Skybox Not Visible when camera is changed

🌵 Needle Engine
1

Hi i’m trying to change my sky in runtime through and then i change my camera but when i try to assign the new skybox after changing the camera the skybox does not seems to change in the new camera view. But if a run the function again this time it changes the skybox. this is the code i’m using:

public assignLowInteriorSkybox()
{
if(this.interiorLowResTexture!=null)
{
this.camera1.setActive(false);
this.camera2.setActive(true);

            console.error("Applying Low Res Seat Skybox");
            
            this.interiorLowResTexture.colorSpace = SRGBColorSpace;
            this.interiorLowResTexture.mapping = EquirectangularRefractionMapping;
            this.context.scene.environment = this.interiorLowResTexture;
            this.context.scene.background = this.interiorLowResTexture;

        }

        else
        {
            console.error("Interior Texture is Not Found");
            
        }

       


    }
2

Hi Abdul Raheem,

It sounds like you’re having an issue where the skybox isn’t immediately visible when switching cameras in your scene. Based on the provided code, it’s likely that the skybox environment doesn’t update until the render loop runs again.

Here’s a possible solution to ensure the skybox updates correctly when you switch cameras. You can force a scene update or request a render after changing the skybox. You may also consider checking if the camera switch is completed before applying the skybox.

Here’s a revised version of your method:

public void AssignLowInteriorSkybox()
{
    if (this.interiorLowResTexture != null)
    {
        this.camera1.setActive(false);
        this.camera2.setActive(true);
        
        console.error("Applying Low Res Seat Skybox");

        this.interiorLowResTexture.colorSpace = SRGBColorSpace;
        this.interiorLowResTexture.mapping = EquirectangularRefractionMapping;
        this.context.scene.environment = this.interiorLowResTexture;
        this.context.scene.background = this.interiorLowResTexture;

        // Request a render update or force a scene refresh
        this.context.render(); // Assuming this calls the render loop. Adjust based on your engine's API.
    }
    else
    {
        console.error("Interior Texture is Not Found");
    }
}

Next Steps:

  1. Make sure your rendering method (this.context.render()) is correct.
  2. Confirm that your cameras are positioned properly and functioning correctly.

You might also want to look into your rendering loop to ensure it’s running as expected. Let me know if this helps or if you need further assistance!

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3

there is no function named “render” in the context class

4

there is no function named “render” in the context class

5

Hi Abdul Raheem,

Thank you for the clarification. If there isn’t a render function in the context class, the skybox may require a different approach to refresh after switching cameras. Instead, you might want to ensure the rendering state is properly updated. Here’s an updated suggestion without the render function:

  1. After changing the skybox and switching cameras, call the camera’s update method if available.
  2. Force an update of the scene if your context has an update mechanism.

Here’s an example approach:

public void AssignLowInteriorSkybox()
{
    if (this.interiorLowResTexture != null)
    {
        this.camera1.setActive(false);
        this.camera2.setActive(true);
        
        console.error("Applying Low Res Seat Skybox");

        this.interiorLowResTexture.colorSpace = SRGBColorSpace;
        this.interiorLowResTexture.mapping = EquirectangularRefractionMapping;
        
        // Assuming we can assign environments correctly
        this.context.scene.environment = this.interiorLowResTexture;
        this.context.scene.background = this.interiorLowResTexture;

        // Check for an update method on the camera or context
        if (this.camera2.update) {
            this.camera2.update(); // Update camera if this method exists
        }

        if (this.context.update) {
            this.context.update(); // Update context if this method exists
        }

    }
    else
    {
        console.error("Interior Texture is Not Found");
    }
}

Next Steps:

  • Investigate if your camera or context has update mechanisms that can force a refresh.
  • Alternatively, check your rendering loop logic to see if the frame needs to be manually triggered to reflect changes.

Let me know if you need more help or if any specific methods in your context or camera are available!

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