The pixel inspector now shows whether interior basins are Attractor or SuperAttractor, for Julia and Mandelbrot.
Rearranged the Formula button menus, replacing Integer Powers with Powers and Polynomials, Rational Polynomials, and Root Finding Methods.
Implemented support for formulas including c in ways other than just adding c.
Added Inverted Mandelbrot and Devanian C formulas in Powers and Polynomials.
Added Magnet 1, Magnet 2, TwoByThree 1, TwoByThree 2, ThreeByTwo 1, Cactus formulas in Rational Polynomials.
Added General Cubic Newton, General Quartic Newton and Quartic Newton 2 formulas in Root Finding Methods.
Added ZRootC formula in Trig and Log.
Fixed a bug where choosing a new formula did not reset the Low Bailout setting, which is necessary as it resets the Zoom.
Implemented patch rendering. Ctrl-dragging a rectangle in the image allows rendering or re-rendering an area with different settings.
The Julia exploring Precision can now be set negative, and the sensitivity no longer increases in Julia mode for negative zoom.
The Default Color Scheme control now shows a live preview, and the maximum value is increased to 21 to include presets for some Chaotic formulas that are not in the Default Color Scheme memory spots.
Sensitivity of the Julia panel C controls no longer increases with negative Zoom. The control range has been increased to work with maximum negative zoom.
In the PolyAmbi formula, added Mobius Wrap and Wrap Radius parameters for Mobius cylinder wrapping.
Fixed a bug in the Real Rat formula where some negative powers could cause floating point errors.
Added Nova Poly formula in the Integer Powers category.
Added Burning Mandala formula in the Real Powers category.
Added Root Fun formula in the Trig and Log category.
Added decimal places to the Initial Interval, Increment and Acceleration parameters in the Coupling Loops formula.
Fixed Wounded Cubic and Blaschke Triple Product formula critical point detection when using Abs modes.
Fixed a bug in numeric controls for formula parameters, where integer values allowed typing decimal places, although the actual values were rounded to the nearest integer.
Disabled Period testing for early bailout in Mandelbrots for Alternator and Coupling Loops formulas, as it could cause wrong results.
In the Help, added a Minibrot types topic in the Formula forays section.
Faster calculation for some Mandelbrot fractals with no lighting and In Set using Solid Color, if many pixels are In Set.
In the Julia panel, changed the default value of C real to 0.
Choosing any Chaotic formula now automatically changes to Julia mode and custom default coloring.
In the Formula panel, the Open Parameter File Using Formula dialog now has an option to Include Subdirectories.
Changed the Hypertile formula defaults from 2 3 6 to 2 4 5.
Improved sampling used for anti-aliasing, and increased maximum samples to 113.
Removed 97 sharper anti-aliasing option and added a Sharper Sampling button, that works with all anti-aliasing options.
Fixed a bug where renders taking less than a second did not update the Time in the status bar from the previous render.
Added Wounded Cubic formula in the Integer Powers category.
Added Real Expo formula in the Real Powers category.
Added Power Swap formula in the Hybrid category.
Fixed a bug in analysing critical points for Julia mode or explorer, which could result in Floating Point division by zero errors in rare circumstances.
Added Mean loglog option in the In Set color curve control.
Added 97 sharper option to the Anti-aliasing control. If the Render With Alpha Mask option is on then 97 samples is used instead.
Fixed bugs when importing Map files. The Gradient Category dialog would still import gradients if the Cancel button was clicked, and did not check for a blank category.
In the Help, added a Formula forays section with two topics on fractal types.
Fixed a bug where environment map files and preset files would not open if the extension was upper case.
Added Blaschke Triple Product formula in the Integer Powers category.
Added Crossbrots formula in the Hybrid category.
Added a Numerator Angle parameter to the Rational 2 formula.
Added a Function P parameter to the Zenex formula, with five choices about the A and B parameters.
Fixed a bug where opening a formula preset did not set the correct value for dropdown list parameters added later if the default is not the first item.
Added a parameter Gz^8 to the Zenex formula.
Fixed a bug in the Loxodrome Orbit Trap Shape that could cause a crash.
The Quick Mandelbrot option is now set on or off automatically when opening parameter files.
Fixed a bug where the Julia explorer could stop working with Fibers enabled in some formulas.
Presets now allow renaming categories directly if the category is empty or no presets are selected.
Fixed a bug in renaming and saving presets where the existing presets were not shown initially.
Added Zenex formula in the Trig and Log category.
Added Square options to the Wave parameters in the Spirograph formula.
Added Arc, Loxodrome and Sierp triangle Orbit Trap Shapes.
Added Warp parameters to the Hypertile formula.
Fixed a bug in v4.200 where parameter files with the Devanian formula were saved with incorrect formula ID and would not open correctly.
Command line rendering now allows setting anti-aliasing to the top two options, and defaults to Adaptive 49.
Ctrl-clicking the Copy Parameters to Clipboard button copies the Formula info in plain text.
The gradient strip indicates the color that the mouse points to in the preview, when applicable.
Added A Angle and B Angle parameters to the Devanian formula.
Added Spiral balls Orbit Trap Shape.
Fixed possible floating point overflow errors in Part calculation in some Orbit Trap shapes.
Fixed a bug where in some circumstances some pixels that are Exterior without lighting become In Set in the Preview with lighting enabled.
The Save/Rename Preset dialog now shows a list of existing preset names in the current category.
Right-clicking in the Preview now shows a Render Sample popup with a 56x56 anti-aliased render.
Changed how Ctrl-dragging in the Preview works. Now the start point is the center and dragging draws a rectangle with the same aspect ratio as the preview.
Fixed a bug where pressing Ctrl after the mouse button for zooming would draw solid yellow rectangles that didn't erase until the mouse button was released.
Fixed a bug where Ctrl-dragging while the preview was in progress had erratic rectangle drawing.
Increased Low Bailout limits to between -8 and 40.
Fixed a bug where opening a file from a later version with extra formula parameters caused a crash.
Added Bipyramid in Exterior texture patterns and Interior and Orbit Trap texture Pattern 1.
Increased range of Power to -20 to 20 in Exterior, Interior and Orbit Trap textures.
Fixed a bug since v3.7 where saving a color preset with orbit traps caused an error.
Added an option in the Render Options panel to Render Depth Map, with Normalize and Invert options.
The Fast Mandelbrot Preview option now includes Mean |z| coloring and uses full Fibers calculations instead of default options.
Added a button in the Formula panel to Open Parameter Files Using Formula.
Added Power formula in Integer Powers category, optimized for each power.
Added a Hybrid category to the Formula menu, for formulas that depend on iteration count.
Added Alternator and Coupling Loops formulas in the Hybrid category.
Added Alkaleid formula in the Chaotic category.
Added Alternate Angles parameter to Kaleidor formula.
Fixed a bug where changing the formula did not reset the Max Iterations control's default value when it is the usual.
Fixed a bug with Lissajous, Spirograph and Spirotator formulas where increasing Max Iterations in Mandelbrot mode caused a crash.
Added a Fog panel with controls for depth fog effects.
Fixed a bug where Reset Lighting did not override the In Set and Orbit Trap panel Lock options.
Rendering is now faster for unlit Mandelbrot mode when Distance calculations are not needed.