public virtual void Begin()
{
CCDrawManager drawManager = CCDrawManager.SharedDrawManager;
// Save the current matrix
drawManager.PushMatrix();
CCSize texSize = Texture.ContentSizeInPixels;
CCSize size = Scene.Viewport.ViewportInPixels.Size;
float widthRatio = size.Width / texSize.Width;
float heightRatio = size.Height / texSize.Height;
Matrix projection = Matrix.CreateOrthographicOffCenter(
-1.0f / widthRatio, 1.0f / widthRatio,
-1.0f / heightRatio, 1.0f / heightRatio,
-1, 1
);
drawManager.MultMatrix(ref projection);
drawManager.SetRenderTarget(Texture);
if (firstUsage)
{
drawManager.Clear(CCColor4B.Transparent);
firstUsage = false;
}
}
internal void RenderCustomCommand(CCDrawManager drawManager)
{
bool originalDepthTestState = drawManager.DepthTest;
drawManager.DepthTest = UsingDepthTest;
drawManager.PushMatrix();
drawManager.SetIdentityMatrix();
if (WorldTransform != CCAffineTransform.Identity)
{
var worldTrans = WorldTransform.XnaMatrix;
drawManager.MultMatrix(ref worldTrans);
}
Action();
drawManager.PopMatrix();
drawManager.DepthTest = originalDepthTestState;
}