LPD3DVECTOR D3DRMVectorAdd(LPD3DVECTOR lpd, LPD3DVECTOR lps1,
LPD3DVECTOR lps2);
Adds two vectors.
·Returns the address of the vector that was passed as the first parameter if successful, or zero otherwise.
lpd
Address of a D3DVECTOR structure that will contain the result of the addition.
lps1 and lps2
Addresses of the D3DVECTOR structures that will be added together.