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authorSven Gothel <[email protected]>2013-05-17 07:55:59 +0200
committerSven Gothel <[email protected]>2013-05-17 07:55:59 +0200
commitb2802021acf8aa9b363ebef383c8dc8c8079ffa4 (patch)
tree7a9ba6c7b951e6eaf5fe7f91c5ef00ad9b357279 /src/jogl/classes/jogamp/graph/curve
parent33abeb8097a8f80acd1a4ce94b4866e5dc41f0c0 (diff)
Fix Bug 711: Align Graphs's Curve Shader programmatically to used GL/GLSL version, following all other internal GLSL usage utilizing ShaderCode.
Diffstat (limited to 'src/jogl/classes/jogamp/graph/curve')
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java29
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/TextRendererImpl01.java20
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/attributes.glsl4
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass-weight.fp (renamed from src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02a-xxx.fp)8
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass.fp (renamed from src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01a-xxx.fp)8
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass-weight.fp (renamed from src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02b-xxx.fp)15
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass.fp (renamed from src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01b-xxx.fp)15
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-es2-merged.vp19
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-es2.vp9
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-gl2.vp6
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01.vp (renamed from src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-xxx.vp)0
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01a-es2-merged.fp52
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01a-es2.fp13
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01a-gl2.fp6
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01b-es2.fp14
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01b-gl2.fp6
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02a-es2.fp14
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02a-gl2.fp6
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02b-es2.fp14
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02b-gl2.fp6
-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/varyings.glsl4
21 files changed, 75 insertions, 193 deletions
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java b/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java
index 2884aca2f..7f5afcd02 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java
@@ -46,22 +46,25 @@ public class RegionRendererImpl01 extends RegionRenderer {
}
- @Override
- protected String getFragmentShaderName(GL2ES2 gl) {
- final String type = Region.isNonUniformWeight(renderModes) ? "02" : "01" ;
- final String pass = Region.isVBAA(renderModes) ? "b" : "a" ;
- return "curverenderer" + type + pass + getShaderGLVersionSuffix(gl);
- }
-
protected boolean initShaderProgram(GL2ES2 gl) {
final ShaderState st = rs.getShaderState();
- ShaderCode rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, RegionRendererImpl01.class, "shader",
- "shader/bin", getVertexShaderName(gl), false);
- ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, RegionRendererImpl01.class, "shader",
- "shader/bin", getFragmentShaderName(gl), false);
-
- ShaderProgram sp = new ShaderProgram();
+ final ShaderCode rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, RegionRendererImpl01.class, "shader",
+ "shader/bin", getVertexShaderName(), true);
+ final ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, RegionRendererImpl01.class, "shader",
+ "shader/bin", getFragmentShaderName(), true);
+ rsVp.defaultShaderCustomization(gl, true, true);
+ // rsFp.defaultShaderCustomization(gl, true, true);
+ int pos = rsFp.addGLSLVersion(gl);
+ if( gl.isGLES2() ) {
+ pos = rsFp.insertShaderSource(0, pos, ShaderCode.extOESDerivativesEnable);
+ }
+ final String rsFpDefPrecision = getFragmentShaderPrecision(gl);
+ if( null != rsFpDefPrecision ) {
+ rsFp.insertShaderSource(0, pos, rsFpDefPrecision);
+ }
+
+ final ShaderProgram sp = new ShaderProgram();
sp.add(rsVp);
sp.add(rsFp);
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/TextRendererImpl01.java b/src/jogl/classes/jogamp/graph/curve/opengl/TextRendererImpl01.java
index 0cf424cd2..81c421371 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/TextRendererImpl01.java
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/TextRendererImpl01.java
@@ -49,12 +49,22 @@ public class TextRendererImpl01 extends TextRenderer {
protected boolean initShaderProgram(GL2ES2 gl){
final ShaderState st = rs.getShaderState();
- ShaderCode rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, TextRendererImpl01.class, "shader",
- "shader/bin", getVertexShaderName(gl), false);
- ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, TextRendererImpl01.class, "shader",
- "shader/bin", getFragmentShaderName(gl), false);
+ final ShaderCode rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, TextRendererImpl01.class, "shader",
+ "shader/bin", getVertexShaderName(), true);
+ final ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, TextRendererImpl01.class, "shader",
+ "shader/bin", getFragmentShaderName(), true);
+ rsVp.defaultShaderCustomization(gl, true, true);
+ // rsFp.defaultShaderCustomization(gl, true, true);
+ int pos = rsFp.addGLSLVersion(gl);
+ if( gl.isGLES2() ) {
+ pos = rsFp.insertShaderSource(0, pos, ShaderCode.extOESDerivativesEnable);
+ }
+ final String rsFpDefPrecision = getFragmentShaderPrecision(gl);
+ if( null != rsFpDefPrecision ) {
+ rsFp.insertShaderSource(0, pos, rsFpDefPrecision);
+ }
- ShaderProgram sp = new ShaderProgram();
+ final ShaderProgram sp = new ShaderProgram();
sp.add(rsVp);
sp.add(rsFp);
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/attributes.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/attributes.glsl
index 108247c9c..ced118c1c 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/attributes.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/attributes.glsl
@@ -2,6 +2,10 @@
#ifndef attributes_glsl
#define attributes_glsl
+#if __VERSION__ >= 130
+ #define attribute in
+#endif
+
// attribute vec3 gca_Vertices;
attribute vec4 gca_Vertices;
attribute vec2 gca_TexCoords;
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02a-xxx.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass-weight.fp
index d31bafb5a..ca03e605c 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02a-xxx.fp
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass-weight.fp
@@ -4,6 +4,12 @@
// 1-pass shader w/ weight
//
+#if __VERSION__ >= 130
+ out vec4 mgl_FragColor;
+#else
+ #define mgl_FragColor gl_FragColor
+#endif
+
#include uniforms.glsl
#include varyings.glsl
@@ -44,5 +50,5 @@ void main (void)
}
}
- gl_FragColor = vec4(c, alpha);
+ mgl_FragColor = vec4(c, alpha);
}
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01a-xxx.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass.fp
index f3a88adef..b978b62d1 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01a-xxx.fp
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-1pass.fp
@@ -4,6 +4,12 @@
// 1-pass shader w/o weight
//
+#if __VERSION__ >= 130
+ out vec4 mgl_FragColor;
+#else
+ #define mgl_FragColor gl_FragColor
+#endif
+
#include uniforms.glsl
#include varyings.glsl
@@ -38,5 +44,5 @@ void main (void)
}
}
- gl_FragColor = vec4(c, alpha);
+ mgl_FragColor = vec4(c, alpha);
}
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02b-xxx.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass-weight.fp
index be738498c..9440f314c 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02b-xxx.fp
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass-weight.fp
@@ -4,6 +4,12 @@
// 2-pass shader w/ weight
//
+#if __VERSION__ >= 130
+ out vec4 mgl_FragColor;
+#else
+ #define mgl_FragColor gl_FragColor
+#endif
+
#include uniforms.glsl
#include varyings.glsl
@@ -48,10 +54,11 @@ void main (void)
t += texture2D(gcu_TextureUnit, rtex + 4.0*size*(vec2(0, 1)))*tex_weights.w;
t += texture2D(gcu_TextureUnit, rtex - 4.0*size*(vec2(0, 1)))*tex_weights.w;
- /** discard freezes NV tegra2 compiler
+ #if 0
if(t.w == 0.0) {
- discard;
- } */
+ discard; // discard freezes NV tegra2 compiler
+ }
+ #endif
c = t.xyz;
alpha = gcu_Alpha * t.w;
@@ -84,5 +91,5 @@ void main (void)
}
}
- gl_FragColor = vec4(c, alpha);
+ mgl_FragColor = vec4(c, alpha);
}
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01b-xxx.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass.fp
index 879e41e4c..0d878f2e4 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01b-xxx.fp
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-2pass.fp
@@ -4,6 +4,12 @@
// 2-pass shader w/o weight
//
+#if __VERSION__ >= 130
+ out vec4 mgl_FragColor;
+#else
+ #define mgl_FragColor gl_FragColor
+#endif
+
#include uniforms.glsl
#include varyings.glsl
@@ -49,10 +55,11 @@ void main (void)
t += texture2D(gcu_TextureUnit, rtex + 4.0*size*(vec2(0, 1)))*tex_weights.w;
t += texture2D(gcu_TextureUnit, rtex - 4.0*size*(vec2(0, 1)))*tex_weights.w;
- /** discard freezes NV tegra2 compiler
+ #if 0
if(t.w == 0.0){
- discard;
- } */
+ discard; // discard freezes NV tegra2 compiler
+ }
+ #endif
c = t.xyz;
alpha = gcu_Alpha * t.w;
@@ -78,5 +85,5 @@ void main (void)
}
}
- gl_FragColor = vec4(c, alpha);
+ mgl_FragColor = vec4(c, alpha);
}
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-es2-merged.vp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-es2-merged.vp
deleted file mode 100644
index 8fb985d69..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-es2-merged.vp
+++ /dev/null
@@ -1,19 +0,0 @@
-//Copyright 2010 JogAmp Community. All rights reserved.
