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Diffstat (limited to 'intern/cycles/render/alembic.cpp')
| -rw-r--r-- | intern/cycles/render/alembic.cpp | 1431 |
1 files changed, 0 insertions, 1431 deletions
diff --git a/intern/cycles/render/alembic.cpp b/intern/cycles/render/alembic.cpp deleted file mode 100644 index 69bc0712674..00000000000 --- a/intern/cycles/render/alembic.cpp +++ /dev/null @@ -1,1431 +0,0 @@ -/* - * Copyright 2011-2018 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. - */ - -#include "render/alembic.h" - -#include "render/alembic_read.h" -#include "render/camera.h" -#include "render/curves.h" -#include "render/mesh.h" -#include "render/object.h" -#include "render/scene.h" -#include "render/shader.h" - -#include "util/util_foreach.h" -#include "util/util_logging.h" -#include "util/util_progress.h" -#include "util/util_transform.h" -#include "util/util_vector.h" - -#ifdef WITH_ALEMBIC - -using namespace Alembic::AbcGeom; - -CCL_NAMESPACE_BEGIN - -/* TODO(kevindietrich): motion blur support. */ - -template<typename SchemaType> -static vector<FaceSetShaderIndexPair> parse_face_sets_for_shader_assignment( - SchemaType &schema, const array<Node *> &used_shaders) -{ - vector<FaceSetShaderIndexPair> result; - - std::vector<std::string> face_set_names; - schema.getFaceSetNames(face_set_names); - - if (face_set_names.empty()) { - return result; - } - - for (const std::string &face_set_name : face_set_names) { - int shader_index = 0; - - for (Node *node : used_shaders) { - if (node->name == face_set_name) { - break; - } - - ++shader_index; - } - - if (shader_index >= used_shaders.size()) { - /* use the first shader instead if none was found */ - shader_index = 0; - } - - const Alembic::AbcGeom::IFaceSet face_set = schema.getFaceSet(face_set_name); - - if (!face_set.valid()) { - continue; - } - - result.push_back({face_set, shader_index}); - } - - return result; -} - -void CachedData::clear() -{ - attributes.clear(); - curve_first_key.clear(); - curve_keys.clear(); - curve_radius.clear(); - curve_shader.clear(); - num_ngons.clear(); - shader.clear(); - subd_creases_edge.clear(); - subd_creases_weight.clear(); - subd_face_corners.clear(); - subd_num_corners.clear(); - subd_ptex_offset.clear(); - subd_smooth.clear(); - subd_start_corner.clear(); - transforms.clear(); - triangles.clear(); - uv_loops.clear(); - vertices.clear(); - - for (CachedAttribute &attr : attributes) { - attr.data.clear(); - } - - attributes.clear(); -} - -CachedData::CachedAttribute &CachedData::add_attribute(const ustring &name, - const TimeSampling &time_sampling) -{ - for (auto &attr : attributes) { - if (attr.name == name) { - return attr; - } - } - - CachedAttribute &attr = attributes.emplace_back(); - attr.name = name; - attr.data.set_time_sampling(time_sampling); - return attr; -} - -bool CachedData::is_constant() const -{ -# define CHECK_IF_CONSTANT(data) \ - if (!data.is_constant()) { \ - return false; \ - } - - CHECK_IF_CONSTANT(curve_first_key) - CHECK_IF_CONSTANT(curve_keys) - CHECK_IF_CONSTANT(curve_radius) - CHECK_IF_CONSTANT(curve_shader) - CHECK_IF_CONSTANT(num_ngons) - CHECK_IF_CONSTANT(shader) - CHECK_IF_CONSTANT(subd_creases_edge) - CHECK_IF_CONSTANT(subd_creases_weight) - CHECK_IF_CONSTANT(subd_face_corners) - CHECK_IF_CONSTANT(subd_num_corners) - CHECK_IF_CONSTANT(subd_ptex_offset) - CHECK_IF_CONSTANT(subd_smooth) - CHECK_IF_CONSTANT(subd_start_corner) - CHECK_IF_CONSTANT(transforms) - CHECK_IF_CONSTANT(triangles) - CHECK_IF_CONSTANT(uv_loops) - CHECK_IF_CONSTANT(vertices) - - for (const CachedAttribute &attr : attributes) { - if (!attr.data.is_constant()) { - return false; - } - } - - return true; - -# undef CHECK_IF_CONSTANT -} - -void CachedData::invalidate_last_loaded_time(bool attributes_only) -{ - if (attributes_only) { - for (CachedAttribute &attr : attributes) { - attr.data.invalidate_last_loaded_time(); - } - - return; - } - - curve_first_key.invalidate_last_loaded_time(); - curve_keys.invalidate_last_loaded_time(); - curve_radius.invalidate_last_loaded_time(); - curve_shader.invalidate_last_loaded_time(); - num_ngons.invalidate_last_loaded_time(); - shader.invalidate_last_loaded_time(); - subd_creases_edge.invalidate_last_loaded_time(); - subd_creases_weight.invalidate_last_loaded_time(); - subd_face_corners.invalidate_last_loaded_time(); - subd_num_corners.invalidate_last_loaded_time(); - subd_ptex_offset.invalidate_last_loaded_time(); - subd_smooth.invalidate_last_loaded_time(); - subd_start_corner.invalidate_last_loaded_time(); - transforms.invalidate_last_loaded_time(); - triangles.invalidate_last_loaded_time(); - uv_loops.invalidate_last_loaded_time(); - vertices.invalidate_last_loaded_time(); -} - -void CachedData::set_time_sampling(TimeSampling time_sampling) -{ - curve_first_key.set_time_sampling(time_sampling); - curve_keys.set_time_sampling(time_sampling); - curve_radius.set_time_sampling(time_sampling); - curve_shader.set_time_sampling(time_sampling); - num_ngons.set_time_sampling(time_sampling); - shader.set_time_sampling(time_sampling); - subd_creases_edge.set_time_sampling(time_sampling); - subd_creases_weight.set_time_sampling(time_sampling); - subd_face_corners.set_time_sampling(time_sampling); - subd_num_corners.set_time_sampling(time_sampling); - subd_ptex_offset.set_time_sampling(time_sampling); - subd_smooth.set_time_sampling(time_sampling); - subd_start_corner.set_time_sampling(time_sampling); - transforms.set_time_sampling(time_sampling); - triangles.set_time_sampling(time_sampling); - uv_loops.set_time_sampling(time_sampling); - vertices.set_time_sampling(time_sampling); - - for (CachedAttribute &attr : attributes) { - attr.data.set_time_sampling(time_sampling); - } -} - -size_t CachedData::memory_used() const -{ - size_t mem_used = 0; - - mem_used += curve_first_key.memory_used(); - mem_used += curve_keys.memory_used(); - mem_used += curve_radius.memory_used(); - mem_used += curve_shader.memory_used(); - mem_used += num_ngons.memory_used(); - mem_used += shader.memory_used(); - mem_used += subd_creases_edge.memory_used(); - mem_used += subd_creases_weight.memory_used(); - mem_used += subd_face_corners.memory_used(); - mem_used += subd_num_corners.memory_used(); - mem_used += subd_ptex_offset.memory_used(); - mem_used += subd_smooth.memory_used(); - mem_used += subd_start_corner.memory_used(); - mem_used += transforms.memory_used(); - mem_used += triangles.memory_used(); - mem_used += uv_loops.memory_used(); - mem_used += vertices.memory_used(); - - for (const CachedAttribute &attr : attributes) { - mem_used += attr.data.memory_used(); - } - - return mem_used; -} - -static M44d convert_yup_zup(const M44d &mtx, float scale_mult) -{ - V3d scale, shear, rotation, translation; - extractSHRT(mtx, - scale, - shear, - rotation, - translation, - true, - IMATH_INTERNAL_NAMESPACE::Euler<double>::XZY); - - M44d rot_mat, scale_mat, trans_mat; - rot_mat.setEulerAngles(V3d(rotation.x, -rotation.z, rotation.y)); - scale_mat.setScale(V3d(scale.x, scale.z, scale.y)); - trans_mat.setTranslation(V3d(translation.x, -translation.z, translation.y)); - - M44d temp_mat = scale_mat * rot_mat * trans_mat; - - scale_mat.setScale(static_cast<double>(scale_mult)); - - return temp_mat * scale_mat; -} - -static void transform_decompose( - const M44d &mat, V3d &scale, V3d &shear, Quatd &rotation, V3d &translation) -{ - M44d mat_remainder(mat); - - /* extract scale and shear */ - Imath::extractAndRemoveScalingAndShear(mat_remainder, scale, shear); - - /* extract translation */ - translation.x = mat_remainder[3][0]; - translation.y = mat_remainder[3][1]; - translation.z = mat_remainder[3][2]; - - /* extract rotation */ - rotation = extractQuat(mat_remainder); -} - -static M44d transform_compose(const V3d &scale, - const V3d &shear, - const Quatd &rotation, - const V3d &translation) -{ - M44d scale_mat, shear_mat, rot_mat, trans_mat; - - scale_mat.setScale(scale); - shear_mat.setShear(shear); - rot_mat = rotation.toMatrix44(); - trans_mat.setTranslation(translation); - - return scale_mat * shear_mat * rot_mat * trans_mat; -} - -/* get the matrix for the specified time, or return the identity matrix if there is no exact match - */ -static M44d get_matrix_for_time(const MatrixSampleMap &samples, chrono_t time) -{ - MatrixSampleMap::const_iterator iter = samples.find(time); - if (iter != samples.end()) { - return iter->second; - } - - return M44d(); -} - -/* get the matrix for the specified time, or interpolate between samples if there is no exact match - */ -static M44d get_interpolated_matrix_for_time(const MatrixSampleMap &samples, chrono_t time) -{ - if (samples.empty()) { - return M44d(); - } - - /* see if exact match */ - MatrixSampleMap::const_iterator iter = samples.find(time); - if (iter != samples.end()) { - return iter->second; - } - - if (samples.size() == 1) { - return samples.begin()->second; - } - - if (time <= samples.begin()->first) { - return samples.begin()->second; - } - - if (time >= samples.rbegin()->first) { - return samples.rbegin()->second; - } - - /* find previous and next time sample to interpolate */ - chrono_t prev_time = samples.begin()->first; - chrono_t next_time = samples.rbegin()->first; - - for (MatrixSampleMap::const_iterator I = samples.begin(); I != samples.end(); ++I) { - chrono_t current_time = (*I).first; - - if (current_time > prev_time && current_time <= time) { - prev_time = current_time; - } - - if (current_time > next_time && current_time >= time) { - next_time = current_time; - } - } - - const M44d prev_mat = get_matrix_for_time(samples, prev_time); - const M44d next_mat = get_matrix_for_time(samples, next_time); - - V3d prev_scale, next_scale; - V3d prev_shear, next_shear; - V3d prev_translation, next_translation; - Quatd prev_rotation, next_rotation; - - transform_decompose(prev_mat, prev_scale, prev_shear, prev_rotation, prev_translation); - transform_decompose(next_mat, next_scale, next_shear, next_rotation, next_translation); - - chrono_t t = (time - prev_time) / (next_time - prev_time); - - /* Ensure rotation around the shortest angle. */ - if ((prev_rotation ^ next_rotation) < 0) { - next_rotation = -next_rotation; - } - - return