• Hey, guest user. Hope you're enjoying NeoGAF! Have you considered registering for an account? Come join us and add your take to the daily discourse.

Ratchet & Clank Rift Apart - PC Version - AMD GPUs Won't Have Ray Tracing at Launch

U

Unknown Soldier

Member
Buggy Loop said:
One is a disguised PC and the other's a PC.
Click to expand...
That's not true at all though, since PS5 runs a custom OS with custom API's which are unrelated to DirectX.

The PS5 OS is derived from Linux, not Windows. The PS5 custom API, if it's at all similar to the PS4 API, has both a higher level which is similar to OpenGL and a lower level that is similar to Vulkan. OpenGL and Vulkan are generally not used on PC, all developers except Id Software instead use DirectX 11 and 12 for high/low level API access.

There's a lot going on with console development which is invisible to PC gamers because in general you either have an actual PS5 devkit and are a registered developer for PS or you're not. Unlike with a PC where everyone is a developer and you can just download Unreal Engine and get started, developing for consoles requires jumping through hoops and signing forms and shit to get hardware you need sent to you.

A console is not a glorified PC in a special box. Even the Xbox has customizations to Windows and DirectX which aren't seen on normal PC's, though obviously an Xbox is closer to a PC than a PS console is.
 
Buggy Loop

Buggy Loop

Member
Unknown Soldier said:
That's not true at all though, since PS5 runs a custom OS with custom API's which are unrelated to DirectX.

The PS5 OS is derived from Linux, not Windows. The PS5 custom API, if it's at all similar to the PS4 API, has both a higher level which is similar to OpenGL and a lower level that is similar to Vulkan. OpenGL and Vulkan are generally not used on PC, all developers except Id Software instead use DirectX 11 and 12 for high/low level API access.

There's a lot going on with console development which is invisible to PC gamers because in general you either have an actual PS5 devkit and are a registered developer for PS or you're not. Unlike with a PC where everyone is a developer and you can just download Unreal Engine and get started, developing for consoles requires jumping through hoops and signing forms and shit to get hardware you need sent to you.

A console is not a glorified PC in a special box. Even the Xbox has customizations to Windows and DirectX which aren't seen on normal PC's, though obviously an Xbox is closer to a PC than a PS console is.
Click to expand...

They still have the exactly same hybrid RT pipeline. So what's with his comment that the discrete AMD GPU is different for RT. Hardware wise, pipeline doesn't care one bit for API.

On top of that, PS5 has nothing to do with this discussion. The devs coded the functions from an hardware agnostic API and the function calls MUST be working since Nvidia and (i guess?) Intel are working. That means the function Nixxes coded works. DirectX 12 understood the call and sent to GPU.

It really seems to be a compiler error on AMD's end. Nothing outside of that would make sense. Nixxes is not a newbie dev nor is it their first time taking a Sony inhouse engine with RT features and porting it to PC.
 
iHaunter

iHaunter

Member
HeisenbergFX4 said:
Drag Race Reaction GIF by RuPaul's Drag Race's Drag Race
Click to expand...
Hell Yeah Willow Pill.

But not surprising. AMD is still behind in the GPU game in terms of user base. Not surprising.
 
S

shamoomoo

Member
Buggy Loop said:
RT + upscalers + GPU decompression maybe stalled the pipeline or AMD’s compiler is freaking out?

I think it’s on AMD’s side for the problem. Shit happens.

Their compiler did something weird too with Portal RTX, it made 99ms UBERshaders for no reasons, it’s shit performance at launch had nothing to with with the path tracing API calls.
Click to expand...
But eat tracing happens on the TMUs so the shaders cores are free to do other work.
 
Kataploom

Kataploom

Gold Member
Buggy Loop said:
Yea but why make another branch outside of DXR just for AMD? It's all hardware agnostic with the API.

It's really puzzling.
Click to expand...
What I'm thinking it's they're probably working with some unreleased RT API or hardware features for next gen cards, since they're rumored to come sooner than expected, but yeah, it's still weird
 
GreatnessRD

GreatnessRD

Member
So like 90% of the PC userbase are using 1650's, 1060's and AMD's mainstream 5600 XT's and RX 6600's. If people don't get the fuck outta here with this fake ass outrage because Raytracing is disabled at launch. At least its coming, if their gospel is to be believed. Nixxes have had solid PC ports, so this is almost a nothing burger and people being mad about nothing. Sounds like they found something fucked up and instead of throwing it in there broken, they said let's fix it first and then added instead of what you normally get with games these days.

Hopefully, they get whatever is messed up fixed. The fake outrage kills me.
 
H

hlm666

Member
Could the gpu decompression from DS be conflicting with the RT similarly to how their RT performance tanks when you have more than 1 RT effect on?
 
willothedog

willothedog

Member
GreatnessRD said:
So like 90% of the PC userbase are using 1650's, 1060's and AMD's mainstream 5600 XT's and RX 6600's. If people don't get the fuck outta here with this fake ass outrage because Raytracing is disabled at launch. At least its coming, if their gospel is to be believed. Nixxes have had solid PC ports, so this is almost a nothing burger and people being mad about nothing. Sounds like they found something fucked up and instead of throwing it in there broken, they said let's fix it first and then added instead of what you normally get with games these days.

Hopefully, they get whatever is messed up fixed. The fake outrage kills me.
Click to expand...
90%, isn't hyperbole fun :messenger_winking_tongue:
 
Pimpbaa

Pimpbaa

Member
Ugh this hurts my brain. The game runs has a 40fps fidelity mode and performance RT mode at 60fps on a console with an AMD SoC with really weak RT performance. But newer AMD GPUs on PC can’t use RT? Also, Spider-Man for PC had RT on AMD hardware. What the hell are you doing Nixxes?!
 
H

hlm666

Member
It's a driver issue according to AMD.

"Application crash or driver timeout may be observed while playing Ratchet & Clank™: Rift Apart with Ray-Tracing and Dynamic Resolution Scaling enabled on some AMD Graphics Products, such as the Radeon™ RX 7900 XTX."
"AMD is working with the game developers of Ratchet & Clank™: Rift Apart to resolve some stability issues when Ray-Tracing is enabled."

 
Last edited:
D

docchicken

Member
Already see some conspiracy theories in the thread, but examples like this beg the question.

p.s. I know begging the question is a fallacy.
 
rofif

rofif

Can’t Git Gud
RT and graphics are a big reason to play this game.
So much so, I find it weird and pointless they included NON RT mode in ps5 version.... why even bother
 
You must log in or register to reply here.

Similar threads

Rift Apart PC Requirements Revealed
News Hardware Platform 2 3 4
191
12K
Gaiff replied
Ratchet and Clank: Rift Apart PC features revealed
2
80
5K
analog_future replied
Sony will release Ratchet & Clank: Rift Apart for PC in July 26
News 4 5 6 7 8
356
18K
FingerBang replied
[DF] Ratchet and Clank: Rift Apart - PC Review - Cutting Edge Tech But Lacking In Polish
2 3 4 5 6
278
19K
Agent_4Seven replied
PS5 content that isn't directly viewable on the PS Store
1
608
Lolofonek replied
Top Bottom