| 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.
Only shaders defined in the .raytrace file can access the vector you designate as the argument for this method. To make this vector accessible to all ray tracing shader types (closest hit, any hit, or miss, for example), call the CommandBuffer.SetGlobalVector method instead.