>>2012/6/12 Nozomi Kodama <nozomi.kod...@yahoo.com>: >> >> + if ( (pq->w >= 1.0f) || (pq->w == -1.0f) ) > >I think the second comparison should be '<=', if you want to avoid getting >NaNs.
I checked in Vista. D3DX accepts -1.0f as input and returns what the patch does. However, any value < -1.0f is a unacceptable value for D3DX ( D3DX returns (-1#IND00,-1#IND00,-1#IND00,-1#IND00) ). Best regards Nozomi
