Struct Renderer 

pub struct Renderer { /* private fields */ }

Renderer backend for imgui using SDL3 GPU.

This renderer performs the following tasks:

• Initializes a pipeline with blending suitable for ImGui
• Uploads the ImGui font atlas as a GPU texture
• Creates GPU buffers every frame for ImGui vertex/index data
• Issues draw calls using ImGui’s draw list

Implementations

impl Renderer

pub fn new( device: &Device, window: &Window, imgui_context: &mut Context, ) -> Result<Self, Box<dyn Error>>

Creates a new ImGui SDL3 renderer.

This function builds a graphics pipeline from SPIR-V vertex/fragment shaders, configures the vertex input state to match DrawVert, and uploads the ImGui font atlas.

pub fn render( &mut self, device: &Device, command_buffer: &mut CommandBuffer, color_targets: &[ColorTargetInfo], imgui_context: &mut Context, ) -> Result<(), Box<dyn Error>>

Renders the current ImGui draw data into the window.

This function:

• Builds and submits GPU buffers from draw data
• Sets an orthographic projection matrix
• Issues indexed draw calls