Revolve Practice


Create 4 curves and align them using snap to curve. 2 angular (linear) and the other 2 curvy (cubic)

Take a screen shot with all three curves selected.

4-curves


Attach Curves:  Select all the curves, choose Curves > Attach.  Change the following Settings:
attach

Delete History: Select the new attached curves and choose Edit > Delete by Type > History

Revolve Curves: Select the new attached curves and choose Surfaces > Revolve. 

revolve

revolve2


*If your surfaces show up black, reverse curve direction.  Select the surface,  Surfaces > Reverse Curve Direction

Assign New Material:  Right-click on the surface and Assign New Material.  Choose aiStandardSurface

Turn in a screen shot of both the curves and the revolved surface.

Reflecting Light is a transverse, electromagnetic wave that can be seen by humans.

The photon is the basic "unit" of light.

Any light that you see is made up of a collection of one or more photons propagating through space as electromagnetic waves. In total darkness, our eyes are actually able to sense single photons, but generally what we see in our daily lives comes to us in the form of zillions of photons produced by light sources and reflected off objects. If you look around you right now, there is probably a light source in the room producing photons, and objects in the room that reflect those photons. Your eyes absorb some of the photons flowing through the room, and that is how you see.

For instance, a photon in the visible spectrum would contain an energy of approximately 4 X (10 to the power of -19) joules Thus, a perfectly efficient 100-watt light bulb would emit approximately 2.5 X (10 to the power of 20) photons per second.

First . . . Download a “Cool” HDRI file.

HDRI Images Sources

HDRI Image Source 1: http://www.pauldebevec.com/Probes/

HDR image Source 2: http://www.hdrlabs.com/sibl/archive.html

* I used this one for my test.

Single Image Light Probes

The following light probe image were created from single high dynamic range images of a mirrored ball. Since just a single image was used, the images show the camera and the photographer and they are not well sampled in the area that is opposite the camera.

Kitchen at 2213 Vine St
640 × 640
Dynamic range: 2000:1

Angular map: .hdr