diff options
Diffstat (limited to 'source/blender/draw/engines/eevee_next/eevee_cryptomatte.cc')
| -rw-r--r-- | source/blender/draw/engines/eevee_next/eevee_cryptomatte.cc | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/source/blender/draw/engines/eevee_next/eevee_cryptomatte.cc b/source/blender/draw/engines/eevee_next/eevee_cryptomatte.cc new file mode 100644 index 00000000000..10be121f533 --- /dev/null +++ b/source/blender/draw/engines/eevee_next/eevee_cryptomatte.cc @@ -0,0 +1,132 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later + * Copyright 2022 Blender Foundation. */ +#include "BKE_cryptomatte.hh" + +#include "GPU_material.h" + +#include "eevee_cryptomatte.hh" +#include "eevee_instance.hh" +#include "eevee_renderbuffers.hh" + +namespace blender::eevee { + +void Cryptomatte::begin_sync() +{ + const eViewLayerEEVEEPassType enabled_passes = static_cast<eViewLayerEEVEEPassType>( + inst_.film.enabled_passes_get() & + (EEVEE_RENDER_PASS_CRYPTOMATTE_OBJECT | EEVEE_RENDER_PASS_CRYPTOMATTE_ASSET | + EEVEE_RENDER_PASS_CRYPTOMATTE_ASSET)); + + session_.reset(); + object_layer_ = nullptr; + asset_layer_ = nullptr; + material_layer_ = nullptr; + + if (enabled_passes && !inst_.is_viewport()) { + session_.reset(BKE_cryptomatte_init_from_view_layer(inst_.view_layer)); + + for (const std::string &layer_name : + bke::cryptomatte::BKE_cryptomatte_layer_names_get(*session_)) { + StringRef layer_name_ref = layer_name; + bke::cryptomatte::CryptomatteLayer *layer = bke::cryptomatte::BKE_cryptomatte_layer_get( + *session_, layer_name); + if (layer_name_ref.endswith(RE_PASSNAME_CRYPTOMATTE_OBJECT)) { + object_layer_ = layer; + } + else if (layer_name_ref.endswith(RE_PASSNAME_CRYPTOMATTE_ASSET)) { + asset_layer_ = layer; + } + else if (layer_name_ref.endswith(RE_PASSNAME_CRYPTOMATTE_MATERIAL)) { + material_layer_ = layer; + } + } + } + + if (!(enabled_passes & + (EEVEE_RENDER_PASS_CRYPTOMATTE_OBJECT | EEVEE_RENDER_PASS_CRYPTOMATTE_ASSET))) { + cryptomatte_object_buf.resize(16); + } +} + +void Cryptomatte::sync_object(Object *ob, ResourceHandle res_handle) +{ + const eViewLayerEEVEEPassType enabled_passes = inst_.film.enabled_passes_get(); + if (!(enabled_passes & + (EEVEE_RENDER_PASS_CRYPTOMATTE_OBJECT | EEVEE_RENDER_PASS_CRYPTOMATTE_ASSET))) { + return; + } + + uint32_t resource_id = res_handle.resource_index(); + float2 object_hashes(0.0f, 0.0f); + + if (enabled_passes & EEVEE_RENDER_PASS_CRYPTOMATTE_OBJECT) { + object_hashes[0] = register_id(EEVEE_RENDER_PASS_CRYPTOMATTE_OBJECT, ob->id); + } + + if (enabled_passes & EEVEE_RENDER_PASS_CRYPTOMATTE_ASSET) { + Object *asset = ob; + while (asset->parent) { + asset = asset->parent; + } + object_hashes[1] = register_id(EEVEE_RENDER_PASS_CRYPTOMATTE_ASSET, asset->id); + } + cryptomatte_object_buf.get_or_resize(resource_id) = object_hashes; +} + +void Cryptomatte::sync_material(const ::Material *material) +{ + /* Material crypto hashes are generated during shader codegen stage. We only need to register + * them to store inside the metadata. */ + if (material_layer_ && material) { + material_layer_->add_ID(material->id); + } +} + +void Cryptomatte::end_sync() +{ + cryptomatte_object_buf.push_update(); + + object_layer_ = nullptr; + asset_layer_ = nullptr; + material_layer_ = nullptr; +} + +float Cryptomatte::register_id(const eViewLayerEEVEEPassType layer, const ID &id) const +{ + BLI_assert(ELEM(layer, + EEVEE_RENDER_PASS_CRYPTOMATTE_OBJECT, + EEVEE_RENDER_PASS_CRYPTOMATTE_ASSET, + EEVEE_RENDER_PASS_CRYPTOMATTE_MATERIAL)); + + uint32_t cryptomatte_hash = 0; + if (session_) { + if (layer == EEVEE_RENDER_PASS_CRYPTOMATTE_OBJECT) { + BLI_assert(object_layer_); + cryptomatte_hash = object_layer_->add_ID(id); + } + else if (layer == EEVEE_RENDER_PASS_CRYPTOMATTE_ASSET) { + BLI_assert(asset_layer_); + cryptomatte_hash = asset_layer_->add_ID(id); + } + else if (layer == EEVEE_RENDER_PASS_CRYPTOMATTE_MATERIAL) { + BLI_assert(material_layer_); + cryptomatte_hash = material_layer_->add_ID(id); + } + } + else { + const char *name = &id.name[2]; + const int name_len = BLI_strnlen(name, MAX_NAME - 2); + cryptomatte_hash = BKE_cryptomatte_hash(name, name_len); + } + + return BKE_cryptomatte_hash_to_float(cryptomatte_hash); +} + +void Cryptomatte::store_metadata(RenderResult *render_result) +{ + if (session_) { + BKE_cryptomatte_store_metadata(&*session_, render_result, inst_.view_layer); + } +} + +} // namespace blender::eevee
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