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2 question about texture coordinates

Hi. I have 2 questions:

  1. texture coordinate take as input only values from 0 to 1? TexCoord gradient is from 0 to 1 at R and G channel, so if i have gradient from 3 to 4 at both channels (3,01, 3,02…3,99) it has same results as gradient from 0 to 1.
    This means every coordinate input cuts whole numbers and leaves only floating numbers? (0,0001 to 0,9999?)

  2. i found that i can’t use texture coordinates for non square (512x1024) textures, this is intended?

  • EDIT: i found i can tile my textures, but one which i found in content examples i can’t, why?