INNER CODE UNIT · C++
last_lod
oxylusengine/Oxylus · ResourceCompiler/private/ModelCompiler.cpp:311
const auto& last_lod = mesh.lods[lod_index - 1];
auto lod_index_count = ((last_lod_indices.size() + 5_sz) / 6_sz) * 3_sz;
simplified_indices.resize(last_lod_indices.size(), 0_u32);
constexpr auto TARGET_ERROR = std::numeric_limits<f32>::max();
constexpr f32 NORMAL_WEIGHTS[] = {1.0f, 1.0f, 1.0f};
auto result_error = 0.0f;
// A primitive without NORMAL leaves nothing to weight the attribute error by, and handing
// meshoptimizer a null attribute buffer dereferences it.
auto result_index_count = normals.empty() ? meshopt_simplify(
simplified_indices.data(),
last_lod_indices.data(),
last_lod_indices.size(),
reinterpret_cast<const f32*>(positions.data()),
vertex_count,
sizeof(glm::vec3),
lod_index_count,
TARGET_ERROR,