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Generere normal maps 
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Level 3 - Infant

Joined: 21 Jul 2009, 17:03
Posts: 32
Post Generere normal maps
Jeg kunne godt taenke mig at implementere en lign. algoritme som i nVidia's NormalMap plugin til PhotoShop.
Den tager en bumpmap/heightmap og konventere den til en normalmap.
Er der nogen herinde der har stoedt paa kode der kan goere dette?

Paa forhaand tak :)


06 Jan 2010, 13:49
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Level 3 - Infant

Joined: 21 Jul 2009, 17:03
Posts: 32
Post Re: Generere normal maps
...evt. links til artikler der behandler emnet tages ogsaa imod med kyshaand... :)


08 Jan 2010, 13:44
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Level 40 - Rick Dangerous

Joined: 12 Mar 2008, 13:18
Posts: 402
Post Re: Generere normal maps
For hver pixel i dit billede kan du sample pixel værdier til alle fire sider og dermed få to tagentværdier, der repræsenterer hældningen. Herefter kan du så finde den 3D vektor der opfylder de slopes og fra xyz kan du så converte til rgb.

_________________
Michael 'Zacker' Schmidt, http://www.thefuture.dk


08 Jan 2010, 15:37
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