/**
* collect all nodes
*
* @param branch
*/
private void collectNodes(KNode branch) {
Camera cam = engine.getCamera();
Iterator<KNode> nodeIterator = branch.getLeafs().iterator();
while (nodeIterator.hasNext()) {
KNode n = nodeIterator.next();
n.updateMatrix();
if (n.isVisible()) {
if (n instanceof VisualNode) {
if (cam == null || (cam != null && cam.isVisible((VisualNode) n))) {
visuals.add((VisualNode) n);
}
}
collectNodes(n);
}
}
}
public void renderScene(GL2 gl, KNode branch) {
// enter model view matrix
gl.glMatrixMode(GL2.GL_MODELVIEW);
if (branch.isVisible() == false) return;
if (updateNeeded) {
// collect nodes
visuals.clear();
collectNodes(branch);
}
// TODO: sort nodes, when transformations changed
// TODO: split in transparent / opaque
// render nodes
for (VisualNode n : visuals) {
gl.glPushMatrix();
renderVisualNode(gl, n);
gl.glPopMatrix();
}
}