Rendering Discrepancy on Older Android Smartphones (e.g., LG G6)

[dsilvera]

Issue Description
I am facing a rendering issue with the SceneView library on certain older Android smartphones, specifically observed on an LG G6 running Android 9. The problem manifests as an excessively elevated perception of light, resulting in an inconsistent rendering of my 3D model. This issue is not present on newer smartphones.

Code Snippet for light

environment = environmentLoader.createHDREnvironment(hdrFilePath)!!
        environment.indirectLight?.intensity = 60_000F
        val colorGrading: ColorGrading = ColorGrading.Builder()
            .toneMapper(ToneMapper.Linear())
            .contrast(0.955f)
            .vibrance(0.952f)
            .exposure(0.0835f)
            .saturation(0.867f)
            .build(engine)

        view.colorGrading = colorGrading

        val (r, g, b) = Color(0.9098f, 0.5294f, 0.2627f, 1.0f) //Colors.cct(6_500.0f)

        lightNodeAmbien = LightNode(engine, LightManager.Type.DIRECTIONAL) {
            color(r, g, b)
            intensity(180_100.0f) //320_000.0f is good
            position(0f, 0f, 0f)
            direction(0f, 0f, -10f)
            castShadows(false)
        }

        addChildNode(lightNodeAmbien!!)
        cameraNode.addChildNode(lightNodeAmbien!!)

        val (r2, g2, b2) = Color(0.6745f, 0.7059f, 0.9098f, 1.0f)

        lightNode1 = LightNode(engine, LightManager.Type.DIRECTIONAL) {
            color(r2, g2, b2)
            intensity(180_300.0f)
            direction(-0.55f, -0.15f, 0.0f)
            castShadows(false)
        }

        addChildNode(lightNode1!!)
        cameraNode.addChildNode(lightNode1!!)

        val (r3, g3, b3) = Color(0.9804f, 0.7333f, 0.7255f, 1.0f)

        lightNode2 = LightNode(engine, LightManager.Type.POINT) {
            color(r3, g3, b3)
            intensity(60_000.0f)
            position(0.05f, -0.055f, 0.03f)
            castShadows(false)
        }

        addChildNode(lightNode2!!)
        cameraNode.addChildNode(lightNode2!!)

Problem Details
Upon closer inspection, I have noticed that the rendering inconsistency is more pronounced on devices with outdated specifications, such as the LG G6. The issue persists despite employing a consistent codebase and rendering parameters across various devices.

Additional Context
Affected Device: LG G6
Android Version: 9

Screenshots

[grassydragon]

Hi!
Since you're saying that the code is the same for all devices, there can be a rendering issue related to the Filament engine used in Sceneview. Additionally, I haven't found any condition in Sceneview that can change rendering parameters on Android 9. However, you can try disabling some lighting effects (for example, ambient occlusion) to see if it helps.

[dsilvera]

Thank you for your reply.

I found the solution. If I set the parameter indirectLightSpecularFilter to false when I created the environment, it works for all devices :

environment = environmentLoader.createHDREnvironment(
            hdrFilePath,
            indirectLightSpecularFilter = false
        )