| 2540 |
|
produce "-ld+" without requiring input picture as argument. |
| 2541 |
|
|
| 2542 |
|
Added automatic overture calculation to rtpict with -n > 1 if |
| 2543 |
< |
ambient cache is on and file is named. Random image sampling |
| 2544 |
< |
avoids some of the issues with redundant calculations but not all. |
| 2543 |
> |
ambient cache is on and file is named. If straight image output |
| 2544 |
> |
is requested, we randomize all samples and avoid cache collisions. |
| 2545 |
> |
|
| 2546 |
> |
Added cnt -s option to shuffle output. |
| 2547 |
> |
|
| 2548 |
> |
Fixed issue with divide-by-zero errors in the ambient super-sampling |
| 2549 |
> |
routine discovered by Jon Sargent of Solemma. This affected regions |
| 2550 |
> |
that had zero radiance, such as black backgrounds or unlit areas |
| 2551 |
> |
with -av 0 0 0, when super-sampling was effectively disabled, causing |
| 2552 |
> |
some loss in accuracy of the results. |
| 2553 |
> |
|
| 2554 |
> |
Updated Klems Half- and Quarter-bases to match angles currently used |
| 2555 |
> |
in WINDOW. |
| 2556 |
> |
|
| 2557 |
> |
Eliminated most aiming failures for triangular light sources, at the |
| 2558 |
> |
expense of conservative sampling near the centroid. Thanks to |
| 2559 |
> |
David Geisler-Moroder for his help on this. |
| 2560 |
> |
|
| 2561 |
> |
Increased maximum set size to 8191 to avoid set overflow errors. |
| 2562 |
> |
|
| 2563 |
> |
Added source obstruction test to statistics being kept on which |
| 2564 |
> |
sources were visible in adaptive shadow testing code. Previous |
| 2565 |
> |
behavior was likely over-estimating source contributions. |
| 2566 |
> |
|
| 2567 |
> |
Added diffuse components into maximum directional hemispherical |
| 2568 |
> |
reported by checkBSDF, so comparing to 100% is easier for each |
| 2569 |
> |
component. |
| 2570 |
> |
|
| 2571 |
> |
Fixed incorrect calculations in iso2klems script, thanks to |
| 2572 |
> |
help from Jacob Jonnson. |
| 2573 |
> |
|
| 2574 |
> |
Updated official copyright and license according to new wording |
| 2575 |
> |
provided by Jean Haemmerle at the LBNL Intellectual Property Office. |
| 2576 |
> |
Both were copied verbatim from e-mail I received from Taoning Wang |
| 2577 |
> |
on 8/20/2022. |
| 2578 |
> |
|
| 2579 |
> |
Added -features option to rpict, rtrace, and rcontrib to check |
| 2580 |
> |
which features are present or look for specific feature support. |
| 2581 |
> |
This addition was suggested by Peter Apian-Bennewitz as an easier |
| 2582 |
> |
way to determine which version of Radiance is installed and what |
| 2583 |
> |
it supports, and is timely as we begin our refactoring of the |
| 2584 |
> |
rendering code. There are no current plans to add this to rvu. |
| 2585 |
> |
|
| 2586 |
> |
Added falsecolor -odim, -orct, and -c0 options to overlay grid of |
| 2587 |
> |
values on image. This was requested by Rob Shakespeare. |
| 2588 |
> |
|
| 2589 |
> |
Added -i* and -o* options in rhcopy for reading rays from the |
| 2590 |
> |
standard input and writing rays from holodeck to standard output. |
| 2591 |
> |
This will hopefully be useful in combining rholo with rcontrib. |
| 2592 |
> |
|
| 2593 |
> |
Added further checking for coincident (overlapping) flat surfaces, |
| 2594 |
> |
preferring front sides to back sides in the ray intersection |
| 2595 |
> |
calculation. This only applies to rings and faces, as the other |
| 2596 |
> |
surface types would have required additional calculations to |
| 2597 |
> |
make them work. Material transparency is still the primary |
| 2598 |
> |
consideration, now followed by ray hit side, followed by |
| 2599 |
> |
modifier definition order in the input. |
| 2600 |
> |
|
| 2601 |
