add "Generate Triangle Strips" option to enable faster .msh iteration

This commit is contained in:
SleepKiller 2019-11-20 15:17:25 +13:00
parent cfba9e85ce
commit 7fd46a1c2c
2 changed files with 26 additions and 32 deletions

View File

@ -60,14 +60,11 @@ from .msh_scene import create_scene
from .msh_scene_save import save_scene
from .msh_material_properties import *
# ExportHelper is a helper class, defines filename and
# invoke() function which calls the file selector.
class ExportSomeData(Operator, ExportHelper):
"""This appears in the tooltip of the operator and in the generated docs"""
bl_idname = "export_test.some_data" # important since its how bpy.ops.import_test.some_data is constructed
bl_label = "Export Some Data"
class ExportMSH(Operator, ExportHelper):
""" Export the current scene as a SWBF .msh file. """
# ExportHelper mixin class uses this
bl_idname = "swbf_msh.export"
bl_label = "Export SWBF .msh File"
filename_ext = ".msh"
filter_glob: StringProperty(
@ -76,38 +73,31 @@ class ExportSomeData(Operator, ExportHelper):
maxlen=255, # Max internal buffer length, longer would be clamped.
)
# List of operator properties, the attributes will be assigned
# to the class instance from the operator settings before calling.
use_setting: BoolProperty(
name="Example Boolean",
description="Example Tooltip",
default=True,
)
type: EnumProperty(
name="Example Enum",
description="Choose between two items",
items=(
('OPT_A', "First Option", "Description one"),
('OPT_B', "Second Option", "Description two"),
),
default='OPT_A',
generate_triangle_strips: BoolProperty(
name="Generate Triangle Strips",
description="Triangle strip generation can be slow for meshes with thousands of faces "
"and is off by default to enable fast mesh iteration.\n\n"
"In order to improve runtime performance and reduce munged model size you are "
"**strongly** advised to turn it on for your 'final' export!",
default=False
)
def execute(self, context):
with open(self.filepath, 'wb') as output_file:
save_scene(output_file, create_scene())
save_scene(
output_file=output_file,
scene=create_scene(generate_triangle_strips=self.generate_triangle_strips))
return {'FINISHED'}
# Only needed if you want to add into a dynamic menu
def menu_func_export(self, context):
self.layout.operator(ExportSomeData.bl_idname, text="SWBF msh (.msh)")
self.layout.operator(ExportMSH.bl_idname, text="SWBF msh (.msh)")
def register():
bpy.utils.register_class(MaterialProperties)
bpy.utils.register_class(MaterialPropertiesPanel)
bpy.utils.register_class(ExportSomeData)
bpy.utils.register_class(ExportMSH)
bpy.types.TOPBAR_MT_file_export.append(menu_func_export)
bpy.types.Material.swbf_msh = bpy.props.PointerProperty(type=MaterialProperties)
@ -116,11 +106,8 @@ def register():
def unregister():
bpy.utils.unregister_class(MaterialProperties)
bpy.utils.unregister_class(MaterialPropertiesPanel)
bpy.utils.unregister_class(ExportSomeData)
bpy.utils.unregister_class(ExportMSH)
bpy.types.TOPBAR_MT_file_export.remove(menu_func_export)
if __name__ == "__main__":
register()
# test call
# bpy.ops.export_test.some_data('INVOKE_DEFAULT')

View File

@ -44,7 +44,7 @@ class Scene:
materials: Dict[str, Material] = field(default_factory=dict)
models: List[Model] = field(default_factory=list)
def create_scene() -> Scene:
def create_scene(generate_triangle_strips: bool) -> Scene:
""" Create a msh Scene from the active Blender scene. """
scene = Scene()
@ -55,7 +55,14 @@ def create_scene() -> Scene:
scene.models = gather_models()
scene.models = sort_by_parent(scene.models)
if generate_triangle_strips:
scene.models = create_models_triangle_strips(scene.models)
else:
for model in scene.models:
if model.geometry:
for segment in model.geometry:
segment.triangle_strips = segment.triangles
if has_multiple_root_models(scene.models):
scene.models = reparent_model_roots(scene.models)