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/*
* Copyright 2021 Blender Foundation
*
* Licensed 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 CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#ifdef WITH_ALEMBIC
# include <Alembic/AbcCoreFactory/All.h>
# include <Alembic/AbcGeom/All.h>
# include "util/util_vector.h"
CCL_NAMESPACE_BEGIN
class AlembicProcedural;
class AttributeRequestSet;
class Progress;
struct CachedData;
/* Maps a FaceSet whose name matches that of a Shader to the index of said shader in the Geometry's
* used_shaders list. */
struct FaceSetShaderIndexPair {
Alembic::AbcGeom::IFaceSet face_set;
int shader_index;
};
/* Data of an IPolyMeshSchema that we need to read. */
struct PolyMeshSchemaData {
Alembic::AbcGeom::TimeSamplingPtr time_sampling;
size_t num_samples;
Alembic::AbcGeom::MeshTopologyVariance topology_variance;
Alembic::AbcGeom::IP3fArrayProperty positions;
Alembic::AbcGeom::IInt32ArrayProperty face_indices;
Alembic::AbcGeom::IInt32ArrayProperty face_counts;
Alembic::AbcGeom::IN3fGeomParam normals;
vector<FaceSetShaderIndexPair> shader_face_sets;
// Unsupported for now.
Alembic::AbcGeom::IV3fArrayProperty velocities;
};
void read_geometry_data(AlembicProcedural *proc,
CachedData &cached_data,
const PolyMeshSchemaData &data,
Progress &progress);
/* Data of an ISubDSchema that we need to read. */
struct SubDSchemaData {
Alembic::AbcGeom::TimeSamplingPtr time_sampling;
size_t num_samples;
Alembic::AbcGeom::MeshTopologyVariance topology_variance;
Alembic::AbcGeom::IInt32ArrayProperty face_counts;
Alembic::AbcGeom::IInt32ArrayProperty face_indices;
Alembic::AbcGeom::IP3fArrayProperty positions;
Alembic::AbcGeom::IInt32ArrayProperty crease_indices;
Alembic::AbcGeom::IInt32ArrayProperty crease_lengths;
Alembic::AbcGeom::IFloatArrayProperty crease_sharpnesses;
vector<FaceSetShaderIndexPair> shader_face_sets;
// Those are unsupported for now.
Alembic::AbcGeom::IInt32ArrayProperty corner_indices;
Alembic::AbcGeom::IFloatArrayProperty corner_sharpnesses;
Alembic::AbcGeom::IInt32Property face_varying_interpolate_boundary;
Alembic::AbcGeom::IInt32Property face_varying_propagate_corners;
Alembic::AbcGeom::IInt32Property interpolate_boundary;
Alembic::AbcGeom::IInt32ArrayProperty holes;
Alembic::AbcGeom::IStringProperty subdivision_scheme;
Alembic::AbcGeom::IV3fArrayProperty velocities;
};
void read_geometry_data(AlembicProcedural *proc,
CachedData &cached_data,
const SubDSchemaData &data,
Progress &progress);
/* Data of a ICurvesSchema that we need to read. */
struct CurvesSchemaData {
Alembic::AbcGeom::TimeSamplingPtr time_sampling;
size_t num_samples;
Alembic::AbcGeom::MeshTopologyVariance topology_variance;
Alembic::AbcGeom::IP3fArrayProperty positions;
Alembic::AbcGeom::IInt32ArrayProperty num_vertices;
float default_radius;
float radius_scale;
// Those are unsupported for now.
Alembic::AbcGeom::IV3fArrayProperty velocities;
// if this property is invalid then the weight for every point is 1
Alembic::AbcGeom::IFloatArrayProperty position_weights;
Alembic::AbcGeom::IN3fGeomParam normals;
Alembic::AbcGeom::IFloatGeomParam widths;
Alembic::AbcGeom::IUcharArrayProperty orders;
Alembic::AbcGeom::IFloatArrayProperty knots;
// TODO(@kevindietrich): type, basis, wrap
};
void read_geometry_data(AlembicProcedural *proc,
CachedData &cached_data,
const CurvesSchemaData &data,
Progress &progress);
void read_attributes(AlembicProcedural *proc,
CachedData &cache,
const Alembic::AbcGeom::ICompoundProperty &arb_geom_params,
const Alembic::AbcGeom::IV2fGeomParam &default_uvs_param,
const AttributeRequestSet &requested_attributes,
Progress &progress);
CCL_NAMESPACE_END
#endif
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