range,
+    FBX_KTIME_V7,
+    FBX_KTIME_V8,
+    FBX_TIMECODE_DEFINITION_TO_KTIME_PER_SECOND,
 )
 
 LINEAR_INTERPOLATION_VALUE = bpy.types.Keyframe.bl_rna.properties['interpolation'].enum_items['LINEAR'].value
@@ -803,9 +806,8 @@ def blen_read_invalid_animation_curve(key_times, key_values):
     return key_times, key_values
 
 
-def _convert_fbx_time_to_blender_time(key_times, blen_start_offset, fbx_start_offset, fps):
+def _convert_fbx_time_to_blender_time(key_times, blen_start_offset, fbx_start_offset, fps, fbx_ktime):
-    from .fbx_utils import FBX_KTIME
+    timefac = fps / fbx_ktime
-    timefac = fps / FBX_KTIME
 
     # Convert from FBX timing to Blender timing.
     # Cannot subtract in-place because key_times could be read directly from FBX and could be used by multiple Actions.
@@ -838,19 +840,21 @@ def blen_read_animation_curve(fbx_curve):
         return blen_read_invalid_animation_curve(key_times, key_values)
 
 
-def blen_store_keyframes(fbx_key_times, blen_fcurve, key_values, blen_start_offset, fps, fbx_start_offset=0):
+def blen_store_keyframes(fbx_key_times, blen_fcurve, key_values, blen_start_offset, fps, fbx_ktime, fbx_start_offset=0):
     """Set all keyframe times and values for a newly created FCurve.
     Linear interpolation is currently assumed.
 
     This is a convenience function for calling blen_store_keyframes_multi with only a single fcurve and values array."""
-    blen_store_keyframes_multi(fbx_key_times, [(blen_fcurve, key_values)], blen_start_offset, fps, fbx_start_offset)
+    blen_store_keyframes_multi(fbx_key_times, [(blen_fcurve, key_values)], blen_start_offset, fps, fbx_ktime,
+                               fbx_start_offset)
 
 
-def blen_store_keyframes_multi(fbx_key_times, fcurve_and_key_values_pairs, blen_start_offset, fps, fbx_start_offset=0):
+def blen_store_keyframes_multi(fbx_key_times, fcurve_and_key_values_pairs, blen_start_offset, fps, fbx_ktime,
+                               fbx_start_offset=0):
     """Set all keyframe times and values for multiple pairs of newly created FCurves and keyframe values arrays, where
     each pair has the same keyframe times.
     Linear interpolation is currently assumed."""
-    bl_key_times = _convert_fbx_time_to_blender_time(fbx_key_times, blen_start_offset, fbx_start_offset, fps)
+    bl_key_times = _convert_fbx_time_to_blender_time(fbx_key_times, blen_start_offset, fbx_start_offset, fps, fbx_ktime)
     num_keys = len(bl_key_times)
 
     # Compatible with C float type
@@ -883,7 +887,8 @@ def blen_store_keyframes_multi(fbx_key_times, fcurve_and_key_values_pairs, blen_
         blen_fcurve.update()
 
 
-def blen_read_animations_action_item(action, item, cnodes, fps, anim_offset, global_scale, shape_key_deforms):
+def blen_read_animations_action_item(action, item, cnodes, fps, anim_offset, global_scale, shape_key_deforms,
+                                     fbx_ktime):
     """
     'Bake' loc/rot/scale into the action,
     taking any pre_ and post_ matrix into account to transform from fbx into blender space.
@@ -947,10 +952,9 @@ def blen_read_animations_action_item(action, item, cnodes, fps, anim_offset, glo
                 assert(channel in {0, 1, 2})
                 blen_curve = blen_curves[channel]
                 fbx_key_times, values = blen_read_animation_curve(curve)
-                blen_store_keyframes(fbx_key_times, blen_curve, values, anim_offset, fps)
+                blen_store_keyframes(fbx_key_times, blen_curve, values, anim_offset, fps, fbx_ktime)
 
