public void DrawReflectionMap(Camera camera, RenderReflectionHandler render)
{
reflectionViewMatrix = ((FreeCamera)camera).UpdateReflectiveMatrices();
float reflectionCamYCoord = -camera.Position.Y + (waterHeight * 2);
Vector3 reflectionCamPosition = new Vector3(camera.Position.X, reflectionCamYCoord, camera.Position.Z);
Vector3 planeNormalDirection = new Vector3(0, 1, 0);
planeNormalDirection.Normalize();
Vector4 planeCoefficients = new Vector4(planeNormalDirection, -3f);
Matrix camMatrix = reflectionViewMatrix * camera.Projection;
Matrix invCamMatrix = Matrix.Invert(camMatrix);
invCamMatrix = Matrix.Transpose(invCamMatrix);
planeCoefficients = Vector4.Transform(planeCoefficients, invCamMatrix);
Plane refractionClipPlane = new Plane(planeCoefficients);
//device.ClipPlanes[0].Plane = refractionClipPlane;
//device.ClipPlanes[0].IsEnabled = true;
//device.SetRenderTarget(0, reflectionRT);
device.Clear(ClearOptions.Target | ClearOptions.DepthBuffer, Color.Black, 1.0f, 0);
render.Invoke(reflectionViewMatrix, reflectionCamPosition);
device.SetRenderTarget(0, null);
reflectionMap = reflectionRT.GetTexture();
device.ClipPlanes[0].IsEnabled = false;
}
public void DrawReflection(GameTime gameTime, RenderReflectionHandler render)
{
Microsoft.Xna.Framework.Plane reflectionPlane = Utilitys.CreatePlane(WaterHeight - 0.5f, Vector3.Down, ReflectionViewMatrix, Camera.Projection, true);
// Setup the Graphics Device
GraphicsDevice.SetRenderTarget(rtReflection);
// Clear the back buffer
GraphicsDevice.Clear(ClearOptions.Target | ClearOptions.DepthBuffer, Color.Black, 1.0f, 0);
// Draw anything that should reflect onto the water
render.Invoke(ReflectionViewMatrix, Camera.Position, gameTime);
// Remove our render target from our device
GraphicsDevice.SetRenderTarget(null);
// Snag our Texture from our RenderTarget
reflectionMap = rtReflection;
// For diag just save it to disk
//reflectionMap.Save(AppDomain.CurrentDomain.BaseDirectory + @"\reflectionMap.jpg", ImageFileFormat.Jpg);
}
