/* * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * * The Original Code is Copyright (C) 2007 by Nicholas Bishop * All rights reserved. */ #pragma once /** \file * \ingroup bke */ #include "BKE_subsurf.h" #include "BLI_compiler_compat.h" #ifdef __cplusplus extern "C" { #endif struct Depsgraph; struct DerivedMesh; struct MDisps; struct Mesh; struct ModifierData; struct MultiresModifierData; struct Object; struct Scene; struct SubdivCCG; struct MLoop; struct MLoopTri; struct MPoly; struct MVert; /** * Delete mesh mdisps and grid paint masks. */ void multires_customdata_delete(struct Mesh *me); void multires_set_tot_level(struct Object *ob, struct MultiresModifierData *mmd, int lvl); void multires_mark_as_modified(struct Depsgraph *depsgraph, struct Object *object, enum MultiresModifiedFlags flags); void multires_flush_sculpt_updates(struct Object *object); void multires_force_sculpt_rebuild(struct Object *object); void multires_force_external_reload(struct Object *object); /* internal, only called in subsurf_ccg.c */ void multires_modifier_update_mdisps(struct DerivedMesh *dm, struct Scene *scene); void multires_modifier_update_hidden(struct DerivedMesh *dm); /** * Reset the multi-res levels to match the number of mdisps. */ void multiresModifier_set_levels_from_disps(struct MultiresModifierData *mmd, struct Object *ob); typedef enum { MULTIRES_USE_LOCAL_MMD = 1, MULTIRES_USE_RENDER_PARAMS = 2, MULTIRES_ALLOC_PAINT_MASK = 4, MULTIRES_IGNORE_SIMPLIFY = 8, } MultiresFlags; struct DerivedMesh *multires_make_derived_from_derived(struct DerivedMesh *dm, struct MultiresModifierData *mmd, struct Scene *scene, struct Object *ob, MultiresFlags flags); struct MultiresModifierData *find_multires_modifier_before(struct Scene *scene, struct ModifierData *lastmd); /** * used for applying scale on mdisps layer and syncing subdivide levels when joining objects. * \param use_first: return first multi-res modifier if all multi-res'es are disabled. */ struct MultiresModifierData *get_multires_modifier(struct Scene *scene, struct Object *ob, bool use_first); int multires_get_level(const struct Scene *scene, const struct Object *ob, const struct MultiresModifierData *mmd, bool render, bool ignore_simplify); /** * Creates mesh with multi-res modifier applied on current object's deform mesh. */ struct Mesh *BKE_multires_create_mesh(struct Depsgraph *depsgraph, struct Object *object, struct MultiresModifierData *mmd); /** * Get coordinates of a deformed base mesh which is an input to the given multi-res modifier. * \note The modifiers will be re-evaluated. */ float (*BKE_multires_create_deformed_base_mesh_vert_coords(struct Depsgraph *depsgraph, struct Object *object, struct MultiresModifierData *mmd, int *r_num_deformed_verts))[3]; /** * \param direction: 1 for delete higher, 0 for lower (not implemented yet). */ void multiresModifier_del_levels(struct MultiresModifierData *mmd, struct Scene *scene, struct Object *object, int direction); void multiresModifier_base_apply(struct Depsgraph *depsgraph, struct Object *object, struct MultiresModifierData *mmd); int multiresModifier_rebuild_subdiv(struct Depsgraph *depsgraph, struct Object *object, struct MultiresModifierData *mmd, int rebuild_limit, bool switch_view_to_lower_level); /** * If `ob_src` and `ob_dst` both have multi-res modifiers, * synchronize them such that `ob_dst` has the same total number of levels as `ob_src`. */ void multiresModifier_sync_levels_ex(struct Object *ob_dst, struct MultiresModifierData *mmd_src, struct MultiresModifierData *mmd_dst); void multires_stitch_grids(struct Object *); void multiresModifier_scale_disp(struct Depsgraph *depsgraph, struct Scene *scene, struct Object *ob); void multiresModifier_prepare_join(struct Depsgraph *depsgraph, struct Scene *scene, struct Object *ob, struct