Maniphest T93013

One pixel output when sending a value through a node group into a mix node.
Closed, Duplicate
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Assigned To
None
Authored By
Jalen Jobes (RealJayJobes)
Nov 11 2021, 2:56 PM
Tags
  • BF Blender
  • Compositing
Subscribers
Jalen Jobes (RealJayJobes)
Philipp Oeser (lichtwerk)

Description

System Information
Operating system: Windows 10
CPU: Ryzen 7 3700x
Graphics card: RTX 2070 SUPER

Blender Version
Broken: 2.93.4, b720503lcec4, master, 2021-08-31
Worked: Unsure if it ever did. I'm fairly new.

Short description of error
Mix node with the exact same set up produces a one pixel result merely by grouping value nodes.

Exact steps for others to reproduce the error

  1. In the compositor; I have a subtract node plugged into a divide node, the values are irrelevant but I'm subtracting x value input by negative 100 then dividing by 100.
  2. The divide node is plugged into either socket of the mix node, the other mix value is irrelevantt but I have it set at white. When this mix node is viewed a full image is displayed.
  3. Duplicate the three nodes, but group the subtract and divide nodes and the new mix node outputs a single pixel.

KNOWN ISSUE: https://developer.blender.org/T48297 - The problem is the "Buffer Groups" option. Untoggling is a work around but now none of the groups are buffered solely for one value to work.

Related Objects

Event Timeline

Jalen Jobes (RealJayJobes) created this task.Nov 11 2021, 2:56 PM
Jalen Jobes (RealJayJobes) updated the task description.
Jalen Jobes (RealJayJobes) updated the task description.Nov 11 2021, 2:59 PM
Jalen Jobes (RealJayJobes) added projects: Compositing, Nodes.Nov 11 2021, 3:06 PM
Jalen Jobes (RealJayJobes) updated the task description.Nov 11 2021, 3:17 PM
Philipp Oeser (lichtwerk) changed the task status from Needs Triage to Needs Information from User.Nov 12 2021, 11:50 AM
Philipp Oeser (lichtwerk) added a subscriber: Philipp Oeser (lichtwerk).

Hi and thx for the report!

Isnt this a duplicate of T48297: Scalar Group Node Output is One Pixel Large then?
If not, please provide an example .blend file demonstration the issue, thx in advance.

Jalen Jobes (RealJayJobes) added a comment.Nov 12 2021, 3:21 PM
In T93013#1252818, @Philipp Oeser (lichtwerk) wrote:

Hi and thx for the report!

Isnt this a duplicate of T48297: Scalar Group Node Output is One Pixel Large then?
If not, please provide an example .blend file demonstration the issue, thx in advance.

Yes, my apologies! I didn't realize it was until after I made the report and did some further refined searches. I couldn't figure out how to delete my report so I added a link to the other one assuming someone would when they saw it was a duplicate.

Philipp Oeser (lichtwerk) added a comment.Nov 12 2021, 3:28 PM

Ah, OK, thx getting back, will merge then.

Philipp Oeser (lichtwerk) closed this task as a duplicate of T48297: Scalar Group Node Output is One Pixel Large.Nov 12 2021, 3:28 PM
Hans Goudey (HooglyBoogly) removed a project: Nodes.May 16 2022, 11:04 AM