253 lines
7.8 KiB
C
253 lines
7.8 KiB
C
/*
|
|
* ***** BEGIN GPL LICENSE BLOCK *****
|
|
*
|
|
* 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) 2005 by the Blender Foundation.
|
|
* All rights reserved.
|
|
*
|
|
* Contributor(s): Daniel Dunbar
|
|
* Ton Roosendaal,
|
|
* Ben Batt,
|
|
* Brecht Van Lommel,
|
|
* Campbell Barton
|
|
*
|
|
* ***** END GPL LICENSE BLOCK *****
|
|
*
|
|
*/
|
|
|
|
/** \file blender/modifiers/intern/MOD_subsurf.c
|
|
* \ingroup modifiers
|
|
*/
|
|
|
|
|
|
#include <stddef.h>
|
|
|
|
#include "DNA_object_types.h"
|
|
#include "DNA_scene_types.h"
|
|
#include "DNA_mesh_types.h"
|
|
|
|
#include "BLI_utildefines.h"
|
|
|
|
#include "BKE_cdderivedmesh.h"
|
|
#include "BKE_scene.h"
|
|
#include "BKE_subdiv.h"
|
|
#include "BKE_subdiv_mesh.h"
|
|
#include "BKE_subsurf.h"
|
|
|
|
#include "DEG_depsgraph.h"
|
|
#include "DEG_depsgraph_query.h"
|
|
|
|
#include "MOD_modifiertypes.h"
|
|
|
|
#include "intern/CCGSubSurf.h"
|
|
|
|
static void initData(ModifierData *md)
|
|
{
|
|
SubsurfModifierData *smd = (SubsurfModifierData *) md;
|
|
|
|
smd->levels = 1;
|
|
smd->renderLevels = 2;
|
|
smd->uv_smooth = SUBSURF_UV_SMOOTH_PRESERVE_CORNERS;
|
|
smd->quality = 3;
|
|
}
|
|
|
|
static void copyData(const ModifierData *md, ModifierData *target, const int flag)
|
|
{
|
|
#if 0
|
|
const SubsurfModifierData *smd = (const SubsurfModifierData *) md;
|
|
#endif
|
|
SubsurfModifierData *tsmd = (SubsurfModifierData *) target;
|
|
|
|
modifier_copyData_generic(md, target, flag);
|
|
|
|
tsmd->emCache = tsmd->mCache = NULL;
|
|
}
|
|
|
|
static void freeData(ModifierData *md)
|
|
{
|
|
SubsurfModifierData *smd = (SubsurfModifierData *) md;
|
|
|
|
if (smd->mCache) {
|
|
ccgSubSurf_free(smd->mCache);
|
|
smd->mCache = NULL;
|
|
}
|
|
if (smd->emCache) {
|
|
ccgSubSurf_free(smd->emCache);
|
|
smd->emCache = NULL;
|
|
}
|
|
}
|
|
|
|
static bool isDisabled(const Scene *scene, ModifierData *md, bool useRenderParams)
|
|
{
|
|
SubsurfModifierData *smd = (SubsurfModifierData *) md;
|
|
int levels = (useRenderParams) ? smd->renderLevels : smd->levels;
|
|
|
|
return get_render_subsurf_level(&scene->r, levels, useRenderParams != 0) == 0;
|
|
}
|
|
|
|
static DerivedMesh *applyModifier(
|
|
ModifierData *md, const ModifierEvalContext *ctx,
|
|
DerivedMesh *derivedData)
|
|
{
|
|
SubsurfModifierData *smd = (SubsurfModifierData *) md;
|
|
struct Scene *scene = DEG_get_evaluated_scene(ctx->depsgraph);
|
|
SubsurfFlags subsurf_flags = 0;
|
|
DerivedMesh *result;
|
|
const bool useRenderParams = (ctx->flag & MOD_APPLY_RENDER) != 0;
|
|
const bool isFinalCalc = (ctx->flag & MOD_APPLY_USECACHE) != 0;
|
|
|
|
bool do_cddm_convert = useRenderParams || !isFinalCalc;
|
|
|
|
if (useRenderParams)
|
|
subsurf_flags |= SUBSURF_USE_RENDER_PARAMS;
|
|
if (isFinalCalc)
|
|
subsurf_flags |= SUBSURF_IS_FINAL_CALC;
|
|
if (ctx->object->mode & OB_MODE_EDIT)
|
|
subsurf_flags |= SUBSURF_IN_EDIT_MODE;
|
|
|
|
result = subsurf_make_derived_from_derived(derivedData, smd, scene, NULL, subsurf_flags);
|
|
result->cd_flag = derivedData->cd_flag;
|
|
|
|
{
|
|
DerivedMesh *cddm = CDDM_copy(result);
|
|
result->release(result);
|
|
result = cddm;
|
|
}
|
|
|
|
(void) do_cddm_convert;
|
|
|
|
return result;
|
|
}
|
|
|
|
static DerivedMesh *applyModifierEM(
|
|
ModifierData *md, const ModifierEvalContext *ctx,
|
|
struct BMEditMesh *UNUSED(editData),
|
|
DerivedMesh *derivedData)
|
|
{
|
|
SubsurfModifierData *smd = (SubsurfModifierData *) md;
|
|
struct Scene *scene = DEG_get_evaluated_scene(ctx->depsgraph);
|
|
DerivedMesh *result;
|
|
/* 'orco' using editmode flags would cause cache to be used twice in editbmesh_calc_modifiers */
|
|
