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maya打开脚本编辑器
运行打开bvh脚本
maya导出bvh脚本 maya打开脚本编辑器
打开Maya软件#xff0c;点击右下角 “脚本编辑器” 运行打开bvh脚本
https://github.com/jhoolmans/mayaImporterBVH/blob/master/bvh_importer.py
import os
import re
from typing impo…目录
maya打开脚本编辑器
运行打开bvh脚本
maya导出bvh脚本 maya打开脚本编辑器
打开Maya软件点击右下角 “脚本编辑器” 运行打开bvh脚本
https://github.com/jhoolmans/mayaImporterBVH/blob/master/bvh_importer.py
import os
import re
from typing import Optionalimport maya.cmds as mcspace_re re.compile(r\s)# This maps the BVH naming convention to Maya
translationDict {Xposition: translateX,Yposition: translateY,Zposition: translateZ,Xrotation: rotateX,Yrotation: rotateY,Zrotation: rotateZ
}class TinyDAG(object):Tiny DAG class for storing the hierarchy of the BVH file.def __init__(self, obj: str, parent: Optional[TinyDAG] None):Constructorself.obj objself.__parent parentpropertydef parent(self):Returns the parent of the objectreturn self.__parentdef __str__(self) - str:String representation of the objectreturn str(self.obj)def full_path(self) - str:Returns the full path of the objectif self.parent is not None:return %s|%s % (self.parent.full_path(), str(self))return str(self.obj)class BVHImporterDialog(object):BVH Importer DialogThis class is the main dialog for the BVH importer.def __init__(self, debugFalse):self._name bvhImportDialogself._title BVH Importer v2.0if debug:print(Debug is deprecated.)# UI relatedself._textfield self._scale_field self._frame_field self._rotation_order self._reload # Otherself._root_node None # Used for targeting# BVH specific stuffself._filename self._channels []self.setup_ui()def setup_ui(self):Builds the UIwin self._nameif mc.window(win, exTrue):mc.deleteUI(win)# Non sizeable dialogwin mc.window(self._name, titleself._title, w200, rtfTrue,sizeableFalse)mc.columnLayout(adj1, rs5)mc.separator()mc.text(Options)mc.separator()mc.rowColumnLayout(numberOfColumns2,columnWidth[(1, 80), (2, 150)],cal[(1, right), (2, center)],cs[(1, 5), (2, 5)],rs[(1, 5), (2, 5)])mc.text(Rig scale)self._scale_field mc.floatField(minValue0.01, maxValue2, value1)mc.text(Frame offset)self._frame_field mc.intField(minValue0)mc.text(Rotation Order)self._rotation_order mc.optionMenu()mc.menuItem(labelXYZ)mc.menuItem(labelYZX)mc.menuItem(labelZXY)mc.menuItem(labelXZY)mc.menuItem(labelYXZ)mc.menuItem(labelZYX)mc.setParent(..)mc.separator()# Targeting UImc.text(Skeleton Targeting)mc.text((Select the hips))mc.separator()mc.rowColumnLayout(numberOfColumns2,columnWidth[(1, 150), (2, 80)],cs[(1, 5), (2, 5)],rs[(1, 5), (2, 5)])self._textfield mc.textField(editableFalse)mc.button(Select/Clear, cself._on_select_root)mc.setParent(..)mc.separator()mc.button(Import.., cself._on_select_file)self._reload mc.button(Reload, enableFalse, cself._read_bvh)# Footermc.text(by Jeroen Hoolmans)mc.window(win, eTrue, rtfTrue, sizeableFalse)mc.showWindow(win)def _on_select_file(self, e):Callback for the import button.file_filter All Files (*.*);;Motion Capture (*.bvh)result mc.fileDialog2(fileFilterfile_filter, dialogStyle1, fm1)if result is None or not len(result):returnself._filename result[0]mc.button(self._reload, eTrue, enableTrue)# Action!self._read_bvh()def load_bvh(self, filename):self._filename filenameself._read_bvh()def _read_bvh(self, *_args):# Safe close is needed for End Site part to keep from setting new# parent.safe_close False# Once motion is active, animate.motion False# Clear channels before appendingself._channels []# Scale the entire rig and animationrig_scale mc.floatField(self._scale_field, qTrue, valueTrue)frame mc.intField(self._frame_field, qTrue, valueTrue)rot_order mc.optionMenu(self._rotation_order, qTrue, selectTrue) - 1with open(self._filename) as f:# Check to see if the file is valid (sort of)if not f.readline().startswith(HIERARCHY):mc.error(No valid .bvh file selected.)return Falseif self._root_node is None:# Create a group for the rig, easier to scale.