Irrlicht Engine

I think what you say is right but OnPostRender() of irrlicht is also a good ideal because it hidden many detail of scene updating from application.If we use the 'Update' you have said, application must deal with much more update operator, include those can be done automatic without intersection of u...

I think perspective projection matrix used in irr is strange. A standard projection matrix may like : void matrix4::buildProjectionMatrixPerspectiveFovLH(f32 fieldOfViewRadians, f32 aspectRatio, f32 zNear, f32 zFar) { (*this)(0,0) = (cos(fieldOfViewRadians/2) * aspectRatio)/ sin(fieldOfViewRadians/2...