mirror of
https://github.com/Relintai/pandemonium_engine.git
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116 lines
6.6 KiB
C++
116 lines
6.6 KiB
C++
#ifndef MERGING_TOOL_H
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#define MERGING_TOOL_H
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/*************************************************************************/
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/* merging_tool.h */
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/*************************************************************************/
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/* This file is part of: */
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/* PANDEMONIUM ENGINE */
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/* https://github.com/Relintai/pandemonium_engine */
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/*************************************************************************/
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/* Copyright (c) 2022-present Péter Magyar. */
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/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "core/containers/local_vector.h"
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#include "core/containers/vector.h"
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#include "scene/resources/mesh/mesh.h"
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class MeshInstance;
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class GeometryInstance;
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class CSGShape;
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class SurfaceTool;
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struct CSGBrush;
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#ifdef DEV_ENABLED
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// Only enable this for development testing.
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// #define PANDEMONIUM_MERGING_VERBOSE
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#endif
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// NOTE : These merging and joining functions DO NOT move children, or delete source nodes. That is the responsibility of the caller.
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class MergingTool {
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public:
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// Are two mesh instances mergeable with each other?
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static bool is_mergeable_with(const MeshInstance &p_mi, const MeshInstance &p_other, bool p_check_surface_material_match);
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static bool is_shadow_mergeable_with(const MeshInstance &p_mi, const MeshInstance &p_other);
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// Merges all mesh details.
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static bool merge_meshes(MeshInstance &r_dest_mi, Vector<MeshInstance *> p_list, bool p_use_global_space, bool p_check_compatibility);
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// Join all surfaces into one ubermesh.
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static bool join_meshes(MeshInstance &r_dest_mi, Vector<MeshInstance *> p_list);
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// Adds a surface from one mesh to another.
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static bool join_mesh_surface(const MeshInstance &p_source_mi, uint32_t p_source_surface_id, MeshInstance &r_dest_mi);
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// Only concerned with data necessary for shadow proxy - opaque tris, no normals / tangents / uvs etc.
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static bool merge_shadow_meshes(MeshInstance &r_dest_mi, Vector<MeshInstance *> p_list, bool p_use_global_space, bool p_check_compatibility);
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// For splitting a MeshInstance with multiple surfaces to a MeshInstance per surface.
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static bool split_surface_to_mesh_instance(const MeshInstance &p_source_mi, int p_surface_id, MeshInstance &r_mi);
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// Convert a CSG surface to MeshInstance.
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static bool split_csg_surface_to_mesh_instance(const CSGShape &p_shape, MeshInstance &r_mi, const Ref<ArrayMesh> &p_array_mesh, CSGBrush *p_brush, int p_surface);
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// Remove degenerate triangles.
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static bool clean_mesh_instance(MeshInstance &p_mi);
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static void split_mesh_instance_by_locality(MeshInstance &r_mi, const AABB &p_bound, uint32_t p_splits_horz, uint32_t p_splits_vert, uint32_t p_min_split_poly_count);
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// For debugging purposes.
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static void debug_mesh_instance(const MeshInstance &p_mi);
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#ifdef DEV_ENABLED
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static void debug_branch(Node *p_node, const char *p_title = nullptr, int p_depth = 0);
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#endif
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#ifdef TOOLS_ENABLED
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static void append_editor_description(Node *p_node, String p_string, Node *p_node_named = nullptr);
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#endif
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// Helper functions (used from MergeGroup).
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static void _set_owner_logged(Node *p_node, Node *p_owner);
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static void _reparent(Node *p_branch, Node *p_new_parent, Node *p_new_owner);
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static void _invalidate_owner_recursive(Node *p_node, Node *p_old_owner, Node *p_new_owner);
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static bool _node_has_valid_children(Node *p_node);
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static void _mesh_set_storage_mode(Mesh *p_mesh, Mesh::StorageMode p_mode);
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private:
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static void _reparent_subscene_send_new_owner(Node *p_node, Node *p_new_owner);
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static void _copy_mesh_instance_settings(const MeshInstance &p_source, MeshInstance &r_dest, bool p_copy_transform, bool p_copy_materials);
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static bool _is_mergeable_with_common(const MeshInstance &p_mi, const MeshInstance &p_other);
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static bool _is_shadow_mergeable(const MeshInstance &p_mi);
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static bool _is_material_opaque(const Ref<Material> &p_mat);
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static bool _ensure_indices_valid(LocalVector<int> &r_indices, const PoolVector<Vector3> &p_verts);
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static bool _check_for_valid_indices(const LocalVector<int> &p_inds, const PoolVector<Vector3> &p_verts, LocalVector<int> *r_inds);
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static bool _triangle_is_degenerate(const Vector3 &p_a, const Vector3 &p_b, const Vector3 &p_c, real_t p_epsilon);
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static int _clean_mesh_surface(const String &p_source_name, const Transform &p_xform, Ref<Mesh> &p_rmesh, int p_surface_id, Ref<ArrayMesh> r_dest_mesh);
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static void _copy_geometry_instance_settings(const GeometryInstance &p_source, MeshInstance &r_dest, bool p_copy_transform);
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static void _set_rmesh_material(MeshInstance &r_mi, Ref<Mesh> r_rmesh, int p_surface_id, Ref<Material> p_material);
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static void _split_mesh_instance_by_locality(const SurfaceTool &p_st_main, const MeshInstance &p_source_mi, const LocalVector<uint32_t> &p_tri_ids, uint32_t p_local_id, uint32_t p_surface_id, uint32_t p_x, uint32_t p_y, uint32_t p_z);
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static void _merge_log(String p_string, int p_priority = 1);
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};
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#endif // MERGING_TOOL_H
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