/// <summary>
/// Update per frame data
/// </summary>
/// <param name="context">Drawing context</param>
/// <param name="state">State</param>
public void UpdatePerFrame(
DrawContext context,
EffectBillboardState state)
{
this.World = Matrix.Identity;
this.WorldViewProjection = context.ViewProjection;
this.EyePositionWorld = context.EyePosition;
this.StartRadius = state.StartRadius;
this.EndRadius = state.EndRadius;
this.TextureCount = state.TextureCount;
this.NormalMapCount = state.NormalMapCount;
this.Textures = state.Texture;
this.NormalMaps = state.NormalMaps;
this.MaterialIndex = state.MaterialIndex;
var lights = context.Lights;
if (lights != null)
{
this.HemiLight = BufferLightHemispheric.Build(lights.GetVisibleHemisphericLight());
this.DirLights = BufferLightDirectional.Build(lights.GetVisibleDirectionalLights(), out int dirLength);
this.PointLights = BufferLightPoint.Build(lights.GetVisiblePointLights(), out int pointLength);
this.SpotLights = BufferLightSpot.Build(lights.GetVisibleSpotLights(), out int spotLength);
this.LightCount = new[] { dirLength, pointLength, spotLength };
this.FogStart = lights.FogStart;
this.FogRange = lights.FogRange;
this.FogColor = lights.FogColor;
this.ShadowMapDirectional = context.ShadowMapDirectional?.Texture;
this.ShadowMapPoint = context.ShadowMapPoint?.Texture;
this.ShadowMapSpot = context.ShadowMapSpot?.Texture;
}
else
{
this.HemiLight = BufferLightHemispheric.Default;
this.DirLights = BufferLightDirectional.Default;
this.PointLights = BufferLightPoint.Default;
this.SpotLights = BufferLightSpot.Default;
this.LightCount = new[] { 0, 0, 0 };
this.FogStart = 0;
this.FogRange = 0;
this.FogColor = Color.Transparent;
this.ShadowMapDirectional = null;
this.ShadowMapPoint = null;
this.ShadowMapSpot = null;
}
this.TextureRandom = state.RandomTexture;
}
/// <summary>
/// Update per frame data
/// </summary>
/// <param name="world">World</param>
/// <param name="viewProjection">View * projection</param>
/// <param name="eyePositionWorld">Eye position in world coordinates</param>
/// <param name="lights">Scene ligths</param>
/// <param name="shadowMapDirectional">Low definition shadow map</param>
/// <param name="shadowMapPoint">Point light shadow map</param>
/// <param name="shadowMapSpot">Spot light shadow map</param>
private void UpdatePerFrame(
Matrix world,
Matrix viewProjection,
Vector3 eyePositionWorld,
SceneLights lights,
IShadowMap shadowMapDirectional,
IShadowMap shadowMapPoint,
IShadowMap shadowMapSpot)
{
this.World = world;
this.WorldViewProjection = world * viewProjection;
if (lights != null)
{
this.EyePositionWorld = eyePositionWorld;
this.HemiLight = BufferLightHemispheric.Build(lights.GetVisibleHemisphericLight());
this.DirLights = BufferLightDirectional.Build(lights.GetVisibleDirectionalLights(), out int dirLength);
this.PointLights = BufferLightPoint.Build(lights.GetVisiblePointLights(), out int pointLength);
this.SpotLights = BufferLightSpot.Build(lights.GetVisibleSpotLights(), out int spotLength);
this.LightCount = new[] { dirLength, pointLength, spotLength };
this.FogStart = lights.FogStart;
this.FogRange = lights.FogRange;
this.FogColor = lights.FogColor;
this.ShadowMapDirectional = shadowMapDirectional?.Texture;
this.ShadowMapPoint = shadowMapPoint?.Texture;
this.ShadowMapSpot = shadowMapSpot?.Texture;
}
else
{
this.EyePositionWorld = Vector3.Zero;
this.HemiLight = BufferLightHemispheric.Default;
this.DirLights = BufferLightDirectional.Default;
this.PointLights = BufferLightPoint.Default;
this.SpotLights = BufferLightSpot.Default;
this.LightCount = new[] { 0, 0, 0 };
this.FogStart = 0;
this.FogRange = 0;
this.FogColor = Color.Transparent;
this.ShadowMapDirectional = null;
this.ShadowMapPoint = null;
this.ShadowMapSpot = null;
}
}
/// <summary>
/// Update per frame data
/// </summary>
/// <param name="textureResolution">Texture resolution</param>
/// <param name="context">Drawing context</param>
public void UpdatePerFrame(
float textureResolution,
DrawContext context)
{
this.World = Matrix.Identity;
this.WorldViewProjection = context.ViewProjection;
this.TextureResolution = textureResolution;
var lights = context.Lights;
if (lights != null)
{
this.EyePositionWorld = context.EyePosition;
this.HemiLight = BufferLightHemispheric.Build(lights.GetVisibleHemisphericLight());
this.DirLights = BufferLightDirectional.Build(lights.GetVisibleDirectionalLights(), out int dirLength);
this.PointLights = BufferLightPoint.Build(lights.GetVisiblePointLights(), out int pointLength);
this.SpotLights = BufferLightSpot.Build(lights.GetVisibleSpotLights(), out int spotLength);
this.LightCount = new[] { dirLength, pointLength, spotLength };
this.FogStart = lights.FogStart;
this.FogRange = lights.FogRange;
this.FogColor = lights.FogColor;
this.ShadowMapDirectional = context.ShadowMapDirectional?.Texture;
this.ShadowMapPoint = context.ShadowMapPoint?.Texture;
this.ShadowMapSpot = context.ShadowMapSpot?.Texture;
}
else
{
this.EyePositionWorld = Vector3.Zero;
this.HemiLight = BufferLightHemispheric.Default;
this.DirLights = BufferLightDirectional.Default;
this.PointLights = BufferLightPoint.Default;
this.SpotLights = BufferLightSpot.Default;
this.LightCount = new[] { 0, 0, 0 };
this.FogStart = 0;
this.FogRange = 0;
this.FogColor = Color.Transparent;
this.ShadowMapDirectional = null;
this.ShadowMapPoint = null;
this.ShadowMapSpot = null;
}
}
/// <summary>
/// Builds a light buffer collection
/// </summary>
/// <param name="lights">Light list</param>
/// <param name="lightCount">Returns the assigned light count</param>
/// <returns>Returns a light buffer collection</returns>
public static BufferLightPoint[] Build(IEnumerable <SceneLightPoint> lights, out int lightCount)
{
if (!lights.Any())
{
lightCount = 0;
return(Default);
}
var bPointLights = Default;
var point = lights.ToArray();
for (int i = 0; i < Math.Min(point.Length, MAX); i++)
{
bPointLights[i] = new BufferLightPoint(point[i]);
}
lightCount = Math.Min(point.Length, MAX);
return(bPointLights);
}
