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About codnob

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  1. Hi, I'm sorry, this is probably a very noob question but i wonder, if i have a vector direction and a start position, is there a simple mathematical way to compute the size of this vector on the final screen or must I project both the 3D start & end position (using worldviewproj) and then recompute a 2D vector ? (I guess just transform my 3D vector by the worldviewproj is not enough ?) Thanks.
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