在Blender Python exporter中旋转模型
我在写一个模型导出器。我想在导出器脚本中将整个模型在X轴上旋转90度。问题是,如果模型包含多个网格,则网格位置错误。以下是我的出口商的相关部分:在Blender Python exporter中旋转模型,python,3d,rotation,blender,coordinate-systems,Python,3d,Rotation,Blender,Coordinate Systems,我在写一个模型导出器。我想在导出器脚本中将整个模型在X轴上旋转90度。问题是,如果模型包含多个网格,则网格位置错误。以下是我的出口商的相关部分: objects = [Object for Object in context.selected_objects if Object.type in ("MESH")] for obj in objects: ... mat_x90 = mathutils.Matrix.Rotation(-math.pi
objects = [Object for Object in context.selected_objects if Object.type in ("MESH")]
for obj in objects:
...
mat_x90 = mathutils.Matrix.Rotation(-math.pi/2, 4, 'X')
obj.data.transform(mat_x90)
object[ OBJ.MAT ] = obj.matrix_world.copy()
object[ OBJ.LOC ] = object[ OBJ.MAT ].to_translation()
object[ OBJ.ROT ] = object[ OBJ.MAT ].to_quaternion()
object[ OBJ.SCA ] = object[ OBJ.MAT ].to_scale()
object[ OBJ.UVL ] = None
...
for face in obj.data.tessfaces:
for vertex_id in (0, 1, 2):
vertex_pnt = self.get_vertex_pnt(object, obj.data, face, vertex_id)
mesh.vertices.append( vertex_pnt )
...
def get_vertex_pnt( self, obj_prop, mesh, face, face_vi ):
# position
co = obj_prop[ OBJ.LOC ] +
mathutils.Vector(obj_prop[OBJ.ROT] * mathutils.Vector([
mesh.vertices[face.vertices[face_vi]].co[0] * obj_prop[OBJ.SCA][0], \
mesh.vertices[face.vertices[face_vi]].co[1] * obj_prop[OBJ.SCA][1], \
mesh.vertices[face.vertices[face_vi]].co[2] * obj_prop[OBJ.SCA][2] \
]))
如果我没有在循环开始时应用90度旋转,网格位置是可以的,但是模型在X轴上旋转了90度,这是我不想要的
基本上,我想在脚本中执行此操作:
完成手动选择要导出的所有网格
按“r”启动旋转
按“x”键并旋转90度
编辑:在从Blender导出之前和之后附上屏幕截图:
终于找到了一个:
如果模型包含多个网格,那么网格位置是错误的,您能简单解释一下吗?
def get_override(area_type, region_type):
for area in bpy.context.screen.areas:
if area.type == area_type:
for region in area.regions:
if region.type == region_type:
override = {'area': area, 'region': region}
return override
#error message if the area or region wasn't found
raise RuntimeError("Wasn't able to find", region_type," in area ", area_type,
"\n Make sure it's open while executing script.")
#we need to override the context of our operator
override = get_override( 'VIEW_3D', 'WINDOW' )
#rotate about the X-axis by 45 degrees
bpy.ops.transform.rotate(override, value=6.283/8, axis=(1,0,0))