Anyone have a handle on how to get the equivalent of volumemin() and volumemax() in DOPs? Really I'm just after a method to fit a curvature field -1 to 1 but the only way I can see to do this is with a Gas Field VOP that reads in the min and max values. Easy to do in SOPs, not very transparent in DOPs.

I was thinking that the colon shizzle might work for this but i can't remember the syntax. something like volumemin(dopobject/curvature:.somethingsomething). it escapes me.

Any helpy helpertons?

You can use the Gas Reduce DOP to calculate the min or max of a field and store it another field (and constant fields use very little storage). Then use the min and max fields as parameters to your GAS Field VOP.

Thank you very much Johner.

That is radical knowledge Holmes! Thanks

I am trying out Johner's technique but I do something wrong.

I made a scalar field called maxfield that gets the maximum temperature with a gasreduce dop. That step works as you can see with the visualization of that field (the plane; it changes color during sim).

Then in a gasfieldvop I try to refit that field into another myfield. That step does only work for one frame.

What am I doing wrong?

In the picture below:

red = myfield
white = temperature field
plane = maxfield

I'd be happy if somebody could nudge me in the right direction with this too!

Hip file attached.