Graph GLSL: Enable 'discard' in fragment shader w/o GLRendererQuirks.GLSLBuggyDiscard to avoid overdraw of such regions.

Historically we disabled `discard` due to an old NV tegra2 compiler bug,
which caused the compiler to freeze.

Today we no more seem to have this GLSL compiler issue, i.e. GLRendererQuirks.GLSLBuggyDiscard never gets set.

1 files changed, 4 insertions, 4 deletions

diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-msaa.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-msaa.glsl
index 1872af67f..d9d85e0e9 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-msaa.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass2-msaa.glsl
@@ -1,9 +1,9 @@
         // Pass-2: Dump Texture
         vec4 t = texture2D(gcu_FboTexUnit, gcv_FboTexCoord.st);
-        #if 0
-        if( 0.0 == t.a ) {
-          discard; // discard freezes NV tegra2 compiler
-        }
+        #if USE_DISCARD
+            if( 0.0 == t.a ) {
+                discard; // discard freezes NV tegra2 compiler
+            }
         #endif
 
         mgl_FragColor = t;