# (Freeze transform when ungrouping please..)mocap_name os.path.basename(self._filename)grp mc.group(emTrue, name_mocap_%s_grp % mocap_name)mc.setAttr(%s.scale % grp, rig_scale, rig_scale, rig_scale)# The group is now the rootmy_parent TinyDAG(grp, None)else:my_parent TinyDAG(self._root_node, None)self._clear_animation()for line in f:line line.replace( , ) # force spacesif not motion:# root jointif line.startswith(ROOT):# Set the Hip joint as rootif self._root_node:my_parent TinyDAG(str(self._root_node), None)else:my_parent TinyDAG(line[5:].rstrip(), my_parent)# Update root node in case we want to reload.self._root_node my_parentmc.textField(self._textfield,eTrue,textmy_parent.full_path())if JOINT in line:jnt space_re.split(line.strip())# Create the jointmy_parent TinyDAG(jnt[1], my_parent)if End Site in line:# Finish up a hierarchy and ignore a closing bracketsafe_close Trueif } in line:# Ignore when safeClose is onif safe_close:safe_close Falsecontinue# Go up one levelif my_parent is not None:my_parent my_parent.parentif my_parent is not None:mc.select(my_parent.full_path())if CHANNELS in line:chan line.strip()chan space_re.split(chan)# Append the channels that are animatedfor i in range(int(chan[1])):self._channels.append(%s.%s % (my_parent.full_path(),translationDict[chan[2 i]]))if OFFSET in line:offset line.strip()offset space_re.split(offset)jnt_name str(my_parent)# When End Site is reached, name it _tipif safe_close:jnt_name _tip# skip if existsif mc.objExists(my_parent.full_path()):jnt my_parent.full_path()else:# Build a new jointjnt mc.joint(namejnt_name, p(0, 0, 0))mc.setAttr(jnt .rotateOrder, rot_order)mc.setAttr(jnt .translate,float(offset[1]),float(offset[2]),float(offset[3]))if MOTION in line:# Animate!motion Trueelse:# We dont really need to use Frame count and time# (since Python handles file reads nicely)if Frame not in line:data space_re.split(line.strip())# Set the values to channelsfor index, value in enumerate(data):mc.setKeyframe(self._channels[index],timeframe,valuefloat(value))frame frame 1def _clear_animation(self):if self._root_node is None:mc.error(Could not find root node to clear animation.)return# Select hierarchymc.select(str(self._root_node), hiTrue)nodes mc.ls(slTrue)trans_attrs [translateX, translateY, translateZ]rot_attrs [rotateX, rotateY, rotateZ]for node in nodes:for attr in trans_attrs rot_attrs:# Delete input connectionsconnections mc.listConnections(%s.%s % (node, attr),sTrue,dFalse)if connections is not None:mc.delete(connections)for attr in rot_attrs:# Reset rotationmc.setAttr(%s.%s % (node, attr), 0)def _on_select_root(self, *_args):# When targeting, set the root joint (Hips)selection mc.ls(slTrue, typejoint, lTrue)if len(selection) 0:self._root_node Nonemc.textField(self._textfield, eTrue, text)else:self._root_node selection[0]mc.textField(self._textfield, eTrue, textself._root_node)if __name__ __main__:dialog BVHImporterDialog() maya导出bvh脚本
https://github.com/zhaozigu/maya-export-bvh/blob/main/export_bvh.py
import os
import mathimport maya.cmds as cmds
