1### Compilation failed: 2 3error: 1: invalid type 4layout(binding=0) uniform 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: 5: unknown identifier 'sk_FragColor' 13 sk_FragColor = c * sampleLod(t, half3(1), 0); 14 ^^^^^^^^^^^^ 15error: 5: unknown identifier 'c' 16 sk_FragColor = c * sampleLod(t, half3(1), 0); 17 ^ 18error: 5: unknown identifier 'sampleLod' 19 sk_FragColor = c * sampleLod(t, half3(1), 0); 20 ^^^^^^^^^ 216 errors 22