Mutltiple Cameras with different lights

Unity Engine
,
1

Does anyone know a way to get different lights/light properties rendered for two cameras pointed at the same scene rendering at the same time?

I used to be able to disable/enable lights during the RenderPipelineManager.beginCameraRendering and RenderPipelineManager.endCameraRendering callbacks in the 2019.2 beta but i guess something changed in the implementation.

Maybe there is something I can do with the new CustomPass stuff?

If anyone has any pointers it would be great.

2

Actually nevermind. I’ve found SetLightDimmer on HDAdditionalLightData does actually get checked in the lightloop if I update that in those callbacks. So I can just set that instead of messing with gameObject.SetActive or Light.enabled

3

I had the same problem, I share my solution for URP if someone need it in the futur.
you have just to test if the camera is the good camera (it’s a little strange).

for disabling lights for a specific camera add this script to the camera and use addLight(Light) to add lights to disable

using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Rendering;
public class DisableLightsForCam : MonoBehaviour
{
    public List<Light> Lights;
    private Camera currentCam;

    private void OnEnable()
    {
        currentCam = transform.GetComponent<Camera>();
        RenderPipelineManager.beginCameraRendering += RenderPipelineManager_beginCameraRendering;
        RenderPipelineManager.endCameraRendering += RenderPipelineManager_endCameraRendering;
    }

    private void OnDisable()
    {
        RenderPipelineManager.beginCameraRendering -= RenderPipelineManager_beginCameraRendering;
        RenderPipelineManager.endCameraRendering -= RenderPipelineManager_endCameraRendering;
    }

     private void RenderPipelineManager_beginCameraRendering(ScriptableRenderContext context, Camera camera)
    {
        foreach (Light light in Lights)
        {
            if (camera == currentCam) light.enabled = false;
        }
    }

    private void RenderPipelineManager_endCameraRendering(ScriptableRenderContext context, Camera camera)
    {
        foreach (Light light in Lights)
        {
            if (camera == currentCam) light.enabled = true;
        }
    }

    public void addLight (Light light)
    {
        Lights.Add(light);
    }

    public void removeLight (Light light)
    {
        Lights.Remove(light);
    }

}

for enabling lights for a specific camera add this script to the camera and use addLight(Light) to add lights to enable

using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Rendering;
public class EnableLightsForCam : MonoBehaviour
{
    public List<Light> Lights;
    private Camera currentCam;

    private void OnEnable()
    {
        currentCam = transform.GetComponent<Camera>();
        RenderPipelineManager.beginCameraRendering += RenderPipelineManager_beginCameraRendering;
        RenderPipelineManager.endCameraRendering += RenderPipelineManager_endCameraRendering;
    }

    private void OnDisable()
    {
        RenderPipelineManager.beginCameraRendering -= RenderPipelineManager_beginCameraRendering;
        RenderPipelineManager.endCameraRendering -= RenderPipelineManager_endCameraRendering;
    }

     private void RenderPipelineManager_beginCameraRendering(ScriptableRenderContext context, Camera camera)
    {
        foreach (Light light in Lights)
        {
            if (camera == currentCam) light.enabled = true;
        }
    }

    private void RenderPipelineManager_endCameraRendering(ScriptableRenderContext context, Camera camera)
    {
        foreach (Light light in Lights)
        {
            if (camera == currentCam) light.enabled = false;
        }
    }
    public void addLight (Light light)
    {
        Lights.Add(light);
    }

    public void removeLight (Light light)
    {
        Lights.Remove(light);
    }
}
1 Like