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Open Bug report #2223 incorrect radar overlay near screen edges
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kracken (kracken) has been working on this issue since January 28, 2013 (20:46)
Description
[http://sourceforge.net/p/ufoai/bugs/2223 Item 2223] imported from sourceforge.net tracker on 2013-01-28 19:26:38 rev 27448 see the screenshots. as soon as map is moved a few pixels so that radar visible area touches screen edge, it is incorrectly covered as invisible ===== Comments Ported from Sourceforge ===== ====== richlv (2009-12-12 15:47:22) ====== correct overlay ====== richlv (2009-12-12 15:52:48) ====== incorect overlay ====== tlh2000 (2009-12-22 09:15:24) ====== hopefully kracken can help us here ====== kracken (2009-12-22 16:16:25) ====== radar overlay properly drawn only on left side of the screen ====== kracken (2009-12-22 16:16:50) ====== radar overlay properly drawn only on right side of the screen ====== kracken (2009-12-22 16:19:02) ====== The problem does not come from the creation of the overlay, I checked it is OK. The problem comes from the display of the overlay on the 2D geoscape. (on 3D geoscape, everything is fine). Look at R_DrawFlatGeoscape(), in r_draw.c. The problem arises when the center of the map goes beyond Indonesia. This is due to the fact that Indonesia is the right side of the overlay map. Therefore, the value of 'cx' switches from 1.0 to 0.0. For some reason, the radar overlay is only drawn in left part of the screen, or right part, but not both (the overlay is not wrapped around earth). You can't see it because there is the HUD over the right part of the map, but if you move it you see this problem better (see screenshot, between both pictures I moved the map slightly to the left so that nx switched from a value slighlty below 1.0 to a value slightly above 0.0). So I guess the problem is at line 486 :"glDrawArrays(GL_QUADS, 0, 4);" Or maybe when radar texture is created? (shouldn't there be some it_wrappic somewhere?) I don't know how to fix that, but I hope the informations I found will help you. ====== tlh2000 (2010-05-10 20:42:32) ====== https://sourceforge.net/tracker/index.php?func=detail&aid=2998516&group_id=157793&atid=805242 ====== aduke1 (2012-10-01 00:17:57) ====== - **milestone**: 2.3 --> 2.3.x
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