PTDS

February 11, 2026
* Updated documentation.
* [MakePTDSDotsPalette 1.11] Added GRAPHICS=G/S shell argument.
* [MakePTDSDotsPalette 1.11] Fixed size of body-less palette files (the last 12 bytes were not saved).
* [PTDX Sandwich v1.5] Adapted to PTDQ_FillSelectorBitplanes().

February 10, 2026
* Added Horizonwards.
* [PTDX Sandwich v1.4] Improved handling of staggered lines deactivation (which also allowed the removal of a routine).
* [PVE v1.14] Improved handling of staggered lines deactivation (which also allowed the removal of a routine).
* [Texequencer v1.1] Improved handling of staggered lines deactivation (which also allowed the removal of a routine).
* [Texequencer v1.1] Touched up manual.
* [Zoomaniac v1.15] Improved handling of staggered lines deactivation (which also allowed the removal of a routine).
* [Zoomaniac v1.15] Touched up manual.

February 9, 2026
* Added Texequencer.

February 7, 2026
* [PTDX Sandwich v1.3] Removed an unused routine.
* [PTDX Sandwich v1.3] Removed 4 bytes of superfluous data.
* [PTDX Sandwich v1.3] Touched up manual.
* [PVE v1.13] Made a few internal changes.
* [Zoomaniac v1.14] Removed 4 bytes of superfluous data.
* [Zoomaniac v1.14] Touched up manual.

February 4, 2026
* Added more information to the TWEAKS section of the documentation.
* [PTDX Sandwich v1.2] Fixed and extended manual.

September 21, 2025
* [PTDX Sandwich v1.2] Renamed "PTDX Sandwich" (was "PTDXSandwich").
* [PTDX Sandwich v1.2] Changed the writing "FPS" into "fps".

September 18, 2025
* Added more dots palettes.
* Renamed GeneratePTDSPalette(s) as MakePTDSDotsPalette(s).
* Moved demos to an external archive (PTDS Experiments).
* [PTDX Sandwich v1.1] Changed color model of foreground to RGBWa for a better visual result.
* [PTDX Sandwich v1.1] Updated manual.

September 17, 2025
* Added PTDX Sandwich.
* [Zoomaniac v1.13] Made some little internal chanages.

September 15, 2025
* Removed a wrong piece of information from the documentation.

September 13, 2025
* Made $ff00ff the default color of illegal bytes (instead of the color of byte 0).
* Added the TRANSPARENCYCOLOR option to GeneratePTDSPalette.
* Added the ILLEGALBYTESCOLOR option to GeneratePTDSPalette for illegal bytes.
* Moved FILEPATH option ahead of ILLEGALBYTESCOLOR, TRANSPARENCYCOLOR and NONORMALIZATION in the GeneratePTDSPalette arguments template so that no keyword needs to be specified explicitly.
* Updated palettes (now the illegal colors are set to $ff00ff).

February 11, 2025
* Fixed documentation.
* [PVE v1.12] Made a couple of micro optimizations.
* [Zoomaniac v1.12] Made a micro optimization.

February 9, 2025
* Improved and extended documentation.

February 8, 2025
* Fixed and improved documentation.
* [Zoomaniac v1.11] Removed sprites-related code (as sprites eventually were not used).

February 7, 2025
* [PVE v1.11] Fixed resetting of BPLCON1 when staggered lines are turned off.
* [Zoomaniac v1.10] Fixed resetting of BPLCON1 when staggered lines are turned off.

February 6, 2025
* [PVE v1.10] Replaced PED81C logo with PTDS logo in splash screen.
* [Zoomaniac v1.9] Replaced "PED81C" with "PTDS" in splash screen.

February 3, 2025
* Added the RGBWa reference palette.
* Fixed and improved documentation.

February 2, 2025
* Fixed normalization in GeneratePTDSPalette.
* Made GeneratePTDSPalette produce a palette that reflects the actually perceived colors when the NONORMALIZATION switch is used.
* Removed 2-bitplane palettes and updated the other palettes.
* Improved documentation.

