3d modelling - 3D model format with multiple UV coords and custom attributes per vertex -

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let's using custom glsl shader uses special interleaved array format made of 11 floats :position (3 floats), normal (3 floats),uvcoord-1 (2 floats), uvcoord-2 (2 floats),custom attribute (1 float).

i need file format (preferably ascii) allows me export information (especially multiple uv coords multi-texturing) per vertex 3d modelling software (eg. blender, maya,etc) , import application. have searched on net, can't seem find format allows multiple(custom) data channels per vertex.am missing obvious?

for example:i using .obj format , seems export position, normal , 1 texture exported.

why not define own format? if you're looking ready use, have @ openctm http://openctm.sourceforge.net


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