FAQ (frequently asked questions)

A.

Viz4D is not only a 3D viewer, it also uses proprietary software and powerful cloud server to perform a series of very difficult and time-consuming tasks such as:

1. Precise polygon reduction for each model, super powerful GPU compression for every map… and optimization of all elements in 3D scenes with a proprietary solution.

2. Convert specialized materials like Vray, Corona... and create multiple LODs for UV maps with maximum coverage, minimum seams and ideal density ratios for each 3D model.

3. Compress all textures to a GPU-compressed format (suitable for all platforms Android, iOS, Windows...) using Viz4D's technical know-how to produce super-small sizes without artifacts and color noise.

4. The unique optimization techniques will be applied on thousands of elements in a 3D scene, in every stage from estimating minimum UV density, reducing draw-calls... to methods of distributing 3D data on each type of terminal.

5. Provides a 3D designer-friendly Editor with a variety of professional post-processing effects that allows you to configure or refine (lighting, materials) each 3D model to create endless variations.

6. The final 3D content is hosted on our cloud server so you don't have to deal with its complexity. Also, all data is served using Global CDN, making it loads quickly from anywhere in the world.

A.

Ownership is attached to the uploaded datas and security is assured by the fact that your uploaded original 3D scenes will automatically be removed from our server after processing. The right to exploit data after processing belongs to you: you have full rights to edit, delete, grant access ... for your interactive scenes.

(After we finish processing and you agree to publish, we will delete your original 3D scene).

A.

The architectural design is completely modeled in 3D but only introduced to everyone with some images. It is a huge waste of potential. Viz4D has successfully developed a fully automated processing process, integrating seamlessly with the architect's current workflow to bring the entire 3D space to end-use mobile devices.

A.

Upload only one scene per order. Currently we support all lighting and materials of VRay and Corona in 3dsMax

A.

You do not know and cannot determine the ideal level of optimization manually (with eyes and sliders). The best way is for Viz4D to do that by uploading slightly redundant polygons models.

A.

    Important Requirements:

  • No flipped faces: Flipped faces will receive incorrect lighting, usually shown as black in final result. Tutorial: Fixing Flipping Normals
  • No overlapping faces: Overlapped faces causes flickering surfaces (Z-Fighting). Tutorial: Fixing Overlapping Faces
  • The scale must be exactly like the real world

    Suggestion for optimal performance and load time:

  • Use as few Materials as possible. Similar materials should be reused.
  • Minimize the polygon count:
    For high poly meshes, consider remove or switch to alternative object with lower poly
    count if possible.
    Delete obscured, unused faces.
  • Delete outside of wall, ceiling, floor, etc. if you want to see through it in bird view mode.
  • Focus on designing the overall function, using just enough decorative items
  • Avoid complex materials: You should prioritize using simple material (VRayMtl, CoronaMtl, PhysicalMtl), avoid complex material types (like Blend, Layered...). Although we will try to convert all type of materials, but the results of these complex materials are more error prone (you can always fix the material in editor later if needed).

A.

You will receive a notification after Viz4d confirms your order.

In about 8 hours you will receive an email with a link to the processed scene, you download and render the lightmaps according to the dimensions we recommend in there. Once done, upload the lightmaps, fine-tune the materials, add information ... and publish.

A.

Hiring a powerful server to render in the cloud is very expensive and wastes all the rendering hardware, software, and skills you currently have.

You all have software and plugins to render in a powerful PC. When rendering the lightmaps yourself, you will also leverage your skills to find the most beautiful results or to create multiple light variations from a single original scene.

A.

Viz4D's algorithm always tries to optimize as much as possible, but some objects such as plant, grass,fur, macrame ... will not reduce polygon much. You should avoid losing money in vain. Avoiding these also reduces load time and increases interaction performance for end users

- The number of lightmaps that Viz4D has to unwrap UV and you have to render depends on the total surface area of ​​the 3D scene, so you need to reduce the surface area to a minimum by: Delete obscured, unused faces.( remove outside of wall, ceiling, floor, etc...if not in use).

- To improve performance and reduce load time: Use as few Materials as possible. Similar materials should be reused.

A.

Viz4D already has a powerful optimization system that will optimize your scene automatically, so you don't have to do it manually.
But to ensure high performance even on mobile, you should try to remove unneccesary models in your scene before uploading.

A.

GOAL:
"To empower web-based 3D interactive Web-app creation for any visual person (interior designer or architect), regardless of their skill level".
Viz4D's goal is very difficult, and will have to interfere with the original design data, so no one has ever gone in this direction. Any real-time solution available, including those from leading companies like Autodesk, Unreal or Chaos, all choose the easiest way that requires end users to have an expensive PC if they want to interact in real-time 3D. Only Viz4D, newly established, had to choose this way to hope to have a foothold in the market.

SOLUTION:
To realize its goal, Viz4D has deployed a cloud-based software system (in SaaS form) to do everything for you from creating 3D interactive web-apps to storing and distributing data. This Viz4D solution can help you reduce costs from a few dozen times to hundreds of times compared to traditional manual methods: Eliminate real-time experts, IT staff and many software licenses.

TOOLS:
Viz4D has developed a series of specialized software for use in its SaaS service:
1. Viz4D not only automatically optimizes the exact mesh, material, UV and map... of each model in the 3D scene into multiple LODs, but also optimizes every stage of the processing: from estimation minimum UV density, reduced calls... to methods of delivering 3D data on each terminal type.

2. Automatic V-Ray, Corona material conversion: support more complex material types than Unreal Datasmith.

3. Compress all textures to a GPU-compressed format (suitable for all platforms Android, iOS, Windows...) using Viz4D's technical know-how to produce super-small sizes without artifacts and color noise like other solutions.

4. Automatically prepare UV lightmap optimally for large Archviz scenes: Our UV maps will include multiple LODs with maximum coverage, minimum seams and ideal density ratios for each 3D model.

5. Viz4D Plugin: will help you check design errors, estimate processing time, set priority UV density ratio for each template before uploading.

6.Provides a 3D designer-friendly Editor with a variety of professional post-processing effects that allows you to configure or refine (lighting, materials) each 3D model to create endless variations.

7.The final 3D content is hosted on our cloud server so you don't have to deal with its complexity. Also, all data is served using Global CDN, making it loads quickly from anywhere in the world.

8. And many other stages are also programmed to handle automatically.

9. All Viz4D's softwares are processed on rented cloud workstations on the infrastructure similar to: AWS, Azure, Google Cloud... with quite high rental rates: Can't test, tune, and reprocess multiple times until the results are as good (like you would on local PC). Viz4D was forced to develop quality assurance algorithms for each of its software to ensure that all tasks were successful in one go.

A.

Users of Sketchup, Revit and other 3D modeling applications can temporarily use Viz4D by exporting files to 3dsMax (and set lighting and materials with VRay or Corona in 3dsMax)

VRay for Sketchup will be supported directly by the end of next year.

A.

Viz4D is run by VR3D.vn, a studio specializing in optimization and automation technologies in real-time visualization.

Having completed many projects since 2014 giving us the know-how to creating the most democratic solution for 3D interaction on the web.


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