Render Passes. In each of the rendering pass, the associated render task can be customized using shaders. In GPU, except rasterizer unit, it also includes ray tracing unit. Changkun Ou. 2023. Go on GPU ○ Costs of Cgo ○ Fundamental infrastructure ○ Common abstraction ○ Writing and debugging shaders ● Conclusion and outlooks 42 Changkun Ou. 2023. Go on GPU. GopherChina 2023. Session "Foundational GopherChina 2023. Session "Foundational Toolchains" Challenge 4: Writing and Debugging Shaders Syntax of Shaders are based on variation of C/C++. It is not possible to debug in a regular manner The

instructions at a pixel as it flies by CUDA 12 (2022) CUDA 11 (2020) CUDA 7 (2015) ‘Moar shaders!’ Shaders12 more math, allocators, non-literal params, … new/delete, virtual, lambdas, try/catch

graphics OpenGL ES 2.0 - 2007 Programmable Shaders OpenGL SC 1.0 - 2005 Fixed function graphics safety-critical subset OpenGL SC 2.0 - 2016 Programmable Shaders Safety-critical subset Vulkan 1.2 - 2020

October 2023 20 Memory isn’t the only critical resource • File handles • Locks • Sockets • Shaders • …Resources and Errors • A resource is something that must be acquired and released after use