[Xiao Mu learns Unity3d] Summary of 3ds Max surface reduction tools

1 Introduction

There are several 3ds Max modifiers that can help you reduce your model's polygon count.

The subtract surface tool is an editable geometry operation in 3dsmax that is used to reduce the number of surfaces in the model. By using the Surface Reduction tool, complex model structures can be simplified, making them easier to manage and render.

The surface reduction tool is usually used when complex models need to be quickly simplified, such as in areas such as animation, game characters, or architectural design. However, when using the surface reduction tool, you also need to pay attention to maintaining the consistency of the overall shape and proportion of the model and avoiding the problem of excessive surface reduction resulting in loss of details.

The following test environment: 3dsmax 2018

2. "Optimize" modifier

Use the Optimize modifier to reduce the number of faces and vertices in an object. This simplifies geometry and speeds up rendering while still preserving an acceptable image. "Before/After" readings give precise feedback on reductions as each change is made.

The optimization modifier is personally recommended. It can automatically reduce the number of faces according to the structure that needs to be supported. The number of faces is controlled through the parameter item "face threshold" shown below. The higher the parameter, the lower the number of faces; the lower the parameter. , many faces.

• The face threshold is: 0
  

• The face threshold is: 5
  

3. "Professional Optimization" modifier

The ProOptimizer modifier lets you select objects and optimize them interactively.
The ProOptimizer feature is an optimization tool that helps you reduce the number of vertices (and therefore the number of faces) in an object while maintaining the object's appearance. Its options allow you to maintain material, map, and vertex color information in optimized models.

Optimizing objects reduces the scene's memory requirements, simplifies the model because the object has fewer faces, and increases the speed of viewport display and shortens render times.

After the professional optimization modifier is also added to the model, click "Calculate" to get the relevant number of vertices, which can be controlled through the vertex percentage parameter as shown in the figure below.

• Vertex % is: 100
  
• Vertex % is: 30
  
  The batch ProOptimizer tool can be used to optimize multiple scene files simultaneously. You can optimize 3ds Max (MAX) or Wavefront (OBJ) files.
  

4. "Multi-resolution" modifier

The Multi-Resolution modifier reduces the memory overhead required when rendering a model by reducing the number of vertices and polygons. This is useful not only within 3ds Max, but also for content creators who export models for use outside of 3ds Max (for example, web-based 3D applications). Multi-Resolution has several advantages over the Optimize modifier, including faster operation and the ability to specify reductions as precise percentages or vertex counts.

• Select the object. Modify panel > Modifier List > Object Space Modifier > Multiresolution
• Standard menu: Make selections. > Modifiers menu > Mesh Editing > Multi-Resolution
• Enhanced menu: Make selections. > Modifiers menu > Geometry (Convert to Mesh) > Multiresolution

When using the Multi-Resolution modifier to refine a mesh, map channels are preserved.

After selecting the model, find the MultiRes modifier in the modifier list, then click "Generate" at the bottom, and then control the number of faces through the "Vertex Percentage" parameter.

• Vertex Percent: 100
  
• Vertex percentage: 10
  

5、Polygon Cruncher

https://www.mootools.com/en/software/polygon-cruncher
https://apps.autodesk.com/3DSMAX/en-us/Detail/Index?id=8133855916155682882

Polygon Cruncher is a 3D simplification software that takes place inside your 3D pipeline. Whether your activity is related to architecture, video games, CAD, 3D printing or history (3D scanning), Polygon Cruncher offers solutions to simplify 3D assets.

3D models often have unnecessarily complex geometries that can be simplified without compromising detail and model quality.

Some new technologies generate so many polygons that the results are difficult to use, such as 3D scanning.

5.1 Tool introduction

Polygon Cruncher is available in different versions depending on your specific needs:

• Plug-ins integrated into 3DS Max, Maya, Lightwave or bundled with 3DBrowser to increase productivity
• Command line version for automatically simplifying 3D meshes using MagicCruncher on a web server.
• Standalone version that combines optimization and normal baking in one tool. It supports a wide range of 3D standard formats (FBX, GLTF, STL, Modo, Cinema4D, Sketchup, Blender, etc.), making it usable in Revit, ArchiCAD, Modo or Cinema 4D environments, etc.
• Polygon Cruncher SDK version for tighter integration with your specific tools.
  

5.2 Download and install

https://www.mootools.com/en/download?id=1

5.3 Usage testing

After opening a model file, perform surface reduction operation:

Continue surface reduction:

6、Simplyon

https://www.simplygon.com/

Simplygon is a platform that allows 3D assets such as models and textures to be optimized for different purposes with no (or minimal) manual effort. You can use Simplygon to create LOD chains, reduce draw calls, combine multiple high-precision models into a lower-overhead model, optimize scenes for specific viewing angles, remove invisible geometry, and more.

6.1 Tool introduction

• Features
  
• Function
  
• price
  

6.2 Download and install

https://www.simplygon.com/downloads
Run the downloaded installation package SimplygonSDK_10.2.10100.0.exe. The initial interface is as follows:

Select license:

License installation successful:

Program installation successful:

6.3 Usage testing

• ship1:
  
• lod2:
  

7、FAQ

7.1 Display the number of points and faces in 3dmax

(1) Click the + sign, and then you can see the configuration window:

(2) Click the configuration viewport, and then a statistics button will appear. Click it

to select the required parameters:
1. Select Triangle Count
2. Select Total + Select
3. Select to display statistics in the active viewport.
4. Click Confirm.
After confirmation, you can see the data in the upper left corner of the view:

Conclusion

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