Polycount optimization process: WANNA watch case

Introduction

A client provided a watch model containing 313,354 polygons. Any project intended for use in WANNA studio must comply with 130,000 polygons limitation.

Note. WANNA Studio supports instancing, so instanced objects do not contribute to the total polygon count. However, there is a maximum limit of 105 primitives per scene.

Optimization workflow:

Analyze the model & remove unnecessary elements

• Identify and remove any hidden or invisible components that do not affect the visual integrity of the model.
  In this specific watch model, the internal mechanical parts contain over 100,000 polygons, which can be safely removed without affecting the appearance in VTO.
   

• If the model has repeated parts that can be replaced with instances, use them to reduce the polygon count.

Optimize topology

• Identify areas where polygon density is too high and can be reduced.
• For VTO purposes, the back side of the watch will be in direct contact with the wrist, so high detail in this area is not needed.
• Back sides of watch hands, indices, and numerals, along with other non-visible elements, can be deleted or highly optimized.

• Bracelet links, straps, and clasps may have unnecessarily dense geometry and should be optimized.

• Bevels (fillets) are often modeled with an excessive polygon count; these can be simplified without compromising quality.

• In some cases, remodeling certain elements from scratch could provide a faster and higher-quality optimization result.

Verify polycount & test in the Studio

• Once the desired polycount is reached, the model should be uploaded to the studio to check for shading or texture issues.