private void DoComposite()
{
Rectangle screenRect = new Rectangle(0, 0, GraphicsDevice.Viewport.Width, GraphicsDevice.Viewport.Height);
SpriteBatch spriteBatch = new SpriteBatch(GraphicsDevice);
if (DEFERRED_RENDERING)
{
//GraphicsDevice.SetRenderTargets(Game1.RENDER_BUFFER);
Matrixd projection = Matrixd.CreatePerspectiveFieldOfView(Math.PI / 4, GraphicsDevice.Viewport.AspectRatio, 0.5, 2);
GlobalContent.SSAOShader.Parameters["PixelSize"].SetValue(new Vector2(1.0f / GraphicsDevice.Viewport.Width, 2.0f / GraphicsDevice.Viewport.Height));
//GlobalContent.SSAOShader.Parameters["Projection"].SetValue(projection.toMatrix());
//GlobalContent.SSAOShader.Parameters["InverseProjection"].SetValue(Matrixd.Invert(projection).toMatrix());
Vector4[] randomOffsets = new Vector4[32];
Random rand = new Random(12345);
for (int i = 0; i < 32; i++)
{
randomOffsets[i] = new Vector4((float)rand.NextDouble() * 2 - 1, (float)rand.NextDouble() * 2 - 1, -(float)rand.NextDouble(), 0);
randomOffsets[i].Normalize();
randomOffsets[i] = randomOffsets[i] * (float)rand.NextDouble();
}
GlobalContent.SSAOShader.Parameters["offsets"].SetValue(randomOffsets);
float distance = 9 * (float)Math.Pow(0.5, Game1.camera.cameraZoom);
#if WINDOWS
GlobalContent.SSAOShader.Parameters["AlbedoTexture"].SetValue(Game1.G_BUFFER[2].RenderTarget);
GlobalContent.SSAOShader.Parameters["NormalTexture"].SetValue(Game1.G_BUFFER[1].RenderTarget);
GlobalContent.SSAOShader.Parameters["PositionTexture"].SetValue(Game1.G_BUFFER[0].RenderTarget);
#else
GlobalContent.SSAOShader.Parameters["PNATexture"].SetValue(Game1.G_BUFFER[0].RenderTarget);
#endif
DrawSquare(GraphicsDevice, GlobalContent.SSAOShader);
GraphicsDevice.SetRenderTarget(null);
spriteBatch.Begin();
spriteBatch.Draw((Texture2D)Game1.RENDER_BUFFER[0].RenderTarget, screenRect, Color.White);
spriteBatch.End();
}
else
{
GraphicsDevice.SetRenderTarget(null);
spriteBatch.Begin();
spriteBatch.Draw((Texture2D)Game1.RENDER_BUFFER[0].RenderTarget, screenRect, Color.White);
spriteBatch.End();
}
}
internal static Matrixd GetWorldProjectiond(double distance, double aspectRatio)
{
switch (MODE)
{
case 0:
return(Matrixd.CreatePerspectiveFieldOfView(Math.PI / 2, aspectRatio, distance * 0.1f, distance * 100));
case 1:
distance *= M_1;
return(Matrixd.CreatePerspectiveFieldOfView(Math.PI / 4, aspectRatio, distance * 0.5f, distance * 2));
case 2:
distance *= M_2;
return(Matrixd.CreateOrthographicOffCenter(-0.2 * distance * aspectRatio, 0.2 * distance * aspectRatio, -0.2 * distance, 0.2 * distance, distance * 0.1, distance * 100));
case 3:
return(Matrixd.CreatePerspectiveFieldOfView(Math.PI * 80 / 180, aspectRatio, distance * 0.1f, distance * 100));
}
throw new NotImplementedException();
}