Game Development Reference
In-Depth Information
7. Now, we need a
Texture2D
class to store the data in, so we create a class called
offScreenTexture
with the same width and height as before and set
MinFilter
to
Trilinear
:
final Texture2D offScreenTexture = new
Texture2D(width, height, Image.Format.RGB8);
offScreenTexture.setMinFilter(Texture.MinFilter.Trilinear);
8. A
FrameBuffer
class is needed as a medium for the data, so we create one
with the same width and height, and
1
sample, as shown in the following code:
FrameBuffer offScreenBuffer = new FrameBuffer(width,
height, 1);
9. We set
DepthBuffer
to be
Image.Format.Depth
and
offScreenTex-
ture
to be
ColorTexture
:
offScreenBuffer.setDepthBuffer(Image.Format.Depth);
offScreenBuffer.setColorTexture(offScreenTexture);
10. Then, we set
outPutFrameBuffer
of
offScreenView
to be
offScreenBuffer
:
offScreenView.setOutputFrameBuffer(offScreenBuffer);
11. Unless the scene we supplied already has some lights, we should add at least one
Light
class to it.
12. Then, we attach the scene to
offScreenView
:
offScreenView.attachScene(scene);
13. To store the texture, we can add it to
AssetManager
with the following line:
((DesktopAssetManager)app.getAssetManager()).addToCache(
new TextureKey(scene.getName()+"_mini.png", true),
offScreenTexture);
14. Now, we can do the actual rendering by calling the application's
renderMan-
ager
and
renderViewPort
methods:
app.getRenderManager().renderViewPort(offScreenView,
0);