     elif isinstance(item, ShapeKey):
-        deform_values = shape_key_deforms.setdefault(item, [])
         for fbxprop, channel_to_curve in fbx_curves.items():
             assert(fbxprop == b'DeformPercent')
             for channel, curve in channel_to_curve.items():
@@ -960,10 +964,12 @@ def blen_read_animations_action_item(action, item, cnodes, fps, anim_offset, glo
                 fbx_key_times, values = blen_read_animation_curve(curve)
                 # A fully activated shape key in FBX DeformPercent is 100.0 whereas it is 1.0 in Blender.
                 values = values / 100.0
-                blen_store_keyframes(fbx_key_times, blen_curve, values, anim_offset, fps)
+                blen_store_keyframes(fbx_key_times, blen_curve, values, anim_offset, fps, fbx_ktime)
 
                 # Store the minimum and maximum shape key values, so that the shape key's slider range can be expanded
                 # if necessary after reading all animations.
+                if values.size:
+                    deform_values = shape_key_deforms.setdefault(item, [])
                     deform_values.append(values.min())
                     deform_values.append(values.max())
 
@@ -981,7 +987,7 @@ def blen_read_animations_action_item(action, item, cnodes, fps, anim_offset, glo
                     # Remap the imported values from FBX to Blender.
                     values = values / 1000.0
                     values *= global_scale
-                blen_store_keyframes(fbx_key_times, blen_curve, values, anim_offset, fps)
+                blen_store_keyframes(fbx_key_times, blen_curve, values, anim_offset, fps, fbx_ktime)
 
     else:  # Object or PoseBone:
         transform_data = item.fbx_transform_data
@@ -1042,10 +1048,10 @@ def blen_read_animations_action_item(action, item, cnodes, fps, anim_offset, glo
 
         # Each channel has the same keyframe times, so the combined times can be passed once along with all the curves
         # and values arrays.
-        blen_store_keyframes_multi(combined_fbx_times, zip(blen_curves, channel_values), anim_offset, fps)
+        blen_store_keyframes_multi(combined_fbx_times, zip(blen_curves, channel_values), anim_offset, fps, fbx_ktime)
 
 
-def blen_read_animations(fbx_tmpl_astack, fbx_tmpl_alayer, stacks, scene, anim_offset, global_scale):
+def blen_read_animations(fbx_tmpl_astack, fbx_tmpl_alayer, stacks, scene, anim_offset, global_scale, fbx_ktime):
     """
     Recreate an action per stack/layer/object combinations.
     Only the first found action is linked to objects, more complex setups are not handled,
@@ -1092,7 +1098,7 @@ def blen_read_animations(fbx_tmpl_astack, fbx_tmpl_alayer, stacks, scene, anim_o
                     id_data.animation_data.action = action
                 # And actually populate the action!
                 blen_read_animations_action_item(action, item, cnodes, scene.render.fps, anim_offset, global_scale,
-                                                 shape_key_values)
+                                                 shape_key_values, fbx_ktime)
 
     # If the minimum/maximum animated value is outside the slider range of the shape key, attempt to expand the slider
     # range until the animated range fits and has extra room to be decreased or increased further.
@@ -3629,6 +3635,21 @@ def load(operator, context, filepath="",
 
