scene_convert.h

/*
 * Copyright 2025 Adobe. All rights reserved.
 * This file is licensed to you under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. You may obtain a copy
 * of the License at http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under
 * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
 * OF ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
#pragma once
 
#include <lagrange/SurfaceMesh.h>
#include <lagrange/scene/Scene.h>
#include <lagrange/scene/SimpleScene.h>
#include <lagrange/types/TransformOptions.h>
 
#include <vector>
 
// TODO: We're still missing scene <-> simple scene conversion functions.
namespace lagrange::scene {

template <typename Scalar, typename Index>
Scene<Scalar, Index> mesh_to_scene(SurfaceMesh<Scalar, Index> mesh);

template <typename Scalar, typename Index>
Scene<Scalar, Index> meshes_to_scene(std::vector<SurfaceMesh<Scalar, Index>> meshes);

template <typename Scalar, typename Index>
SurfaceMesh<Scalar, Index> scene_to_mesh(
    const Scene<Scalar, Index>& scene,
    const TransformOptions& transform_options = {},
    bool preserve_attributes = true);

template <typename Scalar, typename Index>
std::vector<SurfaceMesh<Scalar, Index>> scene_to_meshes(
    const Scene<Scalar, Index>& scene,
    const TransformOptions& transform_options = {});

template <typename Scalar, typename Index>
SimpleScene<Scalar, Index> scene_to_simple_scene(const Scene<Scalar, Index>& scene);

template <typename Scalar, typename Index>
Scene<Scalar, Index> simple_scene_to_scene(const SimpleScene<Scalar, Index>& simple_scene);

template <typename Scalar, typename Index>
struct MeshesAndMaterialsResult
{
    std::vector<SurfaceMesh<Scalar, Index>> meshes;

    std::vector<std::vector<ElementId>> material_ids;
};

template <typename Scalar, typename Index>
MeshesAndMaterialsResult<Scalar, Index> scene_to_meshes_and_materials(
    const Scene<Scalar, Index>& scene,
    const TransformOptions& transform_options = {});
 
 
} // namespace lagrange::scene