If you wanna use the reactor i can look at my max bible and tell you! but i am still waiting for my game title to render bloody thing been rendering for 18 hours about 2 hours remaining lol
anyway!
create a new file in max crate a box in the top view, first box key in these's numbers L 1020.W 1037.267 H 334.04 clone that box and move it inside the first box with the second box showing through the top
box 2 L 918.875 W 923. H 334.04 choose the first box boolean it compound objects boolean once thats done your box should kind of look like a small padling pool for children. choose spacewarp(s) reactor put the water inside the pool.
size X 896.649 and size Y 916.428. bring the water up in the front view so it's above the top of the pool. put 3 spheres select the left sphere and open Property editor with the reactior set the mass to value of 3kg with the midde sphere set that mass to 100kg. and the final sphere mass to 50000kg
check your animators in the preview windowselect reactor peview animation press the p key to play your animation.
record the animation key with the reactor create animation menu command
Select create plane L 883.463 W 929.614 put that plane inside your box and move it up in the front view so it the same as the water. so the water and plane are (is) the same size. then click bind the plane to the water.
open the mat editor and create a blue color swap like a kind of water effect with opacity val is at 20 and spec is at 75 asign this mat to the plane oppps add a ridage body in front RB collection properity click add button all the spheres and box.
end of tutorial
preview window only notice how the mass value determines wheether the spheres float or sink.
| 
