Fixed SSAO on intel.

deveee · deveee · commit 2dbffbe7fdb2 · 2016-05-25T23:17:39.000+02:00
In ssao.frag we are computing theta valaue and it looks that intel driver doesn't like too big values for sinus and cosinus computations.

I just used modulo 360 to store lower angle values in theta variable.
diff --git a/data/shaders/ssao.frag b/data/shaders/ssao.frag
@@ -40,7 +40,7 @@ void main(void)
     float bl = 0.0;
     float m = log2(r) + 6 + log2(invSamples);
 
-    float theta = 2. * 3.14 * tau * .5 * invSamples + phi;
+    float theta = mod(2. * 3.14 * tau * .5 * invSamples + phi, 360.);
     vec2 rotations = vec2(cos(theta), sin(theta)) * screen;
     vec2 offset = vec2(cos(invSamples), sin(invSamples));
 
