► Curved World ◄

I'm presently using the default unity "Skybox/6 sided" shader in my game for my skybox.
I would like to add Curved World functionality to it, but I just don't know where to make the changes in that shader.

 

@Arkhivrag discusses the skybox issue here.

 

I see, yeah that makes sense.
I saw that there was a skybox shader variant shipped with Curved World 2 and it got me wondering.

 

man I can't get it running Is there no video tutorial showing simple unity terrain and a cube and apply the shader to it to get the curved effect?

 

There are no video tutorials. What exactly you can not setup? Did you check example scenes and ReadMe file?



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How to apply the shader to a Terrain and a cube?

 

I just wanted to say again how super pleased I am with Curved World 2.
It's everything I have wanted in this product and so much more.
Great Job on it, I'm glad you got it finished!

 

For terrain - use Custom material option in Terrain settings and that custom material must have Curved Word terrain shader (Diffuse or Standard, not Mobile(T4M))


For cube - create material and assign Curved World shader to it. More info about materials and shaders here: http://docs.unity3d.com/Manual/Shaders.html and here: http://docs.unity3d.com/Manual/Materials.html



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Hey Arkhivrag,
So far things are moving well! Although this error has been arising when assemblies are reloaded.
http://s.odowd.co/tqj.png

Any known fixes?

 

What Unity version do you use? And what is OS?



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So I have a little problem with CW2. I have a directional light and im using CW2 in little planet mode. Whenever the light is pointing directly down at the surface of my world the light acts strange.

With light pointing down:
https://www.dropbox.com/s/bi59mqx9ve14nc6/Skärmklipp 2015-08-01 19.39.42.png?dl=0
With light in a angle:
https://www.dropbox.com/s/zp196t5lg3ic4yj/Skärmklipp 2015-08-01 19.46.23.png?dl=0

Is it something that I have done wrong or is this a bug? Is there anyway it can be fixed or do I have to find a workaround?
please help I really want this to work

 

Very strange bug. But it is Unity's bug, not Curved World's.
Just put one simple mesh (box or sphere) below 'Little Planet' and it will be fixed.



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Thanks. Strange fix but it solved it

 

So I want to ask about custom shaders.
I have some shaders I have purchased which I would like to convert to Curved World.
However they do not have the methods in them which are described in the documentation.
Should I just add the whole method in those cases?
Would adding that method break the shader ?

For example, where would I add it on this shader?

Shader"SHADER_NAME"
{
Properties
{
_FieldTex ("FieldTexture" ,2D) = "" {}
_InnerTint ("InnerMaskTint", Color) = (1.0, 1.0, 1.0, 1.0)
_OuterTint ("OuterMaskTint", Color) = (1.0, 1.0, 1.0, 1.0)
_Offset("MeshOffset", Float) = 0.02
_FieldPanSpeed ("FieldTexturePanSpeed", Float) = 1.0
_FieldBG ("FieldBackgroundVisibility", Float) = 1.0
_FieldSparks ("FieldSparksVisibility", Float) = 1.0
_InnterOffset("InnerMaskOffset", Float) = 1.0
_InnerPow("InnerMaskFeather", Float) = 1.0
_OutterOffset("OutterMaskOffset", Float) = 1.0
_OutterPow("OutterMaskFeather", Float) = 1.0
}

Category
{
Tags { "Queue"="Transparent""IgnoreProjector"="True""RenderType"="Transparent" }
BlendOneOne
AlphaTestGreater .01
ColorMaskRGB
CullOffLightingOffZWriteOffFog {ModeOff}

SubShader
{
Pass
{

CGPROGRAM
#pragmavertexvert
#pragmafragmentfrag

#ifdefined(SHADER_API_D3D9) || defined(SHADER_API_D3D11)
#pragmatarget3.0
#else
#pragmaglsl
#endif

