Is it possible to generate a Spheremap from a Texture2D in Unity at run-time?

I was trying to create a dynamic spheremap from a Texture2D for a skybox at run-time (Standalone build). Does anyone know if this is possible and how to do that?

Separately, is it possible to generate a cylindrical cubemap at run-time if spheremaps are too difficult to achieve?

 

you can modify UVs at run time... not sure if that's what you are after?

 

Not exactly, but that might help part of the problem. I already know how to access and modify uv's on a Texture2D at run-time, but I don't know how to do that for a spheremap in Unity.

 

maybe helpful
http://www.binpress.com/tutorial/creating-an-octahedron-sphere/162

 

@rakkarage While that seems okay for a mesh sphere, unfortunately that won't work with a spheremap. I'll keep looking.

 

@Aras I know you're a busy guy, but any insights into this?

I'm aware of RenderToCubeMap, but I'm not sure that would do what I need specifically. Is it possible to take a Texture2D and convert it to a Cubemap with spheremap mapping at run-time? I'm trying to create a spheremap skybox that updates its Texture2D at run-time.

 

I seems RenderToCubeMap is only really useful for simulating reflections. It won't help with converting a Texture2D to a Cubemap/Spheremap at run-time.

 

Anybody else have any idea how to generate a spheremap at run-tiime from a texture?

 

for my own edification... what do you mean by spheremap? (I keep envisaging the example textures in modelling tools when you say that )

 

@LeftyRighty By spheremap, I mean in the Unity editor when you create a cubemap by importing a texture, you can set it's cubemap mapping settings to spheremap as shown here:



I'd like to be able to take a texture or Texture2D at run-time, load it, then create a cubemap with spheremap settings. Thus, I could create a dynamic spheremap from a Texture2D for a skybox at run-time.

 

any news?
i'm trying to do something similar, only i'm trying to source a cylindrical cubemap from a texture2d at runtime.