|  |  | 
1D texture lookup with LOD.
| ret tex1Dlod(s, t) | 
|---|
Where:
| Name | In/Out | Template Type | Component Type | Size | 
|---|---|---|---|---|
| s | in | object | sampler1D | 1 | 
| t | in | vector | float | 4 | 
| ret | out | vector | float | 4 | 
The mipmap LOD is specified in t.w.
This intrinsic function is supported in the following (or later) shader versions:
| Vertex Shader | Pixel Shader | 
|---|---|
| n/a | ps_3_0 |