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Optimize AABB calculation in software skinning #53190

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Sep 29, 2021
Merged

Optimize AABB calculation in software skinning #53190

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18 changes: 9 additions & 9 deletions scene/3d/mesh_instance.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -390,8 +390,8 @@ void MeshInstance::_update_skinning() {
RID skeleton = skin_ref->get_skeleton();
ERR_FAIL_COND(!skeleton.is_valid());

AABB aabb;
bool first_vertex = true;
Vector3 aabb_min = Vector3(FLT_MAX, FLT_MAX, FLT_MAX);
Vector3 aabb_max = Vector3(-FLT_MAX, -FLT_MAX, -FLT_MAX);

VisualServer *visual_server = VisualServer::get_singleton();

Expand Down Expand Up @@ -503,18 +503,18 @@ void MeshInstance::_update_skinning() {
}
}

if (first_vertex) {
aabb.position = vertex;
first_vertex = false;
} else {
aabb.expand_to(vertex);
}
aabb_min.x = MIN(aabb_min.x, vertex.x);
aabb_min.y = MIN(aabb_min.y, vertex.y);
aabb_min.z = MIN(aabb_min.z, vertex.z);
aabb_max.x = MAX(aabb_max.x, vertex.x);
aabb_max.y = MAX(aabb_max.y, vertex.y);
aabb_max.z = MAX(aabb_max.z, vertex.z);
}

visual_server->mesh_surface_update_region(mesh_rid, surface_index, 0, buffer);
}

visual_server->mesh_set_custom_aabb(mesh_rid, aabb);
visual_server->mesh_set_custom_aabb(mesh_rid, AABB(aabb_min, aabb_max - aabb_min));

software_skinning_flags |= SoftwareSkinning::FLAG_BONES_READY;
}
Expand Down