ProBuilder API - using ProBuilder from script

thanks a lot, I searched for this for 3 days, you saved my career

 

If you want CSG in Unity there are other options with full editor integration. SabreCSG and Realtime CSG are both free, excellent and easily found on Github/Asset Store

 

as I understood that these tools cannot be used in Play Mode, I need to create doors and windows in the game

 

Hi,
Is it possible to create a polyshape through the API?

EDIT: sorry, I found it (https://docs.unity3d.com/Packages/com.unity.probuilder@4.4/api/UnityEngine.ProBuilder.PolyShape.html), but would it be possible to get a simple example?

 

Ok, I got my script to build a probuilder mesh from a list of points forming the base polygon of it.

Code (CSharp):

1.  
2. IList<Vector3> pointsList = new List<Vector3>();
3. pointsList.Add(new Vector3(-12887.3f, 0, 34048.5f));
4. pointsList.Add(new Vector3(-12886.0f, 0, 34041.5f));
5. pointsList.Add(new Vector3(-12878.4f, 0, 34042.5f));
6. pointsList.Add(new Vector3(-12877.1f, 0, 34035.0f));
7. pointsList.Add(new Vector3(-12870.5f, 0, 34036.0f));
8. pointsList.Add(new Vector3(-12872.9f, 0, 34051.0f));
9.              
10. ProBuilderMesh pbMesh = ProBuilderMesh.Create();
11. Material mat = (Material)Resources.Load<Material>("Materials/BuildingDefaultMaterial") as Material;
12. pbMesh.SetMaterial(pbMesh.faces, mat);
13. pbMesh.CreateShapeFromPolygon(pointsList, 2, false);
14.  

But I'm having two problems I'm really stuck on.
First, the gameobject seems "incomplete" since the editor gizmos for moving or rotating it won't appear when the mesh is selected.
Then, there are artefacts when moving around the mesh:



If I manually move the object towards the scene center, by setting x to 13000 and z to -34000, the artefacts are gone. They are also gone if I set "cast shadows" to Off int the mesh renderer component.
Any ideas?

 

Are you sure? I recall a runtime API - if not a UI around it.

 

Hi,
The shimmer you are seeing is to do with the finite precision of the Vector3 mathematics within Unity. So it isn't specifically a Probuilder problem. The short answer is that higher numbers have to use some of their bits for large values and therefore lose "decimal places" (technically binary places) from the accuracy.
So when you move the camera around, the screen co-ordinates for any given vertex is returning slightly different values for each frame - producing inconsistencies in the Z-value and causing the shimmer you see.

 

Hello Probuilder API friends,

Does anyone know if the API has functions for any of these useful Editor actions?
1. Edge Loop
2. Edge Ring
3. Face Loop
4. Face Ring

I have tried feeding one face to the top-cap of a cylinder to GetCoincidentVertices() and I do get a list of vertex indices back. Then I traverse all the faces of the Probuilder mesh and look for faces whose indices are in the coincident return list.
But no face matches all three indices except the original one top-cap face.

Am I using GetCoincidentVertices() wrong?

Thank you!

 

Thank you!

 

Hello everyone does anyone know how to make a script to edit a bezier shape during runtime.I have been trying for days and have not found a solution.

 

Specifically in Probuilder or just generally in Unity? If the latter then just search Github for "unity spline"

 

Could someone explain to me why this is not working?? Do I have something wrong or I missed some step?? I'm unable to extrude the combined mesh..

Code (CSharp):

1. // some vector3 in the world
2.       List<Vector3>        points = waypoints.Select(point => point.transform.position).ToList();
3.       List<ProBuilderMesh> meshes = new List<ProBuilderMesh>();
4.  
5.       // generate plane using shapeGenerator and adjust position to given point
6.       points.Select(CreateMesh).ToList().ForEach(meshes.Add);
7.  
8.       // combine first plane with the rest planes into single mesh
9.       m_Mesh = CombineMeshes.Combine(meshes, meshes.First()).First();
10.  
11.       // THIS DOESNT WORK... THROWS KeyNotFoundException: The given key was not present in the dictionary.
12.       m_Mesh.Extrude(m_Mesh.faces, ExtrudeMethod.VertexNormal, 1);
13.       m_Mesh.ToMesh();
14.       m_Mesh.Refresh();

Code (CSharp):

