mipmap

when does the game use the different mip levels?
and how can you force it to use level 1?

by modiying f1graphcis.cfg



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There is also LOD settings exists in the exe file and can force graphic engine to use maximum lod and vice versa, where affect to mipmap.


Gr88ts,
Madman

As Far As I Know

Mipmap, is what in GP4Master is called Texture 0 -> 3, if you set it to 1 it will always use the 512x512 texture (or higher if you use hi-res textures) and it wont switch to lower-res when the car goes far...however..mipmap has nothing to do with the lod's


- Sander



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The *.tex file in gp4 almost contains 4 different DDS format, which used for different detail levels. This is causing LOD and mipmap has close relationships in GP4.

if you set it to 1 it will always use the 512x512 texture (or higher if you use hi-res textures) and it wont switch to lower-res when the car goes far

This is contradictive with basic principal of DirectX engine. Every single texture on-loaded (non-DDS format with stock mipmaps), will be self-created as 9-level mipmaps to video memory. That's why we need bilinear/trilinear filtering to create smooth mipmap texture for different depth-buffer level (also commonly called z-buffer).

On GP4, LODs are has ranged 0 to 1 as default. And because most textures has 4 different detail detail, this range has splitted into 4 regions. If all of these regions are set to near zero, you'll get a lowest LOD setting and lowest texture quality (in Ferrari car, all body will shown just red color without ads and other things).


Gr88ts,
Madman

i use 1024 sharp textures but ingame they are not sharp.
i can only assume its using one of the downsamples.
so how do i stop it doing that.

also: as some cars have the same lod.gp4 copied 5 times, is it possible to just use the one gp4 file. it would make the wad alot smaller but not sure if it would have any effect.

and: is it possible to have: _car3_lod_ for instance?

thanks



____
Tony