/// <summary>
/// Allows the game component to draw itself.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Draw(GameTime gameTime)
{
Matrix world = fCamera.Camera.WorldMatrix;
Matrix view = fCamera.Camera.ViewMatrix;
Matrix projection = fCamera.Camera.ProjectionMatrix;
if (!fHalted)
{
fWorldAngle += Convert.ToSingle(gameTime.ElapsedGameTime.TotalSeconds * 0.5f);
}
world = Matrix.CreateRotationY(fWorldAngle);
fPlaneAngle += Convert.ToSingle(gameTime.ElapsedGameTime.TotalSeconds * 2.5f);
CreateRenderTarget(gameTime);
GraphicsDevice.SamplerStates[0] = SamplerState.LinearWrap;
GraphicsDevice.BlendState = BlendState.NonPremultiplied;
GraphicsDevice.DepthStencilState = DepthStencilState.Default;
GraphicsDevice.RasterizerState = RasterizerState.CullNone;
fTargetEffect.View = view;
fTargetEffect.Projection = projection;
fTargetEffect.World = world;
fTargetEffect.Texture = fTarget;
fTargetEffect.CurrentTechnique.Passes[0].Apply();
fBillboard.Render();
base.Draw(gameTime);
}
/// <summary>
/// Render the points
/// </summary>
private void DrawPoints()
{
if (fPoints.Count > 0 && fBillboard != null)
{
GraphicsDevice.BlendState = fBlendState;
GraphicsDevice.DepthStencilState = DepthStencilState.None;
Matrix vp = fCamera.Camera.ViewMatrix * fCamera.Camera.ProjectionMatrix;
fShader.Parameters["world"].SetValue(fCamera.Camera.WorldMatrix);
fShader.Parameters["vp"].SetValue(vp);
fShader.Parameters["particleTexture"].SetValue(fTexture);
for (int ps = 0; ps < fShader.CurrentTechnique.Passes.Count; ps++)
{
fShader.CurrentTechnique.Passes[ps].Apply();
fBillboard.Render();
}
}
}