Bug 801: Graph OpenGL ES2 and ES3 Compatibility

- Remove 'const' qualifier in shader graph code for non 'absolute' const values

- Use extension directive OES_standard_derivatives only for ES2.0, not ES3.0 (graph shader)

- Compare float w/ float literals, not int literals!

- Android Demo NEWTGraphUI2pActivity:
  - Is a VBAA example, hence disable scene MSAA!

1 files changed, 7 insertions, 7 deletions

diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve-lineAA.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve-lineAA.glsl
index 16dda5947..770ab3d71 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve-lineAA.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-pass1-curve-lineAA.glsl
@@ -3,13 +3,13 @@
     if( gcv_TexCoord.z > 0.0 ) {
          // pass-1: AA Lines
          #if 1
-             // const float dist = sqrt( gcv_TexCoord.x*gcv_TexCoord.x + gcv_TexCoord.y*gcv_TexCoord.y ); // magnitude
-             const float dist = sqrt( gcv_TexCoord.y*gcv_TexCoord.y ); // magnitude
-             // const float a = 1.0 - smoothstep (gcv_TexCoord.y-gcv_TexCoord.z, gcv_TexCoord.y, dist);
-             const float r = gcv_TexCoord.x/3.0;
-             const float wa = gcv_TexCoord.x+r;
-             const float waHalf = wa/2.0;
-             const float a = 1.0 - smoothstep (waHalf-2.0*r, waHalf, dist);
+             // float dist = sqrt( gcv_TexCoord.x*gcv_TexCoord.x + gcv_TexCoord.y*gcv_TexCoord.y ); // magnitude
+             float dist = sqrt( gcv_TexCoord.y*gcv_TexCoord.y ); // magnitude
+             // float a = 1.0 - smoothstep (gcv_TexCoord.y-gcv_TexCoord.z, gcv_TexCoord.y, dist);
+             float r = gcv_TexCoord.x/3.0;
+             float wa = gcv_TexCoord.x+r;
+             float waHalf = wa/2.0;
+             float a = 1.0 - smoothstep (waHalf-2.0*r, waHalf, dist);
              color = vec3(0, 0, 1.0); // gcu_ColorStatic.rgb;
              alpha = a;
          #else