Assassin's Creed adalah game pertama DX10.1?

[becco]

Beberapa rekan member di rage3D baru saja menyelesaikan kupas tuntas Assassin's Creed di Vista SP1. Dan ternyata ada gain performa hingga 20% dengan AA. Hardware yang digunakan adalah HD3800 dari AMD.


Vista SP1 (d3d10_1core.dll include):



Fitur DX10.1 yang "iseng" dicoba oleh tim Ubisoft untuk Assassin's Creed versi PC adalah:

HDR+Correct Anti Aliasing.

HDR lighting calculates colors and lighting outside a range that your monitor can display; hence why it's called high dynamic range. After the calculations are done, the lighting is clipped to a value your monitor is capable of displaying.

The AA resolve step is the final step in the antialiasing process in which the subpixels are sampled to determine the final color of each pixel on the screen.

The problem with HDR and AA is that normally, MSAA resolve is done before the lighting values are clipped. The range of contrast before clipping is much greater. The extreme contrast ranges present in HDR rendering means that if you have an area of very low contrast bordering an area of very high contrast (such as what was shown in the screenshot), they will saturate each other and cancel each other out, negating the benefit of antialiasing.

The only way to compensate for this is to change the way resolve is done and the way the subpixels are sampled to account for the higher range of contrast. This is known as HDR-Correct Antialiasing.

Kesimpulan sementara:

The impact that DX10.1 has is quite frankly greater than expected. A 20% improvement in AA performance is very impressive. GPU refreshes have been built around lesser gains. Based on the game's behavior it's possible that Ubi are doing their own Custom Resolve in order to get HDR correct AA, and are also taking advantage of the full access to MSAA buffers DX10.1 brings in order to get both better quality and better performance

yup, cuma ada fitur HDR+AA yang lebih "benar" tanpa menguras performa



Statement dari AMD:

"Ubisoft are at the forefront of technology adoption, as showcased with the fantastic Assassin’s Creed title. In this instance our developer relations team worked directly with the developer and found an area of code that could be executed more optimally under DX10.1 operation, thus benefiting the ATI Radeon HD 3000 Series."

Screenshot:
Assassin's Creed dengan AA pada Vista SP1 / DX10.1
Assassin's Creed dengan AA tanpa Vista SP1 / DX10




Sumber: Rage3D

[elles]

mana screenshot dari dirimu mods becc,...

kayake ini secara kebetulan team ati catalyst nemu kalo di beberapa area fitur

hdr+corect AA mereka active secara langsung.. cerdik juga yeee..

bagemana dengan developernya sendiri, mereka taw kaga kalo game mereka itu benernya

ada fitur dx10.1 support secara ati hardware (mana statementnya)

apakah developer takod kuwarin bahwasanya ne AC support dx10.1 n ga di floorkan

karena TWIMTP nvidia ... yang notabene lum ada support dx 10.1 dr nvidia ..

btw mods becco ini game TWIMTP ga seh,... wa lupa soale dah unistall ...

terakhir : kalo cuman fitur HDR+AA Correct kek'nya kuduw mata elang yang isa liyat yee..

mana donkss fitur DX10.1 laennya kayak GI ... kan mayan ada beda lah kaya dx8 ma dx9 ..

[unwinged]

screenshot yang meragukan..
mana ada assassin creed di jaman kuda gigit besi kok screenshotnya bangunan beton berkabel dengan kanopi semi transparan ?

[unwinged]

kalo dari screenshot nya tadi, nggak perlu mata elang kok bro elles. cetho banget kok beda nya. dengan kualitas segitu kalo misalnya malah lebih cepet renderingnya di dx 10.1 ya salut buat team mikocok

[becco]

@elles, ini bukan game TWIMTBP
muluus di semua GeForce dan Radeon

yang make HD3850/HD3870 under Vista SP1 dapet gain 20% saat AA
karena AA dah make teknik dx10.1, lebih cepet dan lebih alus gitu

[becco]

Originally Posted by unwinged

screenshot yang meragukan..
mana ada assassin creed di jaman kuda gigit besi kok screenshotnya bangunan beton berkabel dengan kanopi semi transparan ?

belum pernah main Assassin's Creed ya
LoL

memang itu yang bikin langsung aku uninstall
si do'i kok tiba2 dari jaman medieval ke jaman modern
memang begitu ceritanya, backward, foward, backward, foward

[unwinged]

iya blom pernah nunggu veri full nya

emang begitu ya ?
edan.

yang full res pak kalo ada..

[becco]

waduh jadi Spoiler nih
ya pokoknya kan di jaman modern ada seorang bar tender gitu, dia titisan Assassin di jaman purba, ato reinkarnasi, lalu otaknya digitu-gitu_in ama ilmuwan yang bla bla bla
lompat lompat deh memorynua, foward, backward, backward .... terus aku uninstall karena bosen
maaf spoiler ... gara2 unwinged

sorry oot