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Issue with retina HDPI screen (OSX) #6

@Algiane

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@Algiane

Hi the ISCD team,

On retina HDPI screen the pixel density is twice the resolution, leading to issues with openGL functions that takes pixels dimensions as arguments (refs: this discussion or this official doc of apple).

In Medit, it creates multiple issues :

  1. Mesh is displayed using a quarter of the window size. Rescaling the window allows to solve the issue (temporary).

framebuffer-vs-display-issue

2. Clicking in a given area of the window picks entities in a different region (wrong x,y coordinates).

picking-issue

3. Using windows linking (Alt-c / Alt-l) and zooming unzooming creates different sizes between mesh dislaying.

link-and-zoom-issue

I will try to propose an admissible fix for this (but I am not expert in graphical stuff).
Best Regards,

Algiane

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