| 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 | 設定値 |
Adds a command to set a float 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 passes (hit groups in DirectX Raytracing terminology) then CommandBuffer.SetGlobalFloat or Shader.SetGlobalFloat must be used.