JumpFlooding Class Reference

#include <JumpFlooding.h>

Static Public Member Functions
static void	init ()
static void	createDistanceTransformBuffers (Framebuffer &fbo1, Framebuffer &fbo2, int width, int height)
static Framebuffer *	applyDistanceTransform (Framebuffer *src, Framebuffer *dst)
static void	beginMeshWriting (Framebuffer *src, Framebuffer *dst)
static void	endMeshWriting ()
static Shader *	getMeshShader ()

Detailed Description

Implements a generalized distance transform on greyscale images on the GPU, as detailed in this thesis.

Member Function Documentation

Framebuffer * JumpFlooding::applyDistanceTransform ( Framebuffer *  src, Framebuffer *  dst  )

static

Takes two Framebuffers that have been initialized by createDistanceTransformBuffers together. src contains the input texture. The Framebuffer that contains the end result is returned. Depending on the number of iterations, this can be either src or dst. GL_DEPTH_TEST is disabled by the method. Viewport is set to the size of src.

The src Framebuffer should only have been drawn to with the Shader returned by getMeshShader.

void JumpFlooding::beginMeshWriting ( Framebuffer *  src, Framebuffer *  dst  )

static

Call before drawing models into the source buffer. The shader and framebuffer will be bound by this function. Between the begin and end call, render meshes and set the modelView, perspective, maxTheta, directional and edgeCompression uniform in the mesh shader.

void JumpFlooding::createDistanceTransformBuffers ( Framebuffer &  fbo1, Framebuffer &  fbo2, int  width, int  height  )

static

Takes two uninitialized framebuffer objects and initializes them to be used for distance transforms

void JumpFlooding::endMeshWriting ( )

static

Call to finish writing data into the src Framebuffer

Shader * JumpFlooding::getMeshShader ( )

static

Returns the shader bound by beginMeshWriting(), use it to set modelView and perspective matrices

void JumpFlooding::init ( )

static

Call this before any other methods from this class

---

The documentation for this class was generated from the following files:

• src/JumpFlooding.h
• src/JumpFlooding.cpp