Function ul_sys::ulApplyProjection

pub unsafe extern "C" fn ulApplyProjection(
    transform: ULMatrix4x4, 
    viewport_width: f32, 
    viewport_height: f32, 
    flip_y: bool
) -> ULMatrix4x4

Sets up an orthographic projection matrix with a certain viewport width and height, multiplies it by ‘transform’, and returns the result.

This should be used to calculate the model-view projection matrix for the vertex shaders using the current ULGPUState.

The ‘flip_y’ can be optionally used to flip the Y coordinate-space. (Usually flip_y == true for OpenGL)