NVIDIA Could Capitalize on AMD Graphics CoreNext Not Supporting Direct3D 12_1

唉 冇眼睇 唔識英文

http://www.techpowerup.com/21319 ... -direct3d-12-1.html

AMD's Graphics CoreNext (GCN) architecture does not support Direct3D feature-level 12_1 (DirectX 12.1), according to a ComputerBase.de report. The architecture only supports Direct3D up to feature-level 12_0. Feature-level 12_1 adds three features over 12_0, namely Volume-Tiled Resources, Conservative Rasterization and Rasterizer Ordered Views.

Volume Tiled-resources, is an evolution of tiled-resources (analogous to OpenGL mega-texture), in which the GPU seeks and loads only those portions of a large texture that are relevant to the scene it's rendering, rather than loading the entire texture to the memory. Think of it as a virtual memory system for textures. This greatly reduces video memory usage and bandwidth consumption. Volume tiled-resources is a way of seeking portions of a texture not only along X and Y axes, but adds third dimension. Conservative Rasterization is a means of drawing polygons with additional pixels that make it easier for two polygons to interact with each other in dynamic objects. Raster Ordered Views is a means to optimize raster loads in the order in which they appear in an object. Practical applications include improved shadows.


Given that GCN doesn't feature bare-metal support for D3D feature-level 12_1, its implementation will be as limited as feature-level 11_1 was, when NVIDIA's Kepler didn't support it. This is compounded by the fact that GCN is a more popular GPU architecture than Maxwell (which supports 12_1), thanks to new-generation game consoles. It could explain why NVIDIA dedicated three-fourths of its GeForce GTX 980 Ti press-deck to talking about the features of D3D 12_1 at length. The company probably wants to make a few new effects that rely on D3D 12_1 part of GameWorks, and deflect accusations of exclusivity to the competition (AMD) not supporting certain API features, which are open to them. Granted, AMD GPUs, and modern game consoles such as the Xbox One and PlayStation 4 don't support GameWorks, but that didn't stop big game devs from implementing them.
Source: ComputerBase.de

大約係話AMD同唔到DirectX 12
NV可以

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唔識英文,但無眼睇

Volume-Tiled Resources 基本上就係用黎減vram,但有D人話11_3已經有,文中話要12_1 先有

Conservative Rasterization 係畫pixel 畫得好d? 唔好突咁多出黎咁?? 有d類似AA

ROV 畫透明野畫得好D

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AMD RIP
淨低9系用TTX生存到

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其實唔識英文可以睇圖


篇野主要講就係老黃可能用12_1 的功能黎多次hairwork 2.0

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古唔到AMD唔係死係老黃手上,而是死係微軟手上
係而家唔支援咋。將來可以就ok啦
老實說AMD死左最大鑊都係我地(唔理你你A粉定N粉)

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唔知,但暫時未有人用

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