PArticles Textures Inteface Pin #91793

New Issue

Alexey · 2021-09-28T22:03:48+02:00

Alexey commented

2021-09-28 22:03:48 +02:00

System Information
Operating system: Windows 10 Home 64
Graphics card: 3080ti 12g
Blender Version
Broken:
2.93.4, branch: master, commit date: 2021-08-31 09:23, hash: b7205031ce, type: release
3.0.0 Alpha, branch: master, commit date: 2021-09-06 16:56, hash: d7d8eb7de4, type: release

bug_hair_particles.blend

Bug #1 Pin Inteface
in atached files

select pin - inteface changes at another textyring properties

and for select him:

Bug #2
On atached scenes
select Empty Press key: G Shift-Z and moving/
Changing Hight Displace, but not changing size of particles. For changins size need clicked listbox with Emtpty again

reselect Empty post moved.

System Information Operating system: Windows 10 Home 64 Graphics card: 3080ti 12g Blender Version Broken: 2.93.4, branch: master, commit date: 2021-08-31 09:23, hash: b7205031cec4, type: release 3.0.0 Alpha, branch: master, commit date: 2021-09-06 16:56, hash: d7d8eb7de468, type: release [bug_hair_particles.blend](https://archive.blender.org/developer/F10656032/bug_hair_particles.blend) Bug #1 Pin Inteface in atached files ![image.png](https://archive.blender.org/developer/F10656226/image.png) select pin - inteface changes at another textyring properties and for select him: ![image.png](https://archive.blender.org/developer/F10656081/image.png) **** Bug #2 On atached scenes select Empty Press key: G Shift-Z and moving/ Changing Hight Displace, but not changing size of particles. For changins size need clicked listbox with Emtpty again ![image.png](https://archive.blender.org/developer/F10656209/image.png) reselect Empty post moved.

Alexey commented

2021-09-28 22:03:48 +02:00

Added subscriber: @pseudoua

Pratik Borhade commented

2021-09-29 09:09:29 +02:00

Added subscriber: @PratikPB2123

Philipp Oeser commented

2021-09-29 14:50:56 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2021-09-29 14:50:56 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Philipp Oeser commented

2021-09-29 14:50:56 +02:00

Hi and thx for the report!
General rule first: please only one issue per report.

Regarding the first issue:

when looking at the ParticleTextureSlot texture, you are getting additional information from the texture slot (Influence & Mapping)
when pinning that particular texture only, you are "loosing" that additional information (but this is expected since now you are only looking at that ID [the texture] only)
reg. "interface changes at another texturing properties": not true afaict, the texture ID is still the same, no?
so does not seem to be a bug here?

Regarding the second issue:

seems weird to use Physics Velocity to affect size of the particles? Why not use Hair Length (this updates properly)
bug_hair_particles_corrected.blend
Physics Velocity is a bit of a special case, one could force a full update for this as well using the following (but since the "old" particle and hair system is "End of Life", this will most probably not see any fixes anymore...and would probably require more indepth look at it)

P2454: T91793_snippet



diff --git a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
index 55e8c5ed033..ebef3f8f24a 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
@@ -2003,7 +2003,7 @@ void DepsgraphRelationBuilder::build_particle_settings(ParticleSettings *part)
      * function. */
     if (mtex->texco == TEXCO_OBJECT && mtex->object != nullptr) {
       ComponentKey object_key(&mtex->object->id, NodeType::TRANSFORM);
-      add_relation(object_key, particle_settings_eval_key, "Particle Texture Space");
+      add_relation(object_key, particle_settings_reset_key, "Particle Texture Space");
     }
   }
   if (check_id_has_anim_component(&part->id)) {

Note relevant other commits regarding updates for object coords in particle settings: 2e3433c1f7 & c2b0d8b6d6

To sum it up: there is not a "real" bug here in the sense that this will see fixes.
That sufficient for you?

