Have to input value twice when using driver keys in node compositor #41572

New Issue

Sakari Leppä · 2014-08-25T14:56:03+02:00

Sakari Leppä commented

2014-08-25 14:56:03 +02:00

System Information

Windows 7 64-bit
NVIDIA Quadro 4000

Blender Version
Broken: Blender 2.71

Short description of error

If I want to change a value in comp with driver keys, using an input value node that is read from another place in the comp, I have to input the value twice.
The value that is read, is always the value you inserted just before the last time...the previous value.
I'm making a texture utility that uses driver keys a lot, and especially there this is a hindrance.

Exact steps for others to reproduce the error

.blend file attached. Press F12 to render and then change the value on the Value node to see the problem.
Note that if you use mouse to slide the value, it works fine. Inputting the number with keyboard causes the "lag".

node_driverkey_bug.blend

**System Information** Windows 7 64-bit NVIDIA Quadro 4000 **Blender Version** Broken: Blender 2.71 **Short description of error** If I want to change a value in comp with driver keys, using an input value node that is read from another place in the comp, I have to input the value twice. The value that is read, is always the value you inserted just before the last time...the previous value. I'm making a texture utility that uses driver keys a lot, and especially there this is a hindrance. **Exact steps for others to reproduce the error** .blend file attached. Press F12 to render and then change the value on the Value node to see the problem. Note that if you use mouse to slide the value, it works fine. Inputting the number with keyboard causes the "lag". ![driver_keys_bug.jpg](https://archive.blender.org/developer/F106637/driver_keys_bug.jpg) [node_driverkey_bug.blend](https://archive.blender.org/developer/F106638/node_driverkey_bug.blend)

Sakari Leppä commented

2014-08-25 14:56:03 +02:00

Changed status to: 'Open'

Sakari Leppä commented

2014-08-25 14:56:03 +02:00

Added subscriber: @SakariLeppa

Bastien Montagne commented

2014-08-25 15:39:58 +02:00

Changed status from 'Open' to: 'Archived'

Bastien Montagne closed this issue

2014-08-25 15:39:58 +02:00

Bastien Montagne self-assigned this 2014-08-25 15:39:58 +02:00

Bastien Montagne commented

2014-08-25 15:39:58 +02:00

Thanks for the report, but drivers in node systems are currently not working (well), this is a known TODO/limitation currently and not considered a bug.

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Have to input value twice when using driver keys in node compositor #41572