public void DrawRefractionMap(Camera camera, RenderRefractionHandler render)
{
Vector3 planeNormalDirection = new Vector3(0, -1, 0);
planeNormalDirection.Normalize();
Vector4 planeCoefficients = new Vector4(planeNormalDirection, waterHeight);
Matrix camMatrix = camera.View * camera.Projection;
Matrix invCamMatrix = Matrix.Invert(camMatrix);
invCamMatrix = Matrix.Transpose(invCamMatrix);
planeCoefficients = Vector4.Transform(planeCoefficients, invCamMatrix);
Plane refractionClipPlane = new Plane(planeCoefficients);
//device.SetRenderTarget(0, refractionRT);
device.Clear(ClearOptions.Target | ClearOptions.DepthBuffer, Color.Black, 1.0f, 0);
render.Invoke();
refractionMap = refractionRT.GetTexture();
}
public void DrawRefraction(GameTime gameTime, RenderRefractionHandler render)
{
// Create our Refraction Plane
Microsoft.Xna.Framework.Plane refractionPlane = Utilitys.CreatePlane(WaterHeight + 20.0f, Vector3.Down, Camera.View, Camera.Projection, false);
// Setup the graphics Device
GraphicsDevice.SetRenderTarget(rtRefraction); // <- render to our RT
// Clear the back buffer
GraphicsDevice.Clear(ClearOptions.Target | ClearOptions.DepthBuffer, Color.Black, 1.0f, 0);
render.Invoke(gameTime);
// Remove our render target from our device
GraphicsDevice.SetRenderTarget(null);
// Snag our Texture from our RenderTarget
refractionMap = rtRefraction;
// For diag just save it to disk
//refractionMap.Save(AppDomain.CurrentDomain.BaseDirectory + @"\refractionMap.jpg", ImageFileFormat.Jpg);
}
