From fa42efcf915ffd3ac2603c40e75e0842be5d4b83 Mon Sep 17 00:00:00 2001
From: ehofman <ehofman>
Date: Fri, 27 Jun 2003 21:36:05 +0000
Subject: [PATCH] Do some math omtimizations as pointed out by Norman

---
 simgear/scene/sky/oursun.cxx | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/simgear/scene/sky/oursun.cxx b/simgear/scene/sky/oursun.cxx
index fcb728d7..03d2a251 100644
--- a/simgear/scene/sky/oursun.cxx
+++ b/simgear/scene/sky/oursun.cxx
@@ -349,9 +349,10 @@ bool SGSun::repaint( double sun_angle ) {
         sun_factor = sun_factor/2 + 0.5;
 
         sgVec4 color;
-        color[0] = pow(sun_factor, 0.25);
-        color[1] = pow(sun_factor, 0.50);
-        color[2] = pow(sun_factor, 4.0);
+        color[1] = sqrt(sun_factor);
+        color[0] = sqrt(color[1]);
+        color[2] = sun_factor * sun_factor;
+        color[2] *= color[2];
         color[3] = 1.0;
 
         gamma_correct_rgb( color );
-- 
2.39.5