Recent content by oldschoolnerd

Cut my teeth on that bad boy. I remember writing one particular bootstrap demo where I had the top half of the screen mirrored in a rippling lake in the bottom half of the display where the ripple effect was created by adjusting the horizontal offset based on some sort of sin wave table. Amazing...

So xb1 will see zero benefit from parallel draw call submission?

Is the inference that so much more performance can be extracted using dx12 that it won't be possible to achieve even close to parity on systems using older non-mantle style apis?

I think this was what the developer interviewed here is referring to. It appears that, in his eyes at least, dx12 is such an enabler of new visual effects etc that devs will have to think carefully about using it, either needing to split the visual pipeline, one for pc/xb1 and a seperate one for...

So you're suggesting that the ps4, today, already runs a mantle like api? i.e. parallelised draw calls across multiple CPU cores. That's the first I've heard of that...

One thing for sure, they're monumentally quiet on the subject!

No its not exclusive, however they do have an api hitting production in a few months...

Now here I have to disgaree. From what I gather the performance gains from dx12 have little to do with getting close to the metal, but everything to do with utilising multiple CPU cores to submit work to the GPU. Dx12 is paradigm shift in the approach rather than getting even closer to the...

I agree, clearly the tests are synthetic purely to demonstrate one facet, however there are documented (sort of...) examples where the xb1 has been bottlenecked by its single threadred draw call submission. That bottleneck is no more with dx12. Surely that's going to have an impact?

So, what's the general consensus around here these days? Is dx12 going to turn the xb1 into a ps4 beating monster, or is dx12 only for PC with xb1 getting small gains? Personally, the more info that comes out, I'm going with the former...though to be sure if the former is the case, MS have been...

So fundamentally this is what DirectX12 improves upon, each core can be a producer thread, concurrently. Have you had a go on it yet? Would love to know your views on Mr Wardell and his 500% performance improvement claims. To my mind this would only be possible if the GPU was currently only 20%...

Interesting. According to Brad, the xbox one will benefit from a 300% to 500% potential performance jump with DX12. However, only engines written from the ground up for DX12 will show this. So we have a wait on our hands...

Now that is a good question. Unless it somehow makes the context switching less expensive...which I doubt...

I didn't get it from there, but it does have the smell of it. However, if you just look at the bits from that actual sdk and ignore and added interpretation it does seem to support the view that more that one command processors (called pipes in the document?) will become available to titles once...

Isn't this referred to in the sdk. Highlighted in this image.