GLApp.h File Reference

Minimal application framework for running OpenGL or WebGL demos. More...

#include <string>
#include "GLEnv.h"
#include "GLProgram.h"
#include "GLArray.h"
#include "GLBuffer.h"
#include "GLTexture2D.h"
#include "Image.h"
#include "GLAppKeyTranslation.h"

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Classes
class	GLApp
	Simple app runner with a GL context, stock shaders, and draw helpers. More...

Enumerations
enum class	LineDrawType { LIST , STRIP , LOOP }
	Line primitive topology for drawLines(). More...
enum class	TrisDrawType { LIST , STRIP , FAN }
	Triangle primitive topology for drawTriangles(). More...

Detailed Description

Minimal application framework for running OpenGL or WebGL demos.

Provides a small, cross‑platform wrapper around GLEnv (GLFW+GLEW on desktop, Emscripten on the web) and a set of convenience methods to draw points, lines and textured quads, as well as to manage a few built‑in shader programs. Subclass GLApp and override init(), draw(), animate(), and input callbacks to build an interactive sketch.

The class also exposes helpers to compute pixel‑correct transforms for images and to upload point‑sprite textures used by drawPoints().

Enumeration Type Documentation

LineDrawType

enum class LineDrawType

strong

Line primitive topology for drawLines().

Enumerator
LIST	Disconnected line segments (GL_LINES)
STRIP	Connected polyline (GL_LINE_STRIP)
LOOP	Closed polyline (GL_LINE_LOOP)

TrisDrawType

enum class TrisDrawType

strong

Triangle primitive topology for drawTriangles().

Enumerator
LIST	Independent triangles (GL_TRIANGLES)
STRIP	Triangle strip (GL_TRIANGLE_STRIP)
FAN	Triangle fan (GL_TRIANGLE_FAN)