dome/fisheye projection

Hola~

Anyone know how to get Touch to output with a fisheye projection for a dome?

MO

Hola~

This would be another example of something that would be great to do with the SDK.

MO

this is what i need too… How to simulate fisheye camera?

Could you approximate it, by using a regular camera,
rendering with a Render TOP, then using the texture on a half sphere? (Sphere+Carve)

It is easier now with the new render cube map method in the render TOP. Then put that on a sphere as an environment map and go from there. It used to be you had to create multiple cameras, although the cube will give you some sides that you do not need, thus is less efficient than just using 4 cameras.
MD

I’ve had pretty good results rendering the scene orthographic and then using a vertex shader to map the x and y vertex positions to a unit circle based on the z depth.

I’ve heard that there is a shader that converts cube map to fisheye. May be someone knows where to find it?

Does anyone have an example of a physically accurate fisheye projection in touch?