#include "UnityCG.cginc"

fixed4_Pos_0;
fixed4_Pos_1;
fixed4_Pos_2;
fixed4_Pos_3;
fixed4_Pos_4;
fixed4_Pos_5;
fixed4_Pos_6;
fixed4_Pos_7;
fixed4_Pos_8;
fixed4_Pos_9;
fixed4_Pos_10;
fixed4_Pos_11;
fixed4_Pos_12;
fixed4_Pos_13;
fixed4_Pos_14;
fixed4_Pos_15;
fixed4_Pos_16;
fixed4_Pos_17;
fixed4_Pos_18;
fixed4_Pos_19;
fixed4_Pos_20;
fixed4_Pos_21;
fixed4_Pos_22;
fixed4_Pos_23;

fixed_Pow_0;
fixed_Pow_1;
fixed_Pow_2;
fixed_Pow_3;
fixed_Pow_4;
fixed_Pow_5;
fixed_Pow_6;
fixed_Pow_7;
fixed_Pow_8;
fixed_Pow_9;
fixed_Pow_10;
fixed_Pow_11;
fixed_Pow_12;
fixed_Pow_13;
fixed_Pow_14;
fixed_Pow_15;
fixed_Pow_16;
fixed_Pow_17;
fixed_Pow_18;
fixed_Pow_19;
fixed_Pow_20;
fixed_Pow_21;
fixed_Pow_22;
fixed_Pow_23;


sampler2D_FieldTex;
fixed4_FieldTex_ST;

fixed4_InnerTint;
fixed4_OuterTint;

fixed_FieldBG;
fixed_FieldSparks;
fixed_FieldPanSpeed;
fixed_Offset;
fixed_InnterOffset;
fixed_OutterOffset;
fixed_InnerPow;
fixed_OutterPow;

structa2v {
fixed4vertex : POSITION;
fixed4texcoord : TEXCOORD0;
fixed4normal : NORMAL;
};

structv2f {
fixed4vertex : SV_POSITION;
fixed2uv : TEXCOORD0;
fixed4oPos : TEXCOORD2;
fixed4normal: TEXCOORD3;
};

fixed2uvPanner(fixed2uv, fixedx, fixedy)
{
fixedt = _Time;
returnfixed2(uv.x + x * t, uv.y + y * t);
}

/// VERTEX
v2fvert (a2vv)
{
v2fo;

v.vertex.xyz += v.normal * _Offset;
o.vertex = mul(UNITY_MATRIX_MVP, v.vertex);
o.oPos = v.vertex;
o.normal = v.normal;
o.uv = TRANSFORM_TEX ( v.texcoord, _FieldTex );

returno;
}

/// FRAGMENT
fixed4frag (v2fi) : COLOR
{
intinterpolators = 24;
fixed4pos[24];
fixedpower[24];

fixed3innerMask = 0.0;
fixed3outterMask = 0.0;

pos[0] = _Pos_0;
pos[1] = _Pos_1;
pos[2] = _Pos_2;
pos[3] = _Pos_3;
pos[4] = _Pos_4;
pos[5] = _Pos_5;
pos[6] = _Pos_6;
pos[7] = _Pos_7;
pos[8] = _Pos_8;
pos[9] = _Pos_9;
pos[10] = _Pos_10;
pos[11] = _Pos_11;
pos[12] = _Pos_12;
pos[13] = _Pos_13;
pos[14] = _Pos_14;
pos[15] = _Pos_15;
pos[16] = _Pos_16;
pos[17] = _Pos_17;
pos[18] = _Pos_18;
pos[19] = _Pos_19;
pos[20] = _Pos_20;
pos[21] = _Pos_21;
pos[22] = _Pos_22;
pos[23] = _Pos_23;

