Render spherical barrel distortion with fisheye projection.
- [Instructor] Wide-angle lenses on real-world cameras…exhibit a specific type of image distortion…called barrel distortion, or spherical distortion.…And it's different from the look of a perspective projection…that we would see in a standard CGI camera.…But the Arnold camera attributes allow us…to introduce fisheye lens,…or barrel distortion, into renderings.…Let's do a render of the camera view…with no fisheye lens distortion.…
Go to the menus and choose Arnold, Render.…When that rendering has completed,…store it as a snapshot in memory…by clicking the camera icon in the lower right…of the Arnold render view.…Let's introduce the fisheye distortion.…Select the camera in any view port,…and open the attribute editor with Control + A.…At the top are the familiar camera attributes.…The angle of view for the camera is currently 90 degrees.…
And we've got the film back settings…that allow it to do things…like offset the image horizontally and vertically.…Scroll down a bit, and open up the Arnold section.…And at the very top is the camera type.…
AuthorAaron F. Ross
- Arnold rendering concepts
- Lighting with Maya and Arnold lights
- Controlling exposure
- Filtering light with Gobo
- Light attenuation with Decay
- Image-based lighting with Skydome
- Exterior daylight with Physical Sky
- Arnold Standard Surface material attributes
- Mapping material attributes
- Rendering refractions
- Mesh subdivision and displacement at render time
- Shading effects such as ambient occlusion and vertex color
- Camera effects such as fisheye and depth of field
- Animation image sequence rendering
Skill Level Intermediate
2. Studio Lighting
3. Natural and Environmental Lighting
4. Materials and Mapping
Next steps1m 2s
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