I am simply trying to load a buffer into a texture2d and to load that texture into an existing shader. This doesn't seem to be working for me.

So for example :

float TableData[12] = {
0.0, 0.0, 0.0 , 0.0, 0.0, 0.0 , 0.0, 0.0, 0.0 , -0.572215, -0.819053, 0.0415015 };

RayTracingPrimaryRays.cpp

SHADER_PARAMETER_RDG_TEXTURE(Texture2D, Table)

FUpdateTextureRegion2D* Region = new FUpdateTextureRegion2D(0, 0, 0, 0, 2, 2); UTexture2D* TableTex = UTexture2D::CreateTransient(2, 2, PF_FloatRGB); 
TableTex->UpdateTextureRegions(0, 1, Region, 2 * 3, 96, (uint8*)TableData); PassParameters->Table = (TAlignedShaderParameterPtr<FRDGTexture*>)TableTex ;

Then in the shader RayTracingPrimaryRays.usf

Texture2D Table ;
RayDesc Ray = CreatePrimaryRay(UV);
Ray.Direction = normalize ( float3 ( Table.SampleLevel(GlobalPointClampedSampler, float2(0,0), 0 ).x, Table.SampleLevel(GlobalPointClampedSampler, float2(0,0), 0 ).y, Table.SampleLevel(GlobalPointClampedSampler, float2(0,0), 0 ).z) ) ;

This code just doesn't seem to be working. I am trying to redirect the rays of the ray tracer by using a buffer of 3d floats. That's all. I don't like to shoot in the dark and try to get clarity about how I can accomplish this simple task. Can someone help me? Thanks.