Memory leak strategies?

14

I can reproduce the leak in the Terrain demo as well. I add a viewport and remove its items, then in the TViewmain.Start I set:

  Viewport1 := DesignedComponent('Viewport1') as TCastleViewport;
  Viewport2 := DesignedComponent('Viewport2') as TCastleViewport;
  Viewport2.Items := Viewport1.Items;
  Viewport2.Camera := Viewport1.Camera;

The rate the memory is consumed appears to be based on the size of the viewport2. So this one is pretty big so memory is going fast.
(32bit, win10)

image
image1294×1133 135 KB

image
image1920×1229 185 KB

Here it has eaten 170mb doubling memory usage in just a few minutes. (0.6mb/second)
image
image1167×382 23.5 KB

Here is the whole folder minus exe.
terrain.zip (11.7 MB)

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