examples: switch to GLSL 1.30 to support Intel graphicsHEADmaster

1 files changed, 7 insertions, 7 deletions

diff --git a/examples/symmetry.frag b/examples/symmetry.frag
index 26f4651..363c18a 100644
--- a/examples/symmetry.frag
+++ b/examples/symmetry.frag
@@ -1,4 +1,4 @@
-#version 330
+#version 130
 
 out vec4 fragColor;
 
@@ -56,13 +56,13 @@ void main(void) {
 	float k = param1;
 
 	for (int i = 0; i < n; i++) {
-		mat3 t = scale(0.3 + 0.02 * param2)
-		       * rot(-PI/2*(k*i/n + time/1500))
-		       * trans(0.5, 0.0)
-		       * rot(2*PI*i/n)
-		       * scale(1 / (1 + 0.03 * param2));
+		mat3 t = scale(1 + 0.03 * param2)
+		       * rot(-2*PI*i/n)
+		       * trans(-0.5, 0.0)
+		       * rot(PI/2*(k*i/n + time/1500))
+		       * scale(1 / (0.3 + 0.02 * param2));
 
-		float c = square(p * inverse(t));
+		float c = square(p * t);
 		scene = abs(scene - c);
 	}