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Procedural generation library for Unity

Home Page: https://assetstore.unity.com/packages/tools/utilities/procedural-toolkit-16508

License: MIT License

C# 97.78% ShaderLab 0.64% HLSL 1.59%

unity unity3d procedural procedural-generation pcg c-sharp

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proceduraltoolkit's Issues

Implement Draw.WirePolygon

Create the following methods and appropriate overloads for DebugE, GizmosE and GLE:
WirePolygon(List<Vector3>)
WirePolygonXY(List<Vector2>)
WirePolygonXZ(List<Vector2>)
WirePolygonYZ(List<Vector2>)

Geometry: 2D Point-Line

Geometry: 2D Point-Segment

Geometry: 2D Line-Line

Draw.RasterFilledCircle doesn't work with radius 1

Left - Draw.RasterCircle, right - Draw.RasterFilledCircle.

Also, both methods draw nothing on radius 0, they should probably draw a dot.

Geometry: 2D Segment-Segment

Add missing Geometry algorithms

Geometry: 2D Line-Ray

Geometry: 3D Point-Segment

Add missing Geometry algorithms

Geometry: 2D Point-Circle

Implement Draw.WirePolyline

Create the following methods and appropriate overloads for DebugE, GizmosE and GLE:
WirePolyline(List<Vector3>)
WirePolylineXY(List<Vector2>)
WirePolylineXZ(List<Vector2>)
WirePolylineYZ(List<Vector2>)

Geometry: 3D Point-Ray

Add missing Geometry algorithms

Geometry: 2D Ray-Circle

Add missing Geometry algorithms

Xcode stuck / hangs when compiling source files for Unity project

http://answers.unity3d.com/questions/1274200/xcode-stuck-hangs-when-compiling-source-files-for.html

MeshDraft.FlatRevolutionSurface throws ArgumentOutOfRangeException with generateUV = false

Both lowerRingUV and upperRingUV are empty:

ProceduralToolkit/Scripts/MeshDraftPrimitives.cs

Lines 510 to 530 in 70e7503

 var draft = new MeshDraft {name = "Flat revolution surface"}; 

 for (int y = 0; y < ringsVertices.Count - 1; y++) 

 { 

 var lowerRingVertices = ringsVertices[y]; 

 var upperRingVertices = ringsVertices[y + 1]; 

 var lowerRingUV = ringsUV[y]; 

 var upperRingUV = ringsUV[y + 1]; 

 for (int x = 0; x < horizontalSegments; x++) 

 { 

 Vector3 v00 = lowerRingVertices[x + 1]; 

 Vector3 v01 = upperRingVertices[x + 1]; 

 Vector3 v11 = upperRingVertices[x]; 

 Vector3 v10 = lowerRingVertices[x]; 

 Vector2 uv00 = lowerRingUV[x + 1]; 

 Vector2 uv01 = upperRingUV[x + 1]; 

 Vector2 uv11 = upperRingUV[x]; 

 Vector2 uv10 = lowerRingUV[x]; 

 draft.AddQuad(v00, v01, v11, v10, true, uv00, uv01, uv11, uv10); 

 } 

 } 

 return draft;

In the terrain example.. Terrain Mesh?

where is located the terrain Mesh in the terrain example

MeshPrimitives methods Sphere and FlatSphere use the wrong parameters

I noticed MeshPrimitives.Sphere and MeshPrimitives.FlatSphere use the longitudeSegments parameter twice and ignore the latitudeSegments parameter. I assume this isn't the intended usage.

Saving Generated Objects as Assets

Hi Syomus,

Thank you for such a great Unity tool. I was hoping that you could explain how to save the objects that I have generated in ProceduralToolkit so I can use them in any scene.

Thanks in advance for your response.

Cheers - Chapmania

Mesh collider for low poly terrain?

Experimenting with the low poly terrain example, I've added a mesh collider to the "TerrainGenerator" object, as well as a test player to the scene. It appears that the mesh collider is doing something, in that my player isn't falling infinitely, but it's clear that the mesh collider doesn't match the actual rendered "terrain" - my player is essentially up its head, as I walk around the terrain does vary in height, but I soon fall through.

I hoped you might have an idea what could be causing this before I go digging in and debugging.

Building Geometry a mess in Unity 2018.1.0b13

Vertices are all over the place, building is destroyed.

Bug report

Faces are flipped, polys drawn to wrong points?

Steps to reproduce

Run the Buildings scene, witness the destruction.

Building generator not working in 2017.4.0f1 Personal

The building generator is producing lots of noise as can be seen in the image below.

Bug report

Building generator is creating correct size buildings but they are not neatly rendered.

