Diskuze o hardware, software a overclockingu
https://forum.pctuning.cz/
nj. tak Diit u mě skončil dnem kdy no-x reagoval slovy co mám na památku v podpisu.Adam Vágner píše: Já fakt nechápu, proč má no-x potřebu takhle ohýbat realitu a furt si jede dál v těch včerejších kolejích.
ona ale ta část je podstatná ne-li rovnou nejdůležitější, protože se díky tomu značně urychlil vývoj nového API. (bez ohledu na další vlastní úpravy)Adam Vágner píše:Jo, to je právě to, co jako obvykle udělal. Zase vybral ty "nejdůležitější části" z toho, co je uvedeno ve zdroji.
Vážně ne?AnanadTech - Next Generation OpenGL Becomes Vulkan: Additional Details ReleasedMantle’s new focus in turn is going to be a testbed for future graphics API development. Along with releasing the specifications for “Mantle 1.0”, AMD will essentially keep the closed beta program open for the continued development of Mantle, building it in conjunction with a limited number of partners in a fashion similar to how Mantle has been developed so far.
In fact Khronos has confirmed that AMD has contributed Mantle towards the development of Vulkan, and though we need to be clear that Vulkan is not Mantle, Mantle was used to bootstrap the process and speed its development, making Vulkan a derivation of sorts of Mantle (think Unix family tree). What has changed from Mantle is that Khronos has gone through a period of refinement, keeping what worked in Vulkan and throwing out portions of Mantle that didn’t work well – particularly HLSL and anything that would prevent the API from being cross-vendor – replacing it with the other necessary/better functionality.
Meanwhile from a shader programing perspective, Vulkan will support multiple backends for shaders. GLSL will be Vulkan’s initial shading language, however long-term Khronos wants to enable additional languages to be used as shading languages, particularly C++ (something Apple’s Metal already supports). Bringing support for other languages as shaders will take some effort, as those languages will need graphics bindings extended into them.
poznámka : gr = Mantle API vk = Vulkan APIJust going through the functions:
vkBeginCommandBuffer == grBeginCommandBuffer
vkCmdDbgMarkerBegin == grCmdDbgMarkerBegin
vkCmdPipelineBarrier == ???
vkCmdDbgMarkerEnd == grCmdDbgMarkerEnd
vkEndCommandBuffer == grEndCommandBuffer
vkCreateFence == grCreateFence
vkCreateBuffer == ???
vkGetObjectInfo == grGetObjectInfo
vkQueueSubmit == grQueueSubmit
vkAllocMemory == grAllocMemory
vkBindObjectMemory == grBindObjectMemory
http://www.reddit.com/r/linux_gaming/co ... an_mantle/Now that doesn't mean Vulkan support would just be a matter of renaming functions to have a port. But this means Mantle was very likely used as a basis for Vulkan development.
Myslim ze i novy Shield ti da odpoved. Ne nadarmo Valve s nV do tohohle rezou.havli píše:Hrat na mobilech nebo tabletech cokoliv narocnejsiho nez sachy / karty / angry birds je nesmysl... a tim padem neni na tyhle veci potreba OGL ani nic dalsho.Hladis píše:Mobilni herni sféra....... Unreal bude podporovat DX12 i Vulkan.
Q: plans for console support?
A: I can't comment on other people's plans, but the outlook is good.
Q: is Vulkan going to support existing hardware?
A: it will be limited to hardware that already exists and has exists for a wall. We set the bar at OpenGL 4.1. Whether you will get drivers from the vendors depends on the pressure you put on them, but we've seen good indications so far.
Hm takze teoreticka moznost kombinovat GeForce/Radeon. Ale na 99% to aj ostane teoreticka moznost.vkGetMultiGpuCompatibility(gpuA,gpuB, &compatInfo);
Compatibility info indicates
-
Full sharing, sharing of specific resources, or no compatibility at all.
hej low level by som si predstavoval zapisovat do nejakych registrov na GPU aby som nieco vykreslil. oproti terajsiemu DX/OGL to fakt nie je az o tolko low level.Vulkan is not “low level” – just a better abstraction of modern hardware
zajímavé je, že na stránce 56 píšou tohle :nou píše:hej low level by som si predstavoval zapisovat do nejakych registrov na GPU aby som nieco vykreslil. oproti terajsiemu DX/OGL to fakt nie je az o tolko low level.Vulkan is not “low level” – just a better abstraction of modern hardware
© Copyright Khronos Group 2015 - Page 56
GFXBench 5.0
Entirely new engine aimed at benchmarking low-level
graphics APIs (Vulkan, DX12, Metal)
Díky za ty linky, jdu to rovnou prostudovatnou píše:...
Kód: Vybrat vše
grCreateDeviceThere are a lot of things which have previously gone on behind the scenes which are now exposed to the programmer, meaning uploading a texture isn't so simple. According to the talk, to upload a texture:
- You have previously requested a block of gpu memory, probably over 1gb.
- You ask the Driver, "So I have this texture in this colour format with the dimensions of X by Y pixels, how much memory do I need to upload it?"
- The answer may not be what you expect, maybe because you asked for a RGB texture while the GPU can only sample RGBA textures, or the driver needs to pad your texture dimensions to multiples of 32.
- You choose an address within your massive block of gpu memory big enough to store the uploaded texture.
- You pass that address and your texture data to the driver, it converts the texture to whatever format is needed and swizzles it (for optimum cache usage) into the address you specified.
- The texture is now "uploaded". Just point a shader at that memory later.
Kazdopadne pokud to ma byt univerzalni, tak proste není mozny jit az tak low, tedy psat to primo na telo.Mantle goes as low as is reasonably possible, with minimal levels of abstraction between the code and the hardware. Mantle is for all practical purposes an API for doing bare metal programming to GCN.