January 25, 2025
* Renamed from "PED81C" ("Pixel Elements Dots / 81 Colors") to "PDTS" ("Pixel Tetrads Dots / Speed") for the reasons explained in the documentation.
* Fixed and vastly improved documentation.
* Renamed GeneratePalette as GeneratePTDSPalette.
* Renamed GeneratePTDSPalette's FILE=F shell argument as FILEPATH=FP.
* Removed graphics derived from third-party works.
* [PVE v1.9] Touched up manual.
* [Zoomaniac v1.8] Touched up manual.

December 6, 2024
* [Zoomaniac v1.8] Made the solid scaling routine a bit faster.
* [Zoomaniac v1.8] Fixed crash on 68020-68040 when rendering took more than 1 frame.
* [Zoomaniac v1.8] Updated manual.

June 18, 2024
* Built demos against latest custom framework (which removes the useless and potentially counterproductive 1-second wait at startup).
* [PVE v1.9] Replaced "PED81C Voxel Engine" with "PVE" in version string.
* [PVE v1.9] Built against latest custom framework (which removes the useless and potentially counterproductive 1-second wait at startup).
* [Zoomaniac v1.7] Built against latest custom framework (which removes the useless and potentially counterproductive 1-second wait at startup).

June 14, 2024
* [PVE v1.8] Adapted to and built against latest custom framework.
* [Zoomaniac v1.6] Made raster copy from FAST RAM to CHIP RAM slightly faster on 68020 and 68030 (and possibly also on 68040).
* [Zoomaniac v1.6] Adapted to and built against latest custom framework.

April 30, 2024
* [Zoomaniac v1.5] Made raster copy from FAST RAM to CHIP RAM 1.37 rasterlines faster.
* [Zoomaniac v1.5] Removed some leftover instructions for the bottom of the Copperlist.
* [Zoomaniac v1.5] Fixed and updated manual.

April 29, 2024
* Improved _WAIT_SCREEN_BOTTOM[] in AMOS Professional source code example.
* Built demos against latest custom framework.
* Fixed and improved documentation.
* [PVE v1.7] Built against latest custom framework.
* [Zoomaniac v1.4] Built against latest custom framework.
* [Zoomaniac v1.4] Fixed a missing space in manual.

April 25, 2024
* Worked on AMOS Professional source code example: added a safety check; changed logic of _WAIT_SCREEN_BOTTOM[]; made various other minor changes.
* Removed stray file from archive.

April 24, 2024
* Worked on the AMOS Professional source code example: added multiple color models support; added main loop that allows to change picture, in order to show how to switch between AMOS and PED81C screens and how to change color model; refactored the code to make reuse easier.
* Removed the demos that simply showed static pictures.
* Built demos and GeneratePalette against latest custom framework.
* Touched up documentation.
* [PVE v1.6] Built against latest custom framework.
* [PVE v1.6] Touched up manual.
* [Zoomaniac v1.3] Adapted to and built against latest custom framework.
* [Zoomaniac v1.3] Touched up manual.

April 23, 2024
* [PVE v1.5] Worked on benchmark calculations: fixed off-by-one bug; removed 64 divisions; simplified code.
* [PVE v1.5] Adapted to and built against latest custom framework.

April 6, 2024
* Removed FFIS100 option from GeneratePalette.
* Added NONORMALIZATION option to GeneratePalette.
* Added 2-bitplane palettes to GeneratePalettes.
* Added more reference palettes.
* Fixed, updated and extended documentation.

April 2, 2024
* [Zoomaniac v1.2] Added horizontal flipping, vertical flipping, color-keying and zero-keying to the scaling routines.
* [Zoomaniac v1.2] Added effects that show the aforementioned features.
* [Zoomaniac v1.2] Changed video buffering method when two rasters can be allocated FAST RAM (this increases the performance on expanded machines).
* [Zoomaniac v1.2] Made effects start as soon as [SPACE] is pressed (instead of when it is released).
* [Zoomaniac v1.2] Made background of fps digits entirely black to make numbers more readable.
* [Zoomaniac v1.2] Made various internal changes.
* [Zoomaniac v1.2] Updated manual.

