Visual glitch when using trace facet in very specific configuration

[agrignard]

Describe the bug I didn't find a proper way yet to reproduce it on a simple model but I recently notify some glitch when using the trace facet.

The traced shape (the previous drawn) shape are somehow offsetted on x and y which make the trace feature not usable

To Reproduce I didn't find a way to reproduce it easily so far. It's happening on a custom model

Expected behavior Trace in the good direction (aligned on the black line)

Screenshots

Desktop (please complete the following information):

• OS: MAc OS
• PC Model: [if applicable, can be useful for displays, OpenGL problems)]
• GAMA version: 1.9.3

[agrignard]

Another example trying to make wind representation, all the drawn triangle should be in the same direction but there is this weird offset that actually seems to be somehow correlated with the environment or the 0, 0 of the cam. If you look on the center of the screen the effect does not appear and then it's get worse and worse going away from the center

[lesquoyb]

Is it happening on a model you could share ? Even if it's big, it would be easier for us to track

[agrignard]

Happening on this model https://github.com/agrignard/AAVS_Urban_Rythm_Unit_1_2024/blob/main/GAMA/Life_Factor/models/Life_exp_wind.gaml

however I am currently on this project so it might change in the following minutes/hours

[agrignard]

actually it looks like it's due to the fact the the layer are drawn with a z value position:{0,0,0.01};

the effect is less visible when the layer are drawn on zero.

However it should happen even with a z value (just trying to identify the issue)