public override bool Update(LightComponent lightComponent)
{
var range = Math.Max(0.001f, Range);
InvSquareRange = 1.0f / (range * range);
var innerAngle = Math.Min(AngleInner, AngleOuter);
var outerAngle = Math.Max(AngleInner, AngleOuter);
AngleOuterInRadians = MathUtil.DegreesToRadians(outerAngle);
var cosInner = (float)Math.Cos(MathUtil.DegreesToRadians(innerAngle / 2));
var cosOuter = (float)Math.Cos(AngleOuterInRadians * 0.5f);
LightAngleScale = 1.0f / Math.Max(0.001f, cosInner - cosOuter);
LightAngleOffset = -cosOuter * LightAngleScale;
LightRadiusAtTarget = (float)Math.Abs(Range * Math.Sin(AngleOuterInRadians * 0.5f));
return true;
}
public static async Task AnimateLight(EngineContext engineContext, int index, LightComponent lightComponent)
{
// Wait different time for each light
await TaskEx.Delay(index * 20);
var startIntensity = lightComponent.Intensity;
// Turn light off
var startTime = DateTime.UtcNow;
while (true)
{
await engineContext.Scheduler.NextFrame();
var elapsedTime = (DateTime.UtcNow - startTime).Seconds * 0.2f;
if (elapsedTime > 1.0f)
break;
lightComponent.Intensity = startIntensity * (1.0f - elapsedTime);
}
// Turn light on
lightComponent.Intensity = startIntensity;
}
public override bool Update(LightComponent lightComponent)
{
return true;
}
private LightComponentCollectionGroup GetLightGroup(RenderViewLightData renderViewData, LightComponent light)
{
LightComponentCollectionGroup lightGroup;
var directLight = light.Type as IDirectLight;
var lightGroups = renderViewData.ActiveLightGroups;
var type = light.Type.GetType();
if (!lightGroups.TryGetValue(type, out lightGroup))
{
lightGroup = new LightComponentCollectionGroup(type);
lightGroups.Add(type, lightGroup);
}
return lightGroup;
}
public override bool Update(LightComponent lightComponent)
{
var range = Math.Max(0.001f, Radius);
InvSquareRadius = 1.0f / (range * range);
return true;
}
public bool Update(LightComponent lightComponent)
{
SkyMatrix = Matrix.RotationQuaternion(lightComponent.Entity.Transform.Rotation);
SkyboxComponent = lightComponent.Entity.Get<SkyboxComponent>();
return SkyboxComponent != null && SkyboxComponent.Skybox != null;
}
public LightEntry(int currentLightGroupIndex, int currentLightGroupIndexNoShadows, LightComponent light, LightShadowMapTexture shadow)
{
GroupIndex = currentLightGroupIndex;
GroupIndexNoShadows = currentLightGroupIndexNoShadows;
Light = light;
Shadow = shadow;
}
private LightComponentCollectionGroup GetLightGroup(LightComponent light)
{
LightComponentCollectionGroup lightGroup;
var directLight = light.Type as IDirectLight;
var lightGroups = directLight != null && directLight.Shadow.Enabled && shadowMapRenderer != null
? activeLightGroupsWithShadows
: activeLightGroups;
var type = light.Type.GetType();
if (!lightGroups.TryGetValue(type, out lightGroup))
{
lightGroup = new LightComponentCollectionGroup();
lightGroups.Add(type, lightGroup);
}
return lightGroup;
}
private static string GetButtonTextOnOffLight(LightComponent component)
{
return component.Entity.Name + ": " + (component.Enabled ? "On" : "Off");
}
private static string GetButtonTextOnOffShadow(LightComponent component)
{
var isEnabled = component.Type is IDirectLight && ((IDirectLight)component.Type).Shadow.Enabled;
return "Shadow: " + (isEnabled ? "On" : "Off");
}
// Create a button that can toggle on/off the light shadow map
private Button CreateShadowButton(UIElement parentButton, LightComponent component)
{
var button = new Button
{
Margin = new Thickness(20, 5, 5, 5),
Name = "Shadow Button " + component.Entity.Name,
Opacity = component.Enabled ? 1.0f : 0.3f,
CanBeHitByUser = component.Enabled,
Content = new TextBlock
{
Font = Font,
TextAlignment = TextAlignment.Right,
Text = GetButtonTextOnOffShadow(component),
},
};
button.Click += ToggleShadowMap;
button.DependencyProperties.Set(LightKey, component);
parentButton.DependencyProperties.Set(ShadowButtonKey, button);
return button;
}
// Create a button that can toggle on/off the Light component
private Button CreateLightButton(LightComponent component)
{
var button = new Button
{
Name = component.Entity.Name,
Margin = Thickness.UniformRectangle(5),
Content = new TextBlock
{
Font = Font,
TextAlignment = TextAlignment.Right,
Text = GetButtonTextOnOffLight(component),
},
};
button.Click += ToggleLight;
button.DependencyProperties.Set(LightKey, component);
return button;
}
/// <summary>
/// Try to add light to this group (returns false if not possible).
/// </summary>
/// <param name="light"></param>
/// <param name="shadowMapTexture"></param>
/// <returns></returns>
public bool AddLight(LightComponent light, LightShadowMapTexture shadowMapTexture)
{
Lights.Add(new LightDynamicEntry(light, shadowMapTexture));
return true;
}
public abstract bool Update(LightComponent lightComponent);
public LightDynamicEntry(LightComponent light, LightShadowMapTexture shadowMapTexture)
{
Light = light;
ShadowMapTexture = shadowMapTexture;
}
public void Initialize(LightComponent lightComponent, IDirectLight light, LightShadowMap shadowMap, int size, ILightShadowMapRenderer renderer)
{
if (lightComponent == null) throw new ArgumentNullException("lightComponent");
if (light == null) throw new ArgumentNullException("light");
if (shadowMap == null) throw new ArgumentNullException("shadowMap");
if (renderer == null) throw new ArgumentNullException("renderer");
LightComponent = lightComponent;
Light = light;
Shadow = shadowMap;
Size = size;
FilterType = Shadow.Filter == null || !Shadow.Filter.RequiresCustomBuffer() ? null : Shadow.Filter.GetType();
Renderer = renderer;
Atlas = null; // Reset the atlas, It will be setup after
ShadowType = renderer.GetShadowType(Shadow);
}