         # Animation!
         def _():
+            # Find the number of "ktimes" per second for this file.
+            # Start with the default for this FBX version.
+            fbx_ktime = FBX_KTIME_V8 if version >= 8000 else FBX_KTIME_V7
+            # Try to find the value of the nested elem_root->'FBXHeaderExtension'->'OtherFlags'->'TCDefinition' element
+            # and look up the "ktimes" per second for its value.
+            if header := elem_find_first(elem_root, b'FBXHeaderExtension'):
+                # The header version that added TCDefinition support is 1004.
+                if elem_prop_first(elem_find_first(header, b'FBXHeaderVersion'), default=0) >= 1004:
+                    if other_flags := elem_find_first(header, b'OtherFlags'):
+                        if timecode_definition := elem_find_first(other_flags, b'TCDefinition'):
+                            timecode_definition_value = elem_prop_first(timecode_definition)
+                            # If its value is unknown or missing, default to FBX_KTIME_V8.
+                            fbx_ktime = FBX_TIMECODE_DEFINITION_TO_KTIME_PER_SECOND.get(timecode_definition_value,
+                                                                                        FBX_KTIME_V8)
+
             fbx_tmpl_astack = fbx_template_get((b'AnimationStack', b'FbxAnimStack'))
             fbx_tmpl_alayer = fbx_template_get((b'AnimationLayer', b'FbxAnimLayer'))
             stacks = {}
@@ -3742,7 +3763,8 @@ def load(operator, context, filepath="",
                     curvenodes[acn_uuid][ac_uuid] = (fbx_acitem, channel)
 
             # And now that we have sorted all this, apply animations!
-            blen_read_animations(fbx_tmpl_astack, fbx_tmpl_alayer, stacks, scene, settings.anim_offset, global_scale)
+            blen_read_animations(fbx_tmpl_astack, fbx_tmpl_alayer, stacks, scene, settings.anim_offset, global_scale,
+                                 fbx_ktime)
 
         _(); del _
 

io_scene_gltf2/__init__.py

@@ -5,7 +5,7 @@
 bl_info = {
     'name': 'glTF 2.0 format',
     'author': 'Julien Duroure, Scurest, Norbert Nopper, Urs Hanselmann, Moritz Becher, Benjamin Schmithüsen, Jim Eckerlein, and many external contributors',
-    "version": (4, 1, 34),
+    "version": (4, 1, 36),
     'blender': (4, 1, 0),
     'location': 'File > Import-Export',
     'description': 'Import-Export as glTF 2.0',
@@ -48,6 +48,7 @@ from bpy.props import (StringProperty,
                        BoolProperty,
                        EnumProperty,
                        IntProperty,
+                       FloatProperty,
                        CollectionProperty)
 from bpy.types import Operator
 from bpy_extras.io_utils import ImportHelper, ExportHelper
@@ -155,6 +156,102 @@ class ExportGLTF2_Base(ConvertGLTF2_Base):
         default=''
     )
 
