MeshletRendering

Meshlet Rendering with Mesh Shader

Code Name: MeshletRendering

Description

In this example, a glTF model is divided into meshlets using a mesh optimizer and rendered using a mesh shader. Each meshlet is also painted with a different color.

Output

Controls

Input	Action
W/A/S/D	Move the camera
Mouse	Look around with the camera
Esc	Close the window

Application Parameters

Settings

Parameter / Key	Type	Usage in Code	Description	Default Value
AppSettings.ClearColor	VkClearColorValue	AppSettings::ClearColor	Background color of the screen
AppSettings.MouseSensitivity	float	AppSettings::MouseSensitivity	Mouse sensitivity value
AppSettings.CameraSpeed	float	AppSettings::CameraSpeed	Speed of the camera

Learning Objectives

• Understanding meshlet-based rendering with mesh shaders
• Loading and optimizing glTF models with meshlets

Shader Status

Shader Type	Status	Notes
GLSL	✅
HLSL	❌	Will be implemented.
Slang	❌	Will be implemented.

Theoretical Background

None

Extensions Used

Instance

Window system-dependent extensions:

• VK_KHR_surface
• VK_KHR_win32_surface (Windows)

Device

• VK_KHR_swapchain
• VK_KHR_spirv_1_4
• VK_EXT_mesh_shader
• VK_KHR_shader_float_controls