post-processing

Post-Processing

Toggle and tune Bloom, Depth-of-Field, Screen-Space Ambient Occlusion (SSAO), and Fog in real time with interactive sliders.

What it demonstrates

• Filament View post-processing options: bloomOptions, depthOfFieldOptions, ambientOcclusionOptions, fogOptions
• Passing a custom View via rememberView(engine) { createView(engine).apply { … } }
• Reactive option updates — Compose state writes directly to Filament view options each recomposition
• Auto-orbiting camera using animateRotation with infiniteRepeatable
• No new SceneView API needed — all effects use the existing view parameter on Scene

Key code

val view = rememberView(engine) {
    createView(engine).apply { setShadowingEnabled(true) }
}

// Bloom — reactive from Compose state
view.bloomOptions = view.bloomOptions.also {
    it.enabled = bloomEnabled
    it.strength = bloomStrength
    it.lensFlare = bloomLensFlare
}

// SSAO
view.ambientOcclusionOptions = view.ambientOcclusionOptions.also {
    it.enabled = ssaoEnabled
    it.intensity = ssaoIntensity
}

Scene(
    modifier = Modifier.fillMaxSize(),
    view = view,
    environment = environment
) {
    modelInstance?.let { ModelNode(modelInstance = it, scaleToUnits = 0.5f) }
}

Running the sample

Open the project in Android Studio and run the :samples:post-processing configuration.