+    # gltfpack properties
+    export_use_gltfpack: BoolProperty(
+        name='Use Gltfpack',
+        description='Use gltfpack to simplify the mesh and/or compress its textures',
+        default=False,
+    )
+
+    export_gltfpack_tc: BoolProperty(
+        name='KTX2 Compression',
+        description='Convert all textures to KTX2 with BasisU supercompression',
+        default=True,
+    )
+
+    export_gltfpack_tq: IntProperty(
+        name='Texture Encoding Quality',
+        description='Texture encoding quality',
+        default=8,
+        min=1,
+        max=10,
+    )
+
+    export_gltfpack_si: FloatProperty(
+        name='Mesh Simplification Ratio',
+        description='Simplify meshes targeting triangle count ratio',
+        default=1.0,
+        min=0.0,
+        max=1.0,
+    )
+
+    export_gltfpack_sa: BoolProperty(
+        name='Aggressive Mesh Simplification',
+        description='Aggressively simplify to the target ratio disregarding quality',
+        default=False,
+    )
+
+    export_gltfpack_slb: BoolProperty(
+        name='Lock Mesh Border Vertices',
+        description='Lock border vertices during simplification to avoid gaps on connected meshes',
+        default=False,
+    )
+
+    export_gltfpack_vp: IntProperty(
+        name='Position Quantization',
+        description='Use N-bit quantization for positions',
+        default=14,
+        min=1,
+        max=16,
+    )
+
+    export_gltfpack_vt: IntProperty(
+        name='Texture Coordinate Quantization',
+        description='Use N-bit quantization for texture coordinates',
+        default=12,
+        min=1,
+        max=16,
+    )
+
+    export_gltfpack_vn: IntProperty(
+        name='Normal/Tangent Quantization',
+        description='Use N-bit quantization for normals and tangents',
+        default=8,
+        min=1,
+        max=16,
+    )
+
+    export_gltfpack_vc: IntProperty(
+        name='Vertex Color Quantization',
+        description='Use N-bit quantization for colors',
+        default=8,
+        min=1,
+        max=16,
+    )
+
+    export_gltfpack_vpi: EnumProperty(
+        name='Vertex Position Attributes',
+        description='Type to use for vertex position attributes',
+        items=(('Integer', 'Integer', 'Use integer attributes for positions'),
+                ('Normalized', 'Normalized', 'Use normalized attributes for positions'),
+                ('Floating-point', 'Floating-point', 'Use floating-point attributes for positions')),
+        default='Integer',
+    )
+
+    export_gltfpack_noq: BoolProperty(
+        name='Disable Quantization',
+        description='Disable quantization; produces much larger glTF files with no extensions',
+        default=True,
+    )
+
+    # TODO: some stuff in Textures
+
+    # TODO: Animations
+
+    # TODO: Scene
+
+    # TODO: some stuff in Miscellaneous
+
     export_format: EnumProperty(
         name='Format',
         items=(('GLB', 'glTF Binary (.glb)',
@@ -965,6 +1062,25 @@ class ExportGLTF2_Base(ConvertGLTF2_Base):
 
         export_settings['gltf_hierarchy_full_collections'] = self.export_hierarchy_full_collections
 
+        # gltfpack stuff
+        export_settings['gltf_use_gltfpack'] = self.export_use_gltfpack
+        if self.export_use_gltfpack:
+            export_settings['gltf_gltfpack_tc'] = self.export_gltfpack_tc
+            export_settings['gltf_gltfpack_tq'] = self.export_gltfpack_tq
+
+            export_settings['gltf_gltfpack_si'] = self.export_gltfpack_si
+            export_settings['gltf_gltfpack_sa'] = self.export_gltfpack_sa
+            export_settings['gltf_gltfpack_slb'] = self.export_gltfpack_slb
+
+            export_settings['gltf_gltfpack_vp'] = self.export_gltfpack_vp
+            export_settings['gltf_gltfpack_vt'] = self.export_gltfpack_vt
+            export_settings['gltf_gltfpack_vn'] = self.export_gltfpack_vn
+            export_settings['gltf_gltfpack_vc'] = self.export_gltfpack_vc
+
+            export_settings['gltf_gltfpack_vpi'] = self.export_gltfpack_vpi
+
+            export_settings['gltf_gltfpack_noq'] = self.export_gltfpack_noq
+
         export_settings['gltf_binary'] = bytearray()
         export_settings['gltf_binaryfilename'] = (
             path_to_uri(os.path.splitext(os.path.basename(self.filepath))[0] + '.bin')
@@ -1034,6 +1150,56 @@ class GLTF_PT_export_main(bpy.types.Panel):
         layout.prop(operator, 'will_save_settings')
 
