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fixed LOD disappear on backing up

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This commit is contained in:
ZappoMan 2013-08-08 16:08:06 -07:00
parent a5459f8ab5
commit 2c96296936
1 changed files with 17 additions and 2 deletions
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19
interface/src/VoxelSystem.cpp
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@ -390,14 +390,29 @@ int VoxelSystem::newTreeToArrays(VoxelNode* node) {
bool shouldRender = false; // assume we don't need to render it
// if it's colored, we might need to render it!
shouldRender = node->calculateShouldRender(Application::getInstance()->getViewFrustum());
node->setShouldRender(shouldRender);
// let children figure out their renderness
if (!node->isLeaf()) {
// As we check our children, see if any of them went from shouldRender to NOT shouldRender
// then we probably dropped LOD and if we don't have color, we want to average our children
// for a new color.
int childrenGotHiddenCount = 0;
for (int i = 0; i < NUMBER_OF_CHILDREN; i++) {
if (node->getChildAtIndex(i)) {
voxelsUpdated += newTreeToArrays(node->getChildAtIndex(i));
VoxelNode* childNode = node->getChildAtIndex(i);
if (childNode) {
bool wasShouldRender = childNode->getShouldRender();
voxelsUpdated += newTreeToArrays(childNode);
bool isShouldRender = childNode->getShouldRender();
if (wasShouldRender && !isShouldRender) {
childrenGotHiddenCount++;
}
}
}
if (childrenGotHiddenCount > 0) {
node->setColorFromAverageOfChildren();
}
}
if (_writeRenderFullVBO) {
voxelsUpdated += updateNodeInArraysAsFullVBO(node);