# Indirect Rendering and GPU Culling
This sample implementes a procedural (indirect) Scriptable Render Pass, which is instantiated and enequeued within the Univesral Render Pipeline: https://github.com/eldnach/indirect-rendering
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.
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Realtime graphics enthusiant, currently working as a Technical Product Manager for the Unity Engine.
In this blog, I share some useful tools and personal projects to assist with Unity and realtime graphics development.