1. KeyNotFoundException: The given key was not present in the dictionary.
2. System.Collections.Generic.Dictionary`2[TKey,TValue].get_Item (TKey key) (at <fb001e01371b4adca20013e0ac763896>:0)
3. UnityEngine.ProBuilder.WingedEdge.GetWingedEdges (UnityEngine.ProBuilder.ProBuilderMesh mesh, System.Collections.Generic.IEnumerable`1[T] faces, System.Boolean oneWingPerFace) (at Library/PackageCache/com.unity.probuilder@4.2.3/Runtime/Core/WingedEdge.cs:353)
4. UnityEngine.ProBuilder.MeshOperations.ExtrudeElements.ExtrudeAsGroups (UnityEngine.ProBuilder.ProBuilderMesh mesh, System.Collections.Generic.IEnumerable`1[T] faces, System.Boolean compensateAngleVertexDistance, System.Single distance) (at Library/PackageCache/com.unity.probuilder@4.2.3/Runtime/MeshOperations/ExtrudeElements.cs:385)
5. UnityEngine.ProBuilder.MeshOperations.ExtrudeElements.Extrude (UnityEngine.ProBuilder.ProBuilderMesh mesh, System.Collections.Generic.IEnumerable`1[T] faces, UnityEngine.ProBuilder.ExtrudeMethod method, System.Single distance) (at Library/PackageCache/com.unity.probuilder@4.2.3/Runtime/MeshOperations/ExtrudeElements.cs:30)

 

We have some issues, using this library, (also plugin from Asset Store) to cut the meshes. For example, there are some overflow issues with large meshes, or Unity just crashes. If we decreasing the epsilon value some time doesn't help.
Is there some possibility that ProBuilder boolean operations (cutting) will be more stable than csg library? How far Probuilder from not "experimental" boolean operations?
Thanks

 

hey karrrlll sorry for bothering you but is there any way to create probulider sphere at runtime and change the subdivision value or not ?

 

Hi kaarrrllll,
First of all, thanks for you posts and time, on this thread.

Second, here's my question:
I would like to be able to preview these in the Scene window (like pressing SHIFT and positioning with mouse when using 'New Shape'/'Create Shape' Probuilder Window).

I can get it to show using [ExecuteInEditMode] but my implementation feels a bit hacky, and I can't seem to get to it only update and show on a keypress. I was wondering if there was an existing Method or process that might just preview the Probuilder mesh that I'm dynamically making?

See images and code if it helps...

