mapu and mapv from render pick DAT

General TouchDesigner Discussion
1

Hello,

I’m stuck on a conceptual issue. How is it possible to get values above 1 from a render pick DAT’s mapu and mapv output?

If i am picking in SOP space: the SOP has UV coordinates applied. I should get a value that equates to the uv position on the TOP i used as a texture map…?

I searched the boards and found some similar questions but couldn’t wrap my head around what I’m missing here…

Thanks!

2

update:

so my issue is with tiled texturing using the texture SOP.

if i tile 2 times in the X, say, i thought i would get (as a range of mapu values) 0-1, then 0-1 again.

instead i get 0-2…

i think i have gotten my brain wrapped around the issue, but feel free to chime in!

g

3

Yes, texture repeating is done by extending the coordinates beyond 0-1, not by using 0-1 over and over again. In anything but a simple example the former is easier. E.g if you are mapping between two vertices that have 0.9 and 1.1 as their coordinates for example.