private void RenderMedia(ParticipatingMediaComponent media, CascadedShadowMapComponent shadowMap, PerspectiveCamera camera)
{
this.Device.SetRenderTarget(media.ParticipatingMediaBuffer);
this.Device.Clear(ClearOptions.Target, Color.Black, 1.0f, 0);
this.MediaEffect.Noise = this.Noise;
this.MediaEffect.NoiseSampler = SamplerState.PointWrap;
this.MediaEffect.VolumeBack = media.VolumeBackBuffer;
this.MediaEffect.VolumeFront = media.VolumeFrontBuffer;
this.MediaEffect.VolumeSampler = SamplerState.LinearClamp;
this.MediaEffect.Depth = this.FrameService.GBuffer.Depth;
this.MediaEffect.GBufferSampler = SamplerState.LinearClamp;
this.MediaEffect.InverseViewProjection = Matrix.Invert(camera.ViewProjection);
this.MediaEffect.CameraPosition = camera.Position;
this.MediaEffect.Strength = media.Strength;
this.MediaEffect.ShadowMap = shadowMap.DepthMapArray;
this.MediaEffect.ShadowSampler = ShadowMapSampler.State;
this.MediaEffect.ShadowMatrix = shadowMap.GlobalShadowMatrix;
this.MediaEffect.Splits = shadowMap.Splits;
this.MediaEffect.Offsets = shadowMap.Offsets;
this.MediaEffect.Scales = shadowMap.Scales;
this.MediaEffect.ViewDistance = camera.FarPlane;
this.MediaEffect.MinLight = 0.1f;
this.MediaEffect.Apply();
this.PostProcessTriangle.Render(this.Device);
}
private void RenderDensity(ParticipatingMediaComponent media, TransformComponent transform, PerspectiveCamera camera)
{
this.ShadowMapEffect.WorldViewProjection = transform.Matrix * camera.ViewProjection;
this.ShadowMapEffect.Albedo = this.Albedo;
this.ShadowMapEffect.MaskSampler = SamplerState.AnisotropicWrap;
this.RenderDistance(this.BackRasterizerState, media.VolumeBackBuffer, media.Geometry);
this.RenderDistance(this.FrontRasterizerState, media.VolumeFrontBuffer, media.Geometry);
}
public void Process(ParticipatingMediaComponent media, TransformComponent transform)
{
var shadowMap = this.FrameService.ShadowMap;
var sunlight = this.FrameService.Sunlight;
var camera = this.FrameService.CameraComponent.Camera;
this.RenderDensity(media, transform, camera);
this.RenderMedia(media, shadowMap, camera);
this.RenderMediaToLightTarget(media, sunlight);
}
public (ParticipatingMediaComponent, TransformComponent) Create(int resolutionWidth, int resolutionHeight)
{
var entity = this.Entities.Create();
var cube = CubeGenerator.Generate(this.Device);
var participatingMedia = ParticipatingMediaComponent.Create(entity, this.Device, cube, resolutionWidth, resolutionHeight, 1.0f, Color.White);
var transform = new TransformComponent(entity);
this.Components.Add(participatingMedia);
this.Components.Add(transform);
return(participatingMedia, transform);
}
private void RenderMediaToLightTarget(ParticipatingMediaComponent media, SunlightComponent sunlight)
{
this.Device.SetRenderTarget(this.FrameService.LBuffer.Light);
this.Device.BlendState = BlendState.AlphaBlend;
this.PostProcessEffect.Media = media.ParticipatingMediaBuffer;
this.PostProcessEffect.MediaColor = media.Color.ToVector3();
this.PostProcessEffect.LightColor = sunlight.Color.ToVector3();
this.PostProcessEffect.LightInfluence = media.LightInfluence;
this.PostProcessEffect.DitherPattern = this.DitherPattern;
this.PostProcessEffect.DitherPatternSampler = SamplerState.PointWrap;
this.PostProcessEffect.ScreenDimensions = new Vector2(this.FrameService.LBuffer.Light.Width, this.FrameService.LBuffer.Light.Height);
this.PostProcessEffect.Apply();
this.PostProcessTriangle.Render(this.Device);
}