power[0] = _Pow_0;
power[1] = _Pow_1;
power[2] = _Pow_2;
power[3] = _Pow_3;
power[4] = _Pow_4;
power[5] = _Pow_5;
power[6] = _Pow_6;
power[7] = _Pow_7;
power[8] = _Pow_8;
power[9] = _Pow_9;
power[10] = _Pow_10;
power[11] = _Pow_11;
power[12] = _Pow_12;
power[13] = _Pow_13;
power[14] = _Pow_14;
power[15] = _Pow_15;
power[16] = _Pow_16;
power[17] = _Pow_17;
power[18] = _Pow_18;
power[19] = _Pow_19;
power[20] = _Pow_20;
power[21] = _Pow_21;
power[22] = _Pow_22;
power[23] = _Pow_23;


for(intx = 0; x < interpolators; x++)
{
fixeddist = distance(pos[x].xyz + i.normal * _Offset, i.oPos.xyz);

innerMask += pow(saturate(1 - dist * ((power[x] + _InnterOffset) + (1 - pos[x].w) * 2)), _InnerPow) * pos[x].w;
outterMask += pow(saturate(1 - dist * (_OutterOffset - (1 - pos[x].w) * 2)), _OutterPow) * pos[x].w;
}

fixedfield_Tex = pow(tex2D(_FieldTex, uvPanner(i.uv, _FieldPanSpeed, _FieldPanSpeed)), 2.2).r;
fixedfield_Tex_inv = pow(tex2D(_FieldTex, uvPanner(i.uv, -_FieldPanSpeed, -_FieldPanSpeed)), 2.2).r;


fixed3fieldColor = lerp(_OuterTint, _InnerTint, field_Tex.r).rgb;
fixedsparksMask = saturate(field_Tex * field_Tex_inv).x;
fixed3sparks = saturate(sparksMask * fieldColor) * _FieldSparks;

outterMask = saturate(outterMask * _OuterTint.rgb);
innerMask = saturate(innerMask * _InnerTint.rgb);

fixed3final = outterMask * _OuterTint.a * 10 + innerMask * _InnerTint.a * 10;
final += field_Tex * fieldColor * outterMask * _FieldBG;
final += sparks * outterMask * 10;

returnfixed4(final, 1.0);
}

ENDCG

} //PASS
} //SUBSHADER
} //CATEGORY
} //SHADER

 

Hi Arkhivrag,

I'm trying to use Simple Waypoint System with curved world but could not succeeded yet

I need, in a little planet like world, some objects must patrol obeying a pre-defined path.

Way Path is jumping somewhere in the scene after running.

Any suggestions for that ?

Thanks.

 

As written in CustomShaders.pdf file for vertex bending is available only two functions:
1. inline void V_CW_TransformPoint(inout float4 vertex)
2. inline void V_CW_TransformPointAndNormal(inout float4 vertex, inout float3 normal, float4 tangent)
Both of them are inside CurvedWorld_Base.cginc file.



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Curved World is a collection of shaders. They can not effect any script elements inside game.
I can not give any suggestions, because I do not know what are you doing with/inside your scripts.



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Right, I understand that, but I guess my question is that:
In your examples you are passing in these structs that you define like "vertexInput" and "fragmentInput", which are not present in the shaders I'm attempting to modify.
So for example in the shader I pasted above, it has its own return type of "v2f" for the "vert" function/method and "fixed4" for the "frag" function/method.


I understand that I need to include your gcinc, and that I need to wire up your method calls, but I'm just not sure where in the other shaders.

Please understand I am no shader programming expert, but a bit more clear information on how to modify existing shaders would go a long way in helping us novice users out.

Thanks!

 

All info is inside CustomShaders.pdf file (25 lines only). There is no info/secret/tricks more then that.

I included two example shaders (inside Shaders/Example folder)
1. "Custom/Example_Unlit"
2. "Custom/Example_Surface"
Did you check them?

Transform functions does not take structures for arguments!
1. inline void V_CW_TransformPoint(inout float4 vertex)
Clearly shows that it takes float4 vertex.
2. inline void V_CW_TransformPointAndNormal(inout float4 vertex, inout float3 normal, float4 tangent)
Function takes vertex, normal and tangent

All these variables (vertex, normal, tangent) can be part of any structure (with any name) that is passed as argument to vertex shader.
Return type of vertex and fragment shaders also has no sense.

