CsPaint uses the Vulkan API to render and draw graphics and text to the screen. There are multiple parts to this process, however it can be summarized into general areas. Each section involves multiple steps which will be expanded upon.

Initial setup: order dependent

Create an instance

Create a surface

Select a graphics device from the available hardware

Configuration: order independent

Load fragment shaders

Load vertex shaders

Load any other required shaders

Retrieve graphics queue

Retrieve transfer queue

Retrieve presentation queue

Retrieve swapchain

Retrieve command pool

Create command buffer

Descriptors

Create a descriptor layout binding

Create a descriptor layout

Create a descriptor pool

Allocate a descriptor set

Setup a pipeline

Create a pipeline shader stage

Create a pipeline layout (using the descriptor layout)

Create a render pass

Create fixed function pipeline

Drawing

Create vertex buffer

Create uniform buffer

Create image view which can be used as the depth buffer

Create a pipeline

Use the pipeline setup to create a graphics pipeline

Screen rendering: Call these every time the screen needs to be updated

begin command buffer

begin render pass

do drawing commands

end render pass

begin command buffer

submit command buffer