“IBL” just means you're getting lighting from an image. Any method for sampling lighting from an image is IBL, what the OP is doing here definitely qualifies. There are of course many other options for implementing IBL, such as pre-filtered cubemaps and other related techniques.

If your image has sm…

@irreversible That looks a lot like mine (insert quote about great minds, right ?). My only real issue is:

GetClass() is a virtual function overridden from some common base class

This is something that I was actively attempting to avoid when working on a solution. Not that I'm saying you're wrong for…

ddlox said:

look here:

• http://roar11.com/2015/07/screen-space-glossy-reflections/​
• http://jcgt.org/published/0003/04/04/​
• https://interplayoflight.wordpress.com/2019/09/07/hybrid-screen-space-reflections/​

Have fun ?

I use screen space planar(projected) reflections.

This method http://remi-genin.fr/blog/s…