Color Compositing

• 
• $C_i=c_i+(1-o_i)C_{i-1}$
• where
• $c_i=o_i{c}_i^{\prime }$
• 
• First is same as Marching Cubes

f(\sigma)& $\exists t\in [0,T],s(t)=\sigma$ \

I_{o}&otherwise

\end{cases*}$$

• Higher pixel accurate quality