3 Commits

Author	SHA1	Message	Date
Brecht Van Lommel	7537cad576	Volumes: add render settings for volume datablock ... * Space: volume density and step size in object or world space * Step Size: override automatic step size * Clipping: values below this are ignored for tighter volume bounds The last two are Cycles only currently. Ref T73201	2020-03-18 11:23:05 +01:00
Brecht Van Lommel	fd53b72871	Objects: Eevee and workbench rendering of new Volume, Hair, PointCloud ... Only the volume drawing part is really finished and exposed to the user. Hair plugs into the existing hair rendering code and is fairly straightforward. The pointcloud drawing is a hack using overlays rather than Eevee and workbench. The most tricky part for volume rendering is the case where each volume grid has a different transform, which requires an additional matrix in the shader and non-trivial logic in Eevee volume drawing. In the common case were all the transforms match we don't use the additional per-grid matrix in the shader. Ref T73201, T68981 Differential Revision: https://developer.blender.org/D6955	2020-03-18 11:23:05 +01:00
Brecht Van Lommel	b0a1cf2c9a	Objects: add Volume object type, and prototypes for Hair and PointCloud ... Only the volume object is exposed in the user interface. It is based on OpenVDB internally. Drawing and rendering code will follow in another commit. https://wiki.blender.org/wiki/Source/Objects/Volume https://wiki.blender.org/wiki/Reference/Release_Notes/2.83/Volumes Hair and PointCloud object types are hidden behind a WITH_NEW_OBJECT_TYPES build option. These are unfinished, and included only to make it easier to cooperate on development in the future and avoid tricky merges. https://wiki.blender.org/wiki/Source/Objects/New_Object_Types Ref T73201, T68981 Differential Revision: https://developer.blender.org/D6945	2020-03-18 11:23:05 +01:00