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0025732: Visualization, TKOpenGl - back face culling should not affect textured font rendering

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OpenGl_TextFormatter - orient triangles in normal counter-clockwise order (GL_CCW).

Test-cases for issue #25732
This commit is contained in:
kgv 2015-02-12 11:22:22 +03:00 committed by bugmaster
parent 2fe4f8f37b
commit 348ff75335
3 changed files with 59 additions and 8 deletions
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16
src/OpenGl/OpenGl_TextFormatter.cxx
View File

@ -181,19 +181,19 @@ void OpenGl_TextFormatter::Result (NCollection_Vector<GLuint>& theTextures,
// apply floor on position to avoid blurring issues
// due to cross-pixel coordinates
aVerts.Append (floor(aRect.BottomLeft (aVec)));
aVerts.Append (floor(aRect.TopLeft (aVec)));
aVerts.Append (floor(aRect.TopRight (aVec)));
aTCrds.Append (aRectUV.BottomLeft (aVec));
aTCrds.Append (aRectUV.TopLeft (aVec));
aVerts.Append (floor(aRect.TopLeft (aVec)));
aVerts.Append (floor(aRect.BottomLeft (aVec)));
aTCrds.Append (aRectUV.TopRight (aVec));
aTCrds.Append (aRectUV.TopLeft (aVec));
aTCrds.Append (aRectUV.BottomLeft (aVec));
aVerts.Append (floor(aRect.BottomLeft (aVec)));
aVerts.Append (floor(aRect.TopRight (aVec)));
aVerts.Append (floor(aRect.BottomRight (aVec)));
aTCrds.Append (aRectUV.BottomLeft (aVec));
aTCrds.Append (aRectUV.TopRight (aVec));
aVerts.Append (floor(aRect.TopRight (aVec)));
aVerts.Append (floor(aRect.BottomLeft (aVec)));
aTCrds.Append (aRectUV.BottomRight (aVec));
aTCrds.Append (aRectUV.TopRight (aVec));
aTCrds.Append (aRectUV.BottomLeft (aVec));
}
}

26
tests/bugs/vis/bug25732_1 Normal file
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@ -0,0 +1,26 @@
puts "========"
puts "OCC25732"
puts "========"
puts ""
#########################################################################################
# Visualization, TKOpenGl - back face culling should not affect textured font rendering
#########################################################################################
box b -100 0 -200 50 100 200
vinit View1
vclear
vaxo
vdisplay b
vfit
vsetdispmode b 1
vdrawtext "Open\nCASCADE" 0 0 0 255 0 0 1 1 -45 1 50 1 Arial
set bug_info [vreadpixel 255 283 rgb name]
if {$bug_info != "RED"} {
puts "ERROR: OCC25732 is reproduced. Text is missed."
}
set only_screen 1

25
tests/bugs/vis/bug25732_2 Normal file
View File

@ -0,0 +1,25 @@
puts "========"
puts "OCC25732"
puts "========"
puts ""
#########################################################################################
# Visualization, TKOpenGl - back face culling should not affect textured font rendering
#########################################################################################
box b 1 2 3
explode b F
vinit
vsetdispmode 1
vdisplay b_1 b_2
vfit
vdrawtext "SAMPLE TEXT" 1 0 3 255 0 0 0 0 0 0 30 1
set bug_info [vreadpixel 260 137 rgb name]
if {$bug_info != "RED"} {
puts "ERROR: OCC25732 is reproduced. Text is missed."
}
set only_screen 1