Function multiplyMatrices

scripts/compare-ibm.mjs:295–307

(a, b)

// Verify by checking M * M^-1 = I
function multiplyMatrices(a, b) {
    const result = new Float32Array(16);
    for (let row = 0; row < 4; row++) {
        for (let col = 0; col < 4; col++) {
            let sum = 0;
            for (let k = 0; k < 4; k++) {
                sum += a[row + k * 4] * b[k + col * 4];
            }
            result[row + col * 4] = sum;
        }
    }
    return result;
}

console.log('\n=== VERIFICATION: TransformLink * IBM should = Identity ===');
const verify1 = multiplyMatrices(tlColMajor, ibmCorrect);