Change atmosphere effect

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Changes the appearance of the atmosphere in a scene.

Image of change atmosphere effect

Use case

Atmospheric effect can be used to make the scene view look more realistic.

How to use the sample

Select one of the three available atmosphere effects. The sky will change to display the selected atmosphere effect.

How it works

  1. Create a scene and display it in a scene view.
  2. Change the atmosphere effect with the SceneView.AtmosphereEffect property.

Relevant API

  • SceneView
  • SceneView.AtmosphereEffect

Additional information

There are three atmosphere effect options:

  • Realistic - A realistic atmosphere effect is applied over the entire surface.
  • Horizon only - Atmosphere effect applied to the sky (horizon) only.
  • None - No atmosphere effect. The sky is rendered black with a starfield consisting of randomly placed white dots.

Tags

atmosphere, horizon, sky

Sample Code

ChangeAtmosphereEffect.cs
                                                                                                                           
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// Copyright 2019 Esri.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.
// You may obtain a copy of the License at: http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific
// language governing permissions and limitations under the License.

using System;
using Android.App;
using Android.OS;
using Android.Views;
using Android.Widget;
using Esri.ArcGISRuntime.Mapping;
using Esri.ArcGISRuntime.UI;
using Esri.ArcGISRuntime.UI.Controls;
using Surface = Esri.ArcGISRuntime.Mapping.Surface;

namespace ArcGISRuntimeXamarin.Samples.ChangeAtmosphereEffect
{
    [Activity (ConfigurationChanges=Android.Content.PM.ConfigChanges.Orientation | Android.Content.PM.ConfigChanges.ScreenSize)]
    [ArcGISRuntime.Samples.Shared.Attributes.Sample(
        name: "Change atmosphere effect",
        category: "Scene",
        description: "Changes the appearance of the atmosphere in a scene.",
        instructions: "Select one of the three available atmosphere effects. The sky will change to display the selected atmosphere effect. ",
        tags: new[] { "atmosphere", "horizon", "sky" })]
    public class ChangeAtmosphereEffect : Activity
    {
        // Hold references to the UI controls.
        private SceneView _mySceneView;
        private Button _realisticOption;
        private Button _horizonOnlyOption;
        private Button _noneOption;

        private readonly string _elevationServiceUrl = "https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer";

        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            Title = "Change atmosphere effect";

            CreateLayout();
            Initialize();
        }

        private void Initialize()
        {
            // Create the scene with a basemap.
            _mySceneView.Scene = new Scene(BasemapStyle.ArcGISImageryStandard);

            // Add an elevation source to the scene.
            Surface elevationSurface = new Surface();
            ArcGISTiledElevationSource elevationSource = new ArcGISTiledElevationSource(new Uri(_elevationServiceUrl));
            elevationSurface.ElevationSources.Add(elevationSource);
            _mySceneView.Scene.BaseSurface = elevationSurface;

            // Set the initial viewpoint.
            Camera initialCamera = new Camera(64.416919, -14.483728, 100, 318, 105, 0);
            _mySceneView.SetViewpointCamera(initialCamera);

            // Apply the selected atmosphere effect option.
            _realisticOption.Click += (o, e) => _mySceneView.AtmosphereEffect = AtmosphereEffect.Realistic;
            _horizonOnlyOption.Click += (o, e) => _mySceneView.AtmosphereEffect = AtmosphereEffect.HorizonOnly;
            _noneOption.Click += (o, e) => _mySceneView.AtmosphereEffect = AtmosphereEffect.None;
        }

        private void CreateLayout()
        {
            // Create a new vertical layout for the app.
            var layout = new LinearLayout(this) { Orientation = Orientation.Vertical };

            // Create a new horizontal layout to hold buttons for all three options.
            var buttonContainer = new LinearLayout(this) { Orientation = Orientation.Horizontal };

            // Layout parameters allow buttons to share space equally in the view.
            LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
                ViewGroup.LayoutParams.MatchParent,
                ViewGroup.LayoutParams.MatchParent,
                1.0f
            );

            // Create the scene view.
            _mySceneView = new SceneView(this);

            // Create the buttons and add them to the button container.
            _realisticOption = new Button(this);
            _realisticOption.Text = "Realistic";
            _realisticOption.LayoutParameters = layoutParams;

            _horizonOnlyOption = new Button(this);
            _horizonOnlyOption.Text = "Horizon only";
            _horizonOnlyOption.LayoutParameters = layoutParams;

            _noneOption = new Button(this);
            _noneOption.Text = "None";
            _noneOption.LayoutParameters = layoutParams;

            buttonContainer.AddView(_realisticOption);
            buttonContainer.AddView(_horizonOnlyOption);
            buttonContainer.AddView(_noneOption);

            // Add the views to the layout.
            layout.AddView(buttonContainer);
            layout.AddView(_mySceneView);

            // Show the layout in the app.
            SetContentView(layout);
        }

        protected override void OnDestroy()
        {
            base.OnDestroy();

            // Remove the sceneview
            (_mySceneView.Parent as ViewGroup).RemoveView(_mySceneView);
            _mySceneView.Dispose();
            _mySceneView = null;
        }
    }
}

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