Cemetery Optimization

Preview of the final product

Table of Contents

Preview of the final product

Overview

Log sheet I created for the project that tracks all my changes to the project and the FPS

Base Project

Dark, Scary, and Unoptimized, running only at 70 FPS

Remove Foliage

Looking into the Statistics, The first thing I notice is the crazy amount of the total summary of the foliage. Over 3M tris, making it the most expensive item in game performance

By removing all the grass (it's too dark to see it anyway) and keeping the rose, It immediately boosts the performance by 30 frames.

Apply LODs

Next I move on to the second expensive item in game performance, the church.

With over 350000 Triangles, making it the largest, most expansive single prop in the game. and I need to fix that.

Setting LODs

In the static mesh view, on the Details panels, there's the LOD settings, turn on the custom check box and start fine tunning the settings.

First I change the mesh size manually, I kept the original mesh at 70% tris and set it to LOD 0, and set the rest of the LOD layers.

LOD 1: 20,000 tris

LOD 2: 10,000 tris

LOD 3: 70,00 tris

Other LODs

In order to reach the maximum performance I applied LOD manually to every mesh in the scene.

60,000 tris to 6000 tris, that gave me extra 2 frames

Here I am show casing the distance of LOD changes, from LOD 0 to LOD 3

Conclusion

After hitting 120 FPS I did some other smaller optimization changes to the map like trying Culling volume and adjusting the post processing, but none of those gave me the same level of improvement as applying LOD and deleting grass foliage.

Finally I added my artistic touch by turning up the Directional Light brightness because the original map was just too Dark.

Final Result

ozhang_Optimization01.mp4

Resources

Environment: https://www.fab.com/listings/ee1872f9-1876-4fad-8f1b-b7bf1cd27abd

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