AC3D File Format

Thaellin · 23rd December 2010, 06:32 PM

Crease determines the point at which vertex lighting normals include/exclude neighboring surfaces from their calculation. If the angle between two surfaces is greater than the crease angle, the surface normals for those surfaces will both contribute to the vertex normal used for lighting a shared vertex.

texrep - yes, really floats. In OpenGL, use these as parameters to glScale2f( a,b ) with the matrix mode set to texture. Should get you the right effect.

world is just the top-level node in the object hierarchy. group is a node which can contain other groups or objects. Neither world nor group shoudl define polys. Objects (can) contain polys. Objects can exist at any level of the hierarchy and can represent lights or objects such as you would manipulate in 'object' mode in the AC3D editor.

world: I do not recall clearly, but I think kids is all to expect in world.

world data/url: not sure.
group data: should work.

23rd December 2010, 06:32 PM	#1
Thaellin Senior Member Professional user Join Date: Jun 2003 Location: British Columbia, Canada Posts: 255	Re: AC3D File Format Crease determines the point at which vertex lighting normals include/exclude neighboring surfaces from their calculation. If the angle between two surfaces is greater than the crease angle, the surface normals for those surfaces will both contribute to the vertex normal used for lighting a shared vertex. texrep - yes, really floats. In OpenGL, use these as parameters to glScale2f( a,b ) with the matrix mode set to texture. Should get you the right effect. world is just the top-level node in the object hierarchy. group is a node which can contain other groups or objects. Neither world nor group shoudl define polys. Objects (can) contain polys. Objects can exist at any level of the hierarchy and can represent lights or objects such as you would manipulate in 'object' mode in the AC3D editor. world: I do not recall clearly, but I think kids is all to expect in world. world data/url: not sure. group data: should work.