> |
Increased octree and object limits to allow scenes with billions |
| 2602 |
> |
of primitives. |
| 2603 |
> |
|
| 2604 |
> |
Made reciprocity averaging default to "off" in bsdf2ttree, as it seems |
| 2605 |
> |
to create more problems than it solves. |
| 2606 |
> |
|
| 2607 |
> |
==================== |
| 2608 |
> |
Version 6.0 |
| 2609 |
> |
|
| 2610 |
> |
Extensive changes to enable spectral rendering, which defaults to "off" |
| 2611 |
> |
to maintain backwards-compatibility with previous versions, with the |
| 2612 |
> |
exception of the ambient file format, which is changed. The MAXCSAMP |
| 2613 |
> |
macro, which defaults to 24, sets the maximum number of spectral samples. |
| 2614 |
> |
The actual number of samples is set by the "-cs" option, which defaults |
| 2615 |
> |
to 3 for rpict, rtrace, and rcontrib. The latter two programs support |
| 2616 |
> |
straight spectral output, but rpict is initially restricted to |
| 2617 |
> |
tristimulus output pictures. New pattern primitives "spectrum", |
| 2618 |
> |
"specfile", and "specfunc" have been added as a means to specify |
| 2619 |
> |
spectral reflectance, emittance, etc. to materials that still have |
| 2620 |
> |
only 3 color channels. Those RGB channels will still affect the |
| 2621 |
> |
spectrum if used. Unfortunately photon-mapping is currently broken when |
| 2622 |
> |
spectral sampling is enabled, but we will fix this as soon as possible. |
| 2623 |
> |
Calculation overhead appears to be approximately 10-15% for RGB |
| 2624 |
> |
renderings compared to version 5.4a. |
| 2625 |
> |
|
| 2626 |
> |
Added spectral rendering to rvu as well, and made -cs and -cw |
| 2627 |
> |
options standard across the rendering library. I also brought |
| 2628 |
> |
mkillum, ranimove, rsensor, and mksource into the fold. These |
| 2629 |
> |
tools were broken in the initial release. (Hopefully, they are |
| 2630 |
> |
working now, but none have been tested as yet.) |
| 2631 |
> |
There was also an indexing bug in the spectral->RGB conversions |
| 2632 |
> |
that made reds into blues and vice versa, which has been fixed. |
| 2633 |
> |
|
| 2634 |
> |
Added i/o for spectral pictures to rmtxop, the first program that can |
| 2635 |
> |
ingest them. (Only rtrace, rcontrib, and rfluxmtx can render them.) |
| 2636 |
> |
New symbolic rmtxop -c options, such as RGB, XYZ, S (for scotopic) |
| 2637 |
> |
and M (for melanopic) make color conversions simpler. Alternatively, |
| 2638 |
> |
a reference matrix or picture may be given and the color space of |
| 2639 |
> |
that file will be used. The -C option takes either a symbolic |
| 2640 |
> |
color space or reference file and is "sticky," so it applies to |
| 2641 |
> |
all subsequent input files that do not have their own -c right ahead |
| 2642 |
> |
of them. |
| 2643 |
> |
|
| 2644 |
> |
Added spectral picture support to rcrop and radcompare. |
| 2645 |
> |
|
| 2646 |
> |
Added new utility, rcomb, which is something like a combination |
| 2647 |
> |
of rmtxop and pcomb, it works with all the inputs and |
| 2648 |
> |
outputs that rmtxop handles, but allows for general expressions |
| 2649 |
> |
like those in pcomb for putting matrices together, working on |
| 2650 |
> |
an element at a time. (No resizing of matrices or accessing |
| 2651 |
> |
neighboring elements, as permitted in pcomb.) It saves memory |
| 2652 |
> |
over rmtxop by operating on a row at a time, so can handle |
| 2653 |
> |
input and output matrices with any number of rows. It does |
| 2654 |
> |
provide for a single matrix-multiplication operation at the end, |
| 2655 |
> |
which only requires memory for that final matrix. |
| 2656 |
> |
|
| 2657 |
> |
Added support for filtering hyperspectral images to pfilt. |
