[Bf-committers] Re: parallaxmap error

[Nick Winters]

On Fri, 17 Dec 2004 23:30:20 +0100, Arne Schmitz
<arne.schmitz at mmweg.rwth-aachen.de> wrote:
> Am Freitag, 17. Dezember 2004 22:36 schrieb Martin Poirier:
> > Except that normal map would probably be more accurate
> > since you don't have to derivate the new normal from
> > the height map, it's directly given to you.
> 
> On the contrary -- normal maps will almost always be 8 bit only, so there is a
> quantisation error introduced into the normals. The normals computed from a
> bump map are at least as accurate, since they also will be bilinearly
> interpolated.
> 
using the correct tools [zbrush] you can create 16 bit normal and
displacement maps

but blender will import them as 8 [the tiff importer goes through
quicktime iirc]