Method multiplyMat4xVec4

src/main/java/net/optifine/shaders/SMath.java:19–25

(float[] vecOut, float[] matA, float[] vecB)

    }

    static void multiplyMat4xVec4(float[] vecOut, float[] matA, float[] vecB)
    {
        vecOut[0] = matA[0] * vecB[0] + matA[4] * vecB[1] + matA[8] * vecB[2] + matA[12] * vecB[3];
        vecOut[1] = matA[1] * vecB[0] + matA[5] * vecB[1] + matA[9] * vecB[2] + matA[13] * vecB[3];
        vecOut[2] = matA[2] * vecB[0] + matA[6] * vecB[1] + matA[10] * vecB[2] + matA[14] * vecB[3];
        vecOut[3] = matA[3] * vecB[0] + matA[7] * vecB[1] + matA[11] * vecB[2] + matA[15] * vecB[3];
    }

    static void invertMat4(float[] matOut, float[] m)
    {