} // Start()
#endregion
#region Show
/// <summary>
/// Execute shaders and show result on screen, Start(..) must have been
/// called before and the scene should be rendered to sceneMapTexture.
/// </summary>
public void Show()
{
// Only apply post screen glow if texture is valid and effect is valid
if (sceneMapTexture == null ||
Valid == false ||
started == false)
{
return;
}
started = false;
// Resolve sceneMapTexture render target for Xbox360 support
sceneMapTexture.Resolve(true);
try
{
// Don't use or write to the z buffer
BaseGame.Device.RenderState.DepthBufferEnable = false;
BaseGame.Device.RenderState.DepthBufferWriteEnable = false;
// Also don't use any kind of blending.
BaseGame.Device.RenderState.AlphaBlendEnable = false;
//unused: BaseGame.Device.RenderState.Lighting = false;
if (windowSize != null)
{
windowSize.SetValue(new float[]
{ sceneMapTexture.Width, sceneMapTexture.Height });
}
if (sceneMap != null)
{
sceneMap.SetValue(sceneMapTexture.XnaTexture);
}
if (downsampleMap != null)
{
downsampleMap.SetValue(downsampleMapTexture.XnaTexture);
}
if (blurMap1 != null)
{
blurMap1.SetValue(blurMap1Texture.XnaTexture);
}
if (blurMap2 != null)
{
blurMap2.SetValue(blurMap2Texture.XnaTexture);
}
if (radialSceneMap != null)
{
radialSceneMap.SetValue(radialSceneMapTexture.XnaTexture);
}
RadialBlurScaleFactor = //-0.0125f;
// Warning: To big values will make the motion blur look to
// stepy (we see each step and thats not good). -0.02 should be max.
-(0.005f + Player.Speed * 0.015f);
if (BaseGame.UsePS20)
{
effect.CurrentTechnique = effect.Techniques["ScreenGlow20"];
}
else
{
effect.CurrentTechnique = effect.Techniques["ScreenGlow"];
}
// We must have exactly 5 passes!
if (effect.CurrentTechnique.Passes.Count != 5)
{
throw new Exception("This shader should have exactly 5 passes!");
}
effect.Begin(); //SaveStateMode.None);
for (int pass = 0; pass < effect.CurrentTechnique.Passes.Count;
pass++)
{
if (pass == 0)
{
radialSceneMapTexture.SetRenderTarget();
}
else if (pass == 1)
{
downsampleMapTexture.SetRenderTarget();
}
else if (pass == 2)
{
blurMap1Texture.SetRenderTarget();
}
else if (pass == 3)
{
blurMap2Texture.SetRenderTarget();
}
else
{
// Do a full reset back to the back buffer
RenderToTexture.ResetRenderTarget(true);
}
EffectPass effectPass = effect.CurrentTechnique.Passes[pass];
effectPass.Begin();
// For first effect we use radial blur, draw it with a grid
// to get cooler results (more blur at borders than in middle).
if (pass == 0)
{
VBScreenHelper.Render10x10Grid();
}
else
{
VBScreenHelper.Render();
}
effectPass.End();
if (pass == 0)
{
radialSceneMapTexture.Resolve(false);
if (radialSceneMap != null)
{
radialSceneMap.SetValue(radialSceneMapTexture.XnaTexture);
}
effect.CommitChanges();
} // if
else if (pass == 1)
{
downsampleMapTexture.Resolve(false);
if (downsampleMap != null)
{
downsampleMap.SetValue(downsampleMapTexture.XnaTexture);
}
effect.CommitChanges();
} // if
else if (pass == 2)
{
blurMap1Texture.Resolve(false);
if (blurMap1 != null)
{
blurMap1.SetValue(blurMap1Texture.XnaTexture);
}
effect.CommitChanges();
} // else if
else if (pass == 3)
{
blurMap2Texture.Resolve(false);
if (blurMap2 != null)
{
blurMap2.SetValue(blurMap2Texture.XnaTexture);
}
effect.CommitChanges();
} // else if
} // for (pass, <, ++)
} // try
catch (Exception ex)
{
// Make effect invalid, continue rendering without this
// post screen shader.
effect = null;
RenderToTexture.ResetRenderTarget(true);
#if DEBUG
throw ex;
#else
Log.Write("Failed to render post screen shader " + Filename + ": " +
ex.ToString());
#endif
} // catch
finally
{
if (effect != null)
{
effect.End();
}
// Restore z buffer state
BaseGame.Device.RenderState.DepthBufferEnable = true;
BaseGame.Device.RenderState.DepthBufferWriteEnable = true;
} // finally
} // Show()
//*/
/// <summary>
/// Test create render to texture
/// </summary>
public static void TestCreateRenderToTexture()
{
Model testModel = null;
RenderToTexture renderToTexture = null;
TestGame.Start(
"TestCreateRenderToTexture",
delegate
{
testModel = new Model("asteroid1");
renderToTexture = new RenderToTexture(
//SizeType.QuarterScreen);
SizeType.HalfScreen);
//SizeType.HalfScreenWithZBuffer);
//SizeType.FullScreen);
//SizeType.ShadowMap);
},
delegate
{
bool renderToTextureWay =
Input.Keyboard.IsKeyUp(Keys.Space) &&
Input.GamePadAPressed == false;
BaseGame.Device.RenderState.DepthBufferEnable = true;
if (renderToTextureWay)
{
// Set render target to our texture
renderToTexture.SetRenderTarget();
// Clear background
renderToTexture.Clear(Color.Blue);
// Draw background lines
//Line.DrawGrid();
//Ui.LineManager.RenderAll3DLines();
// And draw object
testModel.Render(Matrix.CreateScale(7.5f));
//BaseGame.RenderManager.RenderAllMeshes();
// Do we need to resolve?
