Texture3D not working in Unity Plus

Hi,

Is Texture3D supported in Unity plus or just Unity pro? I couldn't find that specific info anywhere.

I'm currently running Unity plus and trying to create a voxel based vector field texture for some DirectCompute fluid sim/ particle system work I'm doing.

If it is supported, can someone tell me what I am doing wrong? The texture seems to be created fine (i.e. it has colors when I open it in the inspector.)

Here's my code for creating the texture:

Code (CSharp):

1.  
2. void CreateVectorFieldTexture()
3.     {
4.         int idx = 0;
5.  
6.         int res = (int)_vectorField._fieldInfo[0].Resolution.x;
7.         var data = new Color[res * res * res];
8.  
9.         _vectorFieldTexture = new Texture3D(res, res, res, TextureFormat.RGBAFloat, true);
10.         _vectorFieldTexture.name = "VectorField";
11.         _vectorFieldTexture.filterMode = FilterMode.Trilinear;
12.         _vectorFieldTexture.wrapMode = TextureWrapMode.Repeat;
13.  
14.         for (int x = 0; x < res; x++)
15.             for (int y = 0; y < res; y++)
16.                 for (int z = 0; z < res; z++)
17.                 {
18.                     Color c = new Color();
19.                     var dir = _vectorField._vectorInfo[x + res * y + res * (x + y)].Direction;
20.                     c.r = dir.x;
21.                     c.g = dir.y;
22.                     c.b = dir.z;
23.  
24.                     data[idx] = c;
25.  
26.                     idx++;
27.                 }
28.         _vectorFieldTexture.SetPixels(data);
29.         _vectorFieldTexture.Apply();
30.     }
31.  

Binding the texture...

Code (CSharp):

1.  
2.         ComputeKernels.SetTexture(0, "_vectorField", _vectorFieldTexture);
3.  

And the shader code...

Code (CSharp):

1. Texture3D<float4> _vectorField : register(t0);
2. SamplerState sampler_vectorField : register(s0)
3. {
4.     Filter = MIN_MAG_MIP_POINT;
5.     AddressU = Clamp;
6.     AddressV = Clamp;
7. };
8.  
9.  
10.  
11. [numthreads(NumThreads, 1, 1)]
12. void UpdateParticles(uint3 id : SV_DispatchThreadID)
13. {
14.    Particle p = Particles[id.x];
15. // should sample the texture at mip level 0
16.    p.velocity = _vectorField.SampleLevel(sampler_vectorField, float3(.2,.3, .1), 0);
17.    Particles[id.x] = p;
18. }

The sampler is returning 0,0,0 no matter where I sample from. Not sure what I'm doing wrong...

Any ideas greatly appreciated!

 

Oops I meant to put this in the regular Graphics section. Mods plz delete this one...