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PART 5 - CLIPPING

The main point I will be covering in this tutorial will be how to do 2 point clipping but I will also be covering a lighting technique that you might well be wondering about...

CLIPPING?

You may have been wondering how it is possible to make 'odd' shaped brushes.  You know the sort...  Wedges...  Curve effects...

That sort of thing...  Well now I will try to explain how to do this, because it's really very simple.  What you have to do first is make a brush bigger than the shape you want, because clipping is almost like planing a piece of wood.  Imagine you have a block of wood and you want to turn it into a wedge shape.  You angle the plane across the piece of wood and remove the wood you don't need to leave the shape you want.  This is essentially what clipping is.

You start off with a normal block shaped brush, and remove the parts of the brush that you don't want.

As an example make a brush of dimensions 192x192x192.   Don't worry about making it into a map because to explain clipping you only need to look at the editor.  Now suppose you want to make this brush into a wedge.  This is what you must do.  With the shape you want to clip selected go to the selection menu and choose clipper then click toggle clipper.  Now mark one point in one corner and another point in the opposite corner.  A line will be drawn between them.   The line will be drawn around the part of the shape that will be removed.  If this shows that the wrong part of the shape will be clipped then in the clipper menu all you have to do is choose flip clip orientation.  When you are satisfied the right part will be clipped in the clipper menu choose clip selection.  This will remove the part of the brush you chose to clip.  You can do this any number of times to make the brush the shape you want.  With clipping it is even possible to create a curved effect if you keep clipping the corners of your brush.

Image2.jpg (48387 bytes)

However do remember that the more you clip, the more faces a brush has.  The more faces it has the slower it will make your map run when it is being rendered onscreen in the game.  

JUNIOR...

This is that lighting effect that I mentioned.   You may have wondered why in your maps the weapon in your hand and other players appear blacked out, as though there is no light.  This is because you have to use the junior entity!  A junior entity is a light source just like any other, except for it lights the player, your enemies and items.  Place a junior near all your light sources and press K to make the colour in line with the colour of lighting you want to use. 

Just the same as a normal light source when you press N you can use the light key to modify how bright the entity is.    

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This page was last updated on Wednesday, September 15, 1999 at 02:42AM EDT.