renderToTexture.Resolve(true);
//BaseGame.Device.ResolveRenderTarget(0);
// Reset background buffer
//not longer required, done in Resolve now:
//RenderToTexture.ResetRenderTarget(true);
} // if (renderToTextureWay)
else
{
// Copy backbuffer way, render stuff normally first
// Clear background
BaseGame.Device.Clear(Color.Blue);
// Draw background lines
//Line.DrawGrid();
//Ui.LineManager.RenderAll3DLines();
// And draw object
testModel.Render(Matrix.CreateScale(7.5f));
//BaseGame.RenderManager.RenderAllMeshes();
} // else
// Show render target in a rectangle on our screen
renderToTexture.RenderOnScreen(
//tst:
new Rectangle(100, 100, 256, 256));
//BaseGame.ScreenRectangle);
//no need: BaseGame.UI.FlushUI();
TextureFont.WriteText(2, 0,
" Press Space to toogle full screen rendering");
TextureFont.WriteText(2, 30,
"renderToTexture.Width=" + renderToTexture.Width);
TextureFont.WriteText(2, 60,
"renderToTexture.Height=" + renderToTexture.Height);
TextureFont.WriteText(2, 90,
"renderToTexture.Valid=" + renderToTexture.IsValid);
TextureFont.WriteText(2, 120,
"renderToTexture.XnaTexture=" + renderToTexture.XnaTexture);
TextureFont.WriteText(2, 150,
"renderToTexture.ZBufferSurface=" + renderToTexture.ZBufferSurface);
TextureFont.WriteText(2, 180,
"renderToTexture.Filename=" + renderToTexture.Filename);
});
}
} // ResetRenderTarget(fullResetToBackBuffer)
#endregion
#region Unit Testing
#if DEBUG
/// <summary>
/// Test create render to texture
/// </summary>
static public void TestCreateRenderToTexture()
{
Model testModel = null;
RenderToTexture renderToTexture = null;
TestGame.Start(
"TestCreateRenderToTexture",
delegate
{
testModel = new Model("asteroid1");
renderToTexture = new RenderToTexture(
//SizeType.QuarterScreen);
SizeType.HalfScreen);
//SizeType.HalfScreenWithZBuffer);
//SizeType.FullScreen);
//SizeType.ShadowMap);
},
delegate
{
bool renderToTextureWay =
Input.Keyboard.IsKeyUp(Keys.Space) &&
Input.GamePadAPressed == false;
BaseGame.Device.RenderState.DepthBufferEnable = true;
if (renderToTextureWay)
{
// Set render target to our texture
renderToTexture.SetRenderTarget();
// Clear background
renderToTexture.Clear(Color.Blue);
// Draw background lines
//Line.DrawGrid();
//Ui.LineManager.RenderAll3DLines();
// And draw object
testModel.Render(Matrix.CreateScale(7.5f));
//BaseGame.RenderManager.RenderAllMeshes();
// Do we need to resolve?
renderToTexture.Resolve(true);
//BaseGame.Device.ResolveRenderTarget(0);
// Reset background buffer
//not longer required, done in Resolve now:
//RenderToTexture.ResetRenderTarget(true);
} // if (renderToTextureWay)
else
{
// Copy backbuffer way, render stuff normally first
// Clear background
BaseGame.Device.Clear(Color.Blue);
// Draw background lines
//Line.DrawGrid();
//Ui.LineManager.RenderAll3DLines();
// And draw object
testModel.Render(Matrix.CreateScale(7.5f));
//BaseGame.RenderManager.RenderAllMeshes();
} // else
// Show render target in a rectangle on our screen
renderToTexture.RenderOnScreen(
//tst:
new Rectangle(100, 100, 256, 256));
//BaseGame.ScreenRectangle);
//no need: BaseGame.UI.FlushUI();
TextureFont.WriteText(2, 0,
" Press Space to toogle full screen rendering");
TextureFont.WriteText(2, 30,
"renderToTexture.Width=" + renderToTexture.Width);
TextureFont.WriteText(2, 60,
"renderToTexture.Height=" + renderToTexture.Height);
TextureFont.WriteText(2, 90,
"renderToTexture.Valid=" + renderToTexture.IsValid);
TextureFont.WriteText(2, 120,
"renderToTexture.XnaTexture=" + renderToTexture.XnaTexture);
TextureFont.WriteText(2, 150,
"renderToTexture.ZBufferSurface=" + renderToTexture.ZBufferSurface);
TextureFont.WriteText(2, 180,
"renderToTexture.Filename=" + renderToTexture.Filename);
});
} // TestCreateRenderToTexture()