Could you possibly explain the process you are using to try and generate and render populations.
It's a fairly straight forward process.
Select the objects tab at the top of the screen.
Click Add Object
Select Population.
The Flyout menu gives a number of choices. There are internal objects, (Disc, Grass Clump...etc...) and external objects that can be imported (LWO, OBJ and TGO)
To get something going easily.. select Grass Clump
The Population property pane is displayed at lower left.
Click the "preview instances" button then click Populate now.
The population is represented in the 3d preview as a group of white rectangular shapes.
If the position of the population is at the same point as your heightfield, Click the Terrain tab in the population properties pane and ensure that sit on terrain is checked.
That's the basics.. hit render to see the result....Don't forget that the default camera position is 1 Km off the ground.. you may need to lower it to get a better idea of what the population actually looks like....
Go to the render tab, set your render options and then click render image - wait till done !
Hope this helps a bit..
Rgds
Chris
