/// <summary>
/// Activate the black and white filter for a given player.
/// Important: parameters about duration are set in the shader-initialization.
/// </summary>
/// <param name="playerId">Id of the player to apply the shader</param>
public void ActivateBlackAndWhite(int playerId)
{
PostProcessingEffect ppEffect = _fixEffects[PostprocessingType.BlackAndWhite];
ppEffect.Activate(playerId, true);
ppEffect.SetParameterForPlayer(playerId, "startTime", Time.CurrentTime);
}
/// <summary>
/// Activate the shockwave filter for a given player.
/// Important: parameters about duration are set in the shader-initialization.
/// </summary>
/// <param name="position">3D-space coordinate of the position for the shockwave</param>
/// <param name="animationLength">Length of the animation for the shockwave to go over the whole screen</param>
/// <param name="deactivate">Deactivate the shader after <paramref name="deactivateAfter"/></param>
/// <param name="deactivateAfter">If <paramref name="deactivate"/> is set to true, after this many seconds the effect is disabled for this player-id.</param>
public void ActivateShockWave(Vector3 position, float animationLength = 0.6f, bool deactivate = true, float deactivateAfter = 5.0f)
{
PostProcessingEffect ppEffect = new PostProcessingEffect(PostprocessingType.ShockWave, false, _loadedEffects[PostprocessingType.ShockWave], position);
for (int playerId = 0; playerId < GameManager.NumPlayers; ++playerId)
{
Vector2 screenPosition = Screen.Cameras[playerId].WorldToScreenPoint01(position);
ppEffect.Activate(playerId, true);
ppEffect.SetParameterForPlayer(playerId, "startTime", Time.CurrentTime);
ppEffect.SetParameterForPlayer(playerId, "centerCoord", screenPosition);
ppEffect.SetParameterForPlayer(playerId, "animationLength", animationLength);
ppEffect.SetParameter("shockParams", new Vector3(10.0f, 0.8f, 0.1f));
}
_effects.Add(ppEffect);
if (deactivate)
{
// ReSharper disable once ObjectCreationAsStatement
new Timer(deactivateAfter, () => DectivateShader(ppEffect.Id));
}
}
private PostProcessingManager(List <PostprocessingType> initialized)
{
foreach (PostprocessingType pType in Enum.GetValues(typeof(PostprocessingType)))
{
string fileName = pType.ToString();
_loadedEffects[pType] = File.Load <Effect>("Other/effects/" + fileName);
}
foreach (PostprocessingType pType in initialized)
{
PostProcessingEffect ppEffect = new PostProcessingEffect(pType, false, _loadedEffects[pType]);
_fixEffects[pType] = ppEffect;
ppEffect.SetParameter("players", GameManager.NumPlayers);
// Special parameters for some effects
switch (pType)
{
case PostprocessingType.BlackAndWhite:
ppEffect.SetParameter("durationFadeIn", 0.1f);
ppEffect.SetParameter("durationFadeOut", 1.9f);
ppEffect.SetParameter("max", 1.0f);
ppEffect.SetParameter("min", 0.1f);
break;
case PostprocessingType.GaussianBlur:
ppEffect.SetParameter("screenSize", new Vector2(Screen.Width, Screen.Height));
break;
case PostprocessingType.TwoPassBlur:
ppEffect.SetParameter("screenSize", new Vector2(Screen.Width, Screen.Height));
break;
case PostprocessingType.DepthOfField:
float nearClip = Camera.Near;
float farClip = Camera.FarDepth;
farClip = farClip / (farClip - nearClip);
ppEffect.SetParameter("Distance", Distance);
ppEffect.SetParameter("Range", Range);
ppEffect.SetParameter("Near", nearClip);
ppEffect.SetParameter("Far", farClip);
PostProcessingEffect ppBlur = new PostProcessingEffect(PostprocessingType.TwoPassBlur, false, _loadedEffects[PostprocessingType.TwoPassBlur]);
ppBlur.SetParameter("players", GameManager.NumPlayers);
ppBlur.SetParameter("screenSize", new Vector2(Screen.Width, Screen.Height));
ppBlur.SetParameter("active", new Vector4(1, 1, 1, 1));
for (var i = 0; i < GameManager.NumPlayers; i++)
{
ppEffect.Activate(i, true);
ppBlur.Activate(i, true);
}
_twoPassEffect = ppBlur;
break;
case PostprocessingType.Chromatic:
for (var i = 0; i < GameManager.NumPlayers; i++)
{
ppEffect.Activate(i, true);
