[Dri-patches] [Bug #124147] UT gl_ztrick bug

[<no...@so...>]

Bug #124147, was updated on 2000-Dec-02 08:37
Here is a current snapshot of the bug.

Project: Direct Rendering Infrastructure
Category: ATI OpenGL
Status: Open
Resolution: None
Bug Group: Rendering Error
Priority: 5
Submitted by: brianp
Assigned to : Nobody
Summary: UT gl_ztrick bug

Details: UT avoids Z buffer clears with the following:

> if( ZTrickToggle )
> {
>         ZTrickToggle = 0;
>         glDepthRange( 0.0, 0.5 );
>         ZTrickFunc = GL_LEQUAL;
> }
> else
> {
>         ZTrickToggle = 1;
>         glDepthRange( 1.0, 0.5 );
>         ZTrickFunc = GL_GEQUAL;
> }
> glDepthFunc( (GLenum) ZTrickFunc );

It's reported that you need to set gl_ztrick = 0 to
get correct rendering.  We should check that glDepthFunc
GL_GEQUAL and glDepthRange work correctly.


For detailed info, follow this link:
http://sourceforge.net/bugs/?func=detailbug&bug_id=124147&group_id=387