Recent content by sebbbi

UE4 doesn't yet support 16 bit float/int in shaders. I am waiting for official support, before I start doing my optimizations. UE4.19 temporal upsampling and SSAO shaders are heavily ALU bound. Our fluid SDF generator is also heavily ALU bound. These shaders would very likely benefit from...

Added dynamic res too. Get up to 10% higher resolution in lightweight areas. Nice improvement. PS4 Pro now looks surprisingly close to native 4K (Titan X), and still runs at locked 60 fps.

My GDC 2018 presentation about Claybook technology (ray-tracing and GPU physics sim): https://www.dropbox.com/s/s9tzmyj0wqkymmz/Claybook_Simulation_Raytracing_GDC18.pptx?dl=0

My preliminary results with UE 4.19 temporal upscaler. 1080p upscaled to 4K looks closer to 4K. Significant improvement. I am personally much more interested about temporal upscaling than dynamic resolution. Our frame rate is very stable, so dynamic resolution doesn't do much for us. But...

That would be nice. But games still had to be made to support both modes for the original device. So this change wouldn't ease developer burden and would still restrain game design. But of course it would be nice for the customer.

Die shrink would be nice. It would be much bigger practical difference on a handheld versus base->slim home consoles. Who doesn't like handheld with better battery life and slightly smaller size (reduced cooling requirement and potentially smaller battery).

Geforce Now seems promising. Most people own lightweight laptops nowadays (Macbooks, Ultrabooks, etc). Only hardcore gamers buy desktops anymore. Geforce Now would allow AAA gaming for much wider range of people. But it can't be the only way, since it only works well near big cities. Need fast...

Oh yeah. Now I remember. DOA3 was on the original Xbox (not DOA2 Ultimate), and it didn't have online multiplayer. Same for Halo 1. But the original Xbox wasn't that popular to begin with. Xbox 360 was the one that outsold Sony devices and made Microsoft a big player in console gaming. X360...

Original Xbox also had one key thing that nobody had. Xbox Live: Online community, gamertags/pics, voice chat, multiplayer, leaderboards, gamerscore, achievements. This was a brand new world for console gamers. In comparison, PS2 had an online accessory that was sold separately, but only a few...

Screen consumes significant amount of electricity (adds power delivery requirements) and thus produces heat (adds heat dissipation requirements). A bit higher temp don't matter as much when docked. Dock has predictable heat dissipation and extra heat doesn't feel uncomfortable when the unit is...

We all know that dynamic lighting saves time vs baking lightmaps (no matter which technique is used). We have been using dynamic lighting (lower quality vs baked) in Trials games for ages partly because of this reason. My ballpark estimate was that this improved productivity by 2x or so for some...

This is cool stuff, and I am sure we will patch trace games eventually, however... 10x visual quality of AAA games is debatable. Most current game environments are mostly static and have mostly static lighting. And I will argue that this will not radically change, because real life environments...

Battlefield 4. Multiplayer game. Stable 60 fps on both base consoles. Looks way better than PUBG on base Xbox One. PUBG supports up to 100 players (Battlefield 4 up to 64). PUBG is more, but not dramatically so. Battlefield 4 frame rate tests (solid 60 fps): Battlefield 4 player count (up to...

Frame rate dips to 15 fps can be considered broken in this genre. CoD was the most popular shooter last gen it ran 60 fps on both Xbox 360 and PS3. Battlefield, CoD and Overwatch all run 60 fps on Xbox One and PS4 (even base versions). Vsync locked 30 fps is barely acceptable for competitive...

Speculative execution (branch prediction) and caches are very important for performance. If you remove caches, memory accesses become 100x+ slower. If you remove branch prediction, the CPU stalls every time it encounters a branch to wait for the input data to be available in registers. Removing...