I can't really answer how the script works it magic. Step one is all about making sure you have a uniform resolution across all your UV shells, while step two seems to be about configuring Maya's UV Texture Editor grid to work with how Mari interprets UV tiles (as explained in step 4).
In Step 1 of the tutorial how do you figure out the correct pixel density ? When following the tutorial and creating a cube and setting the pixel per centimeter to 204 the cube shell shrinks, in that case the first step of the tutorial mentions that the pixel density was off and would need adjusting, how do you calculate…
It'd be really useful if you posted a link to the tutorial, the script and tell us what the software you're using is and which step of the tutorial you're having issues with.
I have a UV Tutorial using a script, I'm having a hard time understanding, at this point, two of the steps in the tutorial with regards to the script. I'm hoping someone can install the script and read the tutorial and help me make sense of it ?
I understand what you mean, but how does the script interpolate all this and what is meant by the explanations, especially the first two steps of the tutorial ? I must have tried this tutorial numerous times to get an understand without any success !
If you want help with an issue you need to post a lot more detail than you currently have. Why would anyone care about such a vague problem? You don't even say what software you're using, what the name of the script is, what the script does exactly, no link to the tutorial, no explanation of what the steps you find…
I don't know how to calculate the exact PPC, sorry. What is your specific need to know how to calculate it? Frankly, UV mapping doesn't need to be as complex as you are making it out to be. From what I can see of that tutorial, it does a terrible job explaining why you need to do the things it's telling you to do. Knowing…