| 2658 |
> |
|
| 2659 |
> |
Added support for 1- and 3-component float matrix i/o to |
| 2660 |
> |
pcomb to allow for better interoperability. |
| 2661 |
> |
|
| 2662 |
> |
Added support for -co+ option to rtpict, so it can directly |
| 2663 |
> |
produce hyperspectral images. |
| 2664 |
> |
|
| 2665 |
> |
Added new "specdata" and "specpict" primitives to support |
| 2666 |
> |
interpolated spectral data files and hyperspectral images |
| 2667 |
> |
as patterns. |
| 2668 |
> |
|
| 2669 |
> |
Added support for multispectal sampling in rsensor, which will |
| 2670 |
> |
put out as many color channels as specified in any -cs option |
| 2671 |
> |
(default is 3 for RGB). |
| 2672 |
> |
|
| 2673 |
> |
Added ability of mgf2rad to convert spectral data at least |
| 2674 |
> |
for light, glow, plastic, and metal primitive types. Need |
| 2675 |
> |
to use new '-s' option to get new output. |
| 2676 |
> |
|
| 2677 |
> |
Added handling of spectral images to rcode2bmp script. |
| 2678 |
> |
|
| 2679 |
> |
Minor change to rcollate to allow explicit byte records to |
| 2680 |
> |
be any specified length without checks against header input. |
| 2681 |
> |
|
| 2682 |
> |
Added new hemisphere type to rfluxmtx, "h=cie" for CIE sky |
| 2683 |
> |
scanner positions. These are 145 patches with identical |
| 2684 |
> |
row counts to Tregenza, but starting from a different |
| 2685 |
> |
azimuth and reversing row directions at adjacent altitudes. |
| 2686 |
> |
|
| 2687 |
> |
Added optimization for long argument lists and arrays in |
| 2688 |
> |
the calcomp routines used for rendering and in rcalc, etc. |
| 2689 |
> |
|
| 2690 |
> |
Added error estimate spreading to ambient super-sampling |
| 2691 |
> |
algorithm (-as) to improve performance especially in |
| 2692 |
> |
scenes with sharp cut-offs. |
| 2693 |
> |
|
| 2694 |
> |
Added -i option to gendaymtx to match -i option of gendaylit. |
| 2695 |
> |
Thanks to Yongqing for initial implementation. |
| 2696 |
> |
|
| 2697 |
> |
Changed rcrop so negative #rows or #cols counts back from end. |
| 2698 |
> |
|
| 2699 |
> |
Added rcomb -n option for multi-processing of very large matrices. |
| 2700 |
> |
|
| 2701 |
> |
Made it so rsplit and rlam can handle any number of input files |
| 2702 |
> |
up to active open file descriptor limit. |
| 2703 |
> |
|
| 2704 |
> |
Taoning Wang added genssky tool for generating spectral sky |
| 2705 |
> |
descriptions. |
| 2706 |
> |
|
| 2707 |
> |
Taoning added gensdaymtx utility based on gendaymtx, and |
| 2708 |
> |
added epw2wea -a option to include required information. |
| 2709 |
> |
|
| 2710 |
> |
Fixed bug introduced in Auguest 2022 (5.4 release) in distant |
| 2711 |
> |
light source sampling, which caused aiming failures. (Thanks |
| 2712 |
> |
to Mike DiPompeo of LightStanza for reporting the issue.) |
| 2713 |
> |
|
| 2714 |
> |
Added rxpict rendering tool based on C++ RpictSimulManager class. |
| 2715 |
> |
Multi-processing and spectral output are supported. |
| 2716 |
> |
|
| 2717 |
> |
Wrote rxpiece tool that will render pictures using tiling and |
| 2718 |
> |
can handle different output formats and hyperspectral pictures. |
| 2719 |
> |
Only runs on a single machine, however -- no NFS locking on |
| 2720 |
> |
shared volumes. Mainly a demonstration tool for RpictSimulManager |
| 2721 |
> |
C++ class, but may have its uses. |
| 2722 |
> |
|
| 2723 |
> |
Fixed a bug in BSDF sampling of sources pointed out by |
| 2724 |
> |
David Geisler-Moroder, which tended to overestimate specular |
| 2725 |
> |
contributions for some BSDFs. |
| 2726 |
> |
|
| 2727 |
> |
Added crude ability to read and convert spectra to RGB in ximage, |
| 2728 |
> |
