Hi all,
I am trying to do a vtf on a cube map, and I am getting a syntax error on this in my vertex shader:-
float h = tex3Dlod(heightMapSampler, t).r;
“No overload for tex3Dlod takes 2 parameters”
It’s a Window DX project and I have gont to SM 5, anyone know why It’s doing this, really would like ti use it for some mesh displacement 
Is heightMapSampler maybe defined as sampler2D? It should be sampler3D or sampler.
And then there is always the more modern alternative:
texture.SampleLevel(sampler, float3(1,1,1), 1);
No, defo a sampler3D, in the pixel shader I am sailing it to render the map on the mesh for now.
I only get this error with a sampler2D, with a sampler3D it works fine. No idea what could be different in your case.
I’ll dump the whole shader here, its a simple beast.
2 ticks
As ever @markus, you are a star, while I was not using sampler2D, I was using samplerCUBE, which I thought was OK, but changed it to sampler3D and now I don’t get the error
Changes my VTF to texCUBElod, and it runs 
Silly me 
