//NEW CODE
protected override void Initialise()
{
//draw targets usually need a camera.
Camera3D camera = new Camera3D();
//look at the sphere, which will be at 0,0,0
camera.LookAt(Vector3.Zero, new Vector3(0, 0, 4), Vector3.UnitY);
//create the draw target texture in the same way the DrawSphere sample created the draw target screen
//creates a 128x128 texture (the pixelation should be visible)
drawToTexture = new DrawTargetTexture2D(camera, 128, 128, SurfaceFormat.Color, DepthFormat.Depth24Stencil8);
//make the texture clear colour different from the screen, so it's more obvious
drawToTexture.ClearBuffer.ClearColour = Color.WhiteSmoke;
//create the sphere (reused from Tutorial_03)
Tutorial_03.SphereDrawer sphere = new Tutorial_03.SphereDrawer(Vector3.Zero);
//Note, the sphere is added to the drawToTexture, not the drawToScreen
drawToTexture.Add(sphere);
//now, create the drawToScreen object..
//The same camera is being used, although it doesn't have to be.
//The 2D element helper class that will be used will automatically push it's own 2D Camera when
//drawing, to keep itself consistent.
drawToScreen = new DrawTargetScreen(this, camera);
drawToScreen.ClearBuffer.ClearColour = Color.CornflowerBlue;
Vector2 sizeInPixels = new Vector2(512, 512);
//Now create a 2D helper element that will display the texture on screen
Xen.Ex.Graphics2D.TexturedElement displayTexture = null;
//this helper class can directly take a DrawTargetTexture2D as a texture parameter.
//This saves some effort here.
//drawToTexture's Texture2D can be accessed with drawToTexture.GetTexture(),
//in a similar way to XNA render targets.
//However, at this point, drawToTexture.GetTexture() will be null - as the draw
//target has yet to be drawn to.
//drawToTexture.Warm() can be called, which will create the resources now.
//However calling Warm() doesn't totally solve the problem because the texture
//will change when content needs reloading (this happens after a device reset, etc)
//The 2D helper element takes care of this itself.
//Content loading/reloading and dealing with GetTexture() will be covered in the next example.
//for now, the helper class will handle things.
displayTexture = new TexturedElement(drawToTexture, sizeInPixels);
//add it to the screen
drawToScreen.Add(displayTexture);
}
//NEW CODE
protected override void Initialise()
{
//draw targets usually need a camera.
var camera = new Camera3D();
//look at the sphere, which will be at 0,0,0
camera.LookAt(Vector3.Zero, new Vector3(0, 0, 4), Vector3.UnitY);
//create the draw target texture in the same way the DrawSphere sample created the draw target screen
//creates a 128x128 texture (the pixelation should be visible)
drawToTexture = new DrawTargetTexture2D(camera, 128, 128, SurfaceFormat.Color, DepthFormat.Depth24Stencil8);
//make the texture clear colour different from the screen, so it's more obvious
drawToTexture.ClearBuffer.ClearColour = Color.WhiteSmoke;
//create the sphere (reused from Tutorial_03)
var sphere = new Tutorial_03.SphereDrawer(Vector3.Zero);
//Note, the sphere is added to the texture, not the screen
drawToTexture.Add(sphere);
//now, create the drawToScreen object..
//The same camera is being used, although it doesn't have to be.
drawToScreen = new DrawTargetScreen(camera);
drawToScreen.ClearBuffer.ClearColour = Color.CornflowerBlue;
var sizeInPixels = new Vector2(512,512);
//Now create a 2D helper element that will display the texture on screen
Xen.Ex.Graphics2D.TexturedElement displayTexture = null;
//this helper class can directly take a DrawTargetTexture2D as a constructor parameter.
//drawToTexture's Texture2D can be accessed with drawToTexture.GetTexture(),
//However, at this point, drawToTexture.GetTexture() will be null - as the draw
//target has yet to be drawn to.
//drawToTexture.Warm() can be called, which will create the resources now.
//However calling Warm() doesn't totally solve the problem because the texture
//will change when content needs reloading (this happens after a device reset, etc)
//The 2D helper element takes care of this itself.
//Content loading/reloading and dealing with GetTexture() will be covered in the next example.
//for now, the helper class will handle things.
//create the 2D helper element, which will display the texture on the screen.
displayTexture = new TexturedElement(drawToTexture, sizeInPixels);
//add it to the screen
drawToScreen.Add(displayTexture);
}