 
+class GLTF_PT_export_gltfpack(bpy.types.Panel):
+    bl_space_type = 'FILE_BROWSER'
+    bl_region_type = 'TOOL_PROPS'
+    bl_label = "gltfpack"
+    bl_parent_id = "FILE_PT_operator"
+    bl_options = {'DEFAULT_CLOSED'}
+
+    @classmethod
+    def poll(cls, context):
+        gltfpack_path = context.preferences.addons['io_scene_gltf2'].preferences.gltfpack_path_ui.strip()
+        if (gltfpack_path == ''): # gltfpack not setup in plugin preferences -> dont show any gltfpack relevant options in export dialog
+            return False;
+
+        sfile = context.space_data
+        operator = sfile.active_operator
+
+        return operator.bl_idname == "EXPORT_SCENE_OT_gltf"
+
+    def draw(self, context):
+
+        layout = self.layout
+        layout.use_property_split = True
+        layout.use_property_decorate = False  # No animation.
+
+        sfile = context.space_data
+        operator = sfile.active_operator
+
+        col = layout.column(heading = "gltfpack", align = True)
+        col.prop(operator, 'export_use_gltfpack')
+
+        col = layout.column(heading = "Textures", align = True)
+        col.prop(operator, 'export_gltfpack_tc')
+        col.prop(operator, 'export_gltfpack_tq')
+        col = layout.column(heading = "Simplification", align = True)
+        col.prop(operator, 'export_gltfpack_si')
+        col.prop(operator, 'export_gltfpack_sa')
+        col.prop(operator, 'export_gltfpack_slb')
+        col = layout.column(heading = "Vertices", align = True)
+        col.prop(operator, 'export_gltfpack_vp')
+        col.prop(operator, 'export_gltfpack_vt')
+        col.prop(operator, 'export_gltfpack_vn')
+        col.prop(operator, 'export_gltfpack_vc')
+        col = layout.column(heading = "Vertex positions", align = True)
+        col.prop(operator, 'export_gltfpack_vpi')
+        #col = layout.column(heading = "Animations", align = True)
+        #col = layout.column(heading = "Scene", align = True)
+        col = layout.column(heading = "Miscellaneous", align = True)
+        col.prop(operator, 'export_gltfpack_noq')
+
+
 class GLTF_PT_export_include(bpy.types.Panel):
     bl_space_type = 'FILE_BROWSER'
     bl_region_type = 'TOOL_PROPS'
@@ -1939,12 +2105,21 @@ class GLTF_AddonPreferences(bpy.types.AddonPreferences):
         update=gltf_animation_ui_update
     )
 
+    gltfpack_path_ui: bpy.props.StringProperty(
+        default="",
+        name="glTFpack file path",
+        description="Path to gltfpack binary",
+        subtype='FILE_PATH'
+    )
+
     def draw(self, context):
         layout = self.layout
         row = layout.row()
         row.prop(self, "settings_node_ui", text="Shader Editor Add-ons")
         row.prop(self, "KHR_materials_variants_ui", text="Material Variants")
         row.prop(self, "animation_ui", text="Animation UI")
+        row = layout.row()
+        row.prop(self, "gltfpack_path_ui", text="Path to gltfpack")
 
 def menu_func_import(self, context):
     self.layout.operator(ImportGLTF2.bl_idname, text='glTF 2.0 (.glb/.gltf)')
@@ -1973,6 +2148,7 @@ classes = (
     GLTF_PT_export_animation_shapekeys,
     GLTF_PT_export_animation_sampling,
     GLTF_PT_export_animation_optimize,
+    GLTF_PT_export_gltfpack,
     GLTF_PT_export_user_extensions,
     ImportGLTF2,
     GLTF_PT_import_user_extensions,
@@ -1983,6 +2159,7 @@ classes = (
 
 def register():
     from .blender.com import gltf2_blender_ui as blender_ui
+
     for c in classes:
         bpy.utils.register_class(c)
     # bpy.utils.register_module(__name__)

io_scene_gltf2/blender/exp/gltf2_blender_export.py

@@ -2,6 +2,8 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+import os
+import subprocess
 import time
 
 import bpy
@@ -109,6 +111,70 @@ def __create_buffer(exporter, export_settings):
 