Version

Unity: 2017.4.0f1 Personal
ProceduralToolkit: 0.2.0 (installed from asset store)

Steps to reproduce

Open Buildings scene
Scene looks OK in the editor
Hit play
Generated building looks like the image above (in both Game window and Editor window)
Adjusting parameters changes building correctly by length, width, floors etc. but similar issues are seen in all cases

Feature request

Behaviour as seen at http://syomus.com/ProceduralToolkit/Buildings is the goal

Question

Depending on whether I find something else suitable I may be willing to try to debug this. However, I'm no Unity expert and have not looked at the code here yet. Any pointers as to what might be wrong will help me (or someone else) should I decide to take a look.

Geometry: 3D Line-Segment

Add missing Geometry algorithms

Licensing

One thing that might help people who want to use the toolkit is if you explicitly include an open-source license, such as the MIT license. That way, most of the legal questions people might have are already covered, and people will hopefully feel more confident about submitting code to be included.
(If you haven't checked it out before http://choosealicense.com/ is useful.)

Add Boids Predators ?

Hello,
i just download procedural tool kit, i have to make a group of fishs, they must avoid predators.
I wan't to use boids for that i started to check your boids exemples, how can i introduce predators for the group of objects. I really don't know where to start.

Thanks you

Geometry: 3D Sphere-Sphere

Add missing Geometry algorithms

Geometry: 2D Point-Ray

Add missing Geometry algorithms

https://github.com/Syomus/ProceduralToolkit/wiki/Geometry-algorithms
http://www.realtimerendering.com/intersections.html

D - Distance
C - Closest point(s)
I - Intersection

2D	Line	Ray	Segment	Circle2
Point	D, C, I	D, C, I	D, C, I	D, C, I
Line	D, C, I	D, C, I	D, C, I	D, C, I
Ray		D, C, I	D, C, I	D, C, I
Segment			D, C, I	D, C, I
Circle2				D, C, I

3D	Line	Ray	Segment	Sphere	Circle3
Point	D, C, I	D, C, I	D, C, I	D, C, I	-
Line	I	-	-	D, C, I	-
Ray		-	-	D, C, I	-
Segment			-	D, C, I	-
Sphere				D, C, I	-
Circle3					-

Geometry: 3D Line-Ray

Add missing Geometry algorithms

Add a uvmap for MeshDraft.Dodecahedron

All other primitives have a more or less sensible uvmap, Dodecahedron should have one too. Also, it will have to be constructed in some other way, AddFlatTriangleBand is not very convenient in this case.

ProceduralToolkit/Scripts/MeshDraftPrimitives.cs

Lines 118 to 148 in ff54823

 public static MeshDraft Dodecahedron(float radius) 

 { 

 const float magicAngle1 = 52.62263590f; 

 const float magicAngle2 = 10.81231754f; 

 const float segmentAngle = 72; 

 float lowerAngle = 0; 

 float upperAngle = segmentAngle/2; 

 var lowerCap = new Vector3[5]; 

 var lowerRing = new Vector3[5]; 

 var upperCap = new Vector3[5]; 

 var upperRing = new Vector3[5]; 

 for (var i = 0; i < 5; i++) 

 { 

 lowerCap[i] = Geometry.PointOnSphere(radius, lowerAngle, -magicAngle1); 

 lowerRing[i] = Geometry.PointOnSphere(radius, lowerAngle, -magicAngle2); 

 upperCap[i] = Geometry.PointOnSphere(radius, upperAngle, magicAngle1); 

 upperRing[i] = Geometry.PointOnSphere(radius, upperAngle, magicAngle2); 

 lowerAngle += segmentAngle; 

 upperAngle += segmentAngle; 

 } 

 var draft = new MeshDraft {name = "Dodecahedron"} 

 .AddTriangleFan(upperCap, Vector3.up) 

 .AddFlatTriangleBand(upperRing, upperCap, false) 

 .AddFlatTriangleBand(lowerRing, upperRing, false) 

 .AddFlatTriangleBand(lowerCap, lowerRing, false) 

 .AddTriangleFan(lowerCap, Vector3.down, true); 

 return draft; 

 }

Geometry: 3D Ray-Ray

Add missing Geometry algorithms

Implement Draw.WireCircleSector

Create the following methods and appropriate overloads for DebugE, GizmosE and GLE:
WireCircleSectorXY(Vector3 position, float radius)
WireCircleSectorXY(Vector3 position, Quaternion rotation, float radius)
WireCircleSectorXZ(Vector3 position, float radius)
WireCircleSectorXZ(Vector3 position, Quaternion rotation, float radius)
WireCircleSectorYZ(Vector3 position, float radius)
WireCircleSectorYZ(Vector3 position, Quaternion rotation, float radius)

Geometry: 2D Segment-Circle

Add missing Geometry algorithms

Geometry: 2D Ray-Ray

Geometry: 2D Ray-Segment

SDF: Easing example is broken in the WebGL build

Easing example doesn't work in the current WebGL build.

