Maven module :un.engine : engine-opengl-util :
Class : un.impl.opengl.resource.FBO
Extends/Implements : un.impl.opengl.resource.AbstractResource
Subclasses : -

Resource to manipulate a frame buffer object.
http://www.opengl.org/wiki/Framebuffer_Object
author Johann Sorel

Variables : attachments
Functions : FBO, getWidth, getHeight, resize, resample, getAttachements, addAttachment, addAttachment, removeAttachment, getGpuID, getTexture, getColorTexture, getDepthTexture, getStencilTexture, getDepthStencilTexture, isOnSystemMemory, isOnGpuMemory, loadOnSystemMemory, loadOnGpuMemory, unloadFromSystemMemory, unloadFromGpuMemory, bind, unbind, blit, createBlitFBO, toChars

protected Sequence attachments

param width fbo width
param height fbo height

public void FBO (int width, int height)

public int getWidth ()

public int getHeight ()

Resize the FBO.
Warning : all texture datas will be lost.
param width newwidth
param height newheight

public void resize (GL gl, int width, int height)

Change the multisampling value.
This method can only be used if the FBO is already multisampled.
Warning : all texture datas will be lost.
param nbSample

public void resample (GL gl, int nbSample)

Returns an array of all fbo attachements.
return FBOAttachment array, never null, can be empty.

public FBOAttachment[] getAttachements ()

public void addAttachment (int type, Texture texture)

public void addAttachment (FBOAttachment att)

public void removeAttachment (int type)

return on gpu fbo id.

public int getGpuID ()

param type one of GLC.FBO.Attachment
return

public Texture getTexture (int type)

In memory color image.
return Image or null if not loaded on system memory

public Texture getColorTexture ()

In memory depth image.
return Image or null if not loaded on system memory

public Texture getDepthTexture ()

In memory stencil image.
return Image or null if not loaded on system memory

public Texture getStencilTexture ()

In memory depth stencil image.
return Image or null if not loaded on system memory

public Texture getDepthStencilTexture ()

{@inheritDoc }

public boolean isOnSystemMemory ()

{@inheritDoc }

public boolean isOnGpuMemory ()

{@inheritDoc }

public void loadOnSystemMemory (GL gl)

OpenGL constraints : GL2GL3

{@inheritDoc }

public void loadOnGpuMemory (GL gl)

{@inheritDoc }

public void unloadFromSystemMemory (GL gl)

{@inheritDoc }

public void unloadFromGpuMemory (GL gl)

Bind frame buffer.

The color attachment are bind using there attachment number.
Color attachement 0 must be used with GLSL layout 0
Color attachement 1 must be used with GLSL layout 1
...etc...

@param gl

public void bind (GL gl)

Unbind frame buffer.
param gl

public void unbind (GL gl)

Blit (copy removing multisampling) each attachment to target fbo.
OpenGL constraints : GL2
param gl
param blitFBO

public void blit (GL gl, FBO blitFBO)

Create an FBO which map all textures.
Use only if this FBO uses Multisampling.
return FBO

public FBO createBlitFBO ()

public Chars toChars ()