Package com.badlogic.gdx.graphics.glutils

Class FrameBufferCubemap

  • All Implemented Interfaces:
    Disposable
    public class FrameBufferCubemap
extends GLFrameBuffer<Cubemap>

    Encapsulates OpenGL ES 2.0 frame buffer objects. This is a simple helper class which should cover most FBO uses. It will automatically create a cubemap for the color attachment and a renderbuffer for the depth buffer. You can get a hold of the cubemap by GLFrameBuffer.getColorBufferTexture(). This class will only work with OpenGL ES 2.0.

    FrameBuffers are managed. In case of an OpenGL context loss, which only happens on Android when a user switches to another application or receives an incoming call, the framebuffer will be automatically recreated.

    A FrameBuffer must be disposed if it is no longer needed

    Typical use:
    FrameBufferCubemap frameBuffer = new FrameBufferCubemap(Format.RGBA8888, fSize, fSize, true);
    frameBuffer.begin();
    while( frameBuffer.nextSide() ) {
    frameBuffer.getSide().getUp(camera.up);
    frameBuffer.getSide().getDirection(camera.direction);
    camera.update();
    Gdx.gl.glClearColor(0, 0, 0, 1);
    Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT | GL20.GL_DEPTH_BUFFER_BIT);
    modelBatch.begin(camera);
    modelBatch.render(renderableProviders);
    modelBatch.end();
    }
    frameBuffer.end();
    Cubemap cubemap = frameBuffer.getColorBufferCubemap();

    • Constructor Detail

      • FrameBufferCubemap

        public FrameBufferCubemap​(Pixmap.Format format,
                          int width,
                          int height,
                          boolean hasDepth)
        Creates a new FrameBuffer having the given dimensions and potentially a depth buffer attached.
        Parameters:
        format -
        width -
        height -
        hasDepth -

      • FrameBufferCubemap

        public FrameBufferCubemap​(Pixmap.Format format,
                          int width,
                          int height,
                          boolean hasDepth,
                          boolean hasStencil)
        Creates a new FrameBuffer having the given dimensions and potentially a depth and a stencil buffer attached.
        Parameters:
        format - the format of the color buffer; according to the OpenGL ES 2.0 spec, only RGB565, RGBA4444 and RGB5_A1 are color-renderable
        width - the width of the cubemap in pixels
        height - the height of the cubemap in pixels
        hasDepth - whether to attach a depth buffer
        hasStencil - whether to attach a stencil buffer
        Throws:
        GdxRuntimeException - in case the FrameBuffer could not be created