Weekly progress 2/9

Jiaxing Gao
3 min readFeb 9, 2020

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This week is a new start, and I am excited to be involved in Chambers, Joseph’s interactive project. I have had a lot of discussions with Joseph over the past two weeks, and I am gradually familiar with the background of this project and Joseph’s design. Starting last week, I tried to make the first model: pole. I made a simple model for Joe to test and used this model to determine the type of model needed for the project. Since these models will run on VR and AR devices, I carefully balanced the number of polygons and visual effects.

After further discussion, I modified the specifications of the textures and models and tried to make fur.

There are two ways to make hair, using maps or using models. I chose the model approach and for this, I learned Xgen. I used the Xgen interactive creation method to comb my hair, but I encountered two problems when exporting. The first problem is that the data of the Xgen interactive grooming editor cannot be directly modified by Xgen. This is weird, but it took me some time to find the solution. The second problem is the default Xgen conversion polygon function can only make patches and the number of polygons and effects cannot meet the requirements. So, I tried multiple solutions and ended up making hair using Nurbes and extrusion.

Xgen’s convert method
Nurbs method

I know there should be one more way to create such fur in game engine — hair material. But I did not find such a function or shader in Unity. Therefore, I will not consider this solution for the time being to avoid new problems.

At present, the requirements for long-distance viewing are basically met, and if close-up viewing is required, finer modeling may be required. The number of faces of this model is about 6000 at present. I think this polygon number can meet the running requirements of VR, but using it in AR may need to further simplify the model

Next week I plan to start testing multiple rendering workflows and continue modeling.

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Jiaxing Gao
Jiaxing Gao

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