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-rw-r--r--src/jogl/classes/jogamp/graph/curve/opengl/shader/varyings.glsl4
1 files changed, 4 insertions, 0 deletions
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 2054c9c21..265ab6915 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/shader/varyings.glsl
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/shader/varyings.glsl
@@ -6,6 +6,10 @@ varying vec3 gcv_CurveParam;
varying vec2 gcv_FboTexCoord;
+#ifdef USE_COLOR_TEXTURE
+ varying vec2 gcv_ColorTexCoord;
+#endif
+
#ifdef USE_COLOR_CHANNEL
varying vec4 gcv_Color;
#endif