1### Compilation failed: 2 3error: 1: invalid type 4layout(binding=0) sampler2D test2D; 5^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 6error: 2: invalid type 7layout(binding=1) sampler2D test2DRect; 8^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 9error: 4: 'main' must return: 'vec4', 'float4', or 'half4' 10void main() { 11^^^^^^^^^^^ 12error: 5: unknown identifier 'sk_FragColor' 13 sk_FragColor = sample(test2D, float2(0.5)); 14 ^^^^^^^^^^^^ 15error: 5: unknown identifier 'sample' 16 sk_FragColor = sample(test2D, float2(0.5)); 17 ^^^^^^ 18error: 5: unknown identifier 'test2D' 19 sk_FragColor = sample(test2D, float2(0.5)); 20 ^^^^^^ 21error: 6: unknown identifier 'sk_FragColor' 22 sk_FragColor = sample(test2DRect, float2(0.5)); 23 ^^^^^^^^^^^^ 24error: 6: unknown identifier 'sample' 25 sk_FragColor = sample(test2DRect, float2(0.5)); 26 ^^^^^^ 27error: 6: unknown identifier 'test2DRect' 28 sk_FragColor = sample(test2DRect, float2(0.5)); 29 ^^^^^^^^^^ 30error: 7: unknown identifier 'sk_FragColor' 31 sk_FragColor = sample(test2DRect, float3(0.5)); 32 ^^^^^^^^^^^^ 33error: 7: unknown identifier 'sample' 34 sk_FragColor = sample(test2DRect, float3(0.5)); 35 ^^^^^^ 36error: 7: unknown identifier 'test2DRect' 37 sk_FragColor = sample(test2DRect, float3(0.5)); 38 ^^^^^^^^^^ 3912 errors 40