|y/z up axis converter problem
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|Author:||wiseguy [ 06.09.2015, 11:31 ]|
|Post subject:||y/z up axis converter problem|
I was reading thru the code for H3D collada converter and found a strange line of code regarding adjusting for Z_UP flag in collada.
if( !_daeDoc.y_up )
swap( v.pos.y, v.pos.z );
v.pos.z *= -1;
Swap of z and y coordinate is obvious, but the negation of z is strange.
I was importing a Blender model with a modified H3D converter for my own engine and everything worked fine, skeletal animations, meshes. The only thing wrong was that the model was pointing in the negative z direction when it should point in positive z direction. Can than be because of that line of code?
|Author:||Volker [ 06.09.2015, 21:56 ]|
|Post subject:||Re: y/z up axis converter problem|
Probably yes. I think the reason for this line was left handed vs. right handed coordinate system. But it has been a long time ago that I've ocupied myself with that code.
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