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In computer graphics, tessellation is the dividing of datasets of polygons (sometimes called vertex sets) presenting objects in a scene into suitable structures for rendering. Especially for real-time rendering , data is tessellated into triangles , for example in OpenGL 4.0 and Direct3D 11 .
ATI TruForm was a brand by ATI (now AMD) for a SIP block capable of doing a graphics procedure called tessellation in computer hardware. ATI TruForm was included into Radeon 8500 (available from August 2001 on) and newer products.
Tessellation was officially specified in the major API's starting with DirectX 11 and OpenGL 4. TeraScale 1 based GPU's (HD 2000, 3000 and 4000 series) are only conformant to Direct3D 10 and OpenGL 3.3 and implements therefore a different tessellation principle which uses vendor specific API extensions. [11]
The Radeon HD 7000 series, codenamed "Southern Islands", is a family of GPUs developed by AMD, [9] and manufactured on TSMC's 28 nm process. [10]The primary competitor of Southern Islands was Nvidia's GeForce 600 series (also manufactured at TSMC), which shipped during Q1 2012, largely due to the immaturity of the 28 nm process.
As of July 2017, the Graphics Core Next instruction set has seen five iterations. The differences between the first four generations are rather minimal, but the fifth-generation GCN architecture features heavily modified stream processors to improve performance and support the simultaneous processing of two lower-precision numbers in place of a single higher-precision number.
If a tessellation shader is in the graphics processing unit and active, the geometries in the scene can be subdivided. The calculated geometry is triangulated (subdivided into triangles). Triangles are broken down into fragment quads (one fragment quad is a 2 × 2 fragment primitive). Fragment quads are modified according to the fragment shader.
AMD HIP SYCL / Intel DPC++ Apple Metal Texture Streaming (Out-of-Core) ... Adaptive Tessellation Instancing Camera Culling Deep Pixel Rendering Fisheye Stereo
The Xenos is a custom graphics processing unit (GPU) designed by ATI (now taken over by AMD), used in the Xbox 360 video game console developed and produced for Microsoft. Developed under the codename "C1", [ 1 ] it is in many ways related to the R520 architecture and therefore very similar to an ATI Radeon X1800 XT series of PC graphics cards ...