Projection
Projection creates spherical or cylindrical image of environment out of 6 images, each representing 90 degree view in one direction along rectangular coordinate system's axes.
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To create input images render your scene with camera FOV set to 90deg and square resolution (width=height). Here is how you can do it in some programs:
- Terragen: use script included in distribution (panorama.tgs).
- Maya: In camera properties enter FOV=90. Make 5 copies of camera and rotate them to point in appropriate directions.
- trueSpace: Set scale of camera in z direction to 0.42; copy the camera 5 times and rotate each copy accordingly. If you don't intend to do panoramic animation it is easier to render each image as consequent frame in animation where only camera rotates.
When you have 6 images open Projection and load them in. Move (drag), rotate and flip them until they fit together and then select Project|Sphere or Project|Cylinder. After program is finished with calculation it will display result. Save the image.
You can view result with PTViewer from Helmut Dersch, create QuckTimeVR, or use it as a texture/environment map in further rendering.
Download Projection 1.0