When textures are uploaded or updated, the following pixel store is set to defaults: GL_UNPACK_ALIGNMENT, GL_UNPACK_ROW_LENGTH, GL_UNPACK_SKIP_PIXELS , GL_UNPACK_SKIP_ROWS. Texture binding is also affected. Texture updates can happen when the user loads images, or when new font glyphs are added. Glyphs are added as needed start and end of render() method.

The data for the whole frame is buffered and flushed in end of rendering. The following code illustrates the OpenGL state touched by the rendering code:

	glUseProgram(prog);
	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	glEnable(GL_CULL_FACE);
	glCullFace(GL_BACK);
	glFrontFace(GL_CCW);
	glEnable(GL_BLEND);
	glDisable(GL_DEPTH_TEST);
	glDisable(GL_SCISSOR_TEST);
	glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
	glStencilMask(0xffffffff);
	glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
	glStencilFunc(GL_ALWAYS, 0, 0xffffffff);
	glActiveTexture(GL_TEXTURE0);
	glBindBuffer(GL_UNIFORM_BUFFER, buf);
	glBindVertexArray(arr);
	glBindBuffer(GL_ARRAY_BUFFER, buf);
	glBindTexture(GL_TEXTURE_2D, tex);
	glUniformBlockBinding(... , GLNVG_FRAG_BINDING);

Usage

Dependencies

Add dependency repo

For using this library you should add these urls as repositories:
For LWJGL and JOML dependencies
https://oss.sonatype.org/content/repositories/snapshots/ - for snapshots
https://oss.sonatype.org/content/repositories/releases/ - for releases
Also you can add your own versions of these libraries using LWJGL form.

For LEGUI and CBCHAIN dependency
https://raw.github.com/SpinyOwl/repo/releases

And add this dependency to your build script:

Add dependency (Maven):

<!-- LEGUI - https://github.com/SpinyOwl/legui -->
<dependency>
   <groupId>com.spinyowl</groupId>
   <artifactId>legui</artifactId>
   <version>${legui_version}</version>
</dependency>

Add dependency (Gradle):

// LEGUI - https://github.com/SpinyOwl/legui
compile group: 'com.spinyowl', name: 'legui', version: "${legui_version}";

Demos:

All examples located under demo package.

Projects using LEGUI:

Modeler by Cout970

Open 3D Modeling Tool (Cout970/Modeler)
This tool is written in Kotlin, using LWJGL3 for rendering and Legui to build user interfaces

FMT by Fexcraft

Fex's Modelling Toolbox (Fexcraft/FMT)
A Tool to create Models basing on the "TMT" (updated and maintained version of Fex/FCL) Library.

Links

LWJGL - Lightweight Java Game Library 3
JOML – Java OpenGL Math Library
CBCHAIN - Callback Chain for LWJGL3
NanoVG -Small antialiased vector graphics rendering library for OpenGL.

Radio button and text input	Widgets	TextArea

Button, togglebutton, checkbox, selectbox	Sliders	ScrollPanel

s0larm00n/legui

TOC

LEGUI - What is it?

Examples

Contribution to LEGUI

System requirements

OpenGL state touched by the backend