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package org.sunflow.core.shader;
import org.sunflow.SunflowAPI;
import org.sunflow.core.LightSample;
import org.sunflow.core.ParameterList;
import org.sunflow.core.Shader;
import org.sunflow.core.ShadingState;
import org.sunflow.image.Color;
public class ViewCausticsShader implements Shader {
public boolean update(ParameterList pl, SunflowAPI api) {
return true;
}
public Color getRadiance(ShadingState state) {
state.faceforward();
state.initCausticSamples();
// integrate a diffuse function
Color lr = Color.black();
for (LightSample sample : state)
lr.madd(sample.dot(state.getNormal()), sample.getDiffuseRadiance());
return lr.mul(1.0f / (float) Math.PI);
}
public void scatterPhoton(ShadingState state, Color power) {
}
// EP : Added transparency management
public boolean isOpaque() {
return true;
}
public Color getOpacity(ShadingState state) {
return null;
}
// EP : End of modification
}
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