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fix objects with parent transforms not exporting correctly

This commit is contained in:
SleepKiller 2019-11-19 01:33:55 +13:00
parent 0fab83cfa1
commit 78237e7eec
3 changed files with 11 additions and 23 deletions
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4
README.md
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@ -52,10 +52,6 @@ Saving polygons also will make any hypothetical importer work better, since quad
The triangle strips are generated using a brute-force method that seams to give decent results. The triangle strips are generated using a brute-force method that seams to give decent results.
#### Delta transforms are combined with regular transforms on export.
Unsurprisingly Blender's delta transforms have no meaningful representation in .msh files.
So they are combined with the regular transform during export.
#### If a scene has no materials a default one will be added to the resulting .msh file. #### If a scene has no materials a default one will be added to the resulting .msh file.
Can't imagine this coming up much (Maybe if you're model is just for collisions or shadows?) but that's how it works. Can't imagine this coming up much (Maybe if you're model is just for collisions or shadows?) but that's how it works.

4
addons/io_scene_swbf_msh/msh_model.py
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@ -24,8 +24,8 @@ class CollisionPrimitiveShape(Enum):
class ModelTransform: class ModelTransform:
""" Class representing a `TRAN` section in a .msh file. """ """ Class representing a `TRAN` section in a .msh file. """
translation: Vector = Vector((0.0, 0.0, 0.0)) translation: Vector = field(default_factory=Vector)
rotation: Quaternion = Quaternion((1.0, 0.0, 0.0, 0.0)) rotation: Quaternion = field(default_factory=Quaternion)
@dataclass @dataclass
class GeometrySegment: class GeometrySegment:

26
addons/io_scene_swbf_msh/msh_model_gather.py
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@ -27,12 +27,14 @@ def gather_models() -> List[Model]:
obj = uneval_obj.evaluated_get(depsgraph) obj = uneval_obj.evaluated_get(depsgraph)
local_translation, local_rotation, _ = obj.matrix_local.decompose()
model = Model() model = Model()
model.name = obj.name model.name = obj.name
model.model_type = get_model_type(obj) model.model_type = get_model_type(obj)
model.hidden = get_is_model_hidden(obj) model.hidden = get_is_model_hidden(obj)
model.transform.rotation = convert_rotation_space(obj.rotation_quaternion @ obj.delta_rotation_quaternion) model.transform.rotation = convert_rotation_space(local_rotation)
model.transform.translation = convert_vector_space(add_vec(obj.location, obj.delta_location)) model.transform.translation = convert_vector_space(local_translation)
if obj.parent is not None: if obj.parent is not None:
model.parent = obj.parent.name model.parent = obj.parent.name
@ -42,8 +44,9 @@ def gather_models() -> List[Model]:
model.geometry = create_mesh_geometry(mesh) model.geometry = create_mesh_geometry(mesh)
obj.to_mesh_clear() obj.to_mesh_clear()
mesh_scale = convert_vector_space(get_object_worldspace_scale(obj)) _, _, world_scale = obj.matrix_world.decompose()
scale_segments(mesh_scale, model.geometry) world_scale = convert_scale_space(world_scale)
scale_segments(world_scale, model.geometry)
if get_is_collision_primitive(obj): if get_is_collision_primitive(obj):
model.collisionprimitive = get_collision_primitive(obj) model.collisionprimitive = get_collision_primitive(obj)
@ -131,17 +134,6 @@ def create_mesh_geometry(mesh: bpy.types.Mesh) -> List[GeometrySegment]:
return segments return segments
def get_object_worldspace_scale(obj: bpy.types.Object) -> Vector:
""" Get the worldspace scale transform for a Blender object. """
scale = mul_vec(obj.scale, obj.delta_scale)
while obj.parent is not None:
obj = obj.parent
scale = mul_vec(scale, mul_vec(obj.scale, obj.delta_scale))
return scale
def get_model_type(obj: bpy.types.Object) -> ModelType: def get_model_type(obj: bpy.types.Object) -> ModelType:
""" Get the ModelType for a Blender object. """ """ Get the ModelType for a Blender object. """
# TODO: Skinning support, etc # TODO: Skinning support, etc
@ -194,7 +186,7 @@ def get_collision_primitive(obj: bpy.types.Object) -> CollisionPrimitive:
raise RuntimeError(f"Object '{obj.name}' is being used as a cylinder collision " raise RuntimeError(f"Object '{obj.name}' is being used as a cylinder collision "
f"primitive but it's X and Y dimensions are not uniform!") f"primitive but it's X and Y dimensions are not uniform!")
primitive.radius = obj.dimensions[0] * 0.5 primitive.radius = obj.dimensions[0] * 0.5
primitive.height = obj.dimensions[2] * 0.5 primitive.height = obj.dimensions[2]
elif primitive.shape == CollisionPrimitiveShape.BOX: elif primitive.shape == CollisionPrimitiveShape.BOX:
primitive.radius = obj.dimensions[0] * 0.5 primitive.radius = obj.dimensions[0] * 0.5
primitive.height = obj.dimensions[2] * 0.5 primitive.height = obj.dimensions[2] * 0.5
@ -212,7 +204,7 @@ def get_collision_primitive_shape(obj: bpy.types.Object) -> CollisionPrimitiveSh
return CollisionPrimitiveShape.SPHERE return CollisionPrimitiveShape.SPHERE
if "cylinder" in name or "cyln" in name or "cyl" in name: if "cylinder" in name or "cyln" in name or "cyl" in name:
return CollisionPrimitiveShape.CYLINDER return CollisionPrimitiveShape.CYLINDER
if "box" in name: if "box" in name: # TODO: Accept cube, cuboid
return CollisionPrimitiveShape.BOX return CollisionPrimitiveShape.BOX
raise RuntimeError(f"Object '{obj.name}' has no primitive type specified in it's name!") raise RuntimeError(f"Object '{obj.name}' has no primitive type specified in it's name!")