GL.Enable NoMethodError

vaiorabbit / ruby-opengl

Yet another OpenGL wrapper for Ruby (and wrapper code generator).

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Closed ghost closed 1 year ago

ghost commented 1 year ago

The example in the readme fails to work. When trying out:

require 'opengl'
GL.Enable(GL::DEPTH_TEST)

it just results in a NoMethodError

`Enable': undefined method `call' for nil:NilClass (NoMethodError)
GL_FUNCTIONS_MAP[:glEnable].call(_cap_)

vaiorabbit commented 1 year ago

Make sure your environment supports OpenGL. Have you tried running sample.rb?

ghost commented 1 year ago

OpenGL works fine in C and in Ruby using the old opengl gem. It just doesn't work with this gem!

vaiorabbit commented 1 year ago

Confirm that you actually called GL.load_lib() before calling any OpenGL APIs including GL.Enable(GL::DEPTH_TEST).
- e.g.: simple.rb#L22