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Z Order

Started by michiwalter Sep 5, 2000 at 1:27 PM 3 replies 600+ views

Original Post

Sep 5, 2000 at 1:27 PM

I''ve the following problem: If I render a red rectangle at z position 0 and after that a green one with z position -20, will I see the red or the green one? Thanks, Michael

Antknei

Sep 5, 2000 at 1:30 PM

If you are not doing any buffering, you will see the second triangle you draw, and any parts of the first that the second does not cover.

michiwalter

Author

michiwalter

Sep 5, 2000 at 1:32 PM

How can I avoid this?

How does buffering function?

Antknei

Sep 5, 2000 at 1:39 PM

What is your enviornment like? are you dealing with a moving camera or many moving objects? If it is a small scene you can preorder the polygons. If it is a massive scene with a moving camera you will most likely need to use a BSP ( check out mr-gamemaker.com ). If it is somewhere in between you can sort your polygons before drawing them. Your hardware may be able to support things like a w-buffer and a z-buffer which can relieve some of the ordering issues by keeping tracked of the "depth" of each pixel.

michiwalter

Author

michiwalter

Sep 5, 2000 at 2:23 PM

I wanna program a 3D Realtime Strategy Game.

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