[quote]
Blitz supports them fine, you just have to work with enough verts though.
BS. :) "Supports them fine" would mean that I load a model, apply tangent space normal to it, and them just move/animate the character/vehicle anyway I like and Blitz shows the normal map automagically and correctly. Updating vertex normals "by hand" every loop and other unnecessary "fixing" etc is not what I call "supports them just fine" :P
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*cough ... Actualy you don't need to do any vector manipulation "by hand". You can just use a cube map containing the lighting normals with your tangent space normal map DOT3 blended atop it ... then the models can move and animate with the "bumpmap" rendering completely taken care of useing only the GFX card :)