skinned_mesh_internal.h

#pragma once
 
#include "pixelbullet/graphics/mesh_types.h"
 
#include <cstdint>
#include <filesystem>
#include <optional>
#include <string>
#include <vector>
 
namespace pixelbullet
{
class Filesystem;
class VirtualPath;
 
namespace skinned_mesh_internal
{
struct LoadData
{
    std::vector<SkinnedMeshVertex> vertices;
    std::vector<uint32_t> indices;
    std::vector<glm::mat4> inverse_bind_matrices;
    MeshBounds bounds;
    bool has_bounds = false;
};
 
void ResetLoadData(LoadData& data) noexcept;
void IncludeBoundsPosition(LoadData& data, const glm::vec3& position) noexcept;
void GenerateTangents(std::vector<SkinnedMeshVertex>& vertices, const std::vector<uint32_t>& indices,
                      const std::filesystem::path& resolved_path, uint32_t texcoord_index = 0u);
 
[[nodiscard]] bool LoadSkinnedMeshData(const Filesystem& filesystem, const VirtualPath& asset_path, LoadData& data);
[[nodiscard]] std::optional<MeshBounds> LoadSkinnedMeshBounds(const Filesystem& filesystem, const VirtualPath& asset_path);
[[nodiscard]] bool SaveSkinnedMeshData(const Filesystem& filesystem, const VirtualPath& asset_path, const LoadData& data,
                                       std::string* error_message = nullptr);
} // namespace skinned_mesh_internal
} // namespace pixelbullet