Rendering Diamonds

Real - Time Rendering of Cut Diamonds Technical Report

Natural-color Yellow Diamonds

widely encountered of the “fancy color” diamonds (figure 1). From 1998 to the present, GIA has issued grading reports on more than 100,000 yellow diamonds, by far the most common of the fancy-color diamonds submitted to our laboratory. In 2003, for example, 58% of the diamonds submitted for GIA Colored Diamond Grading Reports or Colored Diamond Identification and Origin of Color Reports were in...

Synthesis of skeletal diamonds: Implications for microdiamond formation in orogenic belts

Figure 1. Secondary-electron scanning electron microscope images showing morphologies of (A) natural and (B, D, and E) synthetic diamonds. C: Energy-dispersive X-ray spectrum for diamond in B. Natural diamonds are separates from felsic gneiss of Kokchetav massif, Kazakhstan. Synthetic diamonds are crystallized from graphite 1 Mg(OH)2 systems and exhibit irregular skeletal morphology similar to ...

ar X iv : 1 70 8 . 02 14 5 v 1 [ m at h . L O ] 7 A ug 2 01 7 JOINT DIAMONDS AND LAVER DIAMONDS

We study the concept of jointness for guessing principles, such as ♦κ and various Laver diamonds. A family of guessing sequences is joint if the elements of any given sequence of targets may be simultaneously guessed by the members of the family. We show that, while equivalent in the case of ♦κ, joint Laver diamonds are nontrivial new objects. We give equiconsistency results for most of the lar...

Rendering Light Dispersion with a Composite Spectral Model

Light dispersion is an optical phenomenon wherein lights are decomposed into monochromatic components and become colored such as in crystal stones and diamonds. This paper proposes to render light dispersion with a ray tracer based on a composite spectral model. This model decomposes any spectrum into a smooth component and spikes, and offers a convenient vehicle for describing monochromatic li...