Sha256: 77d661cf4618056890d1799defdf7deb0e9c8ea837eaabe12c9a7be33ecd388a
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Size: 1.23 KB
Versions: 6
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Stored size: 1.23 KB
Contents
package org.sunflow.core.camera;
import org.sunflow.SunflowAPI;
import org.sunflow.core.CameraLens;
import org.sunflow.core.ParameterList;
import org.sunflow.core.Ray;
public class PinholeLens implements CameraLens {
private float au, av;
private float aspect, fov;
private float shiftX, shiftY;
public PinholeLens() {
fov = 90;
aspect = 1;
shiftX = shiftY = 0;
update();
}
@Override
public boolean update(ParameterList pl, SunflowAPI api) {
// get parameters
fov = pl.getFloat("fov", fov);
aspect = pl.getFloat("aspect", aspect);
shiftX = pl.getFloat("shift.x", shiftX);
shiftY = pl.getFloat("shift.y", shiftY);
update();
return true;
}
private void update() {
au = (float) Math.tan(Math.toRadians(fov * 0.5f));
av = au / aspect;
}
@Override
public Ray getRay(float x, float y, int imageWidth, int imageHeight, double lensX, double lensY, double time) {
float du = shiftX - au + ((2.0f * au * x) / (imageWidth - 1.0f));
float dv = shiftY - av + ((2.0f * av * y) / (imageHeight - 1.0f));
return new Ray(0, 0, 0, du, dv, -1);
}
}
Version data entries
6 entries across 6 versions & 1 rubygems