def iter_aggregated_by_color(json_filename):
"""Yields TiltBrushMesh instances, each of a uniform color."""
def by_color(m):
return m.c[0]
meshes = iter_meshes(json_filename)
for (_, group) in itertools.groupby(sorted(meshes, key=by_color),
key=by_color):
yield TiltBrushMesh.from_meshes(group)
def main():
import argparse
parser = argparse.ArgumentParser(
description="Converts Tilt Brush '.json' exports to .obj.")
parser.add_argument('filename',
help="Exported .json files to convert to obj")
parser.add_argument(
'--cooked',
action='store_true',
dest='cooked',
default=True,
help=
"(default) Strip geometry of normals, weld verts, and give single-sided triangles corresponding backfaces."
)
parser.add_argument(
'--color',
action='store_true',
help=
"Add vertex color to 'v' and 'vc' elements. WARNING: May produce incompatible .obj files."
)
parser.add_argument(
'--raw',
action='store_false',
dest='cooked',
help=
"Emit geometry just as it comes from Tilt Brush. Depending on the brush, triangles may not have backfaces, adjacent triangles will mostly not share verts."
)
parser.add_argument('-o',
dest='output_filename',
metavar='FILE',
help="Name of output file; defaults to <filename>.obj")
args = parser.parse_args()
if args.output_filename is None:
args.output_filename = os.path.splitext(args.filename)[0] + '.obj'
meshes = list(iter_meshes(args.filename))
for mesh in meshes:
mesh.remove_degenerate()
if args.cooked:
for mesh in meshes:
if mesh.brush_guid in SINGLE_SIDED_FLAT_BRUSH:
mesh.add_backfaces()
mesh = TiltBrushMesh.from_meshes(meshes)
mesh.collapse_verts(ignore=('uv0', 'uv1', 'c', 't'))
mesh.remove_degenerate()
else:
mesh = TiltBrushMesh.from_meshes(meshes)
write_obj(mesh, args.output_filename, args.color)
print "Wrote", args.output_filename
def main():
import argparse
parser = argparse.ArgumentParser(description="""Converts Tilt Brush '.json' exports to .fbx.""")
parser.add_argument('filename', help="Exported .json files to convert to fbx")
grp = parser.add_argument_group(description="Merging and optimization")
grp.add_argument('--merge-stroke', action='store_true',
help="Merge all strokes into a single mesh")
grp.add_argument('--merge-brush', action='store_true',
help="(default) Merge strokes that use the same brush into a single mesh")
grp.add_argument('--no-merge-brush', action='store_false', dest='merge_brush',
help="Turn off --merge-brush")
grp.add_argument('--weld-verts', action='store_true',
help="(default) Weld vertices")
grp.add_argument('--no-weld-verts', action='store_false', dest='weld_verts',
help="Turn off --weld-verts")
parser.add_argument('--add-backface', action='store_true',
help="Add backfaces to strokes that don't have them")
parser.add_argument('-o', dest='output_filename', metavar='FILE',
help="Name of output file; defaults to <filename>.fbx")
parser.set_defaults(merge_brush=True, weld_verts=True)
args = parser.parse_args()
if args.output_filename is None:
args.output_filename = os.path.splitext(args.filename)[0] + '.fbx'
meshes = list(iter_meshes(args.filename))
for mesh in meshes:
mesh.remove_degenerate()
if args.add_backface and mesh.brush_guid in SINGLE_SIDED_FLAT_BRUSH:
mesh.add_backface()
if args.merge_stroke:
meshes = [ TiltBrushMesh.from_meshes(meshes, name='strokes') ]
elif args.merge_brush:
def by_guid(m): return (m.brush_guid, m.brush_name)
meshes = [ TiltBrushMesh.from_meshes(list(group), name='All %s' % (key[1], ))
for (key, group) in groupby(sorted(meshes, key=by_guid), key=by_guid) ]
if args.weld_verts:
for mesh in meshes:
# We don't write out tangents, so it's safe to ignore them when welding
mesh.collapse_verts(ignore=('t',))
mesh.remove_degenerate()
write_fbx_meshes(meshes, args.output_filename)
print "Wrote", args.output_filename
def main():
global n
global export_name
global metadata
global polyareadata
polyareadata = []
metadata = {}
metadata['fbxmeta'] = []
n = 1000 #name counter
import argparse
parser = argparse.ArgumentParser(
description="""Converts Tilt Brush '.json' exports to .fbx.""")
parser.add_argument('filename',
help="Exported .json files to convert to fbx",
action='store_true')
grp = parser.add_argument_group(description="Merging and optimization")
grp.add_argument('--merge-stroke',
action='store_true',
help="Merge all strokes into a single mesh")
grp.add_argument(
'--merge-brush',
action='store_true',
help=
"(default) Merge strokes that use the same brush into a single mesh")
grp.add_argument('--no-merge-brush',
action='store_false',
dest='merge_brush',
help="Turn off --merge-brush")
grp.add_argument('--weld-verts',
action='store_true',
help="(default) Weld vertices")
grp.add_argument('--no-weld-verts',
action='store_false',
dest='weld_verts',
help="Turn off --weld-verts")
parser.add_argument('--add-backface',
action='store_true',
help="Add backfaces to strokes that don't have them")
parser.add_argument('-o',
dest='output_filename',
metavar='FILE',
help="Name of output file; defaults to <filename>.fbx")
parser.set_defaults(merge_brush=True, weld_verts=True)
args = parser.parse_args()
args.filename = FNAME
args.merge_brush = MERGE_BRUSH
if args.output_filename is None:
args.output_filename = os.path.splitext(args.filename)[0] + '.fbx'
export_name = os.path.splitext(args.filename)[0] + "_fbx_metadata.json"
meshes = list(iter_meshes(args.filename))
for mesh in meshes:
mesh.remove_degenerate()
if args.add_backface and mesh.brush_guid in SINGLE_SIDED_FLAT_BRUSH:
mesh.add_backface()
if args.merge_stroke:
meshes = [TiltBrushMesh.from_meshes(meshes, name='strokes')]
elif args.merge_brush:
def by_guid(m):
return (m.brush_guid, m.brush_name)
meshes = [
TiltBrushMesh.from_meshes(list(group), name='All %s' % (key[1], ))
for (key,
group) in groupby(sorted(meshes, key=by_guid), key=by_guid)
]
if args.weld_verts:
for mesh in meshes:
# We don't write out tangents, so it's safe to ignore them when welding
mesh.collapse_verts(ignore=('t', ))
mesh.remove_degenerate()
if EXPORT_RELOCATION == 1 or RELOCATE_BRUSHES is False:
write_fbx_meshes(meshes, args.output_filename)
if EXPORT_RELOCATION == 2:
#BRUSH IN INDIVIDUAL FILE
for mesh in meshes:
write_fbx_meshes(mesh, args.output_filename)
metadata['fbxname'] = args.output_filename
print "Wrote", args.output_filename
if EXPORT_BRUSH_AREA is True:
areaexport_name = os.path.splitext(args.filename)[0] + "_brushsize.txt"
print areaexport_name
with open(areaexport_name, 'w') as f:
json.dump(polyareadata, f)
with open(export_name, 'w') as f:
json.dump(metadata, f)
print "Wrote", export_name