445 lines
14 KiB
C++
445 lines
14 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup bke
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*/
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#include "MEM_guardedalloc.h"
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#include "DNA_defaults.h"
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#include "DNA_material_types.h"
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#include "DNA_object_types.h"
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#include "DNA_pointcloud_types.h"
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#include "BLI_bounds.hh"
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#include "BLI_index_range.hh"
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#include "BLI_listbase.h"
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#include "BLI_math_vec_types.hh"
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#include "BLI_rand.h"
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#include "BLI_span.hh"
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#include "BLI_string.h"
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#include "BLI_task.hh"
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#include "BLI_utildefines.h"
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#include "BLI_vector.hh"
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#include "BKE_anim_data.h"
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#include "BKE_customdata.h"
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#include "BKE_geometry_set.hh"
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#include "BKE_global.h"
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#include "BKE_idtype.h"
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#include "BKE_lib_id.h"
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#include "BKE_lib_query.h"
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#include "BKE_lib_remap.h"
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#include "BKE_main.h"
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#include "BKE_mesh_wrapper.h"
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#include "BKE_modifier.h"
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#include "BKE_object.h"
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#include "BKE_pointcloud.h"
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#include "BLT_translation.h"
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#include "DEG_depsgraph_query.h"
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#include "BLO_read_write.h"
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using blender::float3;
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using blender::IndexRange;
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using blender::Span;
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using blender::Vector;
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/* PointCloud datablock */
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static void pointcloud_random(PointCloud *pointcloud);
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const char *POINTCLOUD_ATTR_POSITION = "position";
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const char *POINTCLOUD_ATTR_RADIUS = "radius";
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static void pointcloud_init_data(ID *id)
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{
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PointCloud *pointcloud = (PointCloud *)id;
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BLI_assert(MEMCMP_STRUCT_AFTER_IS_ZERO(pointcloud, id));
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MEMCPY_STRUCT_AFTER(pointcloud, DNA_struct_default_get(PointCloud), id);
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CustomData_reset(&pointcloud->pdata);
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CustomData_add_layer_named(&pointcloud->pdata,
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CD_PROP_FLOAT3,
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CD_CALLOC,
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nullptr,
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pointcloud->totpoint,
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POINTCLOUD_ATTR_POSITION);
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BKE_pointcloud_update_customdata_pointers(pointcloud);
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}
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static void pointcloud_copy_data(Main *UNUSED(bmain), ID *id_dst, const ID *id_src, const int flag)
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{
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PointCloud *pointcloud_dst = (PointCloud *)id_dst;
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const PointCloud *pointcloud_src = (const PointCloud *)id_src;
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pointcloud_dst->mat = static_cast<Material **>(MEM_dupallocN(pointcloud_src->mat));
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const eCDAllocType alloc_type = (flag & LIB_ID_COPY_CD_REFERENCE) ? CD_REFERENCE : CD_DUPLICATE;
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CustomData_copy(&pointcloud_src->pdata,
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&pointcloud_dst->pdata,
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CD_MASK_ALL,
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alloc_type,
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pointcloud_dst->totpoint);
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BKE_pointcloud_update_customdata_pointers(pointcloud_dst);
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pointcloud_dst->batch_cache = nullptr;
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}
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static void pointcloud_free_data(ID *id)
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{
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PointCloud *pointcloud = (PointCloud *)id;
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BKE_animdata_free(&pointcloud->id, false);
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BKE_pointcloud_batch_cache_free(pointcloud);
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CustomData_free(&pointcloud->pdata, pointcloud->totpoint);
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MEM_SAFE_FREE(pointcloud->mat);
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}
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static void pointcloud_foreach_id(ID *id, LibraryForeachIDData *data)
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{
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PointCloud *pointcloud = (PointCloud *)id;
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for (int i = 0; i < pointcloud->totcol; i++) {
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BKE_LIB_FOREACHID_PROCESS_IDSUPER(data, pointcloud->mat[i], IDWALK_CB_USER);
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}
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}
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static void pointcloud_blend_write(BlendWriter *writer, ID *id, const void *id_address)
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{
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PointCloud *pointcloud = (PointCloud *)id;
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Vector<CustomDataLayer, 16> point_layers;
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CustomData_blend_write_prepare(pointcloud->pdata, point_layers);
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/* Write LibData */
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BLO_write_id_struct(writer, PointCloud, id_address, &pointcloud->id);
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BKE_id_blend_write(writer, &pointcloud->id);
