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Making Waterfalls in WorldBuilder 4 - Page 3

While we're still in the Settings Properties panel, let's change Live Time from 40 to 80.

Reduce Visual Size from 5 to 0.5.

If you want to see your particle stream in your workspace viewports (and don't mind sitting through some redraw time), enable the Draw in Wireframe Mode check box.

Note: If you are planning (eventually, someday) to display your WorldBuilder scene in NTSC or 'D1' format, then set the FPS (Frames Per Second) parameter to 30. If you will be displaying in PAL format, use the default value of 25.

Later on, you’ll set Accuracy to a higher value. Don’t do this until you’ve fine-tuned your waterfall scene; higher Accuracy values make better Collision and Physics interactions but also extend render times.


Now let’s go to the Physics Properties panel.

Note that the Gravity value corresponds to the speed at which the water particles fall away from the emitter. Its default setting of 10 is probably sufficient for a large waterfall like ours (slower movement suggests more mass and larger scales), but you may want to adjust this value even further downwards.


Gravity can be adjusted numerically in the panel, or interactively by using the Manipulator and the waterfall’s vertical arrow (make sure the Draw check box is enabled).


In the Emitter Properties panel, set the Velocity to 7.5.

This setting should be adjusted in conjunction with the Gravity setting. Remember, the higher the value, the faster the particles will move.

Add a small ‘+/-‘ variation value of 2.5.
This will keep the particles from moving at
exactly the same rate, which in turn will enhance your scene’s realism.

Let's do a test render, to see how our settings are being applied to our scene.

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