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~ | small fix in topbvh stats calculation

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TheRedShip
2025-01-23 16:04:34 +01:00
parent 6b7523724d
commit baf8d9cbd3
2 changed files with 9 additions and 10 deletions
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15
srcs/class/TopBVH.cpp
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@ -237,21 +237,20 @@ TopBVHStats TopBVH::analyzeBVHLeaves()
// Get stats from left and right subtrees
TopBVHStats left = _left->analyzeBVHLeaves();
TopBVHStats right = _left->analyzeBVHLeaves();
TopBVHStats right = _right->analyzeBVHLeaves();
// Combine the results
int min_count = std::min(left.min_bvh, right.min_bvh);
int max_count = std::max(left.max_bvh, right.max_bvh);
// Calculate weighted average based on number of leaves in each subtree
float left_leaf_count = (left.average_bvh > 0) ? 1.0f : 0.0f;
float right_leaf_count = (right.average_bvh > 0) ? 1.0f : 0.0f;
float total_leaf_count = left_leaf_count + right_leaf_count;
float left_weighted = left.average_bvh * (left.max_bvh - left.min_bvh + 1);
float right_weighted = right.average_bvh * (right.max_bvh - right.min_bvh + 1);
int total_count = (left.max_bvh - left.min_bvh + 1) + (right.max_bvh - right.min_bvh + 1);
float avg_count = 0.0f;
if (total_leaf_count > 0)
avg_count = (left.average_bvh * left_leaf_count +
right.average_bvh * right_leaf_count) / total_leaf_count;
if (total_count > 0)
avg_count = (left_weighted + right_weighted) / total_count;
return {min_count, max_count, avg_count};
}