Opened 5 years ago

Last modified 5 years ago

#3822 assigned enhancement

VR Oculus Touch button is too easy to accidentally press

Reported by: goddard@… Owned by: Tom Goddard
Priority: normal Milestone:
Component: VR Version:
Keywords: Cc:
Blocked By: Blocking:
Notify when closed: Platform: all
Project: ChimeraX

Description 

The following bug report has been submitted:
Platform:        Windows-10-10.0.19041
ChimeraX Version: 1.2.dev202010122139 (2020-10-12 21:39:29 UTC)
Description
In VR it is very easy to accidently press the grip button on Oculus Touch controllers.  Currently that moves the models and it is pretty unpleasant when accidentally moving the models, often when putting the headset on.  The grip button is analog button (range 0 - 1) and it might help if it did not trigger until it is full pressed.  Currently default Steam bindings have it trigger at 0.25 and release at 0.20.  This can be changed in Steam binding panels but there appears to be no SteamVR API to programmatically change it.  Also it is not polite to override the user's Steam setting.

Still this is a substantial usability problem that could use a fix.

Log:
UCSF ChimeraX version: 1.2.dev202010122139 (2020-10-12)  
© 2016-2020 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  




OpenGL version: 3.3.0 NVIDIA 398.35
OpenGL renderer: GeForce GTX 1070 with Max-Q Design/PCIe/SSE2
OpenGL vendor: NVIDIA Corporation
Manufacturer: Micro-Star International Co., Ltd.
Model: GS65 Stealth Thin 8RF
OS: Microsoft Windows 10 Pro (Build 19041)
Memory: 34,195,668,992
MaxProcessMemory: 137,438,953,344
CPU: 12 Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz"
PyQt version: 5.15.1
Compiled Qt version: 5.15.1
Runtime Qt version: 5.15.1
Installed Packages:
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Change History (4)

comment:1 by Tom Goddard, 5 years ago

Component: Unassigned → VR
Owner: set to Tom Goddard
Platform: → all
Project: → ChimeraX
Status: new → assigned
Summary: ChimeraX bug report submission → VR Oculus Touch button is too easy to accidentally press
Type: defect → enhancement

comment:2 by Tom Goddard, 5 years ago

I tried setting in Steam my left Oculus controller to activation threshold 0.95 and deactivation 0.90 instead of the default 0.25 / 0.20. This is pretty easy and is specific to ChimeraX and the setting is saved and I verified by printing the activation / deactivation values when used in ChimeraX. Unfortunately it makes just a small improvement. The button has very little resistance. So going from 0.25 to 0.95 is a very small light motion. The button pivots with the swinging end moving about 1 cm.

Not sure how to improve the experience. It is especially trouble some in my recent 4 person VR meeting when any one person accidentally gripping in just one hand makes everyone suffer as the models move unintended.

comment:3 by Tom Goddard, 5 years ago

Changing the ChimeraX SteamVR controller binding to a custom one has the annoying behavior that if SteamVR is started without Steam being started (the usual behavior when ChimeraX VR enabled) then it complains it cannot find the controller binding and the VR shows SteamVR control panels. Dismissing those panels causes the controllers not to function. So custom bindings are not a good option.

comment:4 by Tom Goddard, 5 years ago

Ticket #3877 proposes having a button that disables trigger and index to avoid accidental presses. This could mostly resolve the touchy button problem.

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