transform_compose(Imath::lerp(prev_scale, next_scale, t), - Imath::lerp(prev_shear, next_shear, t), - Imath::slerp(prev_rotation, next_rotation, t), - Imath::lerp(prev_translation, next_translation, t)); -} - -static void concatenate_xform_samples(const MatrixSampleMap &parent_samples, - const MatrixSampleMap &local_samples, - MatrixSampleMap &output_samples) -{ - set<chrono_t> union_of_samples; - - for (const std::pair<chrono_t, M44d> pair : parent_samples) { - union_of_samples.insert(pair.first); - } - - for (const std::pair<chrono_t, M44d> pair : local_samples) { - union_of_samples.insert(pair.first); - } - - foreach (chrono_t time, union_of_samples) { - M44d parent_matrix = get_interpolated_matrix_for_time(parent_samples, time); - M44d local_matrix = get_interpolated_matrix_for_time(local_samples, time); - - output_samples[time] = local_matrix * parent_matrix; - } -} - -static Transform make_transform(const M44d &a, float scale) -{ - M44d m = convert_yup_zup(a, scale); - Transform trans; - for (int j = 0; j < 3; j++) { - for (int i = 0; i < 4; i++) { - trans[j][i] = static_cast<float>(m[i][j]); - } - } - return trans; -} - -NODE_DEFINE(AlembicObject) -{ - NodeType *type = NodeType::add("alembic_object", create); - - SOCKET_STRING(path, "Alembic Path", ustring()); - SOCKET_NODE_ARRAY(used_shaders, "Used Shaders", Shader::get_node_type()); - - SOCKET_BOOLEAN(ignore_subdivision, "Ignore Subdivision", true); - - SOCKET_INT(subd_max_level, "Max Subdivision Level", 1); - SOCKET_FLOAT(subd_dicing_rate, "Subdivision Dicing Rate", 1.0f); - - SOCKET_FLOAT(radius_scale, "Radius Scale", 1.0f); - - return type; -} - -AlembicObject::AlembicObject() : Node(get_node_type()) -{ - schema_type = INVALID; -} - -AlembicObject::~AlembicObject() -{ -} - -void AlembicObject::set_object(Object *object_) -{ - object = object_; -} - -Object *AlembicObject::get_object() -{ - return object; -} - -bool AlembicObject::has_data_loaded() const -{ - return data_loaded; -} - -void AlembicObject::load_data_in_cache(CachedData &cached_data, - AlembicProcedural *proc, - IPolyMeshSchema &schema, - Progress &progress) -{ - /* Only load data for the original Geometry. */ - if (instance_of) { - return; - } - - cached_data.clear(); - - PolyMeshSchemaData data; - data.topology_variance = schema.getTopologyVariance(); - data.time_sampling = schema.getTimeSampling(); - data.positions = schema.getPositionsProperty(); - data.face_counts = schema.getFaceCountsProperty(); - data.face_indices = schema.getFaceIndicesProperty(); - data.normals = schema.getNormalsParam(); - data.num_samples = schema.getNumSamples(); - data.shader_face_sets = parse_face_sets_for_shader_assignment(schema, get_used_shaders()); - - read_geometry_data(proc, cached_data, data, progress); - - if (progress.get_cancel()) { - return; - } - - /* Use the schema as the base compound property to also be able to look for top level properties. - */ - read_attributes( - proc, cached_data, schema, schema.getUVsParam(), get_requested_attributes(), progress); - - if (progress.get_cancel()) { - return; - } - - cached_data.invalidate_last_loaded_time(true); - data_loaded = true; -} - -void AlembicObject::load_data_in_cache(CachedData &cached_data, - AlembicProcedural *proc, - ISubDSchema &schema, - Progress &progress) -{ - /* Only load data for the original Geometry. */ - if (instance_of) { - return; - } - - cached_data.clear(); - - if (this->get_ignore_subdivision()) { - PolyMeshSchemaData data; - data.topology_variance = schema.getTopologyVariance(); - data.time_sampling = schema.getTimeSampling(); - data.positions = schema.getPositionsProperty(); - data.face_counts = schema.getFaceCountsProperty(); - data.face_indices = schema.getFaceIndicesProperty(); - data.num_samples = schema.getNumSamples(); - data.velocities = schema.getVelocitiesProperty(); - data.shader_face_sets = parse_face_sets_for_shader_assignment(schema, get_used_shaders()); - - read_geometry_data(proc, cached_data, data, progress); - - if (progress.get_cancel()) { - return; - } - - /* Use the schema as the base compound property to also be able to look for top level - * properties. */ - read_attributes( - proc, cached_data, schema, schema.getUVsParam(), get_requested_attributes(), progress); - - cached_data.invalidate_last_loaded_time(true); - data_loaded = true; - return; - } - - SubDSchemaData data; - data.time_sampling = schema.getTimeSampling(); - data.num_samples = schema.getNumSamples(); - data.topology_variance = schema.getTopologyVariance(); - data.face_counts = schema.getFaceCountsProperty(); - data.face_indices = schema.getFaceIndicesProperty(); - data.positions = schema.getPositionsProperty(); - data.face_varying_interpolate_boundary = schema.getFaceVaryingInterpolateBoundaryProperty(); - data.face_varying_propagate_corners = schema.getFaceVaryingPropagateCornersProperty(); - data.interpolate_boundary = schema.getInterpolateBoundaryProperty(); - data.crease_indices = schema.getCreaseIndicesProperty(); - data.crease_lengths = schema.getCreaseLengthsProperty(); - data.crease_sharpnesses = schema.getCreaseSharpnessesProperty(); - data.corner_indices = schema.getCornerIndicesProperty(); - data.corner_sharpnesses = schema.getCornerSharpnessesProperty(); - data.holes = schema.getHolesProperty(); - data.subdivision_scheme = schema.getSubdivisionSchemeProperty(); - data.velocities = schema.getVelocitiesProperty(); - data.shader_face_sets = parse_face_sets_for_shader_assignment(schema, get_used_shaders()); - - read_geometry_data(proc, cached_data, data, progress); - - if (progress.get_cancel()) { - return; - } - - /* Use the schema as the base compound property to also be able to look for top level properties. - */ - read_attributes( - proc, cached_data, schema, schema.getUVsParam(), get_requested_attributes(), progress); - - cached_data.invalidate_last_loaded_time(true); - data_loaded = true; -} - -void AlembicObject::load_data_in_cache(CachedData &cached_data, - AlembicProcedural *proc, - const ICurvesSchema &schema, - Progress &progress) -{ - /* Only load data for the original Geometry. */ - if (instance_of) { - return; - } - - cached_data.clear(); - - CurvesSchemaData data; - data.positions = schema.getPositionsProperty(); - data.position_weights = schema.getPositionWeightsProperty(); - data.normals = schema.getNormalsParam(); - data.knots = schema.getKnotsProperty(); - data.orders = schema.getOrdersProperty(); - data.widths = schema.getWidthsParam(); - data.velocities = schema.getVelocitiesProperty(); - data.time_sampling = schema.getTimeSampling(); - data.topology_variance = schema.getTopologyVariance(); - data.num_samples = schema.getNumSamples(); - data.num_vertices = schema.getNumVerticesProperty(); - data.default_radius = proc->get_default_radius(); - data.radius_scale = get_radius_scale(); - - read_geometry_data(proc, cached_data, data, progress); - - if (progress.get_cancel()) { - return; - } - - /* Use the schema as the base compound property to also be able to look for top level properties. - */ - read_attributes( - proc, cached_data, schema, schema.getUVsParam(), get_requested_attributes(), progress); - - cached_data.invalidate_last_loaded_time(true); - data_loaded = true; -} - -void AlembicObject::setup_transform_cache(CachedData &cached_data, float scale) -{ - cached_data.transforms.clear(); - cached_data.transforms.invalidate_last_loaded_time(); - - if (scale == 0.0f) { - scale = 1.0f; - } - - if (xform_time_sampling) { - cached_data.transforms.set_time_sampling(*xform_time_sampling); - } - - if (xform_samples.size() == 0) { - Transform tfm = transform_scale(make_float3(scale)); - cached_data.transforms.add_data(tfm, 0.0); - } - else { - /* It is possible for a leaf node of the hierarchy to have multiple samples for its transforms - * if a sibling has animated transforms. So check if we indeed have animated transformations. - */ - M44d first_matrix = xform_samples.begin()->first; - bool has_animation = false; - for (const std::pair<chrono_t, M44d> pair : xform_samples) { - if (pair.second != first_matrix) { - has_animation = true; - break; - } - } - - if (!has_animation) { - Transform tfm = make_transform(first_matrix, scale); - cached_data.transforms.add_data(tfm, 0.0); - } - else { - for (const std::pair<chrono_t, M44d> pair : xform_samples) { - Transform tfm = make_transform(pair.second, scale); - cached_data.transforms.add_data(tfm, pair.first); - } - } - } -} - -AttributeRequestSet AlembicObject::get_requested_attributes() -{ - AttributeRequestSet requested_attributes; - - Geometry *geometry = object->get_geometry(); - assert(geometry); - - foreach (Node *node, geometry->get_used_shaders()) { - Shader *shader = static_cast<Shader *>(node); - - foreach (const AttributeRequest &attr, shader->attributes.requests) { - if (attr.name != "") { - requested_attributes.add(attr.name); - } - } - } - - return requested_attributes; -} - -/* Update existing attributes and remove any attribute not in the cached_data, those attributes - * were added by Cycles (e.g. face normals) */ -static void update_attributes(AttributeSet &attributes, CachedData &cached_data, double frame_time) -{ - set<Attribute *> cached_attributes; - - for (CachedData::CachedAttribute &attribute : cached_data.attributes) { - const CacheLookupResult<array<char>> result = attribute.data.data_for_time(frame_time); - - if (result.has_no_data_for_time()) { - continue; - } - - Attribute *attr = nullptr; - if (attribute.std != ATTR_STD_NONE) { - attr = attributes.add(attribute.std, attribute.name); - } - else { - attr = attributes.add(attribute.name, attribute.type_desc, attribute.element); - } - assert(attr); - - cached_attributes.insert(attr); - - if (!result.has_new_data()) { - continue; - } - - const ccl::array<char> &attr_data = result.get_data(); - - /* weak way of detecting if the topology has changed - * todo: reuse code from device_update patch */ - if (attr->buffer.size() != attr_data.size()) { - attr->buffer.resize(attr_data.size()); - } - - memcpy(attr->data(), attr_data.data(), attr_data.size()); - attr->modified = true; - } - - /* remove any attributes not in cached_attributes */ - list<Attribute>::iterator it; - for (it = attributes.attributes.begin(); it != attributes.attributes.end();) { - if (cached_attributes.find(&(*it)) == cached_attributes.end()) { - attributes.remove(it++); - continue; - } - - it++; - } -} - -NODE_DEFINE(AlembicProcedural) -{ - NodeType *type = NodeType::add("alembic", create); - - SOCKET_STRING(filepath, "Filename", ustring()); - SOCKET_FLOAT(frame, "Frame", 1.0f); - SOCKET_FLOAT(start_frame, "Start Frame", 1.0f); - SOCKET_FLOAT(end_frame, "End Frame", 1.0f); - SOCKET_FLOAT(frame_rate, "Frame Rate", 24.0f); - SOCKET_FLOAT(frame_offset, "Frame Offset", 0.0f); - SOCKET_FLOAT(default_radius, "Default Radius", 0.01f); - SOCKET_FLOAT(scale, "Scale", 1.0f); - - SOCKET_NODE_ARRAY(objects, "Objects", AlembicObject::get_node_type()); - - SOCKET_BOOLEAN(use_prefetch, "Use Prefetch", true); - SOCKET_INT(prefetch_cache_size, "Prefetch Cache Size", 4096); - - return type; -} - -AlembicProcedural::AlembicProcedural() : Procedural(get_node_type()) -{ - objects_loaded = false; - scene_ = nullptr; -} - -AlembicProcedural::~AlembicProcedural() -{ - ccl::set<Geometry *> geometries_set; - ccl::set<Object *> objects_set; - ccl::set<AlembicObject *> abc_objects_set; - - foreach (Node *node, objects) { - AlembicObject *abc_object = static_cast<AlembicObject *>(node); - - if (abc_object->get_object()) { - objects_set.insert(abc_object->get_object()); - - if (abc_object->get_object()->get_geometry()) { - geometries_set.insert(abc_object->get_object()->get_geometry()); - } - } - - delete_node(abc_object); - } - - /* We may delete a Procedural before rendering started, so scene_ can be null. */ - if (!scene_) { - assert(geometries_set.empty()); - assert(objects_set.empty()); - return; - } - - scene_->delete_nodes(geometries_set, this); - scene_->delete_nodes(objects_set, this); -} - -void AlembicProcedural::generate(Scene *scene, Progress &progress) -{ - assert(scene_ == nullptr || scene_ == scene); - scene_ = scene; - - if (frame < start_frame || frame > end_frame) { - clear_modified(); - return; - } - - bool need_shader_updates = false; - bool need_data_updates = false; - - foreach (Node *object_node, objects) { - AlembicObject *object = static_cast<AlembicObject *>(object_node); - - if (object->is_modified()) { - need_data_updates = true; - } - - /* Check if the shaders were modified. */ - if (object->used_shaders_is_modified() && object->get_object() && - object->get_object()->get_geometry()) { - Geometry *geometry = object->get_object()->get_geometry(); - array<Node *> used_shaders = object->get_used_shaders(); - geometry->set_used_shaders(used_shaders); - need_shader_updates = true; - } - - /* Check for changes in shaders (e.g. newly requested attributes). */ - foreach (Node *shader_node, object->get_used_shaders()) { - Shader *shader = static_cast<Shader *>(shader_node); - - if (shader->need_update_geometry()) { - object->need_shader_update = true; - need_shader_updates = true; - } - } - } - - if (!is_modified() && !need_shader_updates && !need_data_updates) { - return; - } - - if (!archive.valid()) { - Alembic::AbcCoreFactory::IFactory factory; - factory.setPolicy(Alembic::Abc::ErrorHandler::kQuietNoopPolicy); - archive = factory.getArchive(filepath.c_str()); - - if (!archive.valid()) { - /* avoid potential infinite update loops in viewport synchronization */ - filepath.clear(); - clear_modified(); - return; - } - } - - if (!objects_loaded || objects_is_modified()) { - load_objects(progress); - objects_loaded = true; - } - - const chrono_t frame_time = (chrono_t)((frame - frame_offset) / frame_rate); - - /* Clear the subdivision caches as the data is stored differently. */ - for (Node *node : objects) { - AlembicObject *object = static_cast<AlembicObject *>(node); - - if (object->schema_type != AlembicObject::SUBD) { - continue; - } - - if (object->ignore_subdivision_is_modified()) { - object->clear_cache(); - } - } - - if (use_prefetch_is_modified()) { - if (!use_prefetch) { - for (Node *node : objects) { - AlembicObject *object = static_cast<AlembicObject *>(node); - object->clear_cache(); - } - } - } - - if (prefetch_cache_size_is_modified()) { - /* Check whether the current memory usage fits in the new requested size, - * abort the render if it is any higher. */ - size_t memory_used = 0ul; - for (Node *node : objects) { - AlembicObject *object = static_cast<AlembicObject *>(node); - memory_used += object->get_cached_data().memory_used(); - } - - if (memory_used > get_prefetch_cache_size_in_bytes()) { - progress.set_error("Error: Alembic Procedural memory limit reached"); - return; - } - } - - build_caches(progress); - - foreach (Node *node, objects) { - AlembicObject *object = static_cast<AlembicObject *>(node); - - if (progress.get_cancel()) { - return; - } - - /* skip constant objects */ - if (object->is_constant() && !object->is_modified() && !object->need_shader_update && - !scale_is_modified()) { - continue; - } - - if (object->schema_type == AlembicObject::POLY_MESH) { - read_mesh(object, frame_time); - } - else if (object->schema_type == AlembicObject::CURVES) { - read_curves(object, frame_time); - } - else if (object->schema_type == AlembicObject::SUBD) { - read_subd(object, frame_time); - } - - object->need_shader_update = false; - object->clear_modified(); - } - - clear_modified(); -} - -void AlembicProcedural::add_object(AlembicObject *object) -{ - objects.push_back_slow(object); - tag_objects_modified(); -} - -void AlembicProcedural::tag_update(Scene *scene) -{ - scene->procedural_manager->tag_update(); -} - -AlembicObject *AlembicProcedural::get_or_create_object(const ustring &path) -{ - foreach (Node *node, objects) { - AlembicObject *object = static_cast<AlembicObject *>(node); - - if (object->get_path() == path) { - return object; - } - } - - AlembicObject *object = create_node<AlembicObject>(); - object->set_path(path); - - add_object(object); - - return object; -} - -void AlembicProcedural::load_objects(Progress &progress) -{ - unordered_map<string, AlembicObject *> object_map; - - foreach (Node *node, objects) { - AlembicObject *object = static_cast<AlembicObject *>(node); - - /* only consider newly added objects */ - if (object->get_object() == nullptr) { - object_map.insert({object->get_path().c_str(), object}); - } - } - - IObject root = archive.getTop(); - - for (size_t i = 0; i < root.getNumChildren(); ++i) { - walk_hierarchy(root, root.getChildHeader(i), {}, object_map, progress); - } - - /* Create nodes in the scene. */ - for (std::pair<string, AlembicObject *> pair : object_map) { - AlembicObject *abc_object = pair.second; - - Geometry *geometry = nullptr; - - if (!abc_object->instance_of) { - if (abc_object->schema_type == AlembicObject::CURVES) { - geometry = scene_->create_node<Hair>(); - } - else if (abc_object->schema_type == AlembicObject::POLY_MESH || - abc_object->schema_type == AlembicObject::SUBD) { - geometry = scene_->create_node<Mesh>(); - } - else { - continue; - } - - geometry->set_owner(this); - geometry->name = abc_object->iobject.getName(); - - array<Node *> used_shaders = abc_object->get_used_shaders(); - geometry->set_used_shaders(used_shaders); - } - - Object *object = scene_->create_node<Object>(); - object->set_owner(this); - object->set_geometry(geometry); - object->name = abc_object->iobject.getName(); - - abc_object->set_object(object); - } - - /* Share geometries between instances. */ - foreach (Node *node, objects) { - AlembicObject *abc_object = static_cast<AlembicObject *>(node); - - if (abc_object->instance_of) { - abc_object->get_object()->set_geometry( - abc_object->instance_of->get_object()->get_geometry()); - abc_object->schema_type = abc_object->instance_of->schema_type; - } - } -} - -void AlembicProcedural::read_mesh(AlembicObject *abc_object, Abc::chrono_t frame_time) -{ - CachedData &cached_data = abc_object->get_cached_data(); - - /* update sockets */ - - Object *object = abc_object->get_object(); - cached_data.transforms.copy_to_socket(frame_time, object, object->get_tfm_socket()); - - if (object->is_modified()) { - object->tag_update(scene_); - } - - /* Only update sockets for the original Geometry. */ - if (abc_object->instance_of) { - return; - } - - Mesh *mesh = static_cast<Mesh *>(object->get_geometry()); - - /* Make sure shader ids are also updated. */ - if (mesh->used_shaders_is_modified()) { - mesh->tag_shader_modified(); - } - - cached_data.vertices.copy_to_socket(frame_time, mesh, mesh->get_verts_socket()); - - cached_data.shader.copy_to_socket(frame_time, mesh, mesh->get_shader_socket()); - - array<int3> *triangle_data = cached_data.triangles.data_for_time(frame_time).get_data_or_null(); - if (triangle_data) { - array<int> triangles; - array<bool> smooth; - - triangles.reserve(triangle_data->size() * 3); - smooth.reserve(triangle_data->size()); - - for (size_t i = 0; i < triangle_data->size(); ++i) { - int3 tri = (*triangle_data)[i]; - triangles.push_back_reserved(tri.x); - triangles.push_back_reserved(tri.y); - triangles.push_back_reserved(tri.z); - smooth.push_back_reserved(1); - } - - mesh->set_triangles(triangles); - mesh->set_smooth(smooth); - } - - /* update attributes */ - - update_attributes(mesh->attributes, cached_data, frame_time); - - if (mesh->is_modified()) { - bool need_rebuild = mesh->triangles_is_modified(); - mesh->tag_update(scene_, need_rebuild); - } -} - -void AlembicProcedural::read_subd(AlembicObject *abc_object, Abc::chrono_t frame_time) -{ - if (abc_object->get_ignore_subdivision()) { - read_mesh(abc_object, frame_time); - return; - } - - CachedData &cached_data = abc_object->get_cached_data(); - - /* Update sockets. */ - - Object *object = abc_object->get_object(); - cached_data.transforms.copy_to_socket(frame_time, object, object->get_tfm_socket()); - - if (object->is_modified()) { - object->tag_update(scene_); - } - - /* Only update sockets for the original Geometry. */ - if (abc_object->instance_of) { - return; - } - - if (abc_object->subd_max_level_is_modified() || abc_object->subd_dicing_rate_is_modified()) { - /* need to reset the current data is something changed */ - cached_data.invalidate_last_loaded_time(); - } - - Mesh *mesh = static_cast<Mesh *>(object->get_geometry()); - - /* Make sure shader ids are also updated. */ - if (mesh->used_shaders_is_modified()) { - mesh->tag_shader_modified(); - } - - /* Cycles overwrites the original triangles when computing