Commit: 0ee97bd5c42bf64021819c8571f4e9346abb23b9
Author: Antonioya
Date:   Wed Jan 2 17:43:09 2019 +0100
Branches: master
https://developer.blender.org/rB0ee97bd5c42bf64021819c8571f4e9346abb23b9

Fix T60051: Wrong stroke projection when viewmode set to Front

As the z-depth is calculated using the internal drawing, if we use the front 
mode the z-depth is wrong. The Front or Back mode must be used only for 
display, but not for calculation.

===================================================================

M       source/blender/editors/gpencil/drawgpencil.c

===================================================================

diff --git a/source/blender/editors/gpencil/drawgpencil.c 
b/source/blender/editors/gpencil/drawgpencil.c
index 5bb2d374c80..392c670696b 100644
--- a/source/blender/editors/gpencil/drawgpencil.c
+++ b/source/blender/editors/gpencil/drawgpencil.c
@@ -712,7 +712,8 @@ static void gp_draw_stroke_3d(tGPDdraw *tgpw, short 
thickness, const float ink[4
        int keep_size = (int)((tgpw->gpd) && (tgpw->gpd->flag & 
GP_DATA_STROKE_KEEPTHICKNESS));
        immUniform1i("keep_size", keep_size);
        immUniform1i("pixfactor", tgpw->gpd->pixfactor);
-       immUniform1i("xraymode", tgpw->gpd->xray_mode);
+       /* xray mode always to 3D space to avoid wrong zdepth calculation 
(T60051) */
+       immUniform1i("xraymode", GP_XRAY_3DSPACE);
 
        /* draw stroke curve */
        GPU_line_width(max_ff(curpressure * thickness, 1.0f));

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