When creating a Custom Function node in Shader Graph and entering inline HLSL code or specifying an external .hlsl file, a large number of "Shader Compile Errors" occur in the console, and the material displays a pink error message and stops working.
The cause is that the suffix "_float" or "_half" indicating the precision required by Shader Graph is missing when defining the HLSL function name, or the order and data type of the node's input/output port definition and the HLSL function argument do not match.
Explicitly add a precision suffix (e.g. `_float` or `_half`) to the end of the function name declaration in your HLSL code. In addition, the Inputs/Outputs set in the node and argument declarations must match exactly.
A construction pattern for safely compiling your own HLSL algorithms within the Shader Graph. A construction pattern for safely compiling your own HLSL algorithms within the Shader Graph.
If the node definition name is `MyCustomCalculation`, be sure to add a suffix to the HLSL side definition.
void MyCustomCalculation_float(float3 Input1, out float Output1)
{
Output1 = Input1.x + Input1.y + Input1.z;
}