Path: chuka.playstation.co.uk!news
From: "Nathan Miller" <millerbosnia@hotmail.com>
Newsgroups: scea.yaroze.programming.3d_graphics,scee.yaroze.programming.3d_graphics
Subject: 3d tiling and ripping
Date: Sun, 31 Jan 1999 01:40:38 +0200
Organization: PlayStation Net Yaroze (SCEE)
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Just had a question.  I am representing my world with an array like
world[20][20].  I have 3d models that represent a tile for the world, with
floor included.  The drawing function takes the array and a TILE_WIDTH and
TILE_HEIGHT variable and draws the terrain (that is the simplified version).
The only problem is, the floor tiles tear, causing black lines to appear
between the tiles.  The floor is flat right now.  Here is a simplified
version of the function.

TILE_WIDTH = 200
TILE_HEIGHT = 200

for(i=0;i<20;i++)
 for(j=0;j<20;j++)


   tempx = i*TILE_WIDTH;
   tempz = i*TILE_HEIGHT;
   DrawTile(world[i][j], tempx, tempy);
 }

That isn't exactly right, but you get the idea.  It looks good, except for
the edges of the tiles rip and cause random black lines all over the screen.
Any help?

Thanks,

Nathan Miller