Simple Deform Modifier (Bending Mode, Empty as Pivot Object) and Lattice (w=1): Only Empty's z-axis as bending axis usable #68443

New Issue

Ingmar Franz · 2019-08-09T10:18:48+02:00

Ingmar Franz commented

2019-08-09 10:18:48 +02:00

System Information
Operating system: Windows 10
Graphics cards: Intel(R) UHD Graphics 630, NVIDIA GeForce GTX 1060

Blender Version
Broken: be060c3990 from 2019-06-29 20:58

Problem:
If I use an Empty as Pivot Point for a Simple Deform Modifier (Bending Mode) and a Lattice with w-dimension set to 1,
only setting the bending to Empty's local z-axis has an effect.
If I want the x-axis or the y-axis of my Empty to have a bending effect, the w-dimension of the Lattice has to be set to a value higher than 1.

But now comes the surprise to me:
With the w-dimension of the Lattice set to 1 and the bending axis set to the local z-axis of the Empty,
I rotate the Empty 90 degrees around the gloabal x-axis so that the Empty's local z-axis is now aligned with the global y-axis
and my Lattice is bended around the global y-axis.
Why can't I have the same effect by chosing the Empty as Pivot Point for the bending in the Simple Deform Modifier and setting the bending axis to the Empty's local y-axis?

Unfortunately, the Blender 2.8 Manual only explains "Axis, Origin" as the setting of the Pivot Point Object for the bending, but not the axis setting of this Pivot Point Object:
https://docs.blender.org/manual/en/2.80/modeling/modifiers/deform/simple_deform.html#bpy-types-simpledeformmodifier

**System Information** Operating system: Windows 10 Graphics cards: Intel(R) UHD Graphics 630, NVIDIA GeForce GTX 1060 **Blender Version** Broken: be060c3990ad from 2019-06-29 20:58 **Problem:** If I use an Empty as Pivot Point for a Simple Deform Modifier (Bending Mode) and a Lattice with w-dimension set to 1, only setting the bending to Empty's local z-axis has an effect. If I want the x-axis or the y-axis of my Empty to have a bending effect, the w-dimension of the Lattice has to be set to a value higher than 1. ***But now comes the surprise to me:*** With the w-dimension of the Lattice set to 1 and the bending axis set to the local z-axis of the Empty, I rotate the Empty 90 degrees around the gloabal x-axis so that the Empty's local z-axis is now aligned with the global y-axis and my Lattice is bended around the global y-axis. Why can't I have the same effect by chosing the Empty as Pivot Point for the bending in the Simple Deform Modifier and setting the bending axis to the Empty's local y-axis? Unfortunately, the Blender 2.8 Manual only explains "Axis, Origin" as the setting of the Pivot Point Object for the bending, but not the axis setting of this Pivot Point Object: https://docs.blender.org/manual/en/2.80/modeling/modifiers/deform/simple_deform.html#bpy-types-simpledeformmodifier

Ingmar Franz commented

2019-08-09 10:18:48 +02:00

Added subscriber: @IngmarFranz

Germano Cavalcante commented

2019-12-26 20:29:57 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2019-12-26 20:29:57 +01:00

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

Germano Cavalcante closed this issue

2019-12-26 20:29:57 +01:00

Germano Cavalcante self-assigned this 2019-12-26 20:29:57 +01:00

Germano Cavalcante commented

2019-12-26 20:29:57 +01:00

Deform Modifier is known to be a modifier with some limitations (See for example #71742).
It needs more properties to have greater control over the deformed object.

But while this lack of properties is inconvenient, it is not considered a bug.

For suggestions on how to improve existing features, please use other channels:
https://wiki.blender.org/wiki/Communication/Contact#User_Feedback_and_Requests

Deform Modifier is known to be a modifier with some limitations (See for example #71742). It needs more properties to have greater control over the deformed object. But while this lack of properties is inconvenient, it is not considered a bug. For suggestions on how to improve existing features, please use other channels: https://wiki.blender.org/wiki/Communication/Contact#User_Feedback_and_Requests

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Simple Deform Modifier (Bending Mode, Empty as Pivot Object) and Lattice (w=1): Only Empty's z-axis as bending axis usable #68443