March 28, 2024
* [PVE v1.4] Made staggered lines toggle as soon as [F1] is pressed (instead of when it is released).
* [Zoomaniac v1.1] Turned the 68030 data cache burst on for slightly faster performance.
* [Zoomaniac v1.1] Made a couple of minor optimizations.
* [Zoomaniac v1.1] Added frames rendering limit toggle ([F3]).
* [Zoomaniac v1.1] Worked on fps indicator: added hundreds digit; made digits smaller; made digits auto-clearing, so that they read correctly also when they are not cleared before drawing.
* [Zoomaniac v1.1] Made staggered lines toggle as soon as [F1] is pressed (instead of when it is released).
* [Zoomaniac v1.1] Updated splash screen.
* [Zoomaniac v1.1] Redesigned the 'M' in the logo.
* [Zoomaniac v1.1] Updated and extended manual.

March 27, 2024
* Added Zoomaniac.
* [PVE v1.3] Made a couple of minor changes.
* [PVE v1.3] Updated manual.

January 1, 2024
* Rebuilt demos against latest custom framework.
* [PVE v1.2] Optimized slightly background rendering.
* [PVE v1.2] Corrected benchmark fps calculation (312 rasterlines were considered instead of 313).
* [PVE v1.2] Built against latest custom framework.
* [PVE v1.2] Updated, extended and fixed manual.

December 22, 2023
* [PVE v1.1] Reworked screen buffering, so that the raster data is more efficiently written to CHIP RAM when bitplanes DMA is inactive.
* [PVE v1.1] Improved 68030 caches handling.
* [PVE v1.1] Added 68040 and 68060 caches handling.
* [PVE v1.1] Added MMU handling to avoid that the MMU affects the speed negatively.
* [PVE v1.1] Optimized rendering core by making it write the dots sequentially.
* [PVE v1.1] Made a little 68060-specific code optimization.
* [PVE v1.1] Ensured 68060 susperscalar dispatch is enabled.
* [PVE v1.1] Added live-toggable staggered lines video filter, which helps see better colors on devices that do not support SHRES and reduces the jailbars effect on devices that support SHRES (to enable/disable: [F1]).
* [PVE v1.1] Made fps indicator live-togglable (to enable/disable: [F2]).
* [PVE v1.1] Made quitting from the voxel screen return to the splash screen.
* [PVE v1.1] Replaced mouse controls with keyboard controls.
* [PVE v1.1] Added benchmark function.
* [PVE v1.1] Added command line switches to control the CPU caches.
* [PVE v1.1] Fixed bug that caused a longword to be written to a random location when the fps indicator was on.
* [PVE v1.1] Fixed an innocuous initialization bug.
* [PVE v1.1] Made cleanup code more robust.
* [PVE v1.1] Updated, extended and fixed manual.
* Rebuilt demos against latest custom framework (which ensures that the system MMU setup does not interfere).
* Touched up documentation.

November 28, 2023
* Fixed some palette values in a table in the documentation.
* Added formulas for calculating DIWSTRT, DIWSTOP, DIWHIGH, DDFSTRT and DDFSTOP to documentation.
* Replaced fixed values with the aforementioned formulas in the AMOS Professional source code example.
* Added PVE.

August 2, 2023
* Fixed spelling of "arithmetically" in documentation.

June 26, 2023
* Added PERFORMANCE CONSIDERATIONS section to documentation.

June 23, 2023
* Changed contact email address.

June 21, 2023
* Fixed the CMYW values in a table in the documentation.
* Added AMOS Professional source code example.

June 19, 2023
* Fixed and improved documentation.

July 31, 2022
* Touched up documentation.

March 29, 2022
* Fixed and improved documentation.

March 5, 2022
* Added example registers settings to documentation.
* Made a few cosmetic changes.

March 3, 2022
* Improved and extended documentation.
* Added greyscale examples.
* Renamed documentation and palette files.

March 2, 2022 / B
* Fixed and improved documentation.

March 2, 2022 / A
* Fixed, improved and extended documentation.
* Changed GeneratePalette so that it uses the RGB value of byte 0 for the bytes that include the illegal bits pair %01.
* Updated the palettes of all the picture files according to change #2.

February 28, 2022
* First release.