     return buffer
 
+def __postprocess_with_gltfpack(export_settings):
+
+    gltfpack_binary_file_path = bpy.context.preferences.addons['io_scene_gltf2'].preferences.gltfpack_path_ui
+
+    gltf_file_path = export_settings['gltf_filepath']
+    gltf_file_base = os.path.splitext(os.path.basename(gltf_file_path))[0]
+    gltf_file_extension = os.path.splitext(os.path.basename(gltf_file_path))[1]
+    gltf_file_directory = os.path.dirname(gltf_file_path)
+    gltf_output_file_directory = os.path.join(gltf_file_directory, "gltfpacked")
+    if (os.path.exists(gltf_output_file_directory) is False):
+        os.makedirs(gltf_output_file_directory)
+
+    gltf_input_file_path = gltf_file_path
+    gltf_output_file_path = os.path.join(gltf_output_file_directory, gltf_file_base + gltf_file_extension)
+
+    options = []
+
+    if (export_settings['gltf_gltfpack_tc']):
+        options.append("-tc")
+
+        if (export_settings['gltf_gltfpack_tq']):
+            options.append("-tq")
+            options.append(f"{export_settings['gltf_gltfpack_tq']}")
+
+    if (export_settings['gltf_gltfpack_si'] != 1.0):
+        options.append("-si")
+        options.append(f"{export_settings['gltf_gltfpack_si']}")
+
+    if (export_settings['gltf_gltfpack_sa']):
+        options.append("-sa")
+
+    if (export_settings['gltf_gltfpack_slb']):
+        options.append("-slb")
+
+    if (export_settings['gltf_gltfpack_noq']):
+        options.append("-noq")
+    else:
+        options.append("-vp")
+        options.append(f"{export_settings['gltf_gltfpack_vp']}")
+        options.append("-vt")
+        options.append(f"{export_settings['gltf_gltfpack_vt']}")
+        options.append("-vn")
+        options.append(f"{export_settings['gltf_gltfpack_vn']}")
+        options.append("-vc")
+        options.append(f"{export_settings['gltf_gltfpack_vc']}")
+
+        match export_settings['gltf_gltfpack_vpi']:
+            case "Integer":
+                options.append("-vpi")
+            case "Normalized":
+                options.append("-vpn")
+            case "Floating-point":
+                options.append("-vpf")
+
+    parameters = []
+    parameters.append("-i")
+    parameters.append(gltf_input_file_path)
+    parameters.append("-o")
+    parameters.append(gltf_output_file_path)
+
+    try:
+        subprocess.run([gltfpack_binary_file_path] + options + parameters, check=True)
+    except subprocess.CalledProcessError as e:
+        print_console('ERROR', "Calling gltfpack was not successful")
 
 def __write_file(json, buffer, export_settings):
     try:
@@ -117,6 +183,9 @@ def __write_file(json, buffer, export_settings):
             export_settings,
             gltf2_blender_json.BlenderJSONEncoder,
             buffer)
+        if (export_settings['gltf_use_gltfpack'] == True):
+            __postprocess_with_gltfpack(export_settings)
+
     except AssertionError as e:
         _, _, tb = sys.exc_info()
         traceback.print_tb(tb)  # Fixed format

io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives_extract.py

@@ -446,12 +446,14 @@ class PrimitiveCreator:
                     vc_color_name = material_info['vc_info']['color']
                 elif material_info['vc_info']['color_type'] == "active":
                     # Get active (render) Vertex Color
+                    if self.blender_mesh.color_attributes.render_color_index != -1:
                         vc_color_name = self.blender_mesh.color_attributes[self.blender_mesh.color_attributes.render_color_index].name
 
                 if material_info['vc_info']['alpha_type'] == "name":
                     vc_alpha_name = material_info['vc_info']['alpha']
                 elif material_info['vc_info']['alpha_type'] == "active":
                     # Get active (render) Vertex Color
+                    if self.blender_mesh.color_attributes.render_color_index != -1:
                         vc_alpha_name = self.blender_mesh.color_attributes[self.blender_mesh.color_attributes.render_color_index].name
 
