1### Compilation failed: 2 3error: 1: invalid type 4layout(binding=0) sampler2D t; 5^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 6error: 2: 'main' must return: 'vec4', 'float4', or 'half4' 7void main() 8^^^^^^^^^^^ 9error: 4: unknown identifier 'sampleLod' 10 half4 c = sampleLod(t, half2(0), 0); 11 ^^^^^^^^^ 12error: 4: unknown identifier 't' 13 half4 c = sampleLod(t, half2(0), 0); 14 ^ 15error: 5: unknown identifier 'sk_FragColor' 16 sk_FragColor = c * sampleLod(t, half3(1), 0); 17 ^^^^^^^^^^^^ 18error: 5: unknown identifier 'c' 19 sk_FragColor = c * sampleLod(t, half3(1), 0); 20 ^ 21error: 5: unknown identifier 'sampleLod' 22 sk_FragColor = c * sampleLod(t, half3(1), 0); 23 ^^^^^^^^^ 24error: 5: unknown identifier 't' 25 sk_FragColor = c * sampleLod(t, half3(1), 0); 26 ^ 278 errors 28