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SI_Animation ParamKey

Defines animation of any template parameter.

Softimage Version

v1.3. Made obsolete in v2.0.

Members

Comments

This template works by considering the referenced template as a structure indexed by the parameterIndex value. For example, the following definition shows how the parameters in a SI_Camera template are indexed:

// The members of a template are indexed starting from 0: 
SI_Camera Camera1 {
   0.000000; 2.000000; 20.000000;; // Camera1[0] = camera position vector 
   0.000000; -3.404255; 0.000000;; // Camera1[1] = interest position vector 
   0.000000;         // Camera1[2] = roll 
   41.539440;        // Camera1[3] = field of view 
   0.100000;         // Camera1[4] = near plane 
   32768.000000;     // Camera1[5] = far plane 
}

Example: Camera Interest

This example shows how to animate the position of the camera interest:

// Define a camera instance 
SI_Camera Camera1 {
   0.000000; 2.000000; 20.000000;;
   0.000000; -3.404255; 0.000000;; // Camera1[1] = interest position vector
   0.000000;
   41.539440;
   0.100000;
   32768.000000;
}

AnimationSet {
   Animation anim-Camera1 {
       {SCENE}

       SI_AnimationParamKey {
          {Camera1} // reference to the camera data object 
          1;  // Camera1[1] is the interest vector 
          2;  // vector animation key 
          59; // 59 animation keys to follow: 
          // animation keys 
          // <frame>; <nValues>; <value1>; ... <valueN>;; 
          1; 3; 0.000000, -3.404255, 0.000000;;,
          2; 3; 0.000000, -3.341151, 0.000000;;,
          3; 3; 0.000000, -3.161310, 0.000000;;,
          // other keys snipped... 
          100; 3; 0.000000, 19.347515, 0.000000;;;
       }
   }
}

Example: Mesh Vertex Positions

This example shows how to animate the positions of polygon mesh vertices.

Frame frm-cube1 {

   FrameTransformMatrix {
       1.000000,0.000000,0.000000,0.000000,
       0.000000,1.000000,0.000000,0.000000,
       0.000000,0.000000,1.000000,0.000000,
       0.000000,0.000000,0.000000,1.000000;;
   }

   Mesh cube1 {
       8;                   // cube1[0] = number of vertices 
       -0.500000;-0.500000;-0.500000;, // cube1[1] = vertex 0 
       -0.500000;-0.500000;0.500000;, // cube1[2] = vertex 1 
       -0.500000;0.500000;-0.500000;, // cube1[3] = vertex 2 
       -0.500000;0.500000;0.500000;, // cube1[4] = vertex 3 
       0.500000;-0.500000;-0.500000;, // cube1[5] = vertex 4 
       0.500000;-0.500000;0.500000;, // cube1[6] = vertex 5 
       0.500000;0.500000;-0.500000;, // cube1[7] = vertex 6 
       0.500000;0.500000;0.500000;; // cube1[8] = vertex 7 

       6;                   // 6 polygons 
       4;0,1,3,2;,
       4;1,5,7,3;,
       4;5,4,6,7;,
       4;4,0,2,6;,
       4;4,5,1,0;,
       4;2,3,7,6;;

       MeshMaterialList {
          ...
          SI_Material {
              ...
          }
       }
       SI_MeshNormals {
       ...
       }
   }
}
// Vertex position animation. 
// Note that while .XSI Export puts each SI_AnimationParamKey in a separate 
// Animation block, you can put multiple SI_AnimationParamKey in a single 
// Animation block and .XSI Import will load it correctly. 

AnimationSet {
   Animation anim-cube1 {
       {frm-cube1}

       SI_AnimationParamKey { // keys for vertex 1
          {cube1}        // reference to cube1 template 
          2;                // index of vertex 1 in the cube1 template 
          2;                // vector keys 
          77;            // 77 keys 
          1; 3; -0.500000, -0.500000, 0.500000;;,
          2; 3; -0.527668, -0.516229, 0.510289;;,
          3; 3; -0.605175, -0.561691, 0.539113;;,
          ...
          100; 3; -0.500000, -0.500000, 0.500000;;;
       }
   }
   Animation anim-cube1 {
       {frm-cube1}

       SI_AnimationParamKey { // keys for vertex 6
          {cube1}        // reference to cube1 template 
          7;                // index of vertex 6 in the cube1 template 
          2;                // vector keys 
          77;            // 77 keys 
          1; 3; 0.500000, 0.500000, -0.500000;;,
          2; 3; 0.500000, 0.500000, -0.500000;;,
          3; 3; 0.500000, 0.500000, -0.500000;;,
          ...
          100; 3; 0.500000, 0.500000, -0.500000;;;
       }
   }
}

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