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Clipping Issue

To: realbasic-games at lists dot realsoftware dot com
Subject: Clipping Issue
From: Craig Macomber <FishyRB at 98115 dot net>
Date: Tue, 5 Dec 2006 19:59:30 -0800
Delivered-to: listarchive at realsoftware dot com
Delivered-to: realbasic-games at lists dot realsoftware dot com
References: <20061130180035 dot 7694116C3D50 at lists dot realsoftware dot com>
I have many rendered objects that are close together, (HUD, world (Tunnel), and shadows) which are having clipping issues. I believe this is called Z fighting. My Shadows (even if I make then quite far apart, like almost 1% of my entire scene depth)

To improve this, I have tried increasing the hither, decreasing the yon, removing my furthest objects (making the scene 1/5 as deep), changing the texture sizes, and nothing helped other than simply turning off the alpha mask for the tunnel.

A picture can be found at http://img215.imageshack.us/img215/7946/clipbuguv6.jpg The tunnel seems to be the cause. When even one of the objects passes over one of the edges between the triangles it has the problem. If I turn the Alpha mask off on the tunnel the problem is fixed, but I don't want to do that.

I could just make the bottom of the tunnel different, and use no alpha (Most, but not all of the rendering issues occur on the bottom where the score and shadows are). If I cant find another solution I will do that.

I would appreciate any advice or any information. Thanks!
Craig

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