I am trying to discover the relationship between the Transformation coordinates within, say, a perlin noise node and the overall world size.
For example, I have a world scaled to 73.05 km of which I would like to make multiple tiles (that is to say, make multiple tiles so that my final world will be made of multiple 73.05 square tiles).
If I want to move my world over by 73.05 km (so as to look at the next “tile”) I would expect that I would use a value of either: 1, 2, 100, or 73.05. Well, those were my guesses anyway. Turns out, at this scale, the real number is somewhere around 9.5.
How is this number calculated? It seems to change with world scale changes.
The coordinates in the transform box represent your world space coordinates. These are equivelent to the coordinates you find the World Size dialog box for Global Location, and also for coordinates displayed in Explorer mode.
For those devices that interpret world space distances as real world units (kilometers), there are 7.68km in a world space unit. This relationship is more or less arbitrary, but it follows historically from assuming a 30m point spacing and 256 points per world unit in the very first versions of world machine.
Future versions of WM are unifying these coordinates more so that everything is displayed consistently ie coordinates and sizes are given in world space units, not a mix of world space and kilometers.
The world size slider scales nonlinearly to accommodate the very large range of world sizes that people might want to create. (It will go up in small increments near the left (smaller) side of the slider, while it will go up by larger chunks on the right side).
By the way, I really dig this app. Thanks. (Love an OSX version but I understand the financial barriers to that - I just bought a used pc to run it at home which means you will have sold yet another license soon )
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