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May 13, 2004 DiamCalc 2.3.1 is released.
- Added export of the model to binary and ASCII stereolithography
format (STL). See "Cut" - "Export cut" menu.
- Fixed bug: "If the DMC file was opened by double-click
on it and consequent automatic load of the DiamCalc, the DiamCalc
mistakenly displayed a message saying that the DMC file was made
with more recent version of DiamCalc".
What is new in the DiamCalc 2.3.0?
April 20, 2004 DiamCalc 2.3.0 is released.
New features
- BLR calculation is allowed for non-round cuts. The table's area
is taken into account.
- The algorithm for calculation of photoreal images is changed.
It takes into consideration now the changes in the angle of divergence
of non-parallel beams during refraction.
- The calculation of Leakage mono and Leakage Stereo in Cut Quality
estimation was disabled. We have calculated integral leakage value
before. It was not correct, because weak leakage does not make
Brilliance worse (see the plot below). But the weak leakage over
large area may give the same integral coefficient as a strong
leakage over small area. That it why it is necessary to change
the approach to leakage estimation. We have not found the new
correct formula yet.
- Added possibility to edit imported convex cuts of any format,
not only GemCad ASCII. Implemented parameters: average diameter;
crown, pavilion heights; distance between crown and pavilion;
culet and table offsets in horizontal plane. Non-convex cut are
imported, but without the possibility of editing. It is allowed
to create an editable convex hull during import of non-convex
model. Press "Advanced" button in the parameters panel
to open the new window. This button becomes available after import
of some cut. Advanced editing of the convex imported cuts allows
adjusting the position of any facet. The new GUI of advanced editing
allows viewing the model from up to four views with arbitrary
zoom and displacement. Use left mouse button to rotate the model,
right mouse button to move the model and mouse wheel to change
zoom. For more detailed description of the new window see the
"Adjusting shape of arbitrary imported 3D model of the diamond"
section in the manual.
- The OctoNus Helium software can now export model of the scanned
diamond and its parameters to DiamCalc DMC file. DiamCalc can
read such files and display the scanned model and its parameters.
DiamCalc can generate the same reports on scanned diamond as Helium
does using the data provided by the Helium. For more information
about Helium please visit Helium
system page. For detailed description of the new reports see
the "Creating diamond reports" section in the manual.
- The new "Radiant" cut was added.
- Restored the red-blue stereo mode (menu "View" - "Stereo
mode ON").
- Added special lighting for better viewing of the photoreal images
in red-blue stereo mode (menu "Options" - "Special
view" - "Red-blue stereo"). This is just another
lighting, which may be turned on in usual mono mode, as well as
any other lighting may be turned on in red-blue stereo mode. The
settings for this lighting are picked up in such a way, so as
to make the perception of the 3D effect of the photoreal image
of the model easier.
- Other cut quality results became slightly different also. Two
years ago we began to develop a new visualization algorithm that
would take into account the finite dimensions of the eye aperture,
depth resolution, astigmatism, etc. This is necessary for correct
estimation of Scintillation and Fire. We need to switch to another
model of light propagation for it. This work is not finished yet,
but we have included one of our intermediate results in this version.
Our tests showed that the new program simulates the photo much
better in cases when the ray leaves the diamond at an angle close
to critical. We have done it more that half a year ago and have
not announced it till now, because we hoped to finish the work
completely. As it turns out we need at least half a year more,
so we decided to make a partial upgrade of the modeling algorithm
right now.
- The default quality of photoreal image calculation for round
shape is increased. The number of ray reflections for pattern
calculation is set to 4, for intensity calculation is set to 30,
the same as for fancy shapes.
- The IdealScope lighting settings are corrected.
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DiamCalc 2.2.1 |
DiamCalc 2.3.0 |
- The lightings "HA Table" and "HA Pavilion"
are combined into one "Hearts & Arrows". Now turning
on the "Hearts&Arrows" lighting does not change
the simulation parameters and does not rotate the stone. Use "Top
view" and "Bottom view" buttons to view the stone
from the table and pavilion sides.
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Top view |
Bottom view |
- Import from TXT file with parameters recognizes two additional
parameters: Star Facets, Lower Facets. See SampleImport.txt for
example.
- Added possibility to export arbitrary convex model to GemCad
ASCII format.
- The format of DiamCalc DMC files for scanned cuts was changed
to enable advanced cut editing. Consequently, the format of GemAdviser
GEM files was changed also.
- The background color for photoreal image is taken from the
lighting settings. Different splitted views use different light
sources. The background may be of any color and is displayed using
the monitor settings (gamma).
- The background color for draft models is not connected to lightings.
- The background picture is not removed when the background color
is changed. Added a new menu item for removing the background
picture.
- Added "Batch processing" command to the "Cut" menu. It allows
converting a series of files from Sarin SRN format into GemAdviser
GEM format.
- Added command to movie menu that allows appending of the movie
to existing one. Load the first movie as usual; use "Append" command
of the Options -Animation - Movie menu to choose another movie
file for appending. The second movie should have the same quantity
of frames, the same vertical size of the frame and the same color
depth as the first movie. It is recommended to use true-color
movies for this operation. If movies have 8 bits color depth,
the palette of the first movie is used.
- Side azimuths are displayed in the range of [0; 360] degrees.
- Status line shows the current frame size.
- In the ray tracing mode the status line shows the current mode
(Power/Intensity) and the wave length for which the values over
the rays are drawn.
- Added "Bottom view" button to the toolbar.
- Added "Always on top" option to the "View" menu.
- The "Heart" cut was corrected and updated.
Fixed bugs
- Fixed girdle thickness AGS appraiser. It uses "Girdle Height"
parameter measured in percents now instead of millimeters.
- The "Lower facets" parameter was removed from all
appraisers except "Russian".
- The "Incandescent lamp" lighting now switches off
correctly.
- The "Firescope" lighting sets the lens parameters
to definite correct values.
- When the "Smart bright" mode in the lighting was enabled,
it was impossible to switch to draft view.
- Some simulation parameters were not saved in DMC file, like
eye color adaptation, lens parameters, special view settings used
for evaluation of fish eye, light leakage, light return and contrast.
Fixed saving of simulation parameters to DMC file.
- Fixed setting of "Prism" cut parameters.
- The button of the "Fish Eye" parameter in cut quality
estimation now shows a short description.
- Fixed import of cuts.
- Fixed import from DXF format - the resulting cut was mirrored.
- Fixed import from the GemCad ASCII format. The cuts with clockwise
direction of gear teeth and non-zero bottom index are imported
correctly now.
- If the file already existed during movie export to AVI file
it was not truncated to new size.
- If the generated movie has 8 bits per pixel, it is converted
to 24 bits per pixel during its export to AVI without compression,
because standard movie player does not playback movies with 8
bpp.
- The DiamCalc did not clear its window contents during movie
playback which could lead to garbage on screen.
- Fixed drawing of the model in the Word report. Now all models
are drawn exactly the same as they are drawn on screen after using
"Top view" and "Bottom view" toolbar buttons.
- Minor fixed in Word report template.
- Fixed highlighting of sides in the model.
- The menu item "Prices" shows checkmark when the prices are shown.
Versions history
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