Support dynamic attributes on instances #92926

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opened 2021-11-08 15:17:41 +01:00 by Hans Goudey · 14 comments

Hans Goudey commented

2021-11-08 15:17:41 +01:00

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Each instances geometry component currently has the id and position attribute, but supporting proper dynamic instance attributes will make many workflows simpler and faster.

Add a new "Instance" attribute domain, so that the user can choose when to use instance attributes. 1222c45544, ba8dd0f24f, 97533eede4
- Add it as a domain choice in most nodes with domain drop-downs.
- Change the areas that evaluate fields on instances to use the instances domain.
Add the ability to either set instance positions or point positions in each instance
- Note from Hans: I have never seen a user request for this, so I'm considering the task finished without this
Transfer named and anonymous attributes to instances in the instance on points node 221b7b27fc
#93473 Copy instance attributes to the real geometry when realizing instances
- Attributes already on the real geometry should take precedence in this process, otherwise the id for each point would be overridden by the instance ID.
Copy instance attributes in the instances to points node 386b112f76

As a later step, these instance attributes should be supported as an attribute source when rendering in Cycles and EEVEE. Proper design of code for that process should be considered separately though.

Each instances geometry component currently has the `id` and `position` attribute, but supporting proper dynamic instance attributes will make many workflows simpler and faster. - [x] Add a new "Instance" attribute domain, so that the user can choose when to use instance attributes. 1222c45544, ba8dd0f24f, 97533eede4 - [x] Add it as a domain choice in most nodes with domain drop-downs. - [x] Change the areas that evaluate fields on instances to use the instances domain. - [ ] Add the ability to either set instance positions or point positions in each instance * *Note from Hans: I have never seen a user request for this, so I'm considering the task finished without this* - [x] Transfer named and anonymous attributes to instances in the instance on points node 221b7b27fc - [x] #93473 Copy instance attributes to the real geometry when realizing instances - Attributes already on the real geometry should take precedence in this process, otherwise the `id` for each point would be overridden by the instance ID. - [x] Copy instance attributes in the instances to points node 386b112f76 As a later step, these instance attributes should be supported as an attribute source when rendering in Cycles and EEVEE. Proper design of code for that process should be considered separately though.

Hans Goudey commented

2021-11-08 15:17:41 +01:00

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Changed status from 'Needs Triage' to: 'Confirmed'

Changed status from 'Needs Triage' to: 'Confirmed'

Hans Goudey commented

2021-11-08 15:17:41 +01:00

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Added subscriber: @HooglyBoogly

Added subscriber: @HooglyBoogly

Hans Goudey commented

2021-11-08 15:17:53 +01:00

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Added subscriber: @erik85

Added subscriber: @erik85

Erik Abrahamsson commented

2021-11-08 16:44:04 +01:00

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I have done a few of these locally already. I could start with uploading a patch that enables custom attributes and the instance domain.

I have done a few of these locally already. I could start with uploading a patch that enables custom attributes and the instance domain.

Jacques Lucke commented

2021-11-08 17:30:49 +01:00

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Added subscriber: @JacquesLucke

Added subscriber: @JacquesLucke

Jacques Lucke commented

2021-11-08 17:30:49 +01:00

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@erik85 that would be great.

@erik85 that would be great.

Paul Larson commented

2021-11-08 18:03:43 +01:00

Added subscriber: @GeorgiaPacific

Added subscriber: @GeorgiaPacific

Jacob Merrill commented

2021-11-09 03:47:20 +01:00

Added subscriber: @JacobMerrill-1

Added subscriber: @JacobMerrill-1

blender-admin commented

2021-11-19 17:53:48 +01:00

This issue was referenced by 97533eede4

This issue was referenced by 97533eede444217bd28df50a721707bdce340403

(Deleted) commented

2021-11-27 22:22:02 +01:00

(Migrated from localhost:3001)

Added subscriber: @(Deleted)

Added subscriber: @(Deleted)

Yuro commented

2021-11-30 02:31:41 +01:00

Added subscriber: @Yuro

Added subscriber: @Yuro

Seby commented

2021-12-07 08:53:29 +01:00

Added subscriber: @1seby

Added subscriber: @1seby

炎臻 commented

2021-12-08 06:33:00 +01:00

Added subscriber: @PrettyFireNOI7

Added subscriber: @PrettyFireNOI7

Jacques Lucke commented

2022-10-20 15:19:47 +02:00

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Changed status from 'Confirmed' to: 'Resolved'

Changed status from 'Confirmed' to: 'Resolved'

Jacques Lucke closed this issue

2022-10-20 15:19:47 +02:00

Jacques Lucke self-assigned this 2022-10-20 15:19:47 +02:00

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