Method getTransform

Engine/source/ts/collada/colladaAppNode.cpp:214–263

}

MatrixF ColladaAppNode::getTransform(F32 time)
{
   // Check if we can use the last computed transform
   if (time == lastTransformTime)
      return lastTransform;

   if (appParent) {
      // Get parent node's transform
      lastTransform = appParent->getTransform(time);
   }
   else {
      // no parent (ie. root level) => scale by global shape <unit>
      lastTransform.identity();
      lastTransform.scale(ColladaUtils::getOptions().unit);
      if (!isBounds())
         ColladaUtils::convertTransform(lastTransform);     // don't convert bounds node transform (or upAxis won't work!)
   }

   // Multiply by local node transform elements
   for (S32 iTxfm = 0; iTxfm < nodeTransforms.size(); iTxfm++) {

      MatrixF mat(true);

      // Convert the transform element to a MatrixF
      switch (nodeTransforms[iTxfm].element->getElementType()) {
         case COLLADA_TYPE::TRANSLATE: mat = vecToMatrixF<domTranslate>(nodeTransforms[iTxfm].getValue(time));  break;
         case COLLADA_TYPE::SCALE:     mat = vecToMatrixF<domScale>(nodeTransforms[iTxfm].getValue(time));      break;
         case COLLADA_TYPE::ROTATE:    mat = vecToMatrixF<domRotate>(nodeTransforms[iTxfm].getValue(time));     break;
         case COLLADA_TYPE::MATRIX:    mat = vecToMatrixF<domMatrix>(nodeTransforms[iTxfm].getValue(time));     break;
         case COLLADA_TYPE::SKEW:      mat = vecToMatrixF<domSkew>(nodeTransforms[iTxfm].getValue(time));       break;
         case COLLADA_TYPE::LOOKAT:    mat = vecToMatrixF<domLookat>(nodeTransforms[iTxfm].getValue(time));     break;
      }

      // Remove node scaling (but keep reflections) if desired
      if (ColladaUtils::getOptions().ignoreNodeScale)
      {
         Point3F invScale = mat.getScale();
         invScale.x = invScale.x ? (1.0f / invScale.x) : 0;
         invScale.y = invScale.y ? (1.0f / invScale.y) : 0;
         invScale.z = invScale.z ? (1.0f / invScale.z) : 0;
         mat.scale(invScale);
      }

      // Post multiply the animated transform
      lastTransform.mul(mat);
   }

   lastTransformTime = time;
   return lastTransform;
}