SubsurfFlags ss_flags = (ctx->flag & MOD_APPLY_ORCO) ? 0 : (SUBSURF_FOR_EDIT_MODE | SUBSURF_IN_EDIT_MODE);
|
|
|
|
result = subsurf_make_derived_from_derived(derivedData, smd, scene, NULL, ss_flags);
|
|
return result;
|
|
}
|
|
|
|
#ifdef WITH_OPENSUBDIV_MODIFIER
|
|
static int subdiv_levels_for_modifier_get(const SubsurfModifierData *smd,
|
|
const ModifierEvalContext *ctx)
|
|
{
|
|
Scene *scene = DEG_get_evaluated_scene(ctx->depsgraph);
|
|
const bool use_render_params = (ctx->flag & MOD_APPLY_RENDER);
|
|
const int requested_levels = (use_render_params) ? smd->renderLevels
|
|
: smd->levels;
|
|
return get_render_subsurf_level(&scene->r,
|
|
requested_levels,
|
|
use_render_params);
|
|
}
|
|
|
|
static void subdiv_settings_init(SubdivSettings *settings,
|
|
const SubsurfModifierData *smd)
|
|
{
|
|
settings->is_simple = (smd->subdivType == SUBSURF_TYPE_SIMPLE);
|
|
settings->is_adaptive = !settings->is_simple;
|
|
settings->level = smd->quality;
|
|
settings->fvar_linear_interpolation =
|
|
BKE_subdiv_fvar_interpolation_from_uv_smooth(smd->uv_smooth);
|
|
}
|
|
|
|
static void subdiv_mesh_settings_init(SubdivToMeshSettings *settings,
|
|
const SubsurfModifierData *smd,
|
|
const ModifierEvalContext *ctx)
|
|
{
|
|
const int level = subdiv_levels_for_modifier_get(smd, ctx);
|
|
settings->resolution = (1 << level) + 1;
|
|
}
|
|
|
|
static Mesh *applyModifier_subdiv(ModifierData *md,
|
|
const ModifierEvalContext *ctx,
|
|
Mesh *mesh)
|
|
{
|
|
Mesh *result = mesh;
|
|
SubsurfModifierData *smd = (SubsurfModifierData *) md;
|
|
SubdivSettings subdiv_settings;
|
|
subdiv_settings_init(&subdiv_settings, smd);
|
|
SubdivToMeshSettings mesh_settings;
|
|
subdiv_mesh_settings_init(&mesh_settings, smd, ctx);
|
|
if (subdiv_settings.level == 0 || mesh_settings.resolution < 3) {
|
|
/* NOTE: Shouldn't really happen, is supposed to be catched by
|
|
* isDisabled() callback.
|
|
*/
|
|
return result;
|
|
}
|
|
/* TODO(sergey): Try to re-use subdiv when possible. */
|
|
Subdiv *subdiv = BKE_subdiv_new_from_mesh(&subdiv_settings, mesh);
|
|
if (subdiv == NULL) {
|
|
/* Happens on bad topology, ut also on empty input mesh. */
|
|
return result;
|
|
}
|
|
result = BKE_subdiv_to_mesh(subdiv, &mesh_settings, mesh);
|
|
/* TODO(sergey): Cache subdiv somehow. */
|
|
// BKE_subdiv_stats_print(&subdiv->stats);
|
|
BKE_subdiv_free(subdiv);
|
|
return result;
|
|
}
|
|
#endif
|
|
|
|
ModifierTypeInfo modifierType_Subsurf = {
|
|
/* name */ "Subdivision",
|
|
/* structName */ "SubsurfModifierData",
|
|
/* structSize */ sizeof(SubsurfModifierData),
|
|
/* type */ eModifierTypeType_Constructive,
|
|
/* flags */ eModifierTypeFlag_AcceptsMesh |
|
|
eModifierTypeFlag_SupportsMapping |
|
|
eModifierTypeFlag_SupportsEditmode |
|
|
eModifierTypeFlag_EnableInEditmode |
|
|
eModifierTypeFlag_AcceptsCVs,
|
|
|
|
/* copyData */ copyData,
|
|
|
|
/* deformVerts_DM */ NULL,
|
|
/* deformMatrices_DM */ NULL,
|
|
/* deformVertsEM_DM */ NULL,
|
|
/* deformMatricesEM_DM*/NULL,
|
|
/* applyModifier_DM */ applyModifier,
|
|
/* applyModifierEM_DM */applyModifierEM,
|
|
|
|
/* deformVerts */ NULL,
|
|
/* deformMatrices */ NULL,
|
|
/* deformVertsEM */ NULL,
|
|
/* deformMatricesEM */ NULL,
|
|
#ifdef WITH_OPENSUBDIV_MODIFIER
|
|
/* applyModifier */ applyModifier_subdiv,
|
|
#else
|
|
/* applyModifier */ NULL,
|
|
#endif
|
|
/* applyModifierEM */ NULL,
|
|
|
|
/* initData */ initData,
|
|
/* requiredDataMask */ NULL,
|
|
/* freeData */ freeData,
|
|
/* isDisabled */ isDisabled,
|
|
/* updateDepsgraph */ NULL,
|
|
/* dependsOnTime */ NULL,
|
|
/* dependsOnNormals */ NULL,
|
|
/* foreachObjectLink */ NULL,
|
|
/* foreachIDLink */ NULL,
|
|
/* foreachTexLink */ NULL,
|
|
};
|