FrictionalGames OpenGL Hero

**Tanshaydar** · 04-11-2011, 03:13 PM

This time, but cards that doesn't support Dx10/11 doesn't support higher OpenGL versions either. Mine supports Dx 10.1 and OpenGl 3.3

**hollowleviathan** · 04-11-2011, 05:46 PM

My card supports DX11 and OGL 4.1, and I think a game that comes out in 2012+ should look like it. Also, these games generally also support render engines down to DX9 for aging setups.

**gandalf91** · 04-12-2011, 04:03 PM

So Amnesia is just OpenGL right?..or is it both OGL and Direct 3D?

**Caterpillar** · 04-12-2011, 04:10 PM

It is OpenGL

**gandalf91** · 04-13-2011, 12:34 AM

Yeah, that's what I thought. That being said, how come the system requirements on the box called for a DX 9.0c compliant videocard?

**hollowleviathan** · 04-13-2011, 12:37 AM

Probably because those are the same videocards that will support the version of OpenGL the game needs.

**gandalf91** · 04-13-2011, 06:54 PM

Alright, thought so. Thanks guys, I was in a debate with someone over whether it was OpenGL or OpenGL + DX. Just looking for some further confirmation. Tongue

**Argoon** · 04-13-2011, 09:55 PM

Tommas nice to know that you guys will maintain the OpenGL render with the new D3D one.

I personally have a Dx11 card and OGL 4.1 AMD HD 5770 and they are more inexpensive everyday, so when your new game arrives i bet DX11 cards will be the norm.

About the guy that said Id uses OpenGL on the X360, that is not true even tough the new idtech5 engine is still OpenGL that is only on the PC and on the PS3, the engine on the X360 uses a similar render to D3D9 (dx9), why? Because the Microsoft console only supports directX.

To the ones that have doubts about the new DirectX 11 version here is a explanation.

Dx11 is a evolution of dx10 that was a rewrite of the dx9 API.

Dx11 supports dx9, dx10/.1 and obviously dx11 cards, this is to say that if you make a dx11 ONLY render for your engine, dx9 and dx10/.1 users will still be able to play your game, a dx11 OS like W7 or Vista is required though. Why is this possible? May you ask, is possible because dx11 was made in a way that is able to disable features to adapt to the users hardware, for example if a user has a dx9 GPU, them dx11 will disable all features minus the ones supported by the old GPU, the same for a dx10 card.

**Tanshaydar** · 04-13-2011, 11:07 PM

(04-13-2011, 09:55 PM)Argoon Wrote: About the guy that said Id uses OpenGL on the X360, that is not true even tough the new idtech5 engine is still OpenGL that is only on the PC and on the PS3, the engine on the X360 uses a similar render to D3D9 (dx9), why? Because the Microsoft console only supports directX.

That guy is me and I suggest you to use Google. John Carmack said in one of his interviews that they've been asked how they implement OpenGL games for Xbox360, and he said they're using an API which works similar to D3D.

**Argoon** · 04-13-2011, 11:25 PM

Sorry if i didn't said you nick on my post but i really didn't knew it, i add no intention of offending you. About the idtech5 on X360 maybe you didn't realized it but you gave me reason on your on post Wink

"and he said they're using an API which works similar to D3D" he never said they are using OpenGL on the X360, Microsoft wouldn't allow it, D3D is a Microsoft invented API so they ONLY support that API on the X360, or even the ability to code to the metal and go around the API (To tap the maximum power of the hardware) , and i bet this is what John Carmack is doing for the X360 version.