https://imgur.com/a/AtAgoB8

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. using UnityEngine.ProBuilder;
6. using UnityEngine.ProBuilder.MeshOperations;
7. using Cinemachine;
8.  
9.  
10.     /// <summary>
11.     /// Description: This script demonstrates how to dynamically create Probuilder Meshes using Cinemachine Paths in Unity
12.     /// Inspiration from: https://github.com/Unity-Technologies/ProBuilder-API-Examples/blob/master/Runtime/Misc/CreatePolyShape.cs
13.     /// </summary>
14.     [RequireComponent(typeof(CinemachineSmoothPath))]
15.     [ExecuteInEditMode]
16.     public class ProbuilderAndCinemachine : MonoBehaviour
17.     {
18.  
19.         [SerializeField] float heightOfMesh = 1f;
20.         [SerializeField] bool flipMeshNormals = false;
21.  
22.         [SerializeField] float width = 3f;
23.         [SerializeField] int sampleDistance = 10;
24.  
25.         private float lastHeightOfMesh;
26.         private bool lastFlipMeshNormals;
27.         private float lastWidth;
28.         private float lastPathLength;
29.         private int lastSampleDistance;
30.  
31.         private ProBuilderMesh dynamicProbuilderMesh;
32.         private CinemachineSmoothPath path;
33.  
34.         GameObject capsuleHolder;
35.         GameObject probuilderPathMesh;
36.         void Start()
37.         {
38.          
39.  
40.             path = this.GetComponent<CinemachineSmoothPath>();
41.  
42.             StoreLatestMeshSetting();
43.             Rebuild();
44.         }
45.  
46.         private void StoreLatestMeshSetting()
47.         {
48.             lastHeightOfMesh = heightOfMesh;
49.             lastFlipMeshNormals = flipMeshNormals;
50.             lastWidth = width;
51.             lastPathLength = path.PathLength;
52.             lastSampleDistance = sampleDistance;
53.         }
54.  
55.         private void Update()
56.         {
57.             if (heightOfMesh != lastHeightOfMesh
58.                 || flipMeshNormals != lastFlipMeshNormals
59.                 || width != lastWidth
60.                 || path.PathLength != lastPathLength
61.                 || sampleDistance != lastSampleDistance)
62.             {
63.  
64. //CANNOT GET WORKING
65. //#if UNITY_EDITOR
66. //
67. //               if (Input.GetKeyDown(KeyCode.RightShift))
68. //               {
69. //                    Rebuild();
70. //                }
71. //#else
72.                 Rebuild();
73. //#endif
74.                 StoreLatestMeshSetting();
75.             }
76.         }
77.         void Rebuild()
78.         {
79.             if (capsuleHolder != null)
80.             {
81.                 DestroyImmediate(capsuleHolder);
82.             }
83.  
84.             if (probuilderPathMesh !=null)
85.             {
86.                 DestroyImmediate(probuilderPathMesh);
87.             }
88.             // Create a new GameObject
89.             probuilderPathMesh = new GameObject("Dynamically Created Path");
90.  
91.             // Add a ProBuilderMesh component (ProBuilder mesh data is stored here)
92.             dynamicProbuilderMesh = probuilderPathMesh.gameObject.AddComponent<ProBuilderMesh>();
93.  
94.             capsuleHolder = new GameObject("Capsule Locators");
95.             // Create a circle of points with randomized distance from origin.
96.             CinemachineSmoothPath.Waypoint[] points = new CinemachineSmoothPath.Waypoint[path.m_Waypoints.Length];
97.  
98.             int vertexPoints = points.Length * 2;
99.             List<Vector3> pointsOnPath = new List<Vector3>();
100.             List<Vector3> reversePointsOnPath = new List<Vector3>();
101.  
102.             for (int i = 0; i < path.PathLength; i += sampleDistance)
103.             {
104.                 Vector3 locationAlongPath = path.EvaluatePositionAtUnit(i, CinemachinePathBase.PositionUnits.Distance);
105.                 Quaternion rotationAlongPath = path.EvaluateOrientationAtUnit(i, CinemachinePathBase.PositionUnits.Distance);
106.  
107.                 GameObject leftObject = GameObject.CreatePrimitive(PrimitiveType.Sphere);
108.                 leftObject.transform.SetParent(capsuleHolder.transform);
109.                 leftObject.transform.SetPositionAndRotation(locationAlongPath, rotationAlongPath);
110.                 leftObject.transform.Translate(-transform.right * (width*0.5f));
111.  
112.                 pointsOnPath.Add(leftObject.transform.position);
113.  
114.                 GameObject rightObject = GameObject.CreatePrimitive(PrimitiveType.Sphere);
115.                 rightObject.transform.SetParent(capsuleHolder.transform);
116.                 rightObject.transform.SetPositionAndRotation(locationAlongPath, rotationAlongPath);
117.                 rightObject.transform.Translate(transform.right * (width * 0.5f));
118.                 reversePointsOnPath.Add(rightObject.transform.position);
119.                 //pointsOnPath[i+ (pointsOnPath.Length/2)-1] = capsule2.transform.position;
120.  
121.                   ProBuilderMesh arch = ShapeGenerator.GenerateArch(
122.                  pivotType: PivotLocation.Center,
123.                  angle: 180,
124.                  radius: width+2,
125.                  width: 2,
126.                  depth: 3,
127.                  radialCuts: 9,
128.                 insideFaces: true,
129.                 outsideFaces: true,
130.                 frontFaces: true,
131.                 backFaces: true,
132.                 endCaps: false
133.                 );
134.  
135.                 arch.transform.SetParent(capsuleHolder.transform);
136.                 arch.transform.SetPositionAndRotation(locationAlongPath+(Vector3.up*width), rotationAlongPath);
137.                 arch.GetComponent<MeshRenderer>().sharedMaterial = BuiltinMaterials.defaultMaterial;
138.             }
139.  
140.             reversePointsOnPath.Reverse();
141.  
142.             pointsOnPath.AddRange(reversePointsOnPath);
143.  
144.             // CreateShapeFromPolygon is an extension method that sets the probuilder mesh data with vertices and faces
145.             // generated from a polygon path.
146.             dynamicProbuilderMesh.CreateShapeFromPolygon(pointsOnPath, heightOfMesh, flipMeshNormals);
147.  
148.  
149.             // Assign the default material
150.             dynamicProbuilderMesh.GetComponent<MeshRenderer>().sharedMaterial = BuiltinMaterials.defaultMaterial;
151.  
152.  
153.         }
154.  
155.     }
156.  

 

Hey @kaarrrllll, I would to check if there is a way to use ProBuilder on runtime so user can build his "own scene".