Sample TextureCubeArray
Menu Path : Operator > Sampling > Sample TextureCubeArray
The Sample TextureCubeArray Operator allows you to sample a TextureCubeArray for a specified slice, direction, and Mip level. The Operator uses the same Filter Mode and Wrap Mode modes as the import settings.
This translates to a Sample() call on the texture in High-Level Shading Language (HLSL). For information on the differences between loading and sampling, see Loading and sampling.
Loading and sampling
In the Visual Effect Graph, there are multiple Operators that can read texel values from a texture. In the underlying (HLSL), some of them use Load() and others use Sample().
The differences between the Operators that use Load() and Operators that use Sample() is as follows:
- Load() does not apply any filtering to the final texel value whereas Sample() uses the same Filter Mode as the target Texture's import settings.
- Load() does not apply any wrapping and instead returns 0 for coordinates that specify a texel outside the texture. Sample() uses the same Wrap Mode as the target Texture's import settings.
- Load() uses texel coordinates (in the range of 0 to the texture's width/height minus 1) whereas Sample() uses UV coordinates (in the range of 0-1).
Operator properties
| Property | Type | Description |
|---|---|---|
| Texture | TextureCubeArray | The texture array this Operator samples from. |
| UVW | Vector3 | The direction this Operator uses to sample the TextureCube. |
| Slice | uint | The texture slice this Operator samples from. |
| Mip Level | float | The mip level this Operator uses for the sampling |
| Property | Type | Description |
|---|---|---|
| s | Vector4 | The sampled value from the texture array |
Limitations
This Operator only runs on the GPU, therefore it does not work when plugged into Spawner Context ports.