}
break;
case PostprocessingType.Vignette:
for (var i = 0; i < GameManager.NumPlayers; i++)
{
ppEffect.Activate(i, true);
}
break;
case PostprocessingType.ColorGrading:
ppEffect.SetParameter("Size", 16f);
ppEffect.SetParameter("SizeRoot", 4f);
ppEffect.SetParameter("LUT", File.Load <Texture2D>("Images/lut/lut"));
for (var i = 0; i < GameManager.NumPlayers; i++)
{
ppEffect.Activate(i, true);
}
break;
case PostprocessingType.ShockWave:
ppEffect.SetParameter("centerCoord", new Vector2(0.5f, 0.5f));
ppEffect.SetParameter("shockParams", new Vector3(10.0f, 0.8f, 0.1f));
break;
case PostprocessingType.Wave:
ppEffect.SetParameter("centerCoord", new Vector2(0.5f, 0.5f));
ppEffect.SetParameter("shockParams", new Vector3(10.0f, 0.8f, 0.1f));
break;
}
_effects.Add(ppEffect);
}
}
/// <summary>
/// Apply all postprocessing-effects on the 3D-rendered output
/// </summary>
/// <param name="spriteBatch"></param>
public void Draw(SpriteBatch spriteBatch)
{
RenderTarget2D curTarget = SceneTarget;
int targetI = 0;
// if dynamic props are needed
foreach (var ppShader in _effects)
{
if (ppShader.IsActive())
{
ppShader.SetParameter("active", ppShader.ActiveParameter);
ppShader.SetParameter("time", Time.CurrentTime);
switch (ppShader.Type)
{
case PostprocessingType.DepthOfField:
RenderTarget2D curBlurTarget = SceneTarget;
// get the gaussian blur shader
PostProcessingEffect blurShader = _twoPassEffect;
blurShader.SetParameter("active", new Vector4(1, 1, 1, 1));
foreach (EffectPass pass in blurShader.Effect.CurrentTechnique.Passes)
{
// Setup next render-target to apply next filter
RenderTarget2D nextTarget = (targetI++ % 2 == 0) ? _blurTarget1 : _blurTarget2;
Graphics.gD.SetRenderTarget(nextTarget);
// apply post processing shader
SpriteBatchBegin(ref spriteBatch);
pass.Apply();
spriteBatch.Draw(curBlurTarget, new Rectangle(0, 0, Screen.Width, Screen.Height), Color.White);
SpriteBatchEnd(ref spriteBatch);
Graphics.gD.SetRenderTarget(null);
curBlurTarget = nextTarget;
}
// apply post processing shader
Graphics.gD.SetRenderTarget(null);
SpriteBatchBegin(ref spriteBatch);
spriteBatch.Draw(curBlurTarget, new Rectangle(0, 0, Screen.Width, Screen.Height), Color.White);
SpriteBatchEnd(ref spriteBatch);
// set the blurred scene and the depth map as parameter
ppShader.SetParameter("BlurScene", curBlurTarget);
ppShader.SetParameter("DepthTexture", DepthTarget);
//ppShader.SetParameter("Range", Range);
//ppShader.SetParameter("Distance", Distance);
break;
case PostprocessingType.ShockWave:
for (int playerId = 0; playerId < GameManager.NumPlayers; ++playerId)
{
Vector2 screenPosition = Screen.Cameras[playerId].WorldToScreenPoint01(ppShader.Position);
ppShader.SetParameterForPlayer(playerId, "centerCoord", screenPosition);
}
break;
case PostprocessingType.Wave:
for (int playerId = 0; playerId < GameManager.NumPlayers; ++playerId)
{
Vector2 screenPosition = Screen.Cameras[playerId].WorldToScreenPoint01(ppShader.Position);
float distance = (ppShader.Position - Screen.Cameras[playerId].transform.position).Length();
ppShader.SetParameterForPlayer(playerId, "centerCoord", screenPosition);
ppShader.SetParameterForPlayer(playerId, "cameraDistance", distance);
}
break;
}
foreach (EffectPass pass in ppShader.Effect.CurrentTechnique.Passes)
{
// Setup next render-target to apply next filter
RenderTarget2D nextTarget = (targetI++ % 2 == 0) ? _renderTarget1 : _renderTarget2;
Graphics.gD.SetRenderTarget(nextTarget);
// apply post processing shader
SpriteBatchBegin(ref spriteBatch);
pass.Apply();
spriteBatch.Draw(curTarget, new Rectangle(0, 0, Screen.Width, Screen.Height), Color.White);
SpriteBatchEnd(ref spriteBatch);
Graphics.gD.SetRenderTarget(null);
curTarget = nextTarget;
}
}
}
// draw to screen
Graphics.gD.SetRenderTarget(null);
SpriteBatchBegin(ref spriteBatch);
spriteBatch.Draw(curTarget, new Rectangle(0, 0, Screen.Width, Screen.Height), Color.White);
SpriteBatchEnd(ref spriteBatch);
}