Sha256: c85a858d0088caa2c7cc404bceaf5b64efbb22c37df6fa454d8a3b16c83b3df0
Contents?: true
Size: 610 Bytes
Versions: 6
Compression:
Stored size: 610 Bytes
Contents
package org.sunflow.core.filter;
import org.sunflow.core.Filter;
public class CatmullRomFilter implements Filter {
@Override
public float getSize() {
return 4.0f;
}
@Override
public float get(float x, float y) {
return catrom1d(x) * catrom1d(y);
}
private float catrom1d(float x) {
x = Math.abs(x);
float x2 = x * x;
float x3 = x * x2;
if (x >= 2) {
return 0;
}
if (x < 1) {
return 3 * x3 - 5 * x2 + 2;
}
return -x3 + 5 * x2 - 8 * x + 4;
}
}
Version data entries
6 entries across 6 versions & 1 rubygems