Object *to_ob); int multires_mdisp_corners(struct MDisps *s); /** * Update multi-res data after topology changing. */ void multires_topology_changed(struct Mesh *me); /** * Makes sure data from an external file is fully read. * * Since the multi-res data files only contain displacement vectors without knowledge about * subdivision level some extra work is needed. Namely make is to all displacement grids have * proper level and number of displacement vectors set. */ void multires_ensure_external_read(struct Mesh *mesh, int top_level); void multiresModifier_ensure_external_read(struct Mesh *mesh, const struct MultiresModifierData *mmd); /**** interpolation stuff ****/ /* Adapted from `sculptmode.c` */ void old_mdisps_bilinear(float out[3], float (*disps)[3], int st, float u, float v); /** * Find per-corner coordinate with given per-face UV coord. */ int mdisp_rot_face_to_crn(struct MVert *mvert, struct MPoly *mpoly, struct MLoop *mloop, const struct MLoopTri *lt, int face_side, float u, float v, float *x, float *y); /* Reshaping, define in multires_reshape.c */ bool multiresModifier_reshapeFromVertcos(struct Depsgraph *depsgraph, struct Object *object, struct MultiresModifierData *mmd, const float (*vert_coords)[3], int num_vert_coords); /** * Returns truth on success, false otherwise. * * This function might fail in cases like source and destination not having * matched amount of vertices. */ bool multiresModifier_reshapeFromObject(struct Depsgraph *depsgraph, struct MultiresModifierData *mmd, struct Object *dst, struct Object *src); bool multiresModifier_reshapeFromDeformModifier(struct Depsgraph *depsgraph, struct Object *ob, struct MultiresModifierData *mmd, struct ModifierData *deform_md); bool multiresModifier_reshapeFromCCG(int tot_level, struct Mesh *coarse_mesh, struct SubdivCCG *subdiv_ccg); /* Subdivide multi-res displacement once. */ typedef enum eMultiresSubdivideModeType { MULTIRES_SUBDIVIDE_CATMULL_CLARK, MULTIRES_SUBDIVIDE_SIMPLE, MULTIRES_SUBDIVIDE_LINEAR, } eMultiresSubdivideModeType; void multiresModifier_subdivide(struct Object *object, struct MultiresModifierData *mmd, eMultiresSubdivideModeType mode); void multires_subdivide_create_tangent_displacement_linear_grids(struct Object *object, struct MultiresModifierData *mmd); /** * Subdivide displacement to the given level. * If level is lower than the current top level nothing happens. */ void multiresModifier_subdivide_to_level(struct Object *object, struct MultiresModifierData *mmd, int top_level, eMultiresSubdivideModeType mode); /* Subdivision integration, defined in multires_subdiv.c */ struct SubdivSettings; struct SubdivToMeshSettings; void BKE_multires_subdiv_settings_init(struct SubdivSettings *settings, const struct MultiresModifierData *mmd); /* TODO(sergey): Replace this set of boolean flags with bitmask. */ void BKE_multires_subdiv_mesh_settings_init(struct SubdivToMeshSettings *mesh_settings, const struct Scene *scene, const struct Object *object, const struct MultiresModifierData *mmd, bool use_render_params, bool ignore_simplify, bool ignore_control_edges); /* General helpers. */ /** * For a given partial derivatives of a PTEX face get tangent matrix for displacement. * * Corner needs to be known to properly "rotate" partial derivatives when the * matrix is being constructed for quad. For non-quad the corner is to be set to 0. */ BLI_INLINE void BKE_multires_construct_tangent_matrix(float tangent_matrix[3][3], const float dPdu[3], const float dPdv[3], int corner); /* Versioning. */ /** * Convert displacement which is stored for simply-subdivided mesh to a Catmull-Clark * subdivided mesh. */ void multires_do_versions_simple_to_catmull_clark(struct Object *object, struct MultiresModifierData *mmd); #ifdef __cplusplus } #endif #include "intern/multires_inline.h"