diff options
author | Lukas Stockner <lukas.stockner@freenet.de> | 2022-04-02 01:11:11 +0300 |
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committer | Lukas Stockner <lukas.stockner@freenet.de> | 2022-04-02 07:14:27 +0300 |
commit | ad35453cd19b3db779b0b3a90feac2e93c7a73cf (patch) | |
tree | 3ad7893815bda3e34e18302422ad1f978e828603 /source/blender/blenkernel/intern/object.cc | |
parent | 5387d33e5f954c4cecdb7ffd3d1042d8632d6c15 (diff) |
Cycles: Add support for light groups
Light groups are a type of pass that only contains lighting from a subset of light sources.
They are created in the View layer, and light sources (lamps, objects with emissive materials
and/or the environment) can be assigned to a group.
Currently, each light group ends up generating its own version of the Combined pass.
In the future, additional types of passes (e.g. shadowcatcher) might be getting their own
per-lightgroup versions.
The lightgroup creation and assignment is not Cycles-specific, so Eevee or external render
engines could make use of it in the future.
Note that Lightgroups are identified by their name - therefore, the name of the Lightgroup
in the View Layer and the name that's set in an object's settings must match for it to be
included.
Currently, changing a Lightgroup's name does not update objects - this is planned for the
future, along with other features such as denoising for light groups and viewing them in
preview renders.
Original patch by Alex Fuller (@mistaed), with some polishing by Lukas Stockner (@lukasstockner97).
Differential Revision: https://developer.blender.org/D12871
Diffstat (limited to 'source/blender/blenkernel/intern/object.cc')
-rw-r--r-- | source/blender/blenkernel/intern/object.cc | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/object.cc b/source/blender/blenkernel/intern/object.cc index c00a403d5e9..833e6f882f1 100644 --- a/source/blender/blenkernel/intern/object.cc +++ b/source/blender/blenkernel/intern/object.cc @@ -260,6 +260,10 @@ static void object_copy_data(Main *bmain, ID *id_dst, const ID *id_src, const in else { ob_dst->preview = nullptr; } + + if (ob_src->lightgroup) { + ob_dst->lightgroup = (LightgroupMembership *)MEM_dupallocN(ob_src->lightgroup); + } } static void object_free_data(ID *id) @@ -310,6 +314,8 @@ static void object_free_data(ID *id) } BKE_previewimg_free(&ob->preview); + + MEM_SAFE_FREE(ob->lightgroup); } static void library_foreach_modifiersForeachIDLink(void *user_data, @@ -584,6 +590,10 @@ static void object_blend_write(BlendWriter *writer, ID *id, const void *id_addre BLO_write_struct_list(writer, LinkData, &ob->pc_ids); BKE_previewimg_blend_write(writer, ob->preview); + + if (ob->lightgroup) { + BLO_write_struct(writer, LightgroupMembership, ob->lightgroup); + } } /* XXX deprecated - old animation system */ @@ -800,6 +810,8 @@ static void object_blend_read_data(BlendDataReader *reader, ID *id) BLO_read_data_address(reader, &ob->preview); BKE_previewimg_blend_read(reader, ob->preview); + + BLO_read_data_address(reader, &ob->lightgroup); } /* XXX deprecated - old animation system */ |