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11 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
006025ead0 Cycles: support for different 3D transform per volume grid 
This is not yet fully supported by automatic volume bounds but works fine in
most cases that will have mostly matching bounds.

Ref T73201
 2020-03-18 11:23:05 +01:00
Brecht Van Lommel
d8aa613d94 Cleanup: add ImageHandle to centralize image ownership logic 2020-03-11 20:35:38 +01:00
Brecht Van Lommel
d9c5f0d25f Cleanup: split Cycles Hair and Mesh classes, with Geometry base class 2020-02-07 12:18:15 +01:00
Campbell Barton
cd6b49f995 Cleanup: spelling 2019-07-07 15:38:41 +10:00
Campbell Barton
e12c08e8d1 ClangFormat: apply to source, most of intern 
Apply clang format as proposed in T53211.

For details on usage and instructions for migrating branches
without conflicts, see:

https://wiki.blender.org/wiki/Tools/ClangFormat
 2019-04-17 06:21:24 +02:00
Stefan Werner
b747524144 Cycles: speed up mesh volume bounds construction. 
Patch by Stefan, with minor tweaks by Brecht.
 2018-07-28 19:23:35 +02:00
Brecht Van Lommel
fddb4dee8a Fix T54356: volume rendering bug using just color attribute. 2018-03-19 21:22:15 +01:00
Brecht Van Lommel
d526b35ce2 Code cleanup: use spaces for aligned indentation. 2018-03-10 06:27:19 +01:00
Brecht Van Lommel
94b99949eb Fix T54202: Cycles crash rendering empty mesh volume after recent optimization. 2018-03-02 23:10:27 +01:00
Kévin Dietrich
7377d411b4 Cycles volume: fast empty space optimization by generating a tight mesh 
around the volume.

We generate a tight mesh around the active voxels of the volume in order
to effectively skip empty space, and start volume ray marching as close
to interesting volume data as possible. See code comments for details on
how the mesh generation algorithm works.

This gives up to 2x speedups in some scenes.

Reviewed by: brecht, dingto

Reviewers: #cycles

Subscribers: lvxejay, jtheninja, brecht

Differential Revision: https://developer.blender.org/D3038
 2018-03-01 11:54:01 +01:00