displacement, so we always have to - * repass the data if something is animated (vertices most likely) to avoid buffer overflows. */ - if (!cached_data.is_constant()) { - cached_data.invalidate_last_loaded_time(); - - /* remove previous triangles, if any */ - array<int> triangles; - mesh->set_triangles(triangles); - } - - mesh->clear_non_sockets(); - - /* Alembic is OpenSubDiv compliant, there is no option to set another subdivision type. */ - mesh->set_subdivision_type(Mesh::SubdivisionType::SUBDIVISION_CATMULL_CLARK); - mesh->set_subd_max_level(abc_object->get_subd_max_level()); - mesh->set_subd_dicing_rate(abc_object->get_subd_dicing_rate()); - - cached_data.vertices.copy_to_socket(frame_time, mesh, mesh->get_verts_socket()); - - /* cached_data.shader is also used for subd_shader */ - cached_data.shader.copy_to_socket(frame_time, mesh, mesh->get_subd_shader_socket()); - - cached_data.subd_start_corner.copy_to_socket( - frame_time, mesh, mesh->get_subd_start_corner_socket()); - - cached_data.subd_num_corners.copy_to_socket( - frame_time, mesh, mesh->get_subd_num_corners_socket()); - - cached_data.subd_smooth.copy_to_socket(frame_time, mesh, mesh->get_subd_smooth_socket()); - - cached_data.subd_ptex_offset.copy_to_socket( - frame_time, mesh, mesh->get_subd_ptex_offset_socket()); - - cached_data.subd_face_corners.copy_to_socket( - frame_time, mesh, mesh->get_subd_face_corners_socket()); - - cached_data.num_ngons.copy_to_socket(frame_time, mesh, mesh->get_num_ngons_socket()); - - cached_data.subd_creases_edge.copy_to_socket( - frame_time, mesh, mesh->get_subd_creases_edge_socket()); - - cached_data.subd_creases_weight.copy_to_socket( - frame_time, mesh, mesh->get_subd_creases_weight_socket()); - - mesh->set_num_subd_faces(mesh->get_subd_shader().size()); - - /* Update attributes. */ - - update_attributes(mesh->subd_attributes, cached_data, frame_time); - - if (mesh->is_modified()) { - bool need_rebuild = (mesh->triangles_is_modified()) || - (mesh->subd_num_corners_is_modified()) || - (mesh->subd_shader_is_modified()) || (mesh->subd_smooth_is_modified()) || - (mesh->subd_ptex_offset_is_modified()) || - (mesh->subd_start_corner_is_modified()) || - (mesh->subd_face_corners_is_modified()); - - mesh->tag_update(scene_, need_rebuild); - } -} - -void AlembicProcedural::read_curves(AlembicObject *abc_object, Abc::chrono_t frame_time) -{ - CachedData &cached_data = abc_object->get_cached_data(); - - /* update sockets */ - - Object *object = abc_object->get_object(); - cached_data.transforms.copy_to_socket(frame_time, object, object->get_tfm_socket()); - - if (object->is_modified()) { - object->tag_update(scene_); - } - - /* Only update sockets for the original Geometry. */ - if (abc_object->instance_of) { - return; - } - - Hair *hair = static_cast<Hair *>(object->get_geometry()); - - /* Make sure shader ids are also updated. */ - if (hair->used_shaders_is_modified()) { - hair->tag_curve_shader_modified(); - } - - cached_data.curve_keys.copy_to_socket(frame_time, hair, hair->get_curve_keys_socket()); - - cached_data.curve_radius.copy_to_socket(frame_time, hair, hair->get_curve_radius_socket()); - - cached_data.curve_shader.copy_to_socket(frame_time, hair, hair->get_curve_shader_socket()); - - cached_data.curve_first_key.copy_to_socket(frame_time, hair, hair->get_curve_first_key_socket()); - - /* update attributes */ - - update_attributes(hair->attributes, cached_data, frame_time); - - const bool rebuild = (hair->curve_keys_is_modified() || hair->curve_radius_is_modified()); - hair->tag_update(scene_, rebuild); -} - -void AlembicProcedural::walk_hierarchy( - IObject parent, - const ObjectHeader &header, - MatrixSamplesData matrix_samples_data, - const unordered_map<std::string, AlembicObject *> &object_map, - Progress &progress) -{ - if (progress.get_cancel()) { - return; - } - - IObject next_object; - - MatrixSampleMap concatenated_xform_samples; - - if (IXform::matches(header)) { - IXform xform(parent, header.getName()); - - IXformSchema &xs = xform.getSchema(); - - if (xs.getNumOps() > 0) { - TimeSamplingPtr ts = xs.getTimeSampling(); - MatrixSampleMap local_xform_samples; - - MatrixSampleMap *temp_xform_samples = nullptr; - if (matrix_samples_data.samples == nullptr) { - /* If there is no parent transforms, fill the map directly. */ - temp_xform_samples = &concatenated_xform_samples; - } - else { - /* use a temporary map */ - temp_xform_samples = &local_xform_samples; - } - - for (size_t i = 0; i < xs.getNumSamples(); ++i) { - chrono_t sample_time = ts->getSampleTime(index_t(i)); - XformSample sample = xs.getValue(ISampleSelector(sample_time)); - temp_xform_samples->insert({sample_time, sample.getMatrix()}); - } - - if (matrix_samples_data.samples != nullptr) { - concatenate_xform_samples( - *matrix_samples_data.samples, local_xform_samples, concatenated_xform_samples); - } - - matrix_samples_data.samples = &concatenated_xform_samples; - matrix_samples_data.time_sampling = ts; - } - - next_object = xform; - } - else if (ISubD::matches(header)) { - ISubD subd(parent, header.getName()); - - unordered_map<std::string, AlembicObject *>::const_iterator