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GPv3: Dash modifier #117758

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Lukas Tönne merged 29 commits from LukasTonne/blender:gp3-dash-modifier into main 2024-02-08 15:35:30 +01:00
Conversation 3 Commits 29 Files Changed 12 +1040
Lukas Tönne commented 2024-02-02 17:40:23 +01:00
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Reimplements the "Dash" (aka Dash-Dot) modifier of GPv2.

TODO:

Curve loops could be made threaded, but it doesn't seem worth the effort for a legacy feature.

  • Stroke segment property transfer (material, radius, opacity)
  • Cyclic dash support (not sure why this would ever be desirable, but it exists as a feature)
  • Cyclic input stroke support (in case of non-zero offset: last curve bridges gap instead of creating 2 separate curves)
  • Crash in drawing code when input curves are cyclic, for certain dash offset values. Might be a general drawing code bug (see also #117838 and #117833).
Reimplements the "Dash" (aka Dash-Dot) modifier of GPv2. TODO: Curve loops could be made threaded, but it doesn't seem worth the effort for a legacy feature. - [x] Stroke segment property transfer (material, radius, opacity) - [x] Cyclic dash support (_not sure why this would ever be desirable, but it exists as a feature_) - [x] Cyclic input stroke support (in case of non-zero offset: last curve bridges gap instead of creating 2 separate curves) - [x] Crash in drawing code when input curves are cyclic, for certain dash offset values. Might be a general drawing code bug (see also #117838 and #117833).
👍 1
Lukas Tönne added 8 commits 2024-02-02 17:40:37 +01:00
Lukas Tönne added 1 commit 2024-02-02 17:45:46 +01:00
Lukas Tönne added 1 commit 2024-02-05 10:35:15 +01:00
Lukas Tönne added 3 commits 2024-02-05 14:25:09 +01:00
Lukas Tönne added 1 commit 2024-02-05 14:48:36 +01:00
Lukas Tönne added 6 commits 2024-02-06 15:31:54 +01:00
Lukas Tönne added 1 commit 2024-02-06 16:17:27 +01:00
Lukas Tönne added 1 commit 2024-02-06 16:59:28 +01:00
Added attribute transfer from segments.
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Lukas Tönne changed title from WIP: GPv3: Dash modifier to GPv3: Dash modifier 2024-02-06 16:59:40 +01:00
Lukas Tönne added this to the Grease Pencil project 2024-02-06 16:59:45 +01:00
Lukas Tönne requested review from Falk David 2024-02-06 16:59:59 +01:00
Falk David commented 2024-02-08 10:54:03 +01:00
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@blender-bot build

@blender-bot build
Falk David requested changes 2024-02-08 11:11:25 +01:00
Falk David left a comment
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Thanks, I was actually able to follow the logic quite well, so kudos for putting in the extra effort 👍
Just a few cleanup remarks.

Thanks, I was actually able to follow the logic quite well, so kudos for putting in the extra effort 👍 Just a few cleanup remarks.
source/blender/editors/object/object_modifier.cc
@ -3728,0 +3732,4 @@
/** \name Dash Modifier
* \{ */
static bool grease_pencil_dash_modifier_segment_poll(bContext *C)
Falk David commented 2024-02-08 11:02:02 +01:00
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Maybe we should put the static grease pencil functions in a greasepencil namespace and get rid of the grease_pencil prefix.

Maybe we should put the `static` grease pencil functions in a `greasepencil` namespace and get rid of the `grease_pencil` prefix.
Lukas Tönne commented 2024-02-08 12:51:23 +01:00
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I think blender::ed::grease_pencil would be better than a naked root grease_pencil namespace, but yes.

I think `blender::ed::grease_pencil` would be better than a naked root `grease_pencil` namespace, but yes.
Falk David commented 2024-02-08 13:03:03 +01:00
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Even better, yes. So far, we've been using greasepencil (with no underscore) for the namespaces. (Maybe grease_pencil would be better, but then we should change all of them in one go)

Even better, yes. So far, we've been using `greasepencil` (with no underscore) for the namespaces. (Maybe `grease_pencil` would be better, but then we should change all of them in one go)
LukasTonne marked this conversation as resolved
source/blender/editors/object/object_modifier.cc
@ -3728,0 +3875,4 @@
ot->srna, "index", 0, 0, INT_MAX, "Index", "Index of the segment to remove", 0, INT_MAX);
}
enum {
Falk David commented 2024-02-08 10:57:57 +01:00
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Maybe use enum class here. Something like this:

enum class DashSegmentMoveDirection : int8_t {
   Up = -1,
   Down = 1,
};
Maybe use `enum class` here. Something like this: ``` enum class DashSegmentMoveDirection : int8_t { Up = -1, Down = 1, }; ```
LukasTonne marked this conversation as resolved
source/blender/editors/object/object_modifier.cc Outdated
@ -3728,0 +3938,4 @@
void OBJECT_OT_grease_pencil_dash_modifier_segment_move(wmOperatorType *ot)
{
static const EnumPropertyItem segment_move[] = {
{MOD_GREASE_PENCIL_DASH_SEGMENT_MOVE_UP, "UP", 0, "Up", ""},
Falk David commented 2024-02-08 10:59:28 +01:00
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-> int(DashSegmentMoveDirection::Up)

-> `int(DashSegmentMoveDirection::Up)`
LukasTonne marked this conversation as resolved
source/blender/modifiers/intern/MOD_grease_pencil_dash.cc Outdated
@ -0,0 +255,4 @@
foreach_dash(pattern_info,
src_points,
src_cyclic[src_curve_i],
[&](const IndexRange &src_points_range,
Falk David commented 2024-02-08 11:09:12 +01:00
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Could this lambda be declared above the loop? Maybe as create_dash/write_dash ?

Could this lambda be declared above the loop? Maybe as `create_dash`/`write_dash` ?
LukasTonne marked this conversation as resolved
Lukas Tönne reviewed 2024-02-08 13:56:25 +01:00
source/blender/makesdna/DNA_modifier_defaults.h
@ -875,0 +887,4 @@
.gap = 1, \
.radius = 1.0f, \
.opacity = 1.0f, \
.mat_nr = -1, \
Lukas Tönne commented 2024-02-08 13:56:25 +01:00
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This currently makes all dashes "invisible" by default by setting an invalid material index. Have to check how GPv2 handles these settings.

This currently makes all dashes "invisible" by default by setting an invalid material index. Have to check how GPv2 handles these settings.
LukasTonne marked this conversation as resolved
Lukas Tönne added 5 commits 2024-02-08 14:05:03 +01:00
Lukas Tönne added 1 commit 2024-02-08 14:08:05 +01:00
namespace grease_pencil -> greasepencil.
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Lukas Tönne commented 2024-02-08 14:08:19 +01:00
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@blender-bot build

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Lukas Tönne added 1 commit 2024-02-08 14:14:27 +01:00
Merge branch 'main' into gp3-dash-modifier
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Lukas Tönne commented 2024-02-08 14:14:50 +01:00
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Falk David approved these changes 2024-02-08 14:19:19 +01:00
Lukas Tönne merged commit 2c8de207b7 into main 2024-02-08 15:35:30 +01:00
Lukas Tönne referenced this issue from a commit 2024-02-08 15:35:30 +01:00
GPv3: Dash modifier
Lukas Tönne deleted branch gp3-dash-modifier 2024-02-08 15:35:32 +01:00
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