[Bf-blender-cvs] [7767e080a03] master: Fix T66008 Viewport: hidden edges are partially visible

[Clément Foucault]

Commit: 7767e080a03174d0538444a82d3d7baf72d7b843
Author: Clément Foucault
Date:   Mon Jul 8 14:18:12 2019 +0200
Branches: master
https://developer.blender.org/rB7767e080a03174d0538444a82d3d7baf72d7b843

Fix T66008 Viewport: hidden edges are partially visible

This was a regression from 2.79. The zoffset was doubled for some reason.

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

M	source/blender/editors/screen/glutil.c

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

diff --git a/source/blender/editors/screen/glutil.c b/source/blender/editors/screen/glutil.c
index db44723fdb7..af1e0eeed79 100644
--- a/source/blender/editors/screen/glutil.c
+++ b/source/blender/editors/screen/glutil.c
@@ -475,6 +475,9 @@ void immDrawPixelsTex_clipping(IMMDrawPixelsTexState *state,
 
 float bglPolygonOffsetCalc(const float winmat[16], float viewdist, float dist)
 {
+  /* Seems like we have a factor of 2 more offset than 2.79 for some reason. Correct for this. */
+  dist *= 0.5f;
+
   if (winmat[15] > 0.5f) {
 #if 1
     return 0.00001f * dist * viewdist;  // ortho tweaking