Skip to content

Instantly share code, notes, and snippets.

@christophercrouzet

christophercrouzet/gist:1fea72d0d88e5a0dca16

Created August 16, 2014 03:03
Show Gist options
  • Save christophercrouzet/1fea72d0d88e5a0dca16 to your computer and use it in GitHub Desktop.
Save christophercrouzet/1fea72d0d88e5a0dca16 to your computer and use it in GitHub Desktop.
Download ZIP
OpenGL projection matrix to fit the content to the window while preserving the aspect ratio
Raw
gistfile1.cpp
int shorterSide = std::min(width, height);
GLfloat marginX = 1.0f + GLfloat(width - shorterSide) / (GLfloat)shorterSide;
GLfloat marginY = 1.0f + GLfloat(height - shorterSide) / (GLfloat)shorterSide;
glm::mat4 projection = glm::ortho(-marginX, marginX, -marginY, marginY);
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment