Hi all !
I am toying with doing a canyon based on several principles but mostly from the recent post by Geek At Play and having some difficulty in applying the displacement that I want appropriately.
If I set myself in the canyon, I want to displace in one direction on one side and the other on the other side.
I have figured out how to apply it on one side by using the X positive normal masking while I am looking towards 0 degrees.
That works and I applied it not completely to the top by inserting a Distribution shader......all well till then !
Then I wanted to open up the top of the canyon by inserting a negative X shear for the upper portions.....and it did but a very finite thickness at the very top did not follow and creates an artifact that can be seen in the picture included.
The same happens with negative lateral displacement !
It is as if a very thin shaving does not follow and according to the distribution shader, there should be no reason for it not being included.
I have included the file and image if any of you feel to examine this and see whether there is a way to fix this !
I appreciate your help and input as always !
Paul