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/* Direct data */
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CustomData_blend_write(writer,
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&pointcloud->pdata,
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point_layers,
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pointcloud->totpoint,
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CD_MASK_ALL,
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&pointcloud->id);
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BLO_write_pointer_array(writer, pointcloud->totcol, pointcloud->mat);
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if (pointcloud->adt) {
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BKE_animdata_blend_write(writer, pointcloud->adt);
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}
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}
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static void pointcloud_blend_read_data(BlendDataReader *reader, ID *id)
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{
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PointCloud *pointcloud = (PointCloud *)id;
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BLO_read_data_address(reader, &pointcloud->adt);
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BKE_animdata_blend_read_data(reader, pointcloud->adt);
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/* Geometry */
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CustomData_blend_read(reader, &pointcloud->pdata, pointcloud->totpoint);
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BKE_pointcloud_update_customdata_pointers(pointcloud);
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/* Materials */
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BLO_read_pointer_array(reader, (void **)&pointcloud->mat);
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}
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static void pointcloud_blend_read_lib(BlendLibReader *reader, ID *id)
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{
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PointCloud *pointcloud = (PointCloud *)id;
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for (int a = 0; a < pointcloud->totcol; a++) {
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BLO_read_id_address(reader, pointcloud->id.lib, &pointcloud->mat[a]);
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}
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}
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static void pointcloud_blend_read_expand(BlendExpander *expander, ID *id)
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{
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PointCloud *pointcloud = (PointCloud *)id;
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for (int a = 0; a < pointcloud->totcol; a++) {
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BLO_expand(expander, pointcloud->mat[a]);
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}
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}
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IDTypeInfo IDType_ID_PT = {
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/* id_code */ ID_PT,
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/* id_filter */ FILTER_ID_PT,
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/* main_listbase_index */ INDEX_ID_PT,
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/* struct_size */ sizeof(PointCloud),
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/* name */ "PointCloud",
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/* name_plural */ "pointclouds",
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/* translation_context */ BLT_I18NCONTEXT_ID_POINTCLOUD,
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/* flags */ IDTYPE_FLAGS_APPEND_IS_REUSABLE,
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/* asset_type_info */ nullptr,
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/* init_data */ pointcloud_init_data,
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/* copy_data */ pointcloud_copy_data,
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/* free_data */ pointcloud_free_data,
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/* make_local */ nullptr,
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/* foreach_id */ pointcloud_foreach_id,
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/* foreach_cache */ nullptr,
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/* foreach_path */ nullptr,
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/* owner_get */ nullptr,
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/* blend_write */ pointcloud_blend_write,
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/* blend_read_data */ pointcloud_blend_read_data,
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/* blend_read_lib */ pointcloud_blend_read_lib,
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/* blend_read_expand */ pointcloud_blend_read_expand,
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/* blend_read_undo_preserve */ nullptr,
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/* lib_override_apply_post */ nullptr,
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};
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static void pointcloud_random(PointCloud *pointcloud)
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{
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pointcloud->totpoint = 400;
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CustomData_realloc(&pointcloud->pdata, pointcloud->totpoint);
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BKE_pointcloud_update_customdata_pointers(pointcloud);
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RNG *rng = BLI_rng_new(0);
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for (int i = 0; i < pointcloud->totpoint; i++) {
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pointcloud->co[i][0] = 2.0f * BLI_rng_get_float(rng) - 1.0f;
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pointcloud->co[i][1] = 2.0f * BLI_rng_get_float(rng) - 1.0f;
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pointcloud->co[i][2] = 2.0f * BLI_rng_get_float(rng) - 1.0f;
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pointcloud->radius[i] = 0.05f * BLI_rng_get_float(rng);
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}
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BLI_rng_free(rng);
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}
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void *BKE_pointcloud_add(Main *bmain, const char *name)
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{
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PointCloud *pointcloud = static_cast<PointCloud *>(BKE_id_new(bmain, ID_PT, name));
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return pointcloud;
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}
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void *BKE_pointcloud_add_default(Main *bmain, const char *name)
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{
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PointCloud *pointcloud = static_cast<PointCloud *>(BKE_libblock_alloc(bmain, ID_PT, name, 0));
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pointcloud_init_data(&pointcloud->id);
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CustomData_add_layer_named(&pointcloud->pdata,
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CD_PROP_FLOAT,
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CD_CALLOC,
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nullptr,
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pointcloud->totpoint,
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POINTCLOUD_ATTR_RADIUS);
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pointcloud_random(pointcloud);
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return pointcloud;
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}
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PointCloud *BKE_pointcloud_new_nomain(const int totpoint)
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{
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PointCloud *pointcloud = static_cast<PointCloud *>(BKE_libblock_alloc(
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nullptr, ID_PT, BKE_idtype_idcode_to_name(ID_PT), LIB_ID_CREATE_LOCALIZE));
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pointcloud_init_data(&pointcloud->id);
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pointcloud->totpoint = totpoint;
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CustomData_add_layer_named(&pointcloud->pdata,
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CD_PROP_FLOAT,
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CD_CALLOC,
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nullptr,
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pointcloud->totpoint,
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POINTCLOUD_ATTR_RADIUS);
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pointcloud->totpoint = totpoint;
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CustomData_realloc(&pointcloud->pdata, pointcloud->totpoint);
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BKE_pointcloud_update_customdata_pointers(pointcloud);
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return pointcloud;
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}
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static std::optional<blender::bounds::MinMaxResult<float3>> point_cloud_bounds(
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const PointCloud &pointcloud)
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{
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Span<float3> positions{reinterpret_cast<float3 *>(pointcloud.co), pointcloud.totpoint};
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if (pointcloud.radius) {
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Span<float> radii{pointcloud.radius, pointcloud.totpoint};
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return blender::bounds::min_max_with_radii(positions, radii);
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}
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return blender::bounds::min_max(positions);
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}
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bool BKE_pointcloud_minmax(const PointCloud *pointcloud, float r_min[3], float r_max[3])
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{
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using namespace blender;
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const std::optional<bounds::MinMaxResult<float3>> min_max = point_cloud_bounds(*pointcloud);
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if (!min_max) {
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return false;
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}
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copy_v3_v3(r_min, math::min(min_max->min, float3(r_min)));
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copy_v3_v3(r_max, math::max(min_max->max, float3(r_max)));
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return true;
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}
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BoundBox *BKE_pointcloud_boundbox_get(Object *ob)
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{
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BLI_assert(ob->type == OB_POINTCLOUD);
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if (ob->runtime.bb != nullptr && (ob->runtime.bb->flag & BOUNDBOX_DIRTY) == 0) {
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return ob->runtime.bb;
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}
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if (ob->runtime.bb == nullptr) {
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ob->runtime.bb = static_cast<BoundBox *>(MEM_callocN(sizeof(BoundBox), "pointcloud boundbox"));
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}
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float3 min, max;
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INIT_MINMAX(min, max);
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if (ob->runtime.geometry_set_eval != nullptr) {
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ob->runtime.geometry_set_eval->compute_boundbox_without_instances(&min, &max);
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}
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else {
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const PointCloud *pointcloud = static_cast<PointCloud *>(ob->data);
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BKE_pointcloud_minmax(pointcloud, min, max);
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}
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BKE_boundbox_init_from_minmax(ob->runtime.bb, min, max);
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return ob->runtime.bb;
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}
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void BKE_pointcloud_update_customdata_pointers(PointCloud *pointcloud)
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{
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pointcloud->co = static_cast<float(*)[3]>(
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CustomData_get_layer_named(&pointcloud->pdata, CD_PROP_FLOAT3, POINTCLOUD_ATTR_POSITION));
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pointcloud->radius = static_cast<float *>(
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CustomData_get_layer_named(&pointcloud->pdata, CD_PROP_FLOAT, POINTCLOUD_ATTR_RADIUS));
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}
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bool BKE_pointcloud_customdata_required(const PointCloud *UNUSED(pointcloud), const char *name)
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{
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return STREQ(name, POINTCLOUD_ATTR_POSITION);
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}
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/* Dependency Graph */
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PointCloud *BKE_pointcloud_new_for_eval(const PointCloud *pointcloud_src, int totpoint)
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{
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PointCloud *pointcloud_dst = static_cast<PointCloud *>(BKE_id_new_nomain(ID_PT, nullptr));
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CustomData_free(&pointcloud_dst->pdata, pointcloud_dst->totpoint);
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STRNCPY(pointcloud_dst->id.name, pointcloud_src->id.name);
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pointcloud_dst->mat = static_cast<Material **>(MEM_dupallocN(pointcloud_src->mat));
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pointcloud_dst->totcol = pointcloud_src->totcol;
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pointcloud_dst->totpoint = totpoint;
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CustomData_copy(
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&pointcloud_src->pdata, &pointcloud_dst->pdata, CD_MASK_ALL, CD_CALLOC, totpoint);
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BKE_pointcloud_update_customdata_pointers(pointcloud_dst);
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return pointcloud_dst;
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}
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PointCloud *BKE_pointcloud_copy_for_eval(struct PointCloud *pointcloud_src, bool reference)
