### Compilation failed:

error: 10: no match for shader::eval(float2, half4)
error: 11: no match for shader::eval(half4)
error: 12: no match for shader::eval(half4, float2)
error: 13: no match for shader::eval()
error: 14: no match for shader::eval(float3x3)
error: 16: no match for colorFilter::eval()
error: 17: no match for colorFilter::eval(float2)
error: 18: no match for colorFilter::eval(float2, half4)
error: 20: no match for blender::eval()
error: 21: no match for blender::eval(half4)
error: 22: no match for blender::eval(float2)
error: 23: no match for blender::eval(float2, half4)
12 errors