ra_bmp, ra_ps, and ra_rgbe programs. Also updated fast tone-mapping |
| 2729 |
> |
library to handle spectral HSR inputs at the same time. HSR |
| 2730 |
> |
input handling was added in a similar fashion to pcond and pvalue |
| 2731 |
> |
for convenience. |
| 2732 |
> |
|
| 2733 |
> |
Added handling of hyperspectral images to normtiff, a handy program |
| 2734 |
> |
for quickly tone-mapping Radiance RGBE, XYZE, and now hyperspectral |
| 2735 |
> |
pictures, as well as IEEE float or LogLuv TIFFs. |
| 2736 |
> |
|
| 2737 |
> |
Added handling of hyperspectral pictures to pextrem, though |
| 2738 |
> |
results are still reported in RGB. |
| 2739 |
> |
|
| 2740 |
> |
Added accurate conversion of hyperspectral pictures to ra_xyze. |
| 2741 |
> |
|
| 2742 |
> |
Added hyperspectral picture conversion to ra_tiff, with accurate |
| 2743 |
> |
color when targeting 16-bit/comp., LogLuv, and float utput, |
| 2744 |
> |
and the approximate method for 24-bit RGB. |
| 2745 |
> |
|
| 2746 |
> |
Taoning added genssky -L option to specify global and diffuse |
| 2747 |
> |
illuminance values for output calibration. |
| 2748 |
> |
|
| 2749 |
> |
Created C++ class for rcontrib and example tool rxcontrib, which |
| 2750 |
> |
is an optional compile in the src/rt directory. The output |
| 2751 |
> |
model is more general in some respects and the operations more |
| 2752 |
> |
efficient, but standard output is not supported, nor is ASCII |
| 2753 |
> |
results data. |
| 2754 |
> |
|
| 2755 |
> |
Added strnstr.c compatibility module in ray/src/common, since |
| 2756 |
> |
it isn't present on Linux derivatives. |
| 2757 |
> |
|
| 2758 |
> |
Added WGMDfunc material type with programmable roughness and |
| 2759 |
> |
separate modifier paths for the different components. |
| 2760 |
> |
|
| 2761 |
> |
Added gensurf -i option at the request of Peter Apian-Bennewitz |
| 2762 |
> |
to reverse surface normals, mostly for data input, when it is |
| 2763 |
> |
a bit more difficult to adjust. |
| 2764 |
> |
|
| 2765 |
> |
Added rad -N option to rholo call for multiprocessing when |
| 2766 |
> |
mkillum and/or mkpmap are involved in octree prep. |
| 2767 |
> |
|
| 2768 |
> |
Added ability of gendaymtx to read EPW as well as WEA files. |
| 2769 |
> |
When EPW input is provided, the 3-hour average dew point is |
| 2770 |
> |
used to compute a more accurate precipitable water content |
| 2771 |
> |
value. It currently does not use these data directly from |
| 2772 |
> |
the EPW input, relying instead on a dew-point-to-W calculation. |
| 2773 |
> |
This follows the request and recommendations of David G-M. |
| 2774 |
> |
|
| 2775 |
> |
Removed limitation in rfluxmtx, which was disallowing distant |
| 2776 |
> |
and local receivers. Found this to be a perfectly valid approach |
| 2777 |
> |
for some annual daylighting scenarios. |
| 2778 |
> |
|
| 2779 |
> |
Wrote new pvsum tool to handle cases dctimestep can't, like |
| 2780 |
> |
spectral input pictures. It also adds a -N option for multi- |
| 2781 |
> |
processing on Unix machines, which utilizes memory-mapped |
| 2782 |
> |
inputs for efficient i/o sharing. |
| 2783 |
> |
|
| 2784 |
> |
Made it so genBSDF can use spectral rendering for a |
| 2785 |
> |
more accurate photometric result. |
| 2786 |
> |
|
| 2787 |
> |
Changed default matrix representation to float rather than |
| 2788 |
> |
double, which uses less RAM and supports faster operations |
| 2789 |
> |
in general. Build with compiler flag: |
| 2790 |
> |
-DDTnativeDTrmx_native=DTdouble |
| 2791 |
> |
to get back higher precision representation. |
| 2792 |
> |
|
| 2793 |
> |
Taoning Wang updated genssky and gensdaymtx to provide illuminance |
| 2794 |
> |
calibration and accept EPW files directly as input. |
