Changeset 8560 in orxonox.OLD for branches/bsp_model/src/lib/graphics

Timestamp:

Jun 17, 2006, 12:22:53 PM (18 years ago)

Author:

patrick

Message:

bsp: new quaterinon constructor created for 3x3 matrices, bone rotation interpolation via quaternions implemented

Location:

branches/bsp_model/src/lib/graphics/importer/md3

Files:

• md3_model.cc (modified) (2 diffs)
• md3_model.h (modified) (1 diff)

branches/bsp_model/src/lib/graphics/importer/md3/md3_model.cc

@@ -25 +25 @@
 
 #include "material.h"
+#include "quaternion.h"
 
 namespace md3
@@ -266 +267 @@
    */
   float* MD3Model::interpolateTransformation(MD3Tag* currFrameTag, MD3Tag* nextFrameTag, float frac)
-  {}
+  {
+    // interpolate position
+    Vector interpolatedPosition = currFrameTag->position * (1.0f - frac) + nextFrameTag->position * frac;
+
+
+    // interpolate rotation matrix
+    float  currRot[4][4];
+    float  nextRot[4][4];
+    float  interpolatedMatrix[4][4];
+
+    Quaternion currQuat(currFrameTag->matrix); currQuat.matrix(currRot);
+    Quaternion nextQuat(nextFrameTag->matrix); nextQuat.matrix(nextRot);
+
+    Quaternion interpolatedQuat = Quaternion::quatSlerp(currQuat, nextQuat, frac); interpolatedQuat.matrix(interpolatedMatrix);
+
+    // quaternion code is column based, so use transposed matrix when spitting out to gl
+    this->tmpMatrix[0] = interpolatedMatrix[0][0];
+    this->tmpMatrix[4] = interpolatedMatrix[1][0];
+    this->tmpMatrix[8] = interpolatedMatrix[2][0];
+    this->tmpMatrix[12] = interpolatedPosition.x;
+    this->tmpMatrix[1] = interpolatedMatrix[0][1];
+    this->tmpMatrix[5] = interpolatedMatrix[1][1];
+    this->tmpMatrix[9] = interpolatedMatrix[2][1];
+    this->tmpMatrix[13] = interpolatedPosition.y;
+    this->tmpMatrix[2] = interpolatedMatrix[0][2];
+    this->tmpMatrix[6] = interpolatedMatrix[1][2];
+    this->tmpMatrix[10]= interpolatedMatrix[2][2];
+    this->tmpMatrix[14] = interpolatedPosition.z;
+    this->tmpMatrix[3] = 0.0f;
+    this->tmpMatrix[7] = 0.0f;
+    this->tmpMatrix[11]= 0.0f;
+    this->tmpMatrix[15] = 1.0f;
+
+    return this->tmpMatrix;
+
+  }
 
 

branches/bsp_model/src/lib/graphics/importer/md3/md3_model.h

@@ -62 +62 @@
     sVec3D*             tmpMesh;           //!< a temporary mesh frame
     MD3Normal*          tmpNormal;         //!< a temporary normals frame
+    float               tmpMatrix[16];     //!< a temporary matrix
 };