iter; - iter = object_map.find(subd.getFullName()); - - if (iter != object_map.end()) { - AlembicObject *abc_object = iter->second; - abc_object->iobject = subd; - abc_object->schema_type = AlembicObject::SUBD; - - if (matrix_samples_data.samples) { - abc_object->xform_samples = *matrix_samples_data.samples; - abc_object->xform_time_sampling = matrix_samples_data.time_sampling; - } - } - - next_object = subd; - } - else if (IPolyMesh::matches(header)) { - IPolyMesh mesh(parent, header.getName()); - - unordered_map<std::string, AlembicObject *>::const_iterator iter; - iter = object_map.find(mesh.getFullName()); - - if (iter != object_map.end()) { - AlembicObject *abc_object = iter->second; - abc_object->iobject = mesh; - abc_object->schema_type = AlembicObject::POLY_MESH; - - if (matrix_samples_data.samples) { - abc_object->xform_samples = *matrix_samples_data.samples; - abc_object->xform_time_sampling = matrix_samples_data.time_sampling; - } - } - - next_object = mesh; - } - else if (ICurves::matches(header)) { - ICurves curves(parent, header.getName()); - - unordered_map<std::string, AlembicObject *>::const_iterator iter; - iter = object_map.find(curves.getFullName()); - - if (iter != object_map.end()) { - AlembicObject *abc_object = iter->second; - abc_object->iobject = curves; - abc_object->schema_type = AlembicObject::CURVES; - - if (matrix_samples_data.samples) { - abc_object->xform_samples = *matrix_samples_data.samples; - abc_object->xform_time_sampling = matrix_samples_data.time_sampling; - } - } - - next_object = curves; - } - else if (IFaceSet::matches(header)) { - // ignore the face set, it will be read along with the data - } - else if (IPoints::matches(header)) { - // unsupported for now - } - else if (INuPatch::matches(header)) { - // unsupported for now - } - else { - next_object = parent.getChild(header.getName()); - - if (next_object.isInstanceRoot()) { - unordered_map<std::string, AlembicObject *>::const_iterator iter; - - /* Was this object asked to be rendered? */ - iter = object_map.find(next_object.getFullName()); - - if (iter != object_map.end()) { - AlembicObject *abc_object = iter->second; - - /* Only try to render an instance if the original object is also rendered. */ - iter = object_map.find(next_object.instanceSourcePath()); - - if (iter != object_map.end()) { - abc_object->iobject = next_object; - abc_object->instance_of = iter->second; - - if (matrix_samples_data.samples) { - abc_object->xform_samples = *matrix_samples_data.samples; - abc_object->xform_time_sampling = matrix_samples_data.time_sampling; - } - } - } - } - } - - if (next_object.valid()) { - for (size_t i = 0; i < next_object.getNumChildren(); ++i) { - walk_hierarchy( - next_object, next_object.getChildHeader(i), matrix_samples_data, object_map, progress); - } - } -} - -void AlembicProcedural::build_caches(Progress &progress) -{ - size_t memory_used = 0; - - for (Node *node : objects) { - AlembicObject *object = static_cast<AlembicObject *>(node); - - if (progress.get_cancel()) { - return; - } - - if (object->schema_type == AlembicObject::POLY_MESH) { - if (!object->has_data_loaded()) { - IPolyMesh polymesh(object->iobject, Alembic::Abc::kWrapExisting); - IPolyMeshSchema schema = polymesh.getSchema(); - object->load_data_in_cache(object->get_cached_data(), this, schema, progress); - } - else if (object->need_shader_update) { - IPolyMesh polymesh(object->iobject, Alembic::Abc::kWrapExisting); - IPolyMeshSchema schema = polymesh.getSchema(); - read_attributes(this, - object->get_cached_data(), - schema, - schema.getUVsParam(), - object->get_requested_attributes(), - progress); - } - } - else if (object->schema_type == AlembicObject::CURVES) { - if (!object->has_data_loaded() || default_radius_is_modified() || - object->radius_scale_is_modified()) { - ICurves curves(object->iobject, Alembic::Abc::kWrapExisting); - ICurvesSchema schema = curves.getSchema(); - object->load_data_in_cache(object->get_cached_data(), this, schema, progress); - } - } - else if (object->schema_type == AlembicObject::SUBD) { - if (!object->has_data_loaded()) { - ISubD subd_mesh(object->iobject, Alembic::Abc::kWrapExisting); - ISubDSchema schema = subd_mesh.getSchema(); - object->load_data_in_cache(object->get_cached_data(), this, schema, progress); - } - else if (object->need_shader_update) { - ISubD subd_mesh(object->iobject, Alembic::Abc::kWrapExisting); - ISubDSchema schema = subd_mesh.getSchema(); - read_attributes(this, - object->get_cached_data(), - schema, - schema.getUVsParam(), - object->get_requested_attributes(), - progress); - } - } - - if (scale_is_modified() || object->get_cached_data().transforms.size() == 0) { - object->setup_transform_cache(object->get_cached_data(), scale); - } - - memory_used += object->get_cached_data().memory_used(); - - if (use_prefetch) { - if (memory_used > get_prefetch_cache_size_in_bytes()) { - progress.set_error("Error: Alembic Procedural memory limit reached"); - return; - } - } - } - - VLOG(1) << "AlembicProcedural memory usage : " << string_human_readable_size(memory_used); -} - -CCL_NAMESPACE_END - -#endif |