Do not know what level, but some knowledge about shader programing is definitely necessary.




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I know you provided the documentation, I read it, I also looked at the example shaders.
I was able to finally make sense of it and get it working.

My point is, it would be nice is you could not make the assumption that all of the people who buy your package are shader programmers, and provide a bit more than 25 lines of (frankly vague) information. It would be great if you could make a 3 minute YouTube video that explains what and why, of making these changes.

I spent a lot of time on this trying to make it work, and experimenting, moving the code around and finally got it working.
I didn't understand where the code should go inside of the method and I had to keep moving it around.
Good for me, but It could have saved a lot of time if the instructions on custom shaders were written for novice shader programmer, which are going to be the large majority of your customers.

I think the product is fantastic, I really do. I'm totally thrilled that I'm finally able to use it.

I'm just asking for you to lower your expectation of your customer's experience with shader programming and provide some more information.

All the Best Mate,

 

What's the difference in performance compared to previous version?

 

Previous version contained only Mobile shaders, and their performance is about the same in new version.
Note, Curved World is per-vertex shader and has 0 (zero) impact per pixel, also you control how 'heavy' is the shader.



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Update v2.02

• Shaders now are packed inside packages and can be imported or excluded from project at any time from Edit/Prefecrences/Curved World. Speeds up shader recompilation.
• Legacy shaders (the heaviest shaders in recompilation) now are not included by default. They can be imported manually from Edit/Preferences/Curved World.
• Glass, Water and Flare shaders removed from Shader/FX folder. Now all of them has its own separate folder and package.
• Shader/FX folder must be removed manually.
• SpeedTree shaders removed from Shader/Nature folder. Now it has its own folder and package.



I've received complaints about shader recompilation time. Unfortunately recompilation is required for updating shaders and as shader variants count is more then 500.000 (half of million) and shader count will increase in future, recompilation will take some time.
The only solution I've found is - pack shaders inside packages and give you options to import/exclude them manually. In this case you control what shaders you have inside project and speed up recompilation:




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Keep up the WONDERFUL work. Your efforts do not go unnoticed.
=)

 

Hi, I am working in the Unity 4 version of curved world. And want to achieve a similar effect to your example https://dl.dropboxusercontent.com/u/49615231/Asset Store/Curved World 2/curved_world_2d_poster.png but with 3d assets or as I have done previously with a cylinder. Is this possible in Unity 4? I can't seem to get the cylindrical wrap around effect needed.

 

It is available only in Curved World 2, that works only with Unity 5.



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Thanks tried it in Unity 5 and worked great. Project Bend type would it be possible to have that / scene. I want to use this in different mini games but looks like I can't have different bend types in different scenes.

Regards Andreas

 

It is possible, but you have to do it manually and you will need some shader programming knowledge.

Bend type of all shaders is defines inside CurvedWorld_Base.cginc file (line: 27).
Delete that line and define bend type per shader:

Definition of bend types are:
V_CW_BENDTYPE_CLASSIC_RUNNER
V_CW_BENDTYPE_LITTLEPLANET
V_CW_BENDTYPE_UNIVERSAL
V_CW_BENDTYPE_PERSPECTIVE2D

Do not modify original shaders, create copy of them with desired name and bend type.

Do not forget to modify fallback shaders (3 VertexLit shaders).
If you are using image effects you will need to provide correct shader RenderType (Camera-DepthNormalTexture.shader)



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Thanks! Will take a look.

Edit:

Got it working Thanks!

 

Hi!

First of all thanks for this product, it is really helpful !

I have a question about mobile + shadows.
I wanna try real time shadows on the main character.
It does work in the editor + PC builds but not on mobile.
Any clue ?

