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Jon Parker avatar image
Jon Parker asked ·

broken henyey greenstein mixing in OSL

The following shader doesn't work as expected in Arnold 5. There should be both a strong forward and strong backscatter effect, but only the last shader's phase value (g) is used:

volume sample_volume_shader ( output closure color result = 0 )

{

closure color a = volume_henyey_greenstein(0, 1, 0, -0.8);

closure color a = volume_henyey_greenstein(0, 1, 0, 0.8);

result = a + b;

}

shadersvolumetricsosl
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