minMatrix.js : multiply - gl

minMatrix.js : multiply

構文 : matIV.multiply(mat1, mat2, dest)

引数 : mat1 > 掛け合わせの元となる行列

引数 : mat2 > 掛け合わせる行列

引数 : dest > 演算結果を格納する行列

mat1 を左項、mat2 を右項として掛け合わせた結果を dest に出力します。

code:js

this.multiply = function(mat1, mat2, dest){

var a = mat10, b = mat11, c = mat12, d = mat13,

e = mat14, f = mat15, g = mat16, h = mat17,

i = mat18, j = mat19, k = mat110, l = mat111,

m = mat112, n = mat113, o = mat114, p = mat115,

A = mat20, B = mat21, C = mat22, D = mat23,

E = mat24, F = mat25, G = mat26, H = mat27,

I = mat28, J = mat29, K = mat210, L = mat211,

M = mat212, N = mat213, O = mat214, P = mat215;

dest0 = A * a + B * e + C * i + D * m;

dest1 = A * b + B * f + C * j + D * n;

dest2 = A * c + B * g + C * k + D * o;

dest3 = A * d + B * h + C * l + D * p;

dest4 = E * a + F * e + G * i + H * m;

dest5 = E * b + F * f + G * j + H * n;

dest6 = E * c + F * g + G * k + H * o;

dest7 = E * d + F * h + G * l + H * p;

dest8 = I * a + J * e + K * i + L * m;

dest9 = I * b + J * f + K * j + L * n;

dest10 = I * c + J * g + K * k + L * o;

dest11 = I * d + J * h + K * l + L * p;

dest12 = M * a + N * e + O * i + P * m;

dest13 = M * b + N * f + O * j + P * n;

dest14 = M * c + N * g + O * k + P * o;

dest15 = M * d + N * h + O * l + P * p;

return dest;

};

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