I am using Mobile -> 1 Directional shader
and I have this...
WARNING: Shader Unsupported: 'Hidden/VacuumShaders/Curved World/VertexLit/Diffuse' - Setting to default shader.

Cheers

 

Seems hardware problem rather than shader.
1. What is the mobile?

2. Try Unity built-in 'Legacy Shaders/Reflective/VertexLit' shader (Curved World fallback shader is based on it), does it throw the same warning?

3. Not quite correct solution but try it:copy 'ShadowCaster' pass from 'Hidden/VacuumShaders/Curved World/VertexLit/Diffuse' to your 'Mobile -> 1 Directional' shader and remove fallback line (see attached image).


4. Or leave all shaders untouched, but modify 'Hidden/VacuumShaders/Curved World/VertexLit/Diffuse' shader only. It contains 4 passes:

1. // Vertex Lit, emulated in shaders (4 lights max, no specular)
2. // Lightmapped
3. // Lightmapped, encoded as RGBM
4. // Pass to render object as a shadow caster
Try removing that passes one by one to check which one can not handle your mobile device.​

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Hi. Me for a project on space simulator, you need to create and generate the planet that they were objects that enveloped them on the surface.If your asset?

 

Thanks for the quick answer!

iPad Mini 2.

And I am also using Asset Bundles...

And the Shadows actually doesn't work neither on PC.

But it works with Curved Standard Shader.

I will try you next suggestions later today.
Cheers

 

Shader can not generate 'real' 3d planets if you are asking about it. Shader bends mesh per-vertex creating curvature effect.



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Hi Arkhivrag,

First off i am amazed at this product bought it as soon as i came across it, love it.

I am having a slight issue though with trees on the terrain basically not apply rotation or applying to the curved terrain.

Grass however gets applied just fine


Thanks for the great product!

P.S I am not a pro at shaders and relativvely new to unity, was previously a java programmer using libgdx.

Best

Daniel

 

Tree assets used by terrain must use Curved World shaders as well (Nature package). If after changing tree material shader it's still not bend, save scene and restart Unity.



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Hey Davit, i got Curved World some time ago, but just recently had the chance to play with it and im extremely happy with the results, exactly what i need to bring my idea to life.
Works beautifully with PlayMaker as well (using get and set property).
Im using it with Unity 4.6 Pro (not planning on upgrading at the moment) and it works when i build for PC, but does not work on Android (hangs on the Unity splash), i do not have Pro for mobile. Is that the problem?

Thanks man, keep up the excellent work!

 

Curved World 2 is only for Unity 5.
I'll download Unity 4 later today to test old Curved World, it had no problems before.



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Great Shader, how can I pay twice for it? Yes, its that good.

 

Thanks will give it a go

 

Thanks a lot!

 

Just tested on Unity 4.6.8f1, all example demo scenes build and run without problem on Android (Kindle Fire, Android 2.3.7).
Try with fresh project, only Curved World. Shader can not freeze Unity.



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Hey so in the end for the shadows, I am using Standard Shader.
Which shader should I include in my project to get it work ?
I am using a prefab with a list of shader that needs to be included in the build because I use Asset Bundles.

Thanks a lot,

Cheers,
Tim

 

Standard shaders use VertexLit/Diffuse as Fallback.
Fallback shaders are defined at end of shader file, you can check it manually.



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Hello,
first of all, it's nice to have this shader update. But i'm still wondering, can i use outline shader on this? i really need it for my projects, need to be curve and have outline on the main character also. How can i do that?

 

Super cool thanks, now i know the problem is on my end!
Your Unity Android is not pro, right?

 

If you know a little bit of shader programming or have someone in team, you can modify your outline shader to support Curved World, check CustomShaders.pdf inside Doc folder.
Or wait for Curved World v2.1, it will include cartoon shaders.

Yes, it is not Android Pro.



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Thanks

 

In about two weeks. Waiting for releasing Unity 5.2, it will have some changes in rendering pipeline (again) and I will have to update shaders as well.



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