Replace pow() with multiplikation to improve speed

diff --git a/src/mapgen.cpp b/src/mapgen.cpp
index 67e92f4498bca02d0f458a64cb818e7b498fa760..77b133020d7a094f64f87037c523e950687045a2 100644 (file)
--- a/src/mapgen.cpp
+++ b/src/mapgen.cpp
@@ -1228,7 +1228,7 @@ double base_rock_level_2d(u64 seed, v2s16 p)
                        0.5+(float)p.X/125., 0.5+(float)p.Y/125.,
                        seed-932, 5, 0.7);
        b = rangelim(b, 0.0, 1000.0);
-       b = pow(b, 7);
+       b = b*b*b*b*b*b*b;
        b *= 5;
        b = rangelim(b, 0.5, 1000.0);
        // Values 1.5...100 give quite horrible looking slopes

diff --git a/src/noise.cpp b/src/noise.cpp
index 4a7fc87e7a36651de11bc5af90b8e99b618c3dd9..e75fbf4bd27e688b1499ad95f61c4fc903e75b47 100644 (file)
--- a/src/noise.cpp
+++ b/src/noise.cpp
@@ -37,7 +37,7 @@ double dotProduct(double vx, double vy, double wx, double wy){
 }
  
 double easeCurve(double t){
-    return 6*pow(t,5)-15*pow(t,4)+10*pow(t,3);
+    return t * t * t * (6. * t * t - 15. * t + 10.);
 }
  
 double linearInterpolation(double x0, double x1, double t){