Hi and thx for the report! General rule first: please only one issue per report. Regarding the first issue: - when looking at the ParticleTextureSlot texture, you are getting additional information from the texture slot (`Influence` & `Mapping`) - when pinning that particular texture only, you are "loosing" that additional information (but this is expected since now you are only looking at that ID [the texture] only) - reg. "interface changes at another texturing properties": not true afaict, the texture ID is still the same, no? - so does not seem to be a bug here? Regarding the second issue: - seems weird to use `Physics Velocity` to affect size of the particles? Why not use `Hair Length` (this updates properly) [bug_hair_particles_corrected.blend](https://archive.blender.org/developer/F10670352/bug_hair_particles_corrected.blend) - `Physics Velocity` is a bit of a special case, one could force a full update for this as well using the following (but since the "old" particle and hair system is "End of Life", this will most probably not see any fixes anymore...and would probably require more indepth look at it) [P2454: T91793_snippet](https://archive.blender.org/developer/P2454.txt) ``` diff --git a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc index 55e8c5ed033..ebef3f8f24a 100644 --- a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc +++ b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc @@ -2003,7 +2003,7 @@ void DepsgraphRelationBuilder::build_particle_settings(ParticleSettings *part) * function. */ if (mtex->texco == TEXCO_OBJECT && mtex->object != nullptr) { ComponentKey object_key(&mtex->object->id, NodeType::TRANSFORM); - add_relation(object_key, particle_settings_eval_key, "Particle Texture Space"); + add_relation(object_key, particle_settings_reset_key, "Particle Texture Space"); } } if (check_id_has_anim_component(&part->id)) { ``` Note relevant other commits regarding updates for object coords in particle settings: 2e3433c1f7 & c2b0d8b6d6 To sum it up: there is not a "real" bug here in the sense that this will see fixes. That sufficient for you?

Alexey commented

2021-09-29 17:45:16 +02:00

seems weird to use Physics Velocity to affect size of the particles? Why not use Hair Length (this updates properly)

O, no "Hair Lenght" not only is not renewed under the influence of a Empty, but and but also does not correctly interpolate the size from the heightmap

> seems weird to use Physics Velocity to affect size of the particles? Why not use Hair Length (this updates properly) O, no "Hair Lenght" not only is not renewed under the influence of a Empty, but and but also does not correctly interpolate the size from the heightmap

Alexey commented

2021-09-29 18:03:46 +02:00

I realized that you are trying to tell me that this is not a bug, but a feature.
Of course you can say that these are trifles. Against the backdrop of the development of Node Geometry, mark the Particle System End of Life.
I just described what led me to an illogical moment and, it would seem, using the simplest example, I could not get the necessary elementary result.
I agree that this can be done with a Geometry Node, but you must agree that such a simple example was easier to execute through the particle system.
It used to be a Blendera feature, but now it is just used as a new Houdini.

Close the application. Yes, I have enough knowledge to do this through the Geometry of Nodes, but sometimes I take nostalgia when I don't want to strain and do something just relaxed.

Thank you for listening!
Best regards!

I realized that you are trying to tell me that this is not a bug, but a feature. Of course you can say that these are trifles. Against the backdrop of the development of Node Geometry, mark the Particle System End of Life. I just described what led me to an illogical moment and, it would seem, using the simplest example, I could not get the necessary elementary result. I agree that this can be done with a Geometry Node, but you must agree that such a simple example was easier to execute through the particle system. It used to be a Blendera feature, but now it is just used as a new Houdini. Close the application. Yes, I have enough knowledge to do this through the Geometry of Nodes, but sometimes I take nostalgia when I don't want to strain and do something just relaxed. Thank you for listening! Best regards!

Philipp Oeser commented

2021-09-30 09:36:53 +02:00

O, no "Hair Lenght" not only is not renewed under the influence of a Empty, but and but also does not correctly interpolate the size from the heightmap

Not sure what that means. Moving the empty updates sizes just fine in bug_hair_particles_corrected.blend, it doesnt for you?
Not sure what you mean by "correctly" interpolate the size from the heightmap?

All in all, looking at Geometry Nodes is probably a very wise choice though.

> O, no "Hair Lenght" not only is not renewed under the influence of a Empty, but and but also does not correctly interpolate the size from the heightmap Not sure what that means. Moving the empty updates sizes just fine in `bug_hair_particles_corrected.blend`, it doesnt for you? Not sure what you mean by "correctly" interpolate the size from the heightmap? All in all, looking at Geometry Nodes is probably a very wise choice though.

Philipp Oeser commented

2021-10-14 10:10:48 +02:00

Changed status from 'Needs User Info' to: 'Archived'

Philipp Oeser closed this issue

2021-10-14 10:10:48 +02:00

Philipp Oeser commented

2021-10-14 10:10:48 +02:00

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information.

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PArticles Textures Inteface Pin #91793