/** Should only be called from updateGeometricState(). In most cases should not be subclassed. */
protected void updateWorldTransforms() {
if (parent == null) {
worldTransform.set(localTransform);
refreshFlags &= ~RF_TRANSFORM;
} else {
// check if transform for parent is updated
assert ((parent.refreshFlags & RF_TRANSFORM) == 0);
worldTransform.set(localTransform);
worldTransform.combineWithParent(parent.worldTransform);
refreshFlags &= ~RF_TRANSFORM;
}
}
/** Computes the world transform of this Spatial in the most efficient manner possible. */
void checkDoTransformUpdate() {
if ((refreshFlags & RF_TRANSFORM) == 0) {
return;
}
if (parent == null) {
worldTransform.set(localTransform);
refreshFlags &= ~RF_TRANSFORM;
} else {
TempVars vars = TempVars.get();
Spatial[] stack = vars.spatialStack;
Spatial rootNode = this;
int i = 0;
while (true) {
Spatial hisParent = rootNode.parent;
if (hisParent == null) {
rootNode.worldTransform.set(rootNode.localTransform);
rootNode.refreshFlags &= ~RF_TRANSFORM;
i--;
break;
}
stack[i] = rootNode;
if ((hisParent.refreshFlags & RF_TRANSFORM) == 0) {
break;
}
rootNode = hisParent;
i++;
}
vars.release();
for (int j = i; j >= 0; j--) {
rootNode = stack[j];
// rootNode.worldTransform.set(rootNode.localTransform);
// rootNode.worldTransform.combineWithParent(rootNode.parent.worldTransform);
// rootNode.refreshFlags &= ~RF_TRANSFORM;
rootNode.updateWorldTransforms();
}
}
}