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2020-10-20Volumes: simplify volumes in modifiers or on loadJacques Lucke
This changes how the simplify volumes setting works. Before, it only affeted viewport rendering. This was an issue, because all internal computations would still have to happen on the high resolution volumes. With this patch, the simplify setting already affects file loading and procedural generation of volumes. Rendering does not have to care about the simplify option anymore, it just gets the correct simplified version from the depsgraph. Reviewers: brecht Differential Revision: https://developer.blender.org/D9176
2020-10-01Volumes: support lower resolution in viewportJacques Lucke
The adds a new option to simplify volumes in the viewport. The setting can be found in the Simplify panel in the render properties. Volume objects use OpenVDB grids, which are sparse. For rendering, we have to convert sparse grids to dense grids (for now). Those require significantly more memory. Therefore, it's often a good idea to reduce the resolution of volumes in the viewport. Reviewers: brecht Differential Revision: https://developer.blender.org/D9040 Ref T73201.
2020-09-29Volumes: support selection and outlines in viewportJacques Lucke
Previously, one could only select a volume object in the outliner or by clicking on the object origin. This patch allows you to click on the actual volume. Furthermore, the generated (invisible) mesh that is used for selection is also used to draw an outline for the volume object now. Reviewers: brecht Differential Revision: https://developer.blender.org/D9022
2020-09-08Revert "BKE: Fix compiling with clang-tidy and readability-non-const-parameter"Clément Foucault
This reverts commit 637a5c964a01f5e8733e972cb8a30341eb91058e. I commited the previous commit because I wasn't building with openvdb. Compiling with openvdb fix the clang-tidy errror.
2020-09-08BKE: Fix compiling with clang-tidy and readability-non-const-parameterClément Foucault
2020-08-07Code Style: use "#pragma once" in source directoryJacques Lucke
This replaces header include guards with `#pragma once`. A couple of include guards are not removed yet (e.g. `__RNA_TYPES_H__`), because they are used in other places. This patch has been generated by P1561 followed by `make format`. Differential Revision: https://developer.blender.org/D8466
2020-03-20Cleanup: remove old header conventions recently re-introducedCampbell Barton
2020-03-18Volumes: add render settings for volume datablockBrecht Van Lommel
* 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
2020-03-18Objects: Eevee and workbench rendering of new Volume, Hair, PointCloudBrecht Van Lommel
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