                 if vc_color_name is not None:
@@ -472,7 +474,7 @@ class PrimitiveCreator:
                         # We need to check if we need to add alpha
                         add_alpha = vc_alpha_name is not None
                         mat = get_material_from_idx(material_idx, self.materials, self.export_settings)
-                        add_alpha = add_alpha and not (mat.blend_method is None or mat.blend_method == 'OPAQUE')
+                        add_alpha = mat is not None and add_alpha and not (mat.blend_method is None or mat.blend_method == 'OPAQUE')
                         # Manage Vertex Color (RGB and Alpha if needed)
                         self.__manage_color_attribute(vc_color_name, vc_alpha_name if add_alpha else None)
                     else:
@@ -950,6 +952,33 @@ class PrimitiveCreator:
             # Must calculate the type of the field : FLOAT_COLOR or BYTE_COLOR
             additional_fields.append(('COLOR_0' + str(i), gltf2_blender_conversion.get_numpy_type('FLOAT_COLOR' if max_index == 3 else 'BYTE_COLOR')))
 
+
+        if self.export_settings['gltf_loose_edges']:
+            additional_fields_edges = []
+            for i in range(max_index):
+                # Must calculate the type of the field : FLOAT_COLOR or BYTE_COLOR
+                additional_fields_edges.append(('COLOR_0' + str(i), gltf2_blender_conversion.get_numpy_type('FLOAT_COLOR' if max_index == 3 else 'BYTE_COLOR')))
+
+            new_dt = np.dtype(self.dots_edges.dtype.descr + additional_fields_edges)
+            dots_edges = np.zeros(self.dots_edges.shape, dtype=new_dt)
+            for f in self.dots_edges.dtype.names:
+                dots_edges[f] = self.dots_edges[f]
+
+            self.dots_edges = dots_edges
+
+        if self.export_settings['gltf_loose_points']:
+            additional_fields_points = []
+            for i in range(max_index):
+                # Must calculate the type of the field : FLOAT_COLOR or BYTE_COLOR
+                additional_fields_points.append(('COLOR_0' + str(i), gltf2_blender_conversion.get_numpy_type('FLOAT_COLOR' if max_index == 3 else 'BYTE_COLOR')))
+
+            new_dt = np.dtype(self.dots_points.dtype.descr + additional_fields_points)
+            dots_points = np.zeros(self.dots_points.shape, dtype=new_dt)
+            for f in self.dots_points.dtype.names:
+                dots_points[f] = self.dots_points[f]
+
+            self.dots_points = dots_points
+
         # Keep the existing custom attribute
         # Data will be exported twice, one for COLOR_O, one for the custom attribute
         new_dt = np.dtype(self.dots.dtype.descr + additional_fields)
@@ -964,7 +993,7 @@ class PrimitiveCreator:
             self.dots['COLOR_0' +str(i)] = data_dots[:, i]
             if self.export_settings['gltf_loose_edges'] and attr.domain == "POINT":
                 self.dots_edges['COLOR_0' + str(i)] = data_dots_edges[:, i]
-            if self.export_settings['gltf_loose_points'] and attr['blender_domain'] == "POINT":
+            if self.export_settings['gltf_loose_points'] and attr.domain == "POINT":
                 self.dots_points['COLOR_0' + str(i)] = data_dots_points[:, i]
 
         # Add COLOR_0 in attribute list

io_scene_gltf2/blender/exp/material/gltf2_blender_gather_materials.py

@@ -545,6 +545,12 @@ def get_base_material(material_idx, materials, export_settings):
             mat,
             export_settings
         )
+
+    if material is None:
+        # If no material, the mesh can still have vertex color
+        # So, retrieving it
+        material_info["vc_info"] = {"color_type": "active", "alpha_type": "active"}
+
     return material, material_info
 
 def get_all_textures(idx=0):

