Vulkan Samples

This repository holds many samples, showing various aspect of Vulkan, debugging tips and usage of other Nvidia tools.

Most of the samples have for starting point, the base_sample sample. They are applying a few modifications to that base sample, by deriving from it, to illustrate the modifications required to enable the feature or what need to be demonstrate.

Each sample have its own documentation written in Markdown describing what was modified and where to get more information.

Build

Easy Method (Windows)

Clone this repository

git clone https://github.com/nvpro-samples/vk_samples.git

1. Deploy.bat : pull and update all dependencies.
2. Build.bat : build all projects in release and optionally to debug.
3. Install.bat : copy the binaries and dlls to the _Install directory.

Hand Made

git clone --recursive --shallow-submodules https://github.com/nvpro-samples/nvpro_core.git
git clone https://github.com/nvpro-samples/vk_samples.git

Generate solution

cd vk_samples
mkdir build
cd build
cmake ..

Note: If there are missing dependencies in nvpro_core, run the following command in nvpro_core directory.

git submodule update --init --recursive --checkout --force

Extra SDK

Some samples depend on other SDKs. They are only required if you intend to build these projects.

• OptiX 7.3+ : OptiX denoiser
• Cuda 10.x : OptiX denoiser
• Nsight Aftermath : Aftermath

Samples

Base Sample

Extensions: VK_KHR_ray_tracing_pipeline, VK_KHR_acceleration_structure, VK_KHR_ray_query, VK_KHR_deferred_host_operations, VK_KHR_buffer_device_address

This is a simple but complete Vulkan sample. It loads glTF scenes and renders using rasterizer or ray tracer. Note, at some point, the other samples were created from this one.

Aftermath SDK

Extensions: VK_NV_device_diagnostics_config, VK_NV_device_diagnostic_checkpoints
Adding Aftermath SDK to automatically generate GPU crash dump when a there is a device lost. Dumps are written before the computer crashes and can be inspected in Nsight Graphics.

Inherited Viewport

Extensions: VK_NV_inherited_viewport_scissor
Using the inherited extension to avoid re-generating multiple recorded command buffers for different viewport sizes.

Multi-Sampling Anti-Aliasing (MSAA)

Using multi-sampling anti-aliasing in efficient way for the rasterizer.

Shader Debug Printf

Extensions: VK_KHR_shader_non_semantic_info

Adding debug printing information directly in the shader code.

OptiX Denoiser

Extensions: VK_KHR_synchronization2, VK_KHR_external_memory

Using the OptiX denoiser on the path traced image to remove residual noise.

HDR sampling

Extensions:

High Dynamic Range image sampling is added to the base sample for both raster and ray trace, using multiple importance sampling acceleration structure and convoluted cubemaps.

LICENSE

Copyright 2021 NVIDIA CORPORATION. Released under Apache License, Version 2.0. See "LICENSE" file for details.