-
-#ifdef GL_ES
- precision highp float;
- precision highp int;
-#endif
-
-uniform mat4 gcu_PMVMatrix[3]; // P, Mv, and Mvi
-varying vec2 gcv_TexCoord;
-
-attribute vec4 gca_Vertices;
-attribute vec2 gca_TexCoords;
-
-
-void main(void)
-{
- gl_Position = gcu_PMVMatrix[0] * gcu_PMVMatrix[1] * gca_Vertices;
- gcv_TexCoord = gca_TexCoords;
-}
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-es2.vp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-es2.vp
deleted file mode 100644
index a5dc158ad..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-es2.vp
+++ /dev/null
@@ -1,9 +0,0 @@
-//Copyright 2010 JogAmp Community. All rights reserved.
-
-#version 100
-
-precision highp float;
-precision highp int;
-
-#include curverenderer01-xxx.vp
-
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-gl2.vp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-gl2.vp
deleted file mode 100644
index 1ac33e8b3..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-gl2.vp
+++ /dev/null
@@ -1,6 +0,0 @@
-//Copyright 2010 JogAmp Community. All rights reserved.
-
-#version 110
-
-#include curverenderer01-xxx.vp
-
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-xxx.vp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01.vp
index 64a6835ec..64a6835ec 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01-xxx.vp
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01.vp
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01a-es2-merged.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01a-es2-merged.fp
deleted file mode 100644
index a57d8fc62..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01a-es2-merged.fp
+++ /dev/null
@@ -1,52 +0,0 @@
-//Copyright 2010 JogAmp Community. All rights reserved.
-
-#ifdef GL_ES
- precision mediump float;
- precision mediump int;
-#endif
-
-uniform mat4 gcu_PMVMatrix[3]; // P, Mv, and Mvi
-uniform vec3 gcu_ColorStatic;
-uniform float gcu_Alpha;
-
-varying vec2 gcv_TexCoord;
-
-const vec3 b_color = vec3(1.0, 1.0, 1.0);
-
-void main (void)
-{
- vec2 rtex = vec2(abs(gcv_TexCoord.x),abs(gcv_TexCoord.y));
- vec3 c = gcu_ColorStatic;
-
- float alpha = 0.0;
-
- if((gcv_TexCoord.x == 0.0) && (gcv_TexCoord.y == 0.0)) {
- alpha = gcu_Alpha;
- }
- else if ((gcv_TexCoord.x > 0.0) && (rtex.y > 0.0 || rtex.x == 1.0)) {
- vec2 dtx = dFdx(rtex);
- vec2 dty = dFdy(rtex);
-
- rtex.y -= 0.1;
-
- if(rtex.y < 0.0) {
- rtex.y = 0.0;
- }
-
- vec2 f = vec2((dtx.y - dtx.x + 2.0*rtex.x*dtx.x), (dty.y - dty.x + 2.0*rtex.x*dty.x));
- float position = rtex.y - (rtex.x * (1.0 - rtex.x));
- float d = position/(length(f));
-
- float a = (0.5 - d * sign(gcv_TexCoord.y));
-
- if (a >= 1.0) {
- alpha = gcu_Alpha;
- } else if (a <= 0.0) {
- alpha=0.0;
- } else {
- alpha = gcu_Alpha * a;
- }
- }
-
- gl_FragColor = vec4(c, alpha);
-}
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01a-es2.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01a-es2.fp
deleted file mode 100644
index e693891a6..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01a-es2.fp
+++ /dev/null
@@ -1,13 +0,0 @@
-//Copyright 2010 JogAmp Community. All rights reserved.