Steps to reproduce

Open the WebGL build page
Select "Easing"

Note: Creation of internal variant of shader 'Procedural Toolkit/Examples/Easing' failed.
WARNING: Shader
Unsupported: 'Procedural Toolkit/Examples/Easing' - Pass '' has no vertex shader

How to use the toolkit to create procedural terrain generation?

Hi there,
your toolkit looks really good. I'm actually struggling trying to find a way to procedural generate a 3d low poly terrain for a game I'm developing. I'm new to all these concepts and I would appreciate a guide/direction/tutorial from you on how to integrate the script with Unity3D. Do i need to attach the script to a 'terrain' object in Unity? I need to generate a new terrain every time the game starts a place prefabs on it. Unfortunately there is no too much documentation.

I would appreciate any help. Thanks!

Add support for 32 bit Mesh index buffers

Also need to test real max values.
Relevant links:
https://docs.unity3d.com/ScriptReference/Rendering.IndexFormat.html
https://docs.unity3d.com/ScriptReference/Mesh-indexFormat.html

Implement Circle3.GetPoint

Similar to Circle2.GetPoint:

ProceduralToolkit/Scripts/Geometry/Circle2.cs

Lines 27 to 33 in 806331d

 /// <summary> 

 /// Returns a point on the circle at the given <paramref name="angle"/> 

 /// </summary> 

 public Vector2 GetPoint(float angle) 

 { 

 return center + Geometry.PointOnCircle2(radius, angle); 

 }

Lines 35 to 38 in 806331d

 public bool Contains(Vector2 point) 

 { 

 return Intersect.PointCircle(point, center, radius); 

 }

	var draft = new MeshDraft {name = "Flat revolution surface"};
	for (int y = 0; y < ringsVertices.Count - 1; y++)
	{
	var lowerRingVertices = ringsVertices[y];
	var upperRingVertices = ringsVertices[y + 1];
	var lowerRingUV = ringsUV[y];
	var upperRingUV = ringsUV[y + 1];
	for (int x = 0; x < horizontalSegments; x++)
	{
	Vector3 v00 = lowerRingVertices[x + 1];
	Vector3 v01 = upperRingVertices[x + 1];
	Vector3 v11 = upperRingVertices[x];
	Vector3 v10 = lowerRingVertices[x];
	Vector2 uv00 = lowerRingUV[x + 1];
	Vector2 uv01 = upperRingUV[x + 1];
	Vector2 uv11 = upperRingUV[x];
	Vector2 uv10 = lowerRingUV[x];
	draft.AddQuad(v00, v01, v11, v10, true, uv00, uv01, uv11, uv10);
	}
	}
	return draft;

	public static MeshDraft Dodecahedron(float radius)
	{
	const float magicAngle1 = 52.62263590f;
	const float magicAngle2 = 10.81231754f;
	const float segmentAngle = 72;

	float lowerAngle = 0;
	float upperAngle = segmentAngle/2;

	var lowerCap = new Vector3[5];
	var lowerRing = new Vector3[5];
	var upperCap = new Vector3[5];
	var upperRing = new Vector3[5];
	for (var i = 0; i < 5; i++)
	{
	lowerCap[i] = Geometry.PointOnSphere(radius, lowerAngle, -magicAngle1);
	lowerRing[i] = Geometry.PointOnSphere(radius, lowerAngle, -magicAngle2);
	upperCap[i] = Geometry.PointOnSphere(radius, upperAngle, magicAngle1);
	upperRing[i] = Geometry.PointOnSphere(radius, upperAngle, magicAngle2);
	lowerAngle += segmentAngle;
	upperAngle += segmentAngle;
	}

	var draft = new MeshDraft {name = "Dodecahedron"}
	.AddTriangleFan(upperCap, Vector3.up)
	.AddFlatTriangleBand(upperRing, upperCap, false)
	.AddFlatTriangleBand(lowerRing, upperRing, false)
	.AddFlatTriangleBand(lowerCap, lowerRing, false)
	.AddTriangleFan(lowerCap, Vector3.down, true);
	return draft;
	}

	/// <summary>
	/// Returns a point on the circle at the given <paramref name="angle"/>
	/// </summary>
	public Vector2 GetPoint(float angle)
	{
	return center + Geometry.PointOnCircle2(radius, angle);
	}

	public bool Contains(Vector2 point)
	{
	return Intersect.PointCircle(point, center, radius);
	}

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