Abstract
With the widespread use of handheld devices, 3D graphics processing capability has become a differentiating factor in mobile SoC design. This paper presents the design of a fully programmable 3D graphics processor for mobile applications. We adopt single instruction, multiple data (SIMD) architecture and multi-thread scheduling to utilize data and instruction parallelism in the unified shader. And in rendering engine design, we propose distributed clipping and hierarchical tile-based rasterization to improve the speed. Hardware simulation results show that the triangle processing speed is improved by 33.3% from six to four clock cycles. And the synthesis results in SMIC 40 nm technology show that the maximum frequency is 600 MHz, and the triangle processing speed is 150 MTri/s.
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