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import org.sunflow.*;
import org.sunflow.core.*;
import org.sunflow.core.camera.*;
import org.sunflow.core.primitive.*;
import org.sunflow.core.shader.*;
import org.sunflow.image.Color;
import org.sunflow.math.*;
// Change settings here
int depth = 5;
boolean preview = false;
public void build() {
parameter("eye", new Point3(2.0f, 2.0f, -5.0f));
parameter("target", new Point3(0, 0, 0));
parameter("up", new Vector3(0.0f, 1.0f, 0.0f));
parameter("fov", 45.0f);
parameter("aspect", 2.0f);
camera("camera_outside", "pinhole");
parameter("eye", new Point3(0, 0.2f, 0));
parameter("target", new Point3(-1.0f, -0.5f, 0.5f));
parameter("up", new Vector3(0.0f, 1.0f, 0.0f));
camera("camera_inside", "spherical");
parameter("maxdist", 0.4f);
parameter("samples", 16);
shader("ao_sponge", "ambient_occlusion");
parameter("maxdist", 0.4f);
parameter("samples", 128);
shader("ao_ground", "ambient_occlusion");
PluginRegistry.primitivePlugins.registerPlugin("menger_sponge", MengerSponge.class);
parameter("depth", depth);
geometry("sponge", "menger_sponge");
// Matrix4 m = null;
// m = Matrix4.rotateX((float) Math.PI / 3);
// m = m.multiply(Matrix4.rotateZ((float) Math.PI / 3));
// parameter("transform", m);
parameter("shaders", "ao_sponge");
instance("sponge.instance", "sponge");
parameter("center", new Point3(0, -1.25f, 0.0f));
parameter("normal", new Vector3(0.0f, 1.0f, 0.0f));
geometry("ground", "plane");
parameter("shaders", "ao_ground");
instance("ground.instance", "ground");
// rendering options
parameter("camera", "camera_inside");
// parameter("camera", "camera_outside");
parameter("resolutionX", 1024);
parameter("resolutionY", 512);
if (preview) {
parameter("aa.min", 0);
parameter("aa.max", 1);
parameter("bucket.order", "spiral");
} else {
parameter("aa.min", 1);
parameter("aa.max", 2);
parameter("bucket.order", "column");
parameter("filter", "mitchell");
}
options(DEFAULT_OPTIONS);
}
public static class MengerSponge extends CubeGrid {
private int depth;
public MengerSponge() {
depth = 3;
}
public boolean update(ParameterList pl, SunflowAPI api) {
depth = pl.getInt("depth", depth);
int n = 1;
for (int i = 0; i < depth; i++)
n *= 3;
pl.addInteger("resolutionX", n);
pl.addInteger("resolutionY", n);
pl.addInteger("resolutionZ", n);
return super.update(pl, api);
}
protected boolean inside(int x, int y, int z) {
for (int i = 0; i < depth; i++) {
if ((x % 3) == 1 ? (y % 3) == 1 || (z % 3) == 1 : (y % 3) == 1 && (z % 3) == 1) return false;
x /= 3;
y /= 3;
z /= 3;
}
return true;
}
}
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