What is DiamCalc and who benefits from it
What is new in the DiamCalc?
High Dynamic Range Demo movies
Caustic Movies in the next versions of DiamCalc
Scenarios - Demo files demonstraite different possibilities and effects of the program
Press Release DiamCalc 3.0 and DiamCalc 3.0 Pro launched by OctoNus
Diamond 3DBook free full version on-line
Video Tutorial - Using DiamCalc & GEM Adviser
DiamCalc Internal Cuts
External cuts (DLL)
Versions history
System requirements
Information for Mac users
Online Store
Illustrated reports
Download DiamCalc
DiamCalc 3.2 beta Documentation (PDF)
External Cuts gallery (Dll)
Online Store
Complete guide
Quick guide on Key operations (How to..)
OctoNus spread & AGS spread
Cut parameters
Cut Quality Estimation
How to Create High dynamic range (HDR) panorama
3DCalc Pro

3DCalc family
DiBox 2.0
GemAdviser Free Version
Helium IG
Helium Polish
Helium Rough
Helium Tender
M-Box 2.0
M-Box 1.5
Oxygen DZ
Oxygen HIG
Oxygen Immersion
Oxygen Inclusion
Oxygen Microscope Server
Oxygen Viewer Free Version
Oxygen XRay Server
Pacor Client
Stereo Viewer Free Version

PACOR - Advanced Computer technologies for Processing of Rough diamonds
Laser Mapping of Concavities
Scanning major and minor symmetry features
Technology patent "A method and apparatus for locating inclusions in a diamond stone"
Immersion Glass
DiamCalc HDR Panoramas

DiamCalc lighting environment can be defined by a high dynamic range panorama, also referred to as HDR panorama. Luminance or radiance observed in the real world can usually be stored in special high dynamic range images that correspond to actual physical values. This additional information makes high dynamic range images that are different to traditional digital images that may appear on a monitor or on a paper print.

There are example of HDR panorama - the Holloway Diamonds, Canterbury.

HDR panorama - Holloway Diamonds, Canterbury - halogens, metal halide and daylight
HDR panorama - Holloway Diamonds, Canterbury - halogens, metal halide and daylight

Download full size hdr panorama, Color, 4096x2048px (19,2 Mb)

Download full size hdr panorama, Grayscale, 4096x2048px (7,37 Mb)

To load HRD panorama image into DiamCalc:

  • Select from menu Options / HDR Settings..
  • Open tab Panorama in the HDR settings window
  • Uncheck Enable Light Sources and Enable standard Lights in the section Lights
  • Check Enable external image in the section External
  • Press button Load HDR panorama
  • Select panorama image (hdr, jpg, bmp, tiff etc) in the Open external panorama file dialog window
  • Press button Open
  • Panorama preview appears in the Preview window
  • Press button Apply or OK to accept panorama and see new diamond image

*For better result option Enable stars should be selected in the section General tab Rendering of HDR settings window