Create ‘Particle Live’ with VRoid Studio and STYLY ~2

In this article, I will explain how to create a concert scene where a model created by VRoid Studio can sing and dance, with particle stage effects.
By understanding the basics, you can use your original model, use a different song, or use original paritcle effects and create a original concert scene.

There are 11 chapters, and there will be 4 articles in this series.

This article will be about chapter 6, and I will explain how to transfer base information such as songs and animations from the CandyRockStar Project (CRS Project).

Transfer base information (Songs, Animations) from the CandyRockStar Project (CRS Project)

We will transfer some songs, animations, particles, and shaders from the CandyRockStar Project (CRS Project), and import them to our project.

Preparation

First, we will change the MainCamera settings to be able to check stage effects more easily with the game view when playing the Editor.

Please change the Inspector settings as in the image below.

Uncheck Directional Light and deactivate it.

That is all for the settings.

Next, we will start the transferation, so download the CRS Project, and open the project in Unity 2019.3.6f1. The preparation is complete.
Click here to check which Unity versions are compatible with STYLY.
https://document.styly.cc/doc/docs/en-US/creator/creator_plugin_intro/#about-the-corresponding-unity-version

Unity-Chan “Candy Rock Star” Live Demo

https://github.com/unity3d-jp/unitychan-crs

Transfer Song

Type in “unite” in the CRS project search box, and find “Unite In The Sky(full)”.

Select it and then right click → select Show in Explorer and open “Unite In The Sky (full).mp3”.

Drag & drop the mp3 file into your created project, and the transfer of the song is done.

Transfer Character Animation

Type in “C86” in the CRS project search box, and find “C86unitychan_003_NOT01_Final”.

Select it and then right click → select Show in Explorer and open “C86unitychan_003_NOT01_Final.fbx”.

Drag & drop the fbx file into your created project, and the transfer of the animation is done.

Next, we will set the animation, and check the animation working in the Editor.

Select the “C86unitychan_003_NOT01_Final” you imported, select the Rig tab in the Inspector window, and change the Animation Type to Humanoid and Apply.

Create a new Animation Controller by Right click → Create → Animation Controller.

Double click the Animation Controller and open the Animator window, and create a New State by right click → Create State → Empty.

D&D “Take001” which you can find under “C86unitychan_003_NOT01_Final” into Motion in the Inspector window of the New State.

Finally, set an Animation Controller with VRoid, select Apply Root Motion and check that the animation works in the Editor.

Transfer Particle effects

In the CRS projects, there are particles that occur according as the character’s hand moves. We will transfer these particles too.

First, we need to prepare with these steps.

Type in “spray” in the CRS project search box, and find the spray folder, so export it.(Right click → Export Package)

Double click the Package and import it to the project. (UnityChanStage will be created under Assets)

Next, we will create the Particle.

Open GameObject → Effects → Particle System in the Editor menu.

Change the name to “Spray”, and change the Inspector settings as in the image below.

In order to change Size over Lifetime, adjust it from open editor.

There will be 4 vertices, and the Time, Value will be as in below.

?	Time	Value
1	0	0
2	0.086	1
3	0.877	1
4	1	0

Set the Renderer Mode to Mesh, click the + icon to be able to set 4 meshes, and set meshes from the Particles folder beneath the Spray folder, as in the image below.

To change the particle colors to pink, edit the Material. Select “effector01”, which is included in “Spray”, and change the Emmission in the Inspector window to pink.

D&D effector01 to Material in Renderer, and set it.

The other settings are as in below. To change effect area, click ▼ and select “Random Between two constants”.

・Start Liftime → 0.2 , 0.7
※Random Between two constants
・Start speed → 0.2 , 1.2
※Random Between two constants
・Start size → 0.03 , 0.2
※Random Between two constants
・Start rotation → -180 , 180
※Random Between two constants
・Simulation space → world
・Scaling mode → shape
・Check the following options and edit
・Emission
Rate over Time → 0
Rate over Distance → 70
・Shape
Radius → 0.04
Randomize direction → 1
・Limit Velocity over Lifetime
Speed → 0
Dampen → 0.08
・Force over Lifetime
x,y,z → -6, -6, -6
6, 6, 6
※Random Between two constants
Space → world
Randomize → Check
・Size over Lifetime
Adjust from open editor in the upper right hand
・Rotation over Lifetime
Angular Velocity → 500 , 2500
※Random Between two constants
・Renderer
Render Mode → Mesh
Mesh → effChip01
effChip04
effChip05
effChip06
Material → effector01
Trial Material → none
Render Alignment → local
Cast Shadows → on
Receive Shadows → Check

Create a Prefab from the Particle

D&D “Spray” from the Hierarchy to the Project folder, and create a Prefab. Then, change the Position and Rotation.

• Position（0, 0.01, 0）
• Rotation（-90, 0, 0）

Move the Spray Prefab to under each of the following character objects.

• J_Bip_L_Hand
• J_Bip_R_Hand
• J_Bip_R_UpperLeg
• J_Bip_L_UpperLeg
  
  

  Arranging Particle placement

Particle Transfer 2

Next, we will create a confetti particle effect.

First, the preparation steps.

Type in “confetti” in the CRS project search box, and find the Confetti folder, so export it. (Right Click → Export Package)

Double click the Package and import it to the project.

Next, we will create the Particle.

Select Create Empty in the Hierarchy, and name the created object “Confetti”, set Transform as in the image below.

Create a Particle from GameObject → Effects → Particle System within Editor, and set it as a child object of Confetti.

Set Particle as in below.

Additional Settings

Set the Renderer Mode to Mesh, click the + icon to be able to set 4 meshes, and set meshes from the Confetti folder, as in the image below.

Duplicate the created Particle with Ctrl + D, and change Transform.

Create a Directinal light as a child object of the Confetti object.(Select the Confetti object and right click → Light → Directional light)

Set the Directional light as in below.

The confetti particle is done.

Shader transfer

Next, we will tranfer the stage floor.

Type in “Visualizer” in the CRS project search box, and find the Visualizer folder, export it.(Right click → Export Package)

Export the stage object too.

Double click the Package and import it to the project.

Then, we will create the stage floor.

Create a Quad object in Hierarchy, and name it “Visualizer”.(Right Click → ３D Object → Quad)

Note:I set Transform Position x, y, z to 0

D&D the “EQfloor” mesh from the stage folder to the Visualizer object Mesh.

The Mesh Collider is unneeded, so we Remove component.

Set mesh renderer as in below. For Material, D&D “Element0” from the Visualizer folder.

Set ShaderNoneBlack to the Texture of Visualizer Shader, and we’re done.(Select → ShaderNoneBlack)

That is all for today’s article!

For the next 3rd article, I will explain how to create the stage, and how to structure the concert using a timeline.

[Related Articles]

• Create ‘Particle Live’ with VRoid Studio and STYLY ~1
• Create ‘Particle Live’ with VRoid Studio and STYLY ~3
• Create ‘Particle Live’ with VRoid Studio and STYLY ~4