But who cares, especially for those shader books it is not that critical not to be up to date: Even today, only about a quarter of all end users (I'm talking about gamers) have hardware capable of rendering graphics using Shader Model 3. And even that doesn't mean anything: A graphics accelerator reporting that it is able to do SM3 doesn't mean that it also is able to draw those graphics with usable speed. So if I start programming nice SM3 grade graphics, not much people will really see a lot of it.
BTW: This situation will stay or even get worse: Direct3D 10 removed all min/max capabilities from the spec, so hardware is able to do D3D10 or not. There is nothing in between. The problem: Of course the spec doesn't talk about speed anywhere (at least I didn't see anyhting like that) and most vendors will be happy to display a 'Made for D3D10' tag on their boxes, ignoring speed. Who cares about hardware able to execute hundreds of shader instructions per pixel, if you can only draw a dozen of pixels that way?
Ok, enough off topic. Looking forward to find some time to read some articles of that book.
nine comments, already:
Well… but a fixed set of capabilities and vastly varying speeds gets you a 1D problem. This is far better than the current situation where you have vastly different speeds and vastly different feature sets (2D). Count in driver versions/bugs, and the problem becomes 3D
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I hope that book helps a lot in the development of future features for Irrlicht
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