Using controllers without head VR. Idea seen here:
https://twitter.com/seflless/status/1495485131494154245

Consider adding embedded help system, so that programmers can use the console to quickly get info about a Suica command. For example, tube.help may contain the constructor syntax of class tube.

Easier setting of dotted lines (incl. wireframed objects)

Clicking on objects do not change their color.

When example events-find-position.html is run in fullscreen mode, the mouse position is not calculated correcty.

Redesign onTime to match the other events (this will free the name onTime)

When an object is used as a point, its center is used. So, it could be possible to make a segment between two circles, eliminating the need to specify their centers.

Cubes do not react when they go under the mouse pointer

Consider replacing the use of Suica.current with suica, which is the lastest Suica instance too.

The user guide is too big. Split its sections into individual files.

The labels of axis should be reddish, not black. See example:
https://boytchev.github.io/suica/examples/spin-orientation.html

Importing GLTF models, exporting scenes or part of scenes to GLTF

A possibility to define custom shape, for example, by a sequence of points, or by Canvas2D shape, etc.

Almost all examples with are not quite smooth when run on a very old laptop. Every second or two the image jