Orthographic projection with origin at screen bottom left

Question

I\'m using the python OpenGL bindings, and trying to only use modern opengl calls. I have a VBO with verticies, and I am trying to render with an orthographic projection mat

Answer 1

glUniformMatrix4fv(projectionUniform, 1, GL_FALSE, matrix)

Your matrix is stored in row-major ordering. So you should pass GL_TRUE, or you should change your matrix to column-major.