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Update thirdparty/meshoptimizer to v0.20

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Note: this change completely overwrites the meshoptimizer library source
(from git SHA c21d3be6ddf627f8ca852ba4b6db9903b0557858)
without including any patches; a distance error metric patch is still
needed and will be reapplied in the next commit.

The changes elsewhere are due to a signature change for
meshopt_simplifyWithAttributes.
This commit is contained in:
Arseny Kapoulkine
2023-11-02 14:03:02 -07:00
parent b733901e9e
commit c5f73a1783
10 changed files with 631 additions and 418 deletions
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21
thirdparty/meshoptimizer/vcacheoptimizer.cpp vendored
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@@ -221,9 +221,9 @@ void meshopt_optimizeVertexCacheTable(unsigned int* destination, const unsigned
triangle_scores[i] = vertex_scores[a] + vertex_scores[b] + vertex_scores[c];
}
unsigned int cache_holder[2 * (kCacheSizeMax + 3)];
unsigned int cache_holder[2 * (kCacheSizeMax + 4)];
unsigned int* cache = cache_holder;
unsigned int* cache_new = cache_holder + kCacheSizeMax + 3;
unsigned int* cache_new = cache_holder + kCacheSizeMax + 4;
size_t cache_count = 0;
unsigned int current_triangle = 0;
@@ -260,10 +260,8 @@ void meshopt_optimizeVertexCacheTable(unsigned int* destination, const unsigned
{
unsigned int index = cache[i];
if (index != a && index != b && index != c)
{
cache_new[cache_write++] = index;
}
cache_new[cache_write] = index;
cache_write += (index != a && index != b && index != c);
}
unsigned int* cache_temp = cache;
@@ -305,6 +303,10 @@ void meshopt_optimizeVertexCacheTable(unsigned int* destination, const unsigned
{
unsigned int index = cache[i];
// no need to update scores if we are never going to use this vertex
if (adjacency.counts[index] == 0)
continue;
int cache_position = i >= cache_size ? -1 : int(i);
// update vertex score
@@ -325,11 +327,8 @@ void meshopt_optimizeVertexCacheTable(unsigned int* destination, const unsigned
float tri_score = triangle_scores[tri] + score_diff;
assert(tri_score > 0);
if (best_score < tri_score)
{
best_triangle = tri;
best_score = tri_score;
}
best_triangle = best_score < tri_score ? tri : best_triangle;
best_score = best_score < tri_score ? tri_score : best_score;
triangle_scores[tri] = tri_score;
}