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{
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int flags = LIB_ID_COPY_LOCALIZE;
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if (reference) {
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flags |= LIB_ID_COPY_CD_REFERENCE;
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}
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PointCloud *result = (PointCloud *)BKE_id_copy_ex(nullptr, &pointcloud_src->id, nullptr, flags);
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return result;
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}
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static void pointcloud_evaluate_modifiers(struct Depsgraph *depsgraph,
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struct Scene *scene,
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Object *object,
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GeometrySet &geometry_set)
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{
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/* Modifier evaluation modes. */
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const bool use_render = (DEG_get_mode(depsgraph) == DAG_EVAL_RENDER);
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const int required_mode = use_render ? eModifierMode_Render : eModifierMode_Realtime;
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ModifierApplyFlag apply_flag = use_render ? MOD_APPLY_RENDER : MOD_APPLY_USECACHE;
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const ModifierEvalContext mectx = {depsgraph, object, apply_flag};
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/* Get effective list of modifiers to execute. Some effects like shape keys
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* are added as virtual modifiers before the user created modifiers. */
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VirtualModifierData virtualModifierData;
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ModifierData *md = BKE_modifiers_get_virtual_modifierlist(object, &virtualModifierData);
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/* Evaluate modifiers. */
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for (; md; md = md->next) {
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const ModifierTypeInfo *mti = BKE_modifier_get_info((ModifierType)md->type);
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if (!BKE_modifier_is_enabled(scene, md, required_mode)) {
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continue;
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}
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if (mti->modifyGeometrySet) {
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mti->modifyGeometrySet(md, &mectx, &geometry_set);
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}
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}
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}
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static PointCloud *take_pointcloud_ownership_from_geometry_set(GeometrySet &geometry_set)
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{
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if (!geometry_set.has<PointCloudComponent>()) {
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return nullptr;
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}
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PointCloudComponent &pointcloud_component =
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geometry_set.get_component_for_write<PointCloudComponent>();
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PointCloud *pointcloud = pointcloud_component.release();
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if (pointcloud != nullptr) {
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/* Add back, but as read-only non-owning component. */
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pointcloud_component.replace(pointcloud, GeometryOwnershipType::ReadOnly);
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}
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else {
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/* The component was empty, we can also remove it. */
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geometry_set.remove<PointCloudComponent>();
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}
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return pointcloud;
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}
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void BKE_pointcloud_data_update(struct Depsgraph *depsgraph, struct Scene *scene, Object *object)
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{
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/* Free any evaluated data and restore original data. */
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BKE_object_free_derived_caches(object);
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/* Evaluate modifiers. */
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PointCloud *pointcloud = static_cast<PointCloud *>(object->data);
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GeometrySet geometry_set = GeometrySet::create_with_pointcloud(pointcloud,
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GeometryOwnershipType::ReadOnly);
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pointcloud_evaluate_modifiers(depsgraph, scene, object, geometry_set);
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PointCloud *pointcloud_eval = take_pointcloud_ownership_from_geometry_set(geometry_set);
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/* If the geometry set did not contain a point cloud, we still create an empty one. */
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if (pointcloud_eval == nullptr) {
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pointcloud_eval = BKE_pointcloud_new_nomain(0);
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}
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/* Assign evaluated object. */
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const bool eval_is_owned = pointcloud_eval != pointcloud;
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BKE_object_eval_assign_data(object, &pointcloud_eval->id, eval_is_owned);
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object->runtime.geometry_set_eval = new GeometrySet(std::move(geometry_set));
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}
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/* Draw Cache */
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void (*BKE_pointcloud_batch_cache_dirty_tag_cb)(PointCloud *pointcloud, int mode) = nullptr;
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void (*BKE_pointcloud_batch_cache_free_cb)(PointCloud *pointcloud) = nullptr;
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void BKE_pointcloud_batch_cache_dirty_tag(PointCloud *pointcloud, int mode)
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{
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if (pointcloud->batch_cache) {
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BKE_pointcloud_batch_cache_dirty_tag_cb(pointcloud, mode);
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}
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}
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void BKE_pointcloud_batch_cache_free(PointCloud *pointcloud)
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{
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if (pointcloud->batch_cache) {
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BKE_pointcloud_batch_cache_free_cb(pointcloud);
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}
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}
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