Bone relation lines: draw between axis points #105427

Manually merged
Sybren A. Stüvel merged 14 commits from dr.sybren/blender:anim/bone-relation-lines into main 2023-03-21 15:19:48 +01:00

Design discussions in #105489

Add control overhow bone relation lines are drawn. Instead of always drawing from the head
of the child to the tail of the parent, give users a choice for the parent side of the line. This can now be toggled between the head and the tail of the bone, where the tail is Blender's original behaviour and is retained as default value.

image

image


This PR is related to #105466.

https://wiki.blender.org/wiki/Reference/Release_Notes/3.6/Animation_Rigging#Bone_Relation_Lines

**Design discussions in #105489** Add control overhow bone relation lines are drawn. Instead of always drawing from the head of the child to the tail of the parent, give users a choice for the parent side of the line. This can now be toggled between the head and the tail of the bone, where the tail is Blender's original behaviour and is retained as default value. ![image](/attachments/51137f6b-5dd4-48f6-ab06-705e42dfe4f1) ![image](/attachments/be51cc31-9b2c-4af8-aad7-60a43823e47a) ---- This PR is related to #105466. https://wiki.blender.org/wiki/Reference/Release_Notes/3.6/Animation_Rigging#Bone_Relation_Lines
Sybren A. Stüvel added 1 commit 2023-03-04 01:21:07 +01:00
buildbot/vexp-code-patch-coordinator Build done. Details
bda5c38e6f
Bone relation lines: draw between axis points
Change how bone relation lines are drawn. Instead of drawing from the head
of the child to the tail of the parent, use the "axis points" as start/end
point of the lines. This is the point used to draw the bone axes, and
thus can be modified via the "Axes Position" setting.
Sybren A. Stüvel added the
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labels 2023-03-04 01:21:29 +01:00
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Sybren A. Stüvel requested review from Jer Bot 2023-03-04 01:30:36 +01:00
Sybren A. Stüvel added 1 commit 2023-03-06 15:10:33 +01:00
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Sybren A. Stüvel added 1 commit 2023-03-06 18:03:32 +01:00
buildbot/vexp-code-patch-coordinator Build done. Details
8387558f23
Always draw the child-side of the relation at the bone head
Feedback from @JasonSchleifer
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Re-building after feedback on the design task #105489

@blender-bot package Re-building after feedback on the design task #105489
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Sybren A. Stüvel added 3 commits 2023-03-07 12:08:23 +01:00
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Sybren A. Stüvel added 1 commit 2023-03-10 13:12:16 +01:00
de0a68f272 Replace the 0-1 slider with an armature flag
The choice between drawing relation lines from the parent head or tail is
now a bitflag on the armature. There were plenty of unused flags left, so
it now doesn't take up any space any more.

The flag is wrapped in an RNA enum, so that there are distinct choices
'Head' and 'Tail'. This is preferred over a single checkbox.
Sybren A. Stüvel added 1 commit 2023-03-10 13:12:43 +01:00
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Sybren A. Stüvel added 2 commits 2023-03-13 11:51:45 +01:00
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Package build started. Download here when ready.

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Sybren A. Stüvel requested review from Christoph Lendenfeld 2023-03-13 11:56:56 +01:00
Sybren A. Stüvel removed review request for Jer Bot 2023-03-13 12:07:30 +01:00
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I removed @jerbot as reviewer, as in his comment on the design task is enough for me ;-)

Love the latest demo video. That checks all my boxes.

I removed @jerbot as reviewer, as [in his comment on the design task](https://projects.blender.org/blender/blender/issues/105489#issuecomment-896975) is enough for me ;-) > Love the latest demo video. That checks all my boxes.
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Looks right to me. Next step is to look at the ball display type and see if relationship lines can be drawn between bone heads that are already flagged as "connected". Feels related to this, but mostly useful when using non standard bone types.

Guessing this goes under that task?

Looks right to me. Next step is to look at the ball display type and see if relationship lines can be drawn between bone heads that are already flagged as "connected". Feels related to this, but mostly useful when using non standard bone types. Guessing this goes under that task?
Sybren A. Stüvel requested review from Jeroen Bakker 2023-03-13 16:16:33 +01:00
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Looks right to me. Next step is to look at the ball display type and see if relationship lines can be drawn between bone heads that are already flagged as "connected". Feels related to this, but mostly useful when using non standard bone types.

Guessing this goes under that task?

Yup, that's for #105466

> Looks right to me. Next step is to look at the ball display type and see if relationship lines can be drawn between bone heads that are already flagged as "connected". Feels related to this, but mostly useful when using non standard bone types. > > Guessing this goes under that task? Yup, that's for #105466
Jeroen Bakker reviewed 2023-03-14 08:42:57 +01:00
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I only checked the drawing part. Seems fine. The branch inside draw_bone_bone_line could be removed but don't think it will harm in this case.

I only checked the drawing part. Seems fine. The branch inside `draw_bone_bone_line` could be removed but don't think it will harm in this case.
@ -2026,0 +2028,4 @@
const float /*bone_tail*/[3],
const float parent_head[3],
const float parent_tail[3],
const short armature_flags)
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Can we use eArmature_Flag as a type?

Can we use `eArmature_Flag` as a type?
dr.sybren marked this conversation as resolved
Sybren A. Stüvel added 2 commits 2023-03-14 18:26:35 +01:00
Jeroen Bakker reviewed 2023-03-15 09:09:52 +01:00
@ -2025,1 +2025,4 @@
static void draw_bone_bone_line(ArmatureDrawContext *ctx,
const float bone_head[3],
const float /*bone_tail*/[3],
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We should remove unused parameters in static methods. Compilers are smart, but we should not rely on that.

We should remove unused parameters in static methods. Compilers are smart, but we should not rely on that.
dr.sybren marked this conversation as resolved
Christoph Lendenfeld reviewed 2023-03-17 12:34:06 +01:00
@ -2023,6 +2023,21 @@ static void pchan_draw_ik_lines(ArmatureDrawContext *ctx,
}
}
static void draw_bone_bone_line(ArmatureDrawContext *ctx,

I feel like this could get a better name. Unless you think this will draw other lines in the near future I'd call it draw_bone_relationship_lines
Tbh I am not sure if it is lines or line, the functions it calls use plural but it seems like they only draw a single line.

I feel like this could get a better name. Unless you think this will draw other lines in the near future I'd call it `draw_bone_relationship_lines` Tbh I am not sure if it is `lines` or `line`, the functions it calls use plural but it seems like they only draw a single line.
dr.sybren marked this conversation as resolved
Christoph Lendenfeld approved these changes 2023-03-17 12:47:58 +01:00
Christoph Lendenfeld left a comment
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apart from my small nitpick about the naming this lgtm

apart from my small nitpick about the naming this lgtm
Sybren A. Stüvel added 2 commits 2023-03-21 15:11:41 +01:00
Sybren A. Stüvel manually merged commit 45c1deac4f into main 2023-03-21 15:19:48 +01:00
Sybren A. Stüvel added this to the 3.6 LTS milestone 2023-03-21 15:25:20 +01:00
Sybren A. Stüvel deleted branch anim/bone-relation-lines 2023-03-21 15:25:30 +01:00
Sybren A. Stüvel added this to the Animation & Rigging project 2023-03-30 17:00:51 +02:00
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Trying to add documentation here.

Trying to add documentation [here](https://projects.blender.org/blender/blender-manual/pulls/104536).
Sybren A. Stüvel removed this from the Animation & Rigging project 2023-10-16 12:38:42 +02:00
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