ID 448432 - Reverse directions are displayed when setting the World/Screen vector space of the Vector Inspector.

Problem summary
Reverse directions are displayed when setting the World/Screen vector space of the Vector Inspector.

Customer reported version
mari.4.6v3

Customer reported platform

Steps to reproduce

1) In Mari, open the example head project.

2) Select the Ortho/UV tab for viewing both viewers at once.

3) Select the Vector Paint tool and begin painting the head object upwards for purple, and downwards for green.

4) Bake the paint onto the model, then select the Vector Inspector tool.

5) Move the mouse cursor between the Ortho/UV viewports observing the directional markers.

6) Set the Vector Inspector vector space for 'World', and view the output of the directional markers.

Expected behavior
The vector inspector directional markers should display the correct direction of vector paint.

Actual behavior
The World directional markers appear reversed and inaccurate for the vector paint workflow. This is also apparent with the Screen vector space, as it uses the World space as part of the Ortho viewport.

Workaround
Using the Tangent vector space seems to have the accurate representation of the directional markers.

Reproduced by Support in:
Mari 4.6v4 - Windows 10

Mari 4.6v3 - Windows 10

Mari 4.5v1 - Windows 10

Mari 4.0v1 - Windows 10

Mari 3.2v1 - Windows 10
 

Unable to reproduce bug in:
Mari 3.0v1 - Windows 10

Earliest version tested
Mari 3.0v1 - This issue doesn't appear in this version and has regressed