Can't ... help it. Fingers ... out of my ... control.
Originally posted by: hans030390
From what i have HEARD, next gen games actually wont use anything but SM3 or higher.
Doom 3 was based around the capabilities of a GeForce. The GF came out early 2000. D3 came out late 2004. It offers
similar IQ on a GF as on a GF6, albeit at vastly different performance levels.
Don't expect Epic to dump all pre-SM3 hardware into the ocean. They ran with basically DX7 from Unreal to UT2k4, and I don't think they're inclined (read: filthy rich enough) to start making boutique games enjoyable to only a select few.
you sir are an idiot and know NOTHING about shader model 3.0. There are many many more things you can do with SM3.0 and not 2.0
Whee!:
The move from DirectX8 to DirectX9 was a huge change, introducing high-precision floating-point computations and storage formats, complex pixel and vertex shader programs, and multiple render targets. Within DX9, the change from SM2 to SM3 is completely incremental, with instruction counts being extended and other straightforward improvements. With the Unreal Engine, moving from DX8 to DX9 required a whole new engine architecture; "moving" from SM2 to SM3 was just a matter of upping some stupid hardcoded limits.
I've been looking forward to this since about
Parhelia. IIRC, Perimeter is the only game to use it. The more deformable geometry the merrier, but it doesn't seem a simple add-in.
2. 60,000+ shader instructions (as opposed to 2.0's 500 something)
I'm sure game devs are getting right on shaders with 60k instructions.
3. better way to render light
Yes, FP blending is apparently essentially required for reasonable framerates with transparencies and HDR. I believe it's above and beyond SM3, though.
4. Less taxing than 2.0 (as in, if 3.0 does the exact same thing as 2.0, it runs faster)
I don't doubt this, but it hasn't been demonstrated in many games yet, and that's the bottom line for all of us.
Yeah, displacement mapping is going to be like that. It PYSICALLY changes the geometry of whatever it is applied to (either that or it is still 2d, but renders in full 3d, giving it shadows and the like). It is easier and less harsh on the computer to use D-mapping
I'm sure all the extra shadowing and virtual displacement mapping applied to that new geometry will be real easy on the GPU, too.
Yeah, I know much of my reply is mere superficial retort, but when people bust out the "idiot" stick, I'm probably not in danger of dragging this thread down any further.
Anyway, if you can get a card with SM3 for a bit more than a similar-performing one with just SM2, I say go for it. Otherwise, I say save up. Remember the rule of thumb, buy a card for a future game when that game comes out? I relearned my lesson with the 9700P.