misaligned vertices

Hi,

I tried to move vertices of Grid Sop with Noise Top and Phong GLSL Mat.
However, the outermost vertex of the Grid SOP will be misaligned.
Do you have ideas to fix this problem?

The file is below.
drive.google.com/file/d/1BQCdzn … sp=sharing

Here’s the fix -
youtu.be/-H0tSrxjSZU?t=429

HI, TimFranklin

Thank you very much!
That’s perfect! :smiley: