Learn how to use fisheye camera projection.
- [Narrator] Wide-angle lenses on real world cameras…exhibit a specific type of distortion…called barrel distortion or spherical distortion,…and that's different from the standard distortion…that we get from a perspective projection…in a CGI camera here.…But, the Arnold camera attributes allow us…to introduce fisheye lens…or barrel distortion into renderings.…And that'll help to correct for certain types of distortion.…Previously in the course,…we use an AI Physical Sky with a sun disk.…
And, at wide angles, it looked a bit distorted,…and we can correct for that.…Let's open up the Arnold RenderView.…And the disk of the sun, shown here,…is a little bit stretched.…Let's open up the camera attributes.…Go to the camera panel, and in the View menu,…choose Camera Attribute Editor.…We have a focal length of 18 millimeters,…giving us a 90 degree angle of view.…Let's scroll down in the Attribute Editor…and open up the Arnold section.…
And here we have the ability…to choose different projections for the camera type.…Once that's finished rendering,…
AuthorAaron F. Ross
- Arnold rendering concepts
- Lighting with Maya and Arnold lights
- Controlling exposure
- Filtering light with Barndoor and Gobo
- Light attenuation with decay
- Image-based lighting with SkyDome
- Exterior daylight with Physical Sky
- Arnold standard 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
Rendering refraction4m 56s
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