-
-#version 100
-
-// we require dFdx/dFdy
-// #extension OES_standard_derivatives : require
-#extension GL_OES_standard_derivatives : enable
-
-precision mediump float;
-precision mediump int;
-
-#include curverenderer01a-xxx.fp
-
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01a-gl2.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01a-gl2.fp
deleted file mode 100644
index d187fea24..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01a-gl2.fp
+++ /dev/null
@@ -1,6 +0,0 @@
-//Copyright 2010 JogAmp Community. All rights reserved.
-
-#version 110
-
-#include curverenderer01a-xxx.fp
-
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01b-es2.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01b-es2.fp
deleted file mode 100644
index d4748722d..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01b-es2.fp
+++ /dev/null
@@ -1,14 +0,0 @@
-//Copyright 2010 JogAmp Community. All rights reserved.
-
-#version 100
-
-// we require dFdx/dFdy
-// #extension OES_standard_derivatives : require
-#extension GL_OES_standard_derivatives : enable
-
-precision mediump float;
-precision mediump int;
-precision mediump sampler2D; // default is lowp
-
-#include curverenderer01b-xxx.fp
-
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01b-gl2.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01b-gl2.fp
deleted file mode 100644
index 01e08ff30..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer01b-gl2.fp
+++ /dev/null
@@ -1,6 +0,0 @@
-//Copyright 2010 JogAmp Community. All rights reserved.
-
-#version 110
-
-#include curverenderer01b-xxx.fp
-
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02a-es2.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02a-es2.fp
deleted file mode 100644
index 240a6c30f..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02a-es2.fp
+++ /dev/null
@@ -1,14 +0,0 @@
-//Copyright 2010 JogAmp Community. All rights reserved.
-
-#version 100
-
-// we require dFdx/dFdy
-// #extension OES_standard_derivatives : require
-#extension GL_OES_standard_derivatives : enable
-
-precision mediump float;
-precision mediump int;
-precision mediump sampler2D; // default is lowp
-
-#include curverenderer02a-xxx.fp
-
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02a-gl2.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02a-gl2.fp
deleted file mode 100644
index 01715daa5..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02a-gl2.fp
+++ /dev/null
@@ -1,6 +0,0 @@
-//Copyright 2010 JogAmp Community. All rights reserved.
-
-#version 110
-
-#include curverenderer02a-xxx.fp
-
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02b-es2.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02b-es2.fp
deleted file mode 100644
index 884e75674..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02b-es2.fp
+++ /dev/null
@@ -1,14 +0,0 @@
-//Copyright 2010 JogAmp Community. All rights reserved.
-
-#version 100
-
-// we require dFdx/dFdy
-// #extension OES_standard_derivatives : require
-#extension GL_OES_standard_derivatives : enable
-
-precision mediump float;
-precision mediump int;
-precision mediump sampler2D; // default is lowp
-
-#include curverenderer02b-xxx.fp
-
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02b-gl2.fp b/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02b-gl2.fp
deleted file mode 100644
index b1cc72188..000000000
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/curverenderer02b-gl2.fp
+++ /dev/null
@@ -1,6 +0,0 @@
-//Copyright 2010 JogAmp Community. All rights reserved.
-
-#version 110
-
-#include curverenderer02b-xxx.fp
-
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/shader/varyings.glsl b/src/jogl/classes/jogamp/graph/curve/opengl/shader/varyings.glsl
index 7a9bc5a07..3b9a3b727 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/varyings.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/varyings.glsl
@@ -2,6 +2,10 @@
#ifndef varyings_glsl
#define varyings_glsl
+#if __VERSION__ >= 130
+ #define varying out
+#endif
+
//varying vec4 gcv_FrontColor;
varying vec2 gcv_TexCoord;