Blender Git Commit Log

Fix T91797: Cycles volume rendering artifact with overlapping volumes

With the new volume rendering code this was no longer accurate, we always
need to use a new dimension for the next volume segment.

Merge branch 'arcpatch-D9415' into transform-snap-base

Transform: interactive mode for setting a 'Snap Source'

This patch implements part of what was stated in {T66484}, with respect to `Base Point`.

## Introduction

The snapping feature of the transform tools has a variety of applications:
- Organization of nodes.
- Positioning of frames in precise time units.
- Retopology with snap to face
- Creation of armatures with bone positioning through the snap to volume
- Precise positioning of 3D or 2D objects in the surrounding geometry (CAD modeling)

The goal of this document is to make it more powerful for precision modeling and still supporting the old use cases without extra complexity.
The main topic addressed here is the introduction of a **interactive mode for setting a snap source** (See terminology).

## Terminology

* **Snap Source**: 3d coordinate * we want to snap from. (Currently defined by the `Snap With` options: `Closest`, `Center`, `Median` and `Active`).
* **Snap Target**: 3d coordinate* we want to snap to. (Vertices, Edges, Faces, Grid...)

## Interactive Mode for Editing a Snap Source

Currently the fixed snap point can only be obtained through the `Snap With` options. So it's a little tricky for the user to define a snap source point having so much geometry on an object.
Because of this, the user needs to resort to impractical solutions to get a point in the geometry.
See example of an impractical use:
{F11714181, layout=left, width=960, alt="The user used the cursor (which can be snapped) to choose the snap origin point."}
The user used the cursor (which can be snapped) to choose the snap source point.

While it is possible to work around this current limitation, it is important to reduce the number of steps and allow the user to set a snap source point through an optional interactive mode during a transformation.

The proposed solution is to be able to move the current snap source point through a modal modifier activated with a key (eg. B).
The snap source point can thus "snap" to the elements in the scene (vertex, mid-edge, Lamp, ?) during this mode.
{F9122814, layout=left, width=960, alt="Base Point Snap, example of transform operation via the shortcut (not the tool). After pressing g and the snap base change shortcut (e.g., shift + ctrl) the user set the base point. The base point is then visible until the end of the operation. The z axis constrains the final position."}

## Implementation Details

- The feature will only be available in 3D View.
- The feature will only be available for `Move`, `Rotate` and `Scale` transform modes.
- The snap source editing will be enabled with a single click on the modifier key (B).
- Having a snap point indicated, the new snap origin point will be confirmed with the same buttons that confirms the transformation (but the transformation will not be concluded).
- The snap source editing can be canceled with the same key that activated it (B).
- If the transformation is done with "release_confirm" (common for gizmos), the new feature cannot be enabled.
- During the transformation, when enabling the feature, if the snap option is turned off in the scene, the snap will be forced on throughout the rest of the transformation (unless interactive mode is canceled).
- During a transformation, if no snap target is set for an element in the scene (Vertex, Grid...), the snap targets to geometry Vertex, Edge, Face, Center of Edge and Perpendicular of Edge will be set automatically.
- Snap cannot be turned off during the snap source editing.
- Constraint or similar modification features will not be available during the snap source editing.
- Text input will not be available during the snap source editing.
- When adding multiple snap points (A) the new prone snap source point will be indicated with an "X" drawing.
{F11817267}

Maniphest Tasks: T66484

Differential Revision: https://developer.blender.org/D9415

Merge branch 'master' into transform-snap-base

Revert fixes

Revert "Revert "Revert "Revert "Allow navigating while transforming""""

This reverts commit 717a971035071d36af03d65713408f4da1f69cb3.

Revert "Revert "Revert "Revert "Adjust snap source drawing when adding multiple snap points""""

This reverts commit b8bf40ed4bf618a6bc908e39278cfbfd385e0d4b.

Revert "Revert "Revert "Revert "Transform: interactive mode for editing a 'Snap Source'""""

This reverts commit 701f2dfd5bc61c0f37603880fa21abfe8b1d9620.

Merge remote-tracking branch 'origin/blender-v3.0-release'

Revert "Revert "Revert "Transform: interactive mode for editing a 'Snap Source'"""

This reverts commit 25fa6c74b977ac983a34b9adf5ab2f20fe2f4932.

Revert "Revert "Revert "Adjust snap source drawing when adding multiple snap points"""

This reverts commit c7f9a782aafcdd08868504584b2621afcf1356c2.

Revert "Revert "Revert "Allow navigating while transforming"""

This reverts commit 2a9cfdac7e126e37afb82e15a131717041f3d2f8.

Fix review comments #350124

Revert "Revert "Allow navigating while transforming""

This reverts commit 5e6fdaa07fff907e02b36813ccde0702bad4fb4d.

Revert "Revert "Adjust snap source drawing when adding multiple snap points""

This reverts commit 77df32548b9f377a834b54d0b740a6a51bb2f0a5.

Revert "Revert "Transform: interactive mode for editing a 'Snap Source'""

This reverts commit 805181bffae647a24e939c651da72a08c5c2b7cb.

Pose Library: clarify apply/blend operator names

The old names had "{verb} Pose Library Pose"; they are now named
"{verb} Pose Asset", which is shorter & clearer.

Cleanup: Simplify declarations in C++ header

Using `struct` everywhere is unnecessary in C++, and the typedefs
are also unnecessary.

Fix T93152: Cycles baking multiple selected object to active not working

Revert "Transform: interactive mode for editing a 'Snap Source'"

This reverts commit f19bd637e2c38b8b967944a88609a190b5179439.