Getting started part 1: Upload scene by Viz4D Plugin

In this part, we’re gonna upload scene from 3dsMax to Viz4D with our plugin.

Step 1. Open plugin and validate scene

• At the main menu bar, open the Viz4D menu and click on the “Open Viz4D Plugin” item.

• Login to your account.
• Then you must click the “Validate scene” button, for Viz4D Plugin to automatically detect unsupported features and recommend a solution. It’ll take a few minutes for the first validation.

• After clicking, a window will appear. This window has 4 sections:
• Important : Must be solved. If not you can’t upload scene to Viz4D.
• Warning : Should be fixed but you can ignore them. If you ignore it, the result might be different from the original scene, but mostly can be fixed manually later in Viz4D Editor.
• Advice : Nice to have, giving better optimization.
• Summary : Summarize information such as total triangle, required credit, etc.
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Tip: Right-click on any item to show commands that will help you solve problems quickly.
• After solving the problem, press “Re-validate” to update the status.

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If you used LightMix. Follow the instructions:

• You must transfer LightMix to actual lights by clicking the button “> Scene” (Corona) or “To Scene” (V-Ray).

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Warning: If you disable the light in LightMix, you must turn off that light in the scene by yourself.

• After transfer, we suggest you turn off LightMix and re-render to guarantee the light is exactly what you want.

Step 2. Fix incorrect face orientation

• Click the “Preview Backface” button to detect the back face easily. After clicking, all back faces are highlighted in green.
• In most cases, you need to choose the faces with the incorrect orientation and flip it:

• When you solved all back-face, click “Exit Preview mode” button.

Step 3. Setting Lightmap density

Lightmap Density will determine resolution of lightmap, triangles of mesh and texture size.

Our suggestion:

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For interior: 120px/m (default)

120px/m means 1m x 1m surface area is covered by 120x120 pixels lightmap. It’s good balance between quality and performance.

For interior, if you want really high quality without caring about performance of older mobile device just set the lightmap base density to 220px/m.

• For exterior: 80px/m

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For single object: 500px/m

This pixel is calculated based on object with dimensions of 0.8m x 0.8m.

• How to set Density ratio:

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After baking, if you are dissatisfied with the quality of lightmap, you can rebake the lightmap again with a different setting of Lightmap as many times as you want (free of charge). Follow this guide:

Rebake lightmap

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Render setting preset:

This is the setting used to bake lightmap. The higher the render setting, the less noisy the lightmap and the longer the baking time. It has 4 options:

Type	Description
Medium (default)	baking time is fast so sometimes lightmap appears noise but you always can rebake lightmap to remove noise
Good	good enough quality bake for final result
Ultra	ultra quality bake (usually used for fix noise in lightmap when rebake lightmap). Remember that it takes a lot of time.
[Advanced] Keep current	to use your current render setting

Step 4. Upload

• Fill out the title and description (you can re-edit this information in Viz4D Editor).
• Please make sure you have followed the steps above, especially setting density ratio. Then click the “UPLOAD SCENE” button.
• Check all things again and click the “CONFIRM UPLOAD” button.
• Now, Viz4D will automatically process your scene. When the process is complete, the window below will appear and you’ll receive a notification through email. After that, you can go to part 2.

• Don’t close this Max instance while it’s processing. You can use your PC as usual, including working on other Max instances and you can upload several scenes at a time.

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If the processing is interrupted before it is complete. Please follow this guide:

Resume interrupted process in Viz4D Plugin

Suggestions

• It would be better if your scene is at real-world scale. Some of our tools require real-world scale to operate correctly (i.e. measure tool).
• Use as few materials as possible. Similar materials should be reused. We recommend having less than 300 materials to ensure good performance on mobile. (Total materials used are written in the “Summary” section in the “Validate” window)
• Should be limited use of similar textures to MultiSubTexmap and AO because they require baking, which will make scene heavier too much.
• The mesh of objects such as grass, fur, macrame, rattan ... can not optimize much. So avoiding these meshes to reduces load time and increases interaction performance for the viewer.
• Although we support converting all types of materials, you should prioritize using simple materials. Because the results of complex materials are more likely to be different compared to the original (you can always adjust the material in Viz4D Editor later).

• Getting started part 1: Upload scene by Viz4D Plugin
• Step 1. Open plugin and validate scene
• Step 2. Fix incorrect face orientation
• Step 3. Setting Lightmap density
• Recommendation about lightmap:
• Step 4. Upload
• Suggestions