strange lightning with ase models
Author
hello,
im loading models that i exported as ASE from 3d studio max. but they have a strange lighting.
see: http://www.wapod.com/~grumble/misc/badlighting.jpg
also they have 3 different normals per vertex. is this supposed to be?
thanks.
Dude around 2500 can not be right with that thing!The light can have wrong params,the normals can be calculated wrong and
other things like that.Usually 3DSMax is exporting not only the vertex normals but also the face normals.Try using them too.And try to fix that light.
"You losers better learn...NOONE CONTROLS OUR GOD DAMN LIFE!!!" - MANOWAR
other things like that.Usually 3DSMax is exporting not only the vertex normals but also the face normals.Try using them too.And try to fix that light.
"You losers better learn...NOONE CONTROLS OUR GOD DAMN LIFE!!!" - MANOWAR
Author
what exactly could be wrong with the light?
GLfloat lightpos[]= { 0.0f, 1.0f, 0.0f, 0.0f };
this is all i use.
what about the normals on the vertices? should there be 3 or only 1?
GLfloat lightpos[]= { 0.0f, 1.0f, 0.0f, 0.0f };
this is all i use.
what about the normals on the vertices? should there be 3 or only 1?
Each polygon should have 3 normals -- one per vertex. I hate dealing with 3DSMax because the data is always crazy and a royal P.I.T.A. to figure out. Good luck determining which is the proper vertex normal...
I have had similar problems with Max exporting to OBJ. My solution was to have it just export face normals and I calculate the vertex normals myself.
also, the normals are in objectspace, and the object in worldspace 
so you have to translate the normals with the objects matrice, or the vertieces with the inverse of the matrice before you combine them..
so you have to translate the normals with the objects matrice, or the vertieces with the inverse of the matrice before you combine them..
Generally, you either use the face normals or the vertex normals. I suggest the latter. Also, remember that the coordinates in max are in XZY orientation, not XYZ. Also, the Z values in max have the negative Z going out of the screen. Usually, i have the negative Z values going into the screen, so i negate all the z values as well.
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