Request to ADD (Rewriting Vertex Processing) to GPU massive boost frame rate.

[jamesstuller]

Request to ADD (Rewriting Vertex Processing) to GPU massive boost frame rate so even slow pc may run pcsx2 at full speed.
RPCS3 CEMU and Dophin ps3 has this Rewriting Vertex Processing to GPU and game now run very good low end pc.

Intel core i3-6100u
intel hd 520
12gb ram

drakengard 1&2 don't run full speed on PCSX2 on this laptop.
drakengard 3 run full speed in RPCS3 on this laptop.

This Rewriting Vertex Processing to GPU is last hope for pcsx2 to run games full speed so it WIN WIN for pcsx2.

[jesalvein]

Request to ADD (Rewriting Vertex Processing) to GPU massive boost frame rate so even slow pc may run pcsx2 at full speed.
RPCS3 CEMU and Dophin ps3 has this Rewriting Vertex Processing to GPU and game now run very good low end pc.

Intel core i3-6100u
intel hd 520
12gb ram

drakengard 1&2 don't run full speed on PCSX2 on this laptop.
drakengard 3 run full speed in RPCS3.

This Rewriting Vertex Processing to GPU is last hope for pcsx2 to run games full speed so it WIN WIN for pcsx2.

Can you explain how we can add it ?

[jamesstuller]

Can you explain how we can add it ?

I really don't how but this link may help https://rpcs3.net/blog/2017/08/16/rewrit...nce-gains/

You may need contact rpcs3 uear kd-11 by Patreon sure he likely help on explain how add Rewriting Vertex Processing to GPU.

[jesalvein]

Are you sure the PS3 RSX GPU is similar to PS2 GPU ?

[jamesstuller]

Are you sure the PS3 RSX GPU is similar to PS2 GPU ?

Nope not sure if smilar but sure a graphics developer for pcsx2 may be able to pull this but also may help with some games graphics issuses.

[Nobbs66]

Yeah, none of this would help.

[dabore]

ugh. the rsx is a regular gpu in terms of shaders. some input stream mapping isn't easily done with the gs and the problem with this whole vertex processing on the ps2 is the complexity of the vu code. you'd need explicit gpu machine code to recompile vu shaders to run on regular gpu not with the regular shaders and pipeline stages. you basicly have a typeless buffer and compute it into another basicly typeless buffer with a bit of gif stuff to glue it together and which you have to reinterpret later to get it sorted anyway. you can't convert any of this into a virtual buffer formats to transfer them. getting all those instruction to run in parallel to get a speed boost is even harder.

[gregory]

Request to ADD (Rewriting Vertex Processing) to GPU massive boost frame rate so even slow pc may run pcsx2 at full speed.
RPCS3 CEMU and Dophin ps3 has this Rewriting Vertex Processing to GPU and game now run very good low end pc.

Intel core i3-6100u
intel hd 520
12gb ram

drakengard 1&2 don't run full speed on PCSX2 on this laptop.
drakengard 3 run full speed in RPCS3 on this laptop.

This Rewriting Vertex Processing to GPU is last hope for pcsx2 to run games full speed so it WIN WIN for pcsx2.

PS2 doesn't have so much draw calls. The number of vertices is likely lower than PS3. The real cost for us is all computation done on VU CPU. VU1 can be used as a kind of vertex shader.

Anyway on the GS side, the real issues are
1/ texture format which requires costly conversion and various tricks
2/ GPU hardware unit that doesn't behave as the GS. So GPU hardware accelerated operations are replaced by shader software emulations.