Verilog-Gpu

FPGA/Verilog implementation of a basic GPU

• fixed pipeline triangle renderer
• interpolation of vertex colour + normal
• fixed point calculations
• aiming for feature set comparable to mid/late 90's Graphics Card https://www.techpowerup.com/gpu-specs/voodoo-graphics-4-mb.c3570

Progress

Simulation

• GPU now runs in simulation in MacOS test app

Synthesis

• WORK IN PROGRESS
• Requires rewriting triangle rasterizer to remove/minimize divides & multiplies
• Requires verilog implementation of fixed point divide

Add more features

• Texture Mapping
• Improve accuracy of z buffer

Dependencies

Built on MacOS

To install with Brew:

brew install verilator cmake libpng

Build

Build with CMake

CMake targets

• TestRtl: Run unit tests on verilog designs
• Simulation: Run GPU in simulation
• Rasterizers: Compare rasterizer algorithms