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-rw-r--r--examples/OpenGLWindow/Shaders/linesVS.glsl2
1 files changed, 1 insertions, 1 deletions
diff --git a/examples/OpenGLWindow/Shaders/linesVS.glsl b/examples/OpenGLWindow/Shaders/linesVS.glsl
index f28363dac..335fac7bc 100644
--- a/examples/OpenGLWindow/Shaders/linesVS.glsl
+++ b/examples/OpenGLWindow/Shaders/linesVS.glsl
@@ -11,7 +11,7 @@ out vec4 colourV;
void main (void)
{
- colourV = colour;
+ colourV = (colour[3] == -1) ? colourIn : colour;
gl_Position = ProjectionMatrix * ModelViewMatrix * position;
}