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GLAbstraction

Utility package for ModernGL

Readme

GLAbstraction

A simple library, which makes the use of OpenGL a little bit more convenient and Julian. If you have any questions, please open an issue.

There are some tutorials and examples.

Features

  • Some linear algebrae, to do all kinds of transformations.
  • All the different glUniform functions are wrapped and the right function is determined via multiple dispatch (works for FixedSizeArrays, Colors and Real numbers)
  • Buffers and Texture objects are wrapped, with best support for arrays of FixedSizeArrays, Colors and Reals.
  • An Array interface for Buffers and Textures, offering functions like push!, getindex, setindex!, etc for GPU arrays, just like you're used to from Julia Arrays.
  • Shader loading is simplified and offers templated shaders and interactive editing of shaders and type/error checks.
  • Offers the type RenderOject, which helps you preparing the OpenGL state to render data with a shader.
  • Event handling with Reactive
  • Two camera types (PerspectiveCamera and OrthogonalCamera), which can be instantiated with a list of React signals from GLWindow. You can also supply your own signals.
  • Some wrappers for often used functions, with embedded error handling and more Julian syntax

Example:

using ModernGL, GLWindow, GLAbstraction, GLFW, GeometryTypes

window = GLWindow.create_glcontext("Example", resolution=(512, 512), debugging=true)


const vsh = vert"""
{{GLSL_VERSION}}
in vec2 position;
void main(){
    gl_Position = vec4(position, 0, 1.0);
}
"""
const fsh = frag"""
{{GLSL_VERSION}}
out vec4 outColor;
void main() {
    outColor = vec4(1.0, 1.0, 1.0, 1.0);
}
"""

const triangle = std_renderobject(
    Dict{Symbol, Any}(
        :position => GLBuffer(Point2f0[(0.0, 0.5), (0.5, -0.5), (-0.5,-0.5)]),
    ),
    LazyShader(vsh, fsh)
)

glClearColor(0, 0, 0, 1)

while isopen(window)
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
    render(triangle)
    swapbuffers(window)
    poll_glfw()
end

Credits

Thanks for all the great contributions

First Commit

04/08/2014

Last Touched

3 months ago

Commits

525 commits