| rayTracingShader | RayTracingShader to set parameter for. |
| name | Name of the variable in shader code. |
| nameID | Property name ID. Use Shader.PropertyToID to get this ID. |
| val | Value to set. |
Adds a command to set a vector parameter on a RayTracingShader.
The value specified as argument can be used only by the shaders defined inside the .raytrace file associated with the RayTracingShader. If the value needs to be visible in all ray tracing shader types (closesthit, anyhit, miss, etc.) then CommandBuffer.SetGlobalVector or Shader.SetGlobalVector must be used.