Curved World (OLD) - Screen Space Curvature Shader

Ok ,Thanks !

 

Thanks again for the shader, I bought this the other day and am enjoying looking at the thought and work put into this project.

Is it trivial to make the shader matrix the calculation is based off of from the camera transform and looking straight out along the z axis? For my current project, this would be the ideal effect. If not, I look forward to using this sometime in the future.

cheers.

 

Hi,
Can you show some images or may be video of the effect you'd like to achieve. Or I am afraid I can not clearly understand your question.



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Hey i want to buy your assets.

But beforehand i want to clarify few things.

1. Our is a game like subway surfer, will it apply curve to dynamic incoming vehicles and coins ( randomly generated ) ?

 

Yes, without problem.



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Do you have a solution for the raycasting from camera? It needs to be made incrementally raycasting inverse curved rays, I'm working on my own solution but was asking if your packade does have a working solution? I would consider purchasing if it does.

 

No, such solution is not included.



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Ok, good to know.

I just solved the problem myself, it was quite simple If you are interested in knowing the solution I can post it for you so you can include the ability to raycast through the curved world.

 

@MasterKelli
Sure, post it.


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Ok, here it is.

Code (CSharp):

1.  
2. public bool BentRayCast(Ray r, out RaycastHit hitInfo)
3.     {
4.         // Define iteration count and single ray distance (less iterations = more performance but less accuracy)
5.         int iterationCount = 10;
6.         float rayDist = 50.0f;
7.  
8.         // Variables for optimization
9.         float rayLength;
10.         Vector3 rayStart;
11.         Vector3 rayEnd;
12.         Vector3 rayDir;
13.         Ray bentRay = new Ray();
14.  
15.         // Raycast multiple times to "curve" the raycast
16.         for (int i = 0; i < iterationCount; ++i)
17.         {
18.             rayStart = GetInverseCurvedPosition(r.origin + i * (r.direction * rayDist));
19.             rayEnd = GetInverseCurvedPosition(r.origin + (i + 1) * (r.direction * rayDist));
20.  
21.             rayDir = rayEnd - rayStart;
22.             rayLength = rayDir.magnitude;
23.  
24.             bentRay.origin = rayStart;
25.             bentRay.direction = rayDir / rayLength;
26.  
27.             if (Physics.Raycast(bentRay, out hitInfo, rayLength))
28.                 return true;
29.         }
30.  
31.         hitInfo = new RaycastHit();
32.  
33.         return false;
34.     }
35.  
36.     public Vector3 GetInverseCurvedPosition(Vector3 position)
37.     {
38.         // convert position to camera space
39.         position = camera.worldToCameraMatrix.MultiplyPoint(position);
40.  
41.         float zOff = position.z / distance;
42.  
43.         // inverse bend position and return world space position
44.         return camera.cameraToWorldMatrix.MultiplyPoint(position - offset * zOff * zOff);
45.     }
46.  
47.     // Simple example of use:
48.     void Update()
49.     {
50.         RaycastHit hitInfo;
51.  
52.         if (Input.GetMouseButtonDown(0))
53.         {
54.             // Get the normal ray that you would use without bending
55.             Ray originalRay = camera.ScreenPointToRay(Input.mousePosition);
56.  
57.             if (BentRayCast(originalRay, out hitInfo))
58.             {
59.                 // Do whatever you would do with the raycast
60.             }
61.         }
62.     }

Your curvature calculation might be different than mine so what you need to change is the code inside GetInverseCurvedPosition. It needs to be inverse of your vertex offset calculation from your vertex shader.

 

wow, thanks for sharing.



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Can i make infinite road with this asset like your videos or i need to find another solution + your asset ?

 

Yes you can make infinite bend road effect.
Curved World is a collection of shaders (not 3d assets) that can make bending effects like in promo video and demo(Web demo available).
All scenes from web demo are inside package as example scenes, you can inspect them.



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I checked your videos and webdemo. I want to make a scene like your runner but with a car. I was searching all-in-one solution for endless track.
Thanks for the info.

 

How do I make a "Use Mesh Vertex Color" checkbox appear in the inspector for a custom shader? I have defined

Code (csharp):

1. #pragma multi_compile V_CW_VERTEX_COLOR_OFF V_CW_VERTEX_COLOR_ON

in the shader.

 

All optional parameters being displayed inside Curved World material editor are handled by custom editor scripts.
You can not use that scripts inside your custom shaders.
But you can make you own property drawers: check-boxes, drop-down lists, etc.
Here is doc: http://docs.unity3d.com/ScriptReference/MaterialPropertyDrawer.html



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Thats great. Thanks very much.

 

Will this work with Unity 4.6?

 

Yes.



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Thanks I purchased it an after a quick review of the package I'm quite happy. It seems quite suitable for endless runner variant game.

I'm just wonder if you know what endless runner games have used this asset. I'm curious about any interesting implementations.

 

Thanks,
I do not know games where my shaders are used. But effect that offers Curved World are used in most runners (and not only runners).



