# Indirect Rendering and GPU Culling This sample implementes a procedural (indirect) Scriptable Render Pass, which is instantiated and enequeued within the Univesral Render Pipeline.

Indirect Drawing allows to procedurally generate geometry and drawing parameter data using compute shaders. This technique can be used in order to massively-parallelize the transformation, culling, and rendering of complex geometries. In this example, a compute shader is used in order to procedurally generate and transform a large amount of vertices and mesh instances. A final instance-based culling dispatch is executed once per frame, in order to procedurally render any visible instances:

## Renderer Feature You can enable and configure the procedural rendering pass by adding a "Procedural Rendering Feature" to the active UniversalRenderer.asset:

The renderer feature's settings can be used to load an input mesh, configure the per-instance mesh count, and set the total instance count. Optional heightmap, wind deformation and camera-based repulsion can be enabled. Github: https://github.com/eldnach/indirect-rendering