Twiggle

Hi, I apologize if this has already been asked somewhere. I've spent the past few hours doing a decent amount of searching without particularly helpful results. What I'm trying to figure out how to do is make modifications to how Minecraft actually renders the world. I know this must be possible since the GLSL shader mod did it. I've found some classes that I think may be the culprit (such as BlockModelRenderer , but these are, of course, base classes of Minecraft's functionality. All I want to do is make a basic modification to how Minecraft displays the blocks, specifically the lighting. I'm very familiar with OpenGL, and I don't even care about messing with the lighting values themselves -- just how they're displayed. So, to make my questions concrete: 1. Does Forge have hooks for this particular task? 2. Is it possible to do this without having to modify base classes or get into ugly ASM or core mod stuff? 3. What class/classes should I be looking at and modifying to get this job done? If I know that, I can probably find the methods I need to worry about from there. Thanks. EDIT: After some digging, I found that Forge has a class called ForgeBlockModelRenderer . Is there some way I can override methods from this since Forge seems to be injecting itself into it?