resources/sksl/spirv/LayoutVkSampler.sksl

layout(spirv, set=3, binding=5) uniform sampler2D yuvSampler;
layout(spirv, set=7, texture=9, sampler=11) uniform sampler2D vkSampler;

void main() {
    sk_FragColor = sample(yuvSampler, float2(0)) +
                   sample(vkSampler, float2(0));
}