Bug Cannot convert UnityTexture2D to Texture2D<float4> for custom function node

I keep getting this error but do not know how to fix it.

I have a function that takes in a Texture2D and a SampleState but it give my custom node an error about converting the two textures.

How do i fix this problem?

My code looks like this:

Code (CSharp):

1. void RGBSplit_float(float Split, Texture2D Texture, SamplerState Sampler, float2 UV, out float3 Out)
2. {
3.     float2 offset = float2(Split,Split);
4.     float r = SAMPLE_TEXTURE2D(Texture, Sampler, UV - offset).r;
5.     float g = SAMPLE_TEXTURE2D(Texture, Sampler, UV).g;
6.     float b = SAMPLE_TEXTURE2D(Texture, Sampler, UV + offset).b;
7.     Out = float3(r,g,b);
8. }

I am passing in my Texture in Shader Graph linked like this:



So why does my custom node give this error ? And how do i fix it ? My Shader Graph version is 131.8 if that matters.

The full error:

Code (CSharp):

1. Shader error in 'Master': 'RGBSplit_float': cannot convert from 'struct UnityTexture2D' to 'Texture2D<float4>' at line 200 (on d3d11)

 

Try replacing

Texture2D

with

UnityTexture2D

.

These SAMPLE_ macros take UnityTexture2D.

The other day I had the same problem when using SAMPLE_TEXTURE2D_LOD

Code (CSharp):

1. void GetSampleLOD_float(UnityTexture2D tex, float2 uv, float offset, float lod, out float4 color)
2. {
3.     // Note: can't use Texture2D, much better to use UnityTexture2D
4.     // for tex's sampler state use "tex.samplerState"
5.  
6.     float o = offset;
7.     color = SAMPLE_TEXTURE2D_LOD(tex, tex.samplerstate, uv + float2( o,  0), lod);
8. }

 

How did you figure this out I would never have guessed this...

 

On a ShaderGraph's asset, I clicked the button View Generated Shader and within the garbled trash that it spat out there was this magical line which really got the noggin joggin:

Code (CSharp):

1. UnityTexture2D _Property_b3eaacee9c4946148e9c27166093c088_Out_0 = UnityBuildTexture2DStructNoScale(_MainTex);

Thank you, _Property_b3eaacee9c4946148e9c27166093c088 !!!

 

Hmm I have no idea how to interpret that line - still new to shader code so this is very block box and hard to decipher at the moment. I was hoping URP/HDRP would make writing shaders easier than the old built in ways !