Unity Curved World Shader

Today, I want to share a shader I created(not originally) to have curved horizon or curved world effect in unity.

I was looking for curved world shader for my game when I just stumbled on this. It worked perfectly, only thing it was missing was some properties and better shadows and graphics so I decided to integrate or mix it with Unity's default shader and I was successful to add some more properties to it like normal mapping, tiling, smoothness and metallic. I tested it and it works perfectly. So if anyone is looking for any such shader for game, here it is -

Spoiler: Show Shader Code

Code (CSharp):

1. Shader "Custom/CurvedWorld" {
2.     Properties {
3.         _Color ("Color", Color) = (1,1,1,1)
4.         _MainTex ("Albedo (RGB)", 2D) = "white" {}
5.         _BumpMap ("Normalmap", 2D) = "bump" {}
6.         _Glossiness ("Smoothness", Range(0,1)) = 0.5
7.         _Metallic ("Metallic", Range(0,1)) = 0.0
8.         _Curvature ("Curvature", Float) = 0.001
9.     }
10.     SubShader {
11.         Tags { "RenderType"="Opaque" }
12.         LOD 200
13.      
14.         CGPROGRAM
15.         // Physically based Standard lighting model, and enable shadows on all light types
16.         #pragma surface surf Standard vertex:vert fullforwardshadows
17.  
18.         // Use shader model 3.0 target, to get nicer looking lighting
19.         #pragma target 3.0
20.  
21.         sampler2D _MainTex;
22.         sampler2D _BumpMap;
23.         float _Curvature;
24.  
25.         struct Input {
26.             float2 uv_MainTex;
27.             float2 uv_BumpMap;
28.         };
29.  
30.         half _Glossiness;
31.         half _Metallic;
32.         fixed4 _Color;
33.      
34.          void vert( inout appdata_full v)
35.         {        
36.             float4 vv = mul( _Object2World, v.vertex );
37.             vv.xyz -= _WorldSpaceCameraPos.xyz;
38.             vv = float4( 0.0f, ((vv.z * vv.z) + (vv.x * vv.x)) * - _Curvature, 0.0f, 0.0f );
39.             v.vertex += mul(_World2Object, vv);
40.         }
41.  
42.         void surf (Input IN, inout SurfaceOutputStandard o) {
43.             // Albedo comes from a texture tinted by color
44.             fixed4 c = tex2D (_MainTex, IN.uv_MainTex) * _Color;
45.             o.Albedo = c.rgb;
46.             o.Normal = UnpackNormal (tex2D (_BumpMap, IN.uv_BumpMap));
47.             // Metallic and smoothness come from slider variables
48.             o.Metallic = _Metallic;
49.             o.Smoothness = _Glossiness;
50.             o.Alpha = c.a;
51.         }
52.         ENDCG
53.     }
54.     FallBack "Diffuse"
55. }

or Download CurvedWorld.shader

Usage - You don't need to attach this to camera. You need to attach this to all your meshes and gameObject which will be rendered.
Some screenshots -

 

You may want to check this asset out Curved World.

 

I know about it, but since it's not free so I decided to create my own for anybody who needs to use this effect for free.

 

Those images aren't appearing on my end. You may want to check their permissions or throw them up on Imgur.

 

@Ryiah , Fixed it. I think it was Google+ permissions. Uploaded to imgur.

 

wow, this shader is so beautiful, thank you a lot for this. The shader realm is still very new to me

 

Thanks for sharing this. I don't currently have a need for it, but it seems hella fun to tinker with, and it's always nice to see people share interesting things for free.

BTW, the shader file download you posted also has permission issues, though one who isn't lazy can just copy from the script you posted.

 

Oh, thanks for pointing out, I just missed it. I will update the permissions.

 

Thanks for this man, it's awesome! May I apply that to a normal terrain?

 

Only shaders or materials specialised for terrain could be used with Terrain system in unity, hence this shader can not be used with the terrain system.

 

Hi, I'm developing an infinite racer and I've got bridges going over water, and I'm using the Curved World water shader for that. Because of the technique being used (car stays stationary, scenery moves) the actual water detail itself stays still while the water plane moves. How can I get the shader to operate in real world coordinates? Maybe the shader needs a new option for that! Surely it wouldn't be that difficult?

Thanks,

Richard