Re: [Mesa3d-dev] s_texture.c

[Daniel V. <vo...@lo...>]

On Thu, Dec 14, 2000 at 12:49:45PM -0700, Brian Paul wrote:
> 
> I should rename _P to _q (which is what the 1.2 spec uses now).  q is the
> highest-numbered mipmap level that can actually be used, after taking in
> account the image sizes and the value of GL_TEXTURE_MAX_LEVEL.
> 
> _M is the max usable lambda value.  It should be = _MaxLevel - BaseLevel.
> If you're looking at equation 3.21 in the 1.2 spec, then _M = q - b.  I
> should probably rename that variable too (_MaxLambda).
> 
> The incoming lambda value is added to BaseLevel to select a mipmap level.
> 
> The idea is that lambda=0 will correspond to the BaseLevel texture
> and lambda = _M will correspond to the GL_MAX_LEVEL texture.

Thanks.

> I'm not sure why you're seeing blurry images.  I haven't tried running
> UT with 3.5 yet.

Most noticeable with the floor textures in DM-Stalwart.



                            Daniel Vogel, Programmer, Loki Software Inc.