Amounts of alias during visualization in post-processing occur due to the special topology of hexahedral grid based on the finite difference method. Based on pre-processing the calculated data

through chamfering surface grids and extracting the smooth contour

represented by triangle primitive

of surface grid to render the contour

the high quality graphs with spars alias or no alias can be obtained

having solved the alias problems during visualization in solidification simulation. Results show that accurate

real-time and realistic visualization effects can be realized by the method.