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Has anyone found a way to make this AWESOME asset work with the new Unity 5 standard sharder? If so, please do share

 

Unity 5 beta is currently not supported, waiting for final release.



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that said... some minor help in setting up the Curved World shader for the RELEASE CANDIDATE 2 for Unity 5, which all other asset store assets i use have done so, would be much appreciated!

 

Do not know what other assets did, but related to shaders and rendering passes Unity 5 beta still has bugs and has not been tested enough.



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Bugs or not, it is now in release candidate state... The standard shader is in a near final state, and it would be most helpful to have some advice on where to inject the curved world shader code into it.

 

Yesterday I had time to work with Unity 5 for the first time and here is my reaction about recreating (yes recreating, not importing) Curved World to Unity 5.

This is about deferred rendering and shadows. In Unity 4 I modified shadow collector pass to make them curvy, but in Unity 5 shadow collector pass is completely removed and I can not figure out how to render it know.



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Little update v1.21
Scene Material Baker replaced with improved Scene Material Manager.
Now it is possible to review all scene materials(not only Curved Worlds) and easy control of global switch of the materials.



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Update v1.22
• Fixed - Particle shaders did not display global switch button inside material editor.



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Youch... looks like I'll have to strip curved world out of any projects destined to be moved to Unity 5, until you give word of a solution. Thank you for taking the time to check out the potential of moving to Unity5 with Curved World. I'll await you potentially being able to port to Unity5

 

Could this asset be used to apply a slight curvature to a terrain to make it more planet like? Is it possible for it to NOT affect anything but the terrain? For instance, I do not want it to affect the game objects sitting on the terrain, only the terrain itself.

 

Unity Terrain is not supported, because Unity engine bug. If it will be fixed in Unity 5 I'll add it.



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Ok, I'll watch for that fix, thanks.

 

If your luck you might be able to export a Unity terrain as obj and re-import it. Not perfect but might come close

 

hi!, Curved World works like an image post procesor or work culling objects? Thanks

 

Any word on Unity 5 support for fog/shadows?

 

Curved World is not image effect, it is per mesh material effect. Just apply material with Curved World shader to the mesh and it will be bended.

Unity 5 is currently not supported. I have 7 assets on the Asset Store and I need time to convert them all.




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any chance some one know how to use this? newbie coder need help.

 

Update v1.24 released.



Added function inside Global Controller for calculating bend point.
GetBendPoint() - function takes point world space position and returns its bend variant (also in world space).

for example, if you apply this scrip to any object (do not use Curved World shader), Global Controller will modify scene position according to its parameters.

Code (CSharp):

1. public class PointBend : MonoBehaviour
2. {
3.   Vector3 origPosition;
4.   // Use this for initialization
5.   void Start()
6.   {
7.   origPosition = transform.position;
8.   }
9.   // Update is called once per frame
10.   void Update ()
11.   {
12.   transform.position = CurvedWorld_GlobalController.get.GetBendPoint(origPosition);
13.   }  
14. }

If you attach script to the collider its position will be updated and you can hit it using Physics.Raycast().



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So from what I gather, you have NO PLANS to implement Unity 5 with this?

 

Why "NO PLANS" ?!
Curved World for Unity 5 is in development. It is not ready yet.



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Because of your post that said:
Yesterday I had time to work with Unity 5 for the first time and here is my reaction about recreating (yes recreating, not importing) Curved World to Unity 5.

This is about deferred rendering and shadows. In Unity 4 I modified shadow collector pass to make them curvy, but in Unity 5 shadow collector pass is completely removed and I can not figure out how to render it know.

 

Yes, it was my first reaction. Just a joke .
Curved World for Unity 5 is in development.



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Well, some of those of us who paid for it, didn't see the humor.
I'm glad it's in development now.

 

Some of those who buy anything on Asset Store have wrong thoughts that they are buying lifetime support and upgrade, you know. It's just my good will to give support and upgrade and do not care about humor sense level.



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If only your attitude towards the people who are buying the things you sell was as good as the screenshots of your products. You may not know this, but you have a reputation for being a total D**k around here. I have read in many places how you will not own up to your own assets and constantly lay blame at the feet of people who buy the things you sell. If you don't want to deal with other people, then find someone else to do product support for you.

 

Calm down, John. If you are such disappointed with the product and support, there's always the option of returning it!
Just send Unity a mail!



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If I fired a bullet, or a projectile rocket, would it work? or would I get problems? would the effect break, is this not suitable for fps, would certain weapons work, others not? I can see it would work perfectly for sword games, platform or driving, but how would shooting games effect things, I want to know how i could get something working to use for any sort of shooting games weapon types?

 

I have not tested shader on fps games and can not give correct/full answer now. But if you shoot at a bend object, Curved World has function for detecting bend object position, and it gets hit. Also projectile rocket will be bend and its movement will be curvy.
You can try web demo, in second scene press space to go into fps mode, there is no shooting option, but you will have some feelings about fps.



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On building and deploying on the windows phone . All the objects with this shaders are like blue in color . Whats the reason. can anyone help me