diff options
Diffstat (limited to 'intern/cycles/render/image_vdb.cpp')
| -rw-r--r-- | intern/cycles/render/image_vdb.cpp | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/intern/cycles/render/image_vdb.cpp b/intern/cycles/render/image_vdb.cpp new file mode 100644 index 00000000000..500131c2d84 --- /dev/null +++ b/intern/cycles/render/image_vdb.cpp @@ -0,0 +1,188 @@ +/* + * Copyright 2011-2020 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/image_vdb.h" + +#ifdef WITH_OPENVDB +# include <openvdb/openvdb.h> +# include <openvdb/tools/Dense.h> +#endif + +CCL_NAMESPACE_BEGIN + +VDBImageLoader::VDBImageLoader(const string &grid_name) : grid_name(grid_name) +{ +} + +VDBImageLoader::~VDBImageLoader() +{ +} + +bool VDBImageLoader::load_metadata(ImageMetaData &metadata) +{ +#ifdef WITH_OPENVDB + if (!grid) { + return false; + } + + bbox = grid->evalActiveVoxelBoundingBox(); + if (bbox.empty()) { + return false; + } + + /* Set dimensions. */ + openvdb::Coord dim = bbox.dim(); + openvdb::Coord min = bbox.min(); + metadata.width = dim.x(); + metadata.height = dim.y(); + metadata.depth = dim.z(); + + /* Set data type. */ + if (grid->isType<openvdb::FloatGrid>()) { + metadata.channels = 1; + } + else if (grid->isType<openvdb::Vec3fGrid>()) { + metadata.channels = 3; + } + else if (grid->isType<openvdb::BoolGrid>()) { + metadata.channels = 1; + } + else if (grid->isType<openvdb::DoubleGrid>()) { + metadata.channels = 1; + } + else if (grid->isType<openvdb::Int32Grid>()) { + metadata.channels = 1; + } + else if (grid->isType<openvdb::Int64Grid>()) { + metadata.channels = 1; + } + else if (grid->isType<openvdb::Vec3IGrid>()) { + metadata.channels = 3; + } + else if (grid->isType<openvdb::Vec3dGrid>()) { + metadata.channels = 3; + } + else if (grid->isType<openvdb::MaskGrid>()) { + metadata.channels = 1; + } + else { + return false; + } + + if (metadata.channels == 1) { + metadata.type = IMAGE_DATA_TYPE_FLOAT; + } + else { + metadata.type = IMAGE_DATA_TYPE_FLOAT4; + } + + /* Set transform from object space to voxel index. */ + openvdb::math::Mat4f grid_matrix = grid->transform().baseMap()->getAffineMap()->getMat4(); + Transform index_to_object; + for (int col = 0; col < 4; col++) { + for (int row = 0; row < 3; row++) { + index_to_object[row][col] = (float)grid_matrix[col][row]; + } + } + + Transform texture_to_index = transform_translate(min.x(), min.y(), min.z()) * + transform_scale(dim.x(), dim.y(), dim.z()); + + metadata.transform_3d = transform_inverse(index_to_object * texture_to_index); + metadata.use_transform_3d = true; + + return true; +#else + (void)metadata; + return false; +#endif +} + +bool VDBImageLoader::load_pixels(const ImageMetaData &, void *pixels, const size_t, const bool) +{ +#ifdef WITH_OPENVDB + if (grid->isType<openvdb::FloatGrid>()) { + openvdb::tools::Dense<float, openvdb::tools::LayoutXYZ> dense(bbox, (float *)pixels); + openvdb::tools::copyToDense(*openvdb::gridConstPtrCast<openvdb::FloatGrid>(grid), dense); + } + else if (grid->isType<openvdb::Vec3fGrid>()) { + openvdb::tools::Dense<openvdb::Vec3f, openvdb::tools::LayoutXYZ> dense( + bbox, (openvdb::Vec3f *)pixels); + openvdb::tools::copyToDense(*openvdb::gridConstPtrCast<openvdb::Vec3fGrid>(grid), dense); + } + else if (grid->isType<openvdb::BoolGrid>()) { + openvdb::tools::Dense<float, openvdb::tools::LayoutXYZ> dense(bbox, (float *)pixels); + openvdb::tools::copyToDense(*openvdb::gridConstPtrCast<openvdb::BoolGrid>(grid), dense); + } + else if (grid->isType<openvdb::DoubleGrid>()) { + openvdb::tools::Dense<float, openvdb::tools::LayoutXYZ> dense(bbox, (float *)pixels); + openvdb::tools::copyToDense(*openvdb::gridConstPtrCast<openvdb::DoubleGrid>(grid), dense); + } + else if (grid->isType<openvdb::Int32Grid>()) { + openvdb::tools::Dense<float, openvdb::tools::LayoutXYZ> dense(bbox, (float *)pixels); + openvdb::tools::copyToDense(*openvdb::gridConstPtrCast<openvdb::Int32Grid>(grid), dense); + } + else if (grid->isType<openvdb::Int64Grid>()) { + openvdb::tools::Dense<float, openvdb::tools::LayoutXYZ> dense(bbox, (float *)pixels); + openvdb::tools::copyToDense(*openvdb::gridConstPtrCast<openvdb::Int64Grid>(grid), dense); + } + else if (grid->isType<openvdb::Vec3IGrid>()) { + openvdb::tools::Dense<openvdb::Vec3f, openvdb::tools::LayoutXYZ> dense( + bbox, (openvdb::Vec3f *)pixels); + openvdb::tools::copyToDense(*openvdb::gridConstPtrCast<openvdb::Vec3IGrid>(grid), dense); + } + else if (grid->isType<openvdb::Vec3dGrid>()) { + openvdb::tools::Dense<openvdb::Vec3f, openvdb::tools::LayoutXYZ> dense( + bbox, (openvdb::Vec3f *)pixels); + openvdb::tools::copyToDense(*openvdb::gridConstPtrCast<openvdb::Vec3dGrid>(grid), dense); + } + else if (grid->isType<openvdb::MaskGrid>()) { + openvdb::tools::Dense<float, openvdb::tools::LayoutXYZ> dense(bbox, (float *)pixels); + openvdb::tools::copyToDense(*openvdb::gridConstPtrCast<openvdb::MaskGrid>(grid), dense); + } + + return true; +#else + (void)pixels; + return false; +#endif +} + +string VDBImageLoader::name() const +{ + return grid_name; +} + +bool VDBImageLoader::equals(const ImageLoader &other) const +{ +#ifdef WITH_OPENVDB + const VDBImageLoader &other_loader = (const VDBImageLoader &)other; + return grid == other_loader.grid; +#else + (void)other; + return true; +#endif +} + +void VDBImageLoader::cleanup() +{ +#ifdef WITH_OPENVDB + /* Free OpenVDB grid memory as soon as we can. */ + grid.reset(); +#endif +} + +CCL_NAMESPACE_END |