resources/sksl/wgsl/InterfaceBlockUniforms.sksl

layout(set=12, binding=34) uniform UniformBuffer {
    layout(offset=0)  half2x2 m1;
    layout(offset=32) half2x2 m2;
};

void main() {
    sk_FragColor = half4(m1[0][0], m1[1][1], m2[0][0], m2[1][1]);
}