import maya.api.OpenMaya as omdef get_bone_rotation(bone):cur_mat om.MMatrix(cmds.xform(bone, qTrue, wsTrue, mTrue))parent cmds.listRelatives(bone, pTrue)[0]parent_mat om.MMatrix(cmds.xform(parent, qTrue, wsTrue, mTrue))local_mat cur_mat * parent_mat.inverse()cur_xfo_mat om.MTransformationMatrix(local_mat)rotation [math.degrees(x) for x in cur_xfo_mat.rotation().asVector()]return rotationdef export_motion(joints, start_frame, end_frame, rot_order: tuple):motion_str root_joint joints[0]for frame in range(start_frame, end_frame 1):cmds.currentTime(frame)for joint in joints:joint_name cmds.ls(joint, longTrue)[0]rot get_bone_rotation(joint_name)if joint root_joint:loc cmds.xform(joint_name, qTrue, translationTrue)motion_str %.6f %.6f %.6f % (loc[0], loc[1], loc[2])motion_str %.6f %.6f %.6f % (rot[rot_order[0]], rot[rot_order[1]], rot[rot_order[2]])motion_str \nreturn motion_strdef export_hierarchy(joints, rot_order: str):hierarchy_str HIERARCHY\ndef _process_joint(joint, indent):nonlocal hierarchy_strjoint_name_raw cmds.ls(joint, longTrue)[0]joint_name joint_name_raw.split(|)[-1].split(:)[-1]if indent 0:hierarchy_str {}ROOT {}\n.format(\t * indent, joint_name)else:hierarchy_str {}JOINT {}\n.format(\t * indent, joint_name)loc cmds.xform(joint_name_raw, qTrue, translationTrue)hierarchy_str {}{{\n.format(\t * indent)hierarchy_str {}OFFSET {:.6f} {:.6f} {:.6f}\n.format(\t * (indent 1), loc[0], loc[1], loc[2])if indent 0:hierarchy_str {}CHANNELS 6 Xposition Yposition Zposition {}rotation {}rotation {}rotation\n.format(\t * (indent 1), rot_order[0], rot_order[1], rot_order[2])else:hierarchy_str {}CHANNELS 3 {}rotation {}rotation {}rotation\n.format(\t * (indent 1), rot_order[0], rot_order[1], rot_order[2])children cmds.listRelatives(joint, childrenTrue, typejoint)if children:for child in children:_process_joint(child, indent 1)else:hierarchy_str {}End Site\n.format(\t * (indent 1))hierarchy_str {}{{\n.format(\t * (indent 1))hierarchy_str {}OFFSET 0.0 0.0 0.0\n.format(\t * (indent 2))hierarchy_str {}}}\n.format(\t * (indent 1))hierarchy_str {}}}\n.format(\t * indent)root_joint joints[0]_process_joint(root_joint, 0)return hierarchy_strdef export_bvh(joints, output_file_path, start_frame, end_frame, rot_orderZXY):_order {XYZ: (0, 1, 2),XZY: (0, 2, 1),YXZ: (1, 0, 2),YZX: (1, 2, 0),ZXY: (2, 0, 1),ZYX: (2, 1, 0),}assert rot_order in _order, The parameters of the rotation order are incorrecthierarchy export_hierarchy(joints, rot_order)motion export_motion(joints, start_frame, end_frame, _order[rot_order])num_frames end_frame - start_frame 1frame_rate cmds.playbackOptions(queryTrue, framesPerSecondTrue)if frame_rate 0:frame_rate 24.0frame_time 1.0 / frame_ratewith open(output_file_path, w) as output_file:output_file.write(hierarchy)output_file.write(fMOTION\nFrames: {num_frames}\nFrame Time: {frame_time:.6f}\n)output_file.write(motion)def get_ordered_joints(joint):ordered_joints [joint]children cmds.listRelatives(joint, childrenTrue, typejoint)if children:for child in children:ordered_joints.extend(get_ordered_joints(child))return ordered_jointsif __name__ __main__:root_joint_name rootroot_joint Nonechildren cmds.listRelatives(root_joint_name, childrenTrue, typejoint)if children:root_joint children[0]else:raise ValueError(fNo joint found under {root_joint_name})joints get_ordered_joints(root_joint)print(joints)start_frame int(cmds.playbackOptions(queryTrue, minTimeTrue))end_frame int(cmds.playbackOptions(queryTrue, maxTimeTrue))# Set the output file pathoutput_file_path os.path.join(os.path.expanduser(~), maya_body_test.bvh)export_bvh(joints, output_file_path, start_frame, end_frame, ZYX)
