"Rolling world effect" with camera shader, is it possible?

Unity Engine
1

Hi,

The title pretty much says it all. I’m trying to accomplish a rolling world effect in my game, is it possible with just a camera shader in theory? Or does it have to be a shader applied to all meshes in my scene?

At the time I got very little knowledge about shaderscripting, but I’m trying to learn by doing some tutorials and tweaking the “image effects” in Unity. All help is appreciated:)

Thanks.

2

I don’t know what a camera shader is and I’m not sure what a “rolling world effect” is. If it is the visual deformation of a flat world to convey the impression of moving on a very small planet then a vertex shader applied to all meshes might do it but that solution might come with some problems (e.g. ray casting doesn’t work that well any more).

I don’t see how to do this effect with a camera script or an image effect.

3

Thank you, and sorry for my bad explanation.

I’m trying to achieve the same effect as the game above (which is also made with Unity).
Thanks again.

4

This’d have to be applied to all meshes in your scene. Otherwise you’d get pretty horrible results trying to smush the screen image into a similar shape.

5

Yes its possible with an image effect. But there may be distortions here and there.
Thing is, coding your game and preparing your assets according to a spherical environment (in that example game, its a continuous road with a slope i guess) is much easier in the long run and gives you more control on which objects are visible to the camera…etc

6

Right, thank you all.
My road will be neverending aswell, but also contain some curves and 90 degrees turns so developing it in a flat enviorment, and just add that little “roll” effect as a renderingtrick would be a huge timesaver (I think) :slight_smile:

7

Not really, because at the end, you will have to model your objects in a way to hide the distortion made by the image effect itself.

8

As aubergine pointed out, using an image effect will result in visible rendering artifacts (e.g. disocclusions) which you then probably have difficulties to fix. (When I wrote “I don’t see how to do this effect with a camera script or an image effect.” I meant that I don’t see a reasonable way how to do it. :wink: )

9

Ok, I´ve retired the whole image effect plan. Got a vertex shader on each object related to the enviorment in my scene, and it seems to bend quite nice.
Will do some more testing.

Got alot to learn about shaders :o)
Thanks for your time!