I don't think they will be using the same method for HDR.
ShadowRunner
Veteran
It was meant more specifically towards bungie and thier previous engine, to me the single most important thing for them to improve on is the IQ. Everything else was already fine and doubt it can be improved upon to give as great effect as improved IQ.
For example they may talk about improved lighting, better LOD system, bouncing sparks etc. but none of those things were bad in the first place and improved IQ is more important to me than improvements in any of those other individual areas.
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I'm talking about the Light Pre-Pass (version A) where the first pass is to render out the normal & depth buffers. These will have to fit within the eDRAM simultaneously to avoid tiling. The other version of LPP avoids the second geometry pass whilst rendering out the specular info along with the other two buffers.
Not saying they should or should not do it. That's entirely up to them sparing the time for redundant processing. It's just easier if they can avoid it. But who knows, maybe they can afford it.
Well, even the best graphics are ruined if you try to display them in a sub-720p resolution without any AA and blurry texture filtering. Image quality does have an important role IMHO.
Ah yup. More recently:
http://www.bungie.net/images/Inside/publications/siggraph/Engel/LightPrePass.ppt (some nice flow diagrams to describe the setup).
CryTek's version:
http://www.crytek.com/fileadmin/user_upload/inside/presentations/2009/Light_Propagation_Volumes.pdf
A good blog post on deferred "shading vs lighting" (4MRT G buffer vs multipass MRT setup):
http://gameangst.com/?p=141
Crackdown had a pretty similar (if not the same) way to setup their buffers as well.
No problem in fitting normal + depth during the first pass in EDRAM, that's what all 720p (without MSAA) games do.
Right, but we were on the topic of 2xMSAA.
The original blog post by Wolfgang Engel on Light pre-pass suggested running the first pass and the subsequent lighting calculation without MSAA, then using MSAA only for the last pass, where, on 360, you only have to write to a color buffer.
Ah right. Forgot about that.
Of course, it's a compromise. If you have a lit object on a distant unlit background, there will be some kind of jaggies, somewhere between what you'd get without AA, and the full MSAA.
No. Master Chief is already present but he's not on Reach. He's on a different mission looking for Halo.
