一些重要的mel命令

时间：2023-03-09 07:56:47
一些重要的mel命令
一些重要的mel命令

查询多边形顶点 

  1. xform -q -worldSpace -t "pCylinderShape1.vtx[0]"

设置顶点坐标
  1. xform -objectSpace -t $x $y $z "pCylinderShape1.vtx[0]"
获取多边形的信息
    

  1. // query the number of faces
    2. 

  2. polyEvaluate -f;
    3. 

  3. // Result: 16
    4. 

    5. 

  5. // query the number of triangles
    6. 

  6. polyEvaluate -t;
    7. 

  7. // Result: 32
    8. 

    9. 

  9. // query the number of selected faces
    10. 

  10. polyEvaluate -faceComponent;
    11. 

  11. // Result: 2
    12. 

    13. 

  13. // query the number of vertices and faces
    14. 

  14. polyEvaluate -v -f;
    15. 

  15. // Result: 25 16
    16. 

    17. 

  17. // formatted query of the number of vertices and faces
    18. 

  18. polyEvaluate -v -f -fmt;
    19. 

  19. // Result: vertex=25 face=16
    20.
获取某个节点的连接信息
    

  1. // List all connections to BALL
    2. 

  2. string $list[] = `listConnections BALL`;
    3. 

  3. // List only incoming connections from BALL.tx
    4. 

  4. listConnections -d off -s on BALL.tx;
    5. 

  5. // List connections from BALL to nodes of type 'transform'
    6. 

  6. listConnections -t transform;
    7. 

  7. // List connections on BALL, ignoring unit conversion nodes
    8. 

  8. listConnections -scn on BALL;
    9.
创建、取消节点连接
    

  1. // Connect the translation of two nodes together
    2. 

  2. connectAttr firstGuy.t secondGuy.translate;
    3. 

    4. 

  4. // Connect the rotation of one node to the override colour
    5. 

  5. // of a second node.
    6. 

  6. connectAttr firstGuy.rotate secondGuy.overrideColor;
    7. 

    8. 

  8. //    Break the connection between the rotate attributes.
    9. 

  9. //
    10. 

  10. disconnectAttr ($sph[0] + ".r") ($con[0] + ".r");
    11.
由变换节点获得形状节点
    

  1. $shapes = `listRelatives -shapes pCylinder1`;
    2. 

    3. 

  3. // List the name of the shape below the transform node.
    4. 

  4. // (The result of the command is shown)
    5. 

  5. string $shapes[] = `listRelatives -s -path "nexus"`;
    6. 

  6. // Result: nexus|nexusShape //
    7.
粒子系统相关命令
    

  1. clearParticleStartState $ptclShape;             // 把粒子的初始状态设为空，也就是清除所有粒子
    2. 

  2. emit -object $ptclShape -pos $x $y $z;          // 往粒子系统添加粒子
    3. 

  3. saveInitialState $ptclShape;                    // 把当前状态设置为初始状态
    4.


自定义命令的注意事项

flag的短名称必须全部小写


相关文章