Camera - Cant Change Background Type or Color with script

I have been trying to get my camera's backround type and color be change using a script.
I looked at the scirpting API but these lines simple don't have any effect on my camera.
Does anybody have an idea why?


Camera cam = Camera.main;
cam.backgroundColor = Color.black;
cam.clearFlags = CameraClearFlags.SolidColor;

Also I haven't found any information on how to change the cameras's "volume layer mask" using a script. Does anybody know how to do that?

I am using Unity 2019.3.07b and the HDRP.
Glad for any help I can get!

 

Weird that the camera does not change color. You do have to set the Visual Environment volume override to None to see the traditional Camera background color. But now that you said it, I tried it and couldn't change the background color via code, even though I can see the value change in debug printout. I don't think cameras need any kind of apply command to make the value change?

 

You can set the "new stuff" with code too. You need to have proper components so that it's working.

Add Gradient Sky override to your scene settings, and try following:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.Experimental.Rendering.HDPipeline;
5. using UnityEngine.Rendering;
6.  
7. public class ChangeCameraVolumeSettings : MonoBehaviour
8. {
9.     VisualEnvironment visualEnvironment;
10.     GradientSky gradientSky;
11.  
12.     // Start is called before the first frame update
13.     void Start()
14.     {
15.         Volume volume = gameObject.GetComponent<Volume>();
16.         VisualEnvironment tempVis;
17.         if (volume.profile.TryGet<VisualEnvironment>(out tempVis) )
18.         {
19.             visualEnvironment = tempVis;
20.         }
21.         GradientSky tempGradSky;
22.         if (volume.profile.TryGet<GradientSky>(out tempGradSky) )
23.         {
24.             gradientSky = tempGradSky;
25.         }
26.  
27.         // Set the sky type
28.         visualEnvironment.skyType.value = (int)SkyType.Gradient;
29.  
30.         // Set the sky parameters
31.         gradientSky.top.value = Color.red;
32.         gradientSky.middle.value = Color.green;
33.         gradientSky.bottom.value = Color.blue;
34.         gradientSky.gradientDiffusion.value = 2.0f;
35.     }
36. }

This will change your gradient sky settings. You can apply similar procedure to other overrides.

Be sure that you include UnityEngine.Experimental.Rendering.HDPipeline and UnityEngine.Rendering.

 

Thanks so much @Olmi , I hadn't included HDRenderpipeline!
Using HDRP to change the background color there is a new attribute called backgroundColorHDR, which you have to adjust in the HDAdditionalCameraData component.
This is super confusing if you believe it is simply using the background color and clearflags...

If anybody else faces the issue, these lines did the trick:
cam.GetComponent<HDAdditionalCameraData>().clearColorMode = HDAdditionalCameraData.ClearColorMode.Color;
cam.GetComponent<HDAdditionalCameraData>().backgroundColorHDR = Color.black;
cam.GetComponent<HDAdditionalCameraData>().volumeLayerMask = 0;


Thanks Olmi

 

Thanks @dschmuck. Your solution works like a charm. Was looking exactly for this.

 

This is so stupid and messy, if they were going to make the API essentially broken, they should have had an HDRPCamera instead so you know which API actually works.

 

Actually lost the whole hour on this as well ...

 

Yep, 4 years later and this post is still saving lives. Lost a couple of hours before finding this weird undocumented fix.
Thanks @dschmuck