mesh_bsurfaces.py

@@ -6,8 +6,8 @@
 bl_info = {
     "name": "Bsurfaces GPL Edition",
     "author": "Eclectiel, Vladimir Spivak (cwolf3d)",
-    "version": (1, 8, 1),
+    "version": (1, 8, 2),
-    "blender": (2, 80, 0),
+    "blender": (4, 0, 0),
     "location": "View3D EditMode > Sidebar > Edit Tab",
     "description": "Modeling and retopology tool",
     "doc_url": "{BLENDER_MANUAL_URL}/addons/mesh/bsurfaces.html",
@@ -3539,11 +3539,10 @@ class MESH_OT_SURFSK_init(Operator):
             global_mesh_object = mesh_object.name
             bpy.context.scene.bsurfaces.SURFSK_mesh = bpy.data.objects[global_mesh_object]
 
-            bpy.context.scene.tool_settings.snap_elements = {'FACE'}
+            bpy.context.scene.tool_settings.snap_elements = {'FACE_PROJECT'}
             bpy.context.scene.tool_settings.use_snap = True
             bpy.context.scene.tool_settings.use_snap_self = False
             bpy.context.scene.tool_settings.use_snap_align_rotation = True
-            bpy.context.scene.tool_settings.use_snap_project = True
             bpy.context.scene.tool_settings.use_snap_rotate = True
             bpy.context.scene.tool_settings.use_snap_scale = True
 

vdm_brush_baker/__init__.py

@@ -16,7 +16,7 @@ bl_info = {
     'author': 'Robin Hohnsbeen',
     'description': 'Bake vector displacement brushes easily from a plane',
     'blender': (3, 5, 0),
-    'version': (1, 0, 2),
+    'version': (1, 0, 3),
     'location': 'Sculpt Mode: View3D > Sidebar > Tool Tab',
     'warning': '',
     'category': 'Baking',
@@ -88,7 +88,6 @@ class PT_VDMBaker(bpy.types.Panel):
 
         layout.use_property_split = True
         layout.use_property_decorate = False
-
         layout.operator(create_sculpt_plane.bl_idname, icon='ADD')
 
         layout.separator()
@@ -187,7 +186,6 @@ class create_vdm_brush(bpy.types.Operator):
             return {'CANCELLED'}
 
         vdm_plane = context.active_object
-
         addon_data = get_addon_data()
         new_brush_name = addon_data.draft_brush_name
         reference_brush_name = addon_data.draft_brush_name
@@ -214,6 +212,7 @@ class create_vdm_brush(bpy.types.Operator):
         bpy.ops.object.mode_set(mode='OBJECT')
 
         vdm_bake_material = bakematerial.get_vdm_bake_material()
+        vdm_texture_image = None
         try:
             # Prepare baking
             scene.render.engine = 'CYCLES'

vdm_brush_baker/bakematerial.py

@@ -12,13 +12,19 @@ def get_vdm_bake_material():
     material: Baking material
     """
     material_name = 'VDM_baking_material'
-    if material_name not in bpy.data.materials:
+    if material_name in bpy.data.materials:
+        # Recreate material every time to ensure it is unchanged by the user which could lead to issues.
+        # I would like to keep it directly after bake though so people could look
+        # at how it is made, if they are interested.
+        bpy.data.materials.remove(bpy.data.materials[material_name])
+
     new_material = bpy.data.materials.new(name=material_name)
 
     new_material.use_nodes = True
     nodes = new_material.node_tree.nodes
-        nodes.remove(nodes['Principled BSDF'])
+    principled_node = next(n for n in new_material.node_tree.nodes if n.type == "BSDF_PRINCIPLED")
-        material_output = nodes['Material Output']
+    nodes.remove(principled_node)
+    material_output = next(n for n in new_material.node_tree.nodes if n.type == "OUTPUT_MATERIAL")
 
     # Create relevant nodes
     combine_node = nodes.new('ShaderNodeCombineXYZ')