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Viper173

normal adjustment

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how can I rotate / scale / move my normals in my animation so that correct lighting will be possible? I guess that you have to multiply it somehow with the current matrix...??

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quote:
Original post by Viper173
I guess that you have to multiply it somehow with the current matrix...??


Yep, just like vertices but don''t use translation part from the matrix.

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that''s what I did...
here''s my code:

glGetFloatv(GL_MODELVIEW_MATRIX, @m);

V[1] := VertexNormals[1]*m[1,1] +
VertexNormals[2]*m[2,1] +
VertexNormals[3]*m[3,1] +
0*m[1,4];
V[2] := VertexNormals[1]*m[1,2] +
VertexNormals[2]*m[2,2] +
VertexNormals[3]*m[3,2] +
0*m[2,4];
V[3] := VertexNormals[1]*m[1,3] +
VertexNormals[2]*m[2,3] +
VertexNormals[3]*m[3,3] +
0*m[3,4];

V := NormalizeVector(V);
glNormal3fv(@V);

but it''s still screwed...

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