- #Hardware tiled resources tier 2 how to
- #Hardware tiled resources tier 2 driver
- #Hardware tiled resources tier 2 full
- #Hardware tiled resources tier 2 software
Some game developers model terrain surfaces as large as 128K by 128K. In practice, all 1GB would rarely need to be referenced in a single rendering operation. An image that is 16384 wide by 16384 tall and 4 bytes per pixel would consume 1GB of video memory (and adding mipmaps would double that amount). This is just one issue that makes the use of large memory allocations difficult in Direct3D without tiled resource support.ĭirect3D 11 supports Texture2D surfaces with up to 16384 pixels on a given side.
#Hardware tiled resources tier 2 full
There is no demand faulting in the graphics system either, so potentially a lot of excess GPU memory must be used to make full subresources mapped before a rendering command that references any part of the memory is executed. In reality, without tiled resource support, the graphics system can only be informed about the memory that needs to be mapped on the GPU at subresource granularity (for example, a range of full mipmap levels that could be accessed). The graphics system would then only bother to ensure that the needed memory is mapped on the GPU without paging in too much memory. Ideally, the app could inform the graphics system about this need. Suppose an application knows that a particular rendering operation only needs to access a small portion of an image mipmap chain (perhaps not even the full area of a given mipmap). In the context of tiled resources, "mapping" refers to making data visible to the GPU. The graphics system only exposes the ability to manage the mapping of allocations at this subresource granularity. For a Texture (for example, Texture2D), each mip level is a subresource for a texture array (for example, Texture2DArray), each mip level at a given array slice is a subresource. For a Buffer, the entire Buffer is the subresource. In a graphics system (that is, the operating system, display driver, and graphics hardware) without tiled resource support, the graphics system manages all Direct3D memory allocations at subresource granularity.
#Hardware tiled resources tier 2 how to
Microsoft has stated that the Feature level 12_2 works on “NVIDIA GeForce RTX and NVIDIA Quadro RTX GPUs” but are not sure about whether the Ampere-based GeForce RTX 30 series graphics card will be compatible or not.Tiled resources are needed so less graphics processing unit (GPU) memory is wasted storing regions of surfaces that the application knows will not be accessed, and the hardware can understand how to filter across adjacent tiles.
#Hardware tiled resources tier 2 driver
In order to use feature level 12_2, users need to have a WDDM 2.0 driver and a compatible GPU which will also include current-gen AMD, the NVIDIA hardware and also, the upcoming RDNA 2 architecture based GPUs of AMD will also have full feature level 12_2 support. Some new features have been added including the Shader Model 6.5, Variable Rate Shading tier-2, Resource Binding tier-3, Tiled Resources tier-3, Root Signature tier-1.1, DXR 1.1, Write Buffer Immediate Support Flags, Conservative Rasterization tier-3, GPU Virtual Address Bits resource expansion and other Direct3D raster rendering features. This is completely different from DirectX 12 Ultimate as according to Microsoft, DirectX 12 Ultimate is not the feature level 12_1 and it actually means having a DirectX Raytracing, Mesh Shaders, Sampler Feedback and Variable Rate Shading.
Well this time, they have announced the new DirectX 12 feature level 12_2 specification along with some API-level features for DirectX 12 feature level 12_1. Microsoft has always tried to impress the customers with the best specs in their products.
#Hardware tiled resources tier 2 software
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