bvv.core.offscreen

Class OffScreenFrameBuffer

java.lang.Object

bvv.core.offscreen.OffScreenFrameBuffer

public class OffScreenFrameBuffer
extends Object

Render to texture. Print values. For debugging shaders.

Constructor Summary

Constructors

Constructor and Description
OffScreenFrameBuffer(int fbWidth, int fbHeight) Use GL_RGB32F as internalFormat.
OffScreenFrameBuffer(int fbWidth, int fbHeight, int internalFormat)
OffScreenFrameBuffer(int fbWidth, int fbHeight, int internalFormat, boolean withDepthAndStencil, boolean flipY)

Method Summary

Modifier and Type	Method and Description
void	bind(com.jogamp.opengl.GL3 gl) Bind this framebuffer and clear it.
void	bind(com.jogamp.opengl.GL3 gl, boolean clear)
void	drawQuad(com.jogamp.opengl.GL3 gl) Render fullscreen quad with the texture.
void	drawQuad(com.jogamp.opengl.GL3 gl, int minFilter, int magFilter)
float	get(int c, int x, int y) Get a value from the texture (downloaded by unbind(GL3) or getTexture(GL3))
int	getHeight()
net.imglib2.img.Img<net.imglib2.type.numeric.real.FloatType>	getImg()
int	getTexColorBuffer()
void	getTexture(com.jogamp.opengl.GL3 gl)
int	getWidth()
void	unbind(com.jogamp.opengl.GL3 gl) Unbind this framebuffer (bind framebuffer 0) and download the texture into a float array.
void	unbind(com.jogamp.opengl.GL3 gl, boolean getTexture)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

OffScreenFrameBuffer

public OffScreenFrameBuffer(int fbWidth,
                            int fbHeight)

Use GL_RGB32F as internalFormat.

Parameters:

fbWidth - width of offscreen framebuffer

fbHeight - height of offscreen framebuffer

OffScreenFrameBuffer

public OffScreenFrameBuffer(int fbWidth,
                            int fbHeight,
                            int internalFormat)

Parameters:

fbWidth - width of offscreen framebuffer

fbHeight - height of offscreen framebuffer

internalFormat - internal texture format

OffScreenFrameBuffer

public OffScreenFrameBuffer(int fbWidth,
                            int fbHeight,
                            int internalFormat,
                            boolean withDepthAndStencil,
                            boolean flipY)

Parameters:

fbWidth - width of offscreen framebuffer

fbHeight - height of offscreen framebuffer

internalFormat - internal texture format

withDepthAndStencil - whether to create a render buffer for depth and stencil

flipY - whether to flip the Y axis when drawing the texture

Method Detail

getImg

public net.imglib2.img.Img<net.imglib2.type.numeric.real.FloatType> getImg()

getTexColorBuffer

public int getTexColorBuffer()

bind

public void bind(com.jogamp.opengl.GL3 gl)

Bind this framebuffer and clear it. Call before rendering.

unbind

public void unbind(com.jogamp.opengl.GL3 gl)

Unbind this framebuffer (bind framebuffer 0) and download the texture into a float array. Call after rendering.

get

public float get(int c,
                 int x,
                 int y)

Get a value from the texture (downloaded by unbind(GL3) or getTexture(GL3))

Parameters:

c - channel (rgb)

x -

y -

Returns:

bind

public void bind(com.jogamp.opengl.GL3 gl,
                 boolean clear)

unbind

public void unbind(com.jogamp.opengl.GL3 gl,
                   boolean getTexture)

drawQuad

public void drawQuad(com.jogamp.opengl.GL3 gl)

Render fullscreen quad with the texture.

drawQuad

public void drawQuad(com.jogamp.opengl.GL3 gl,
                     int minFilter,
                     int magFilter)

getTexture

public void getTexture(com.jogamp.opengl.GL3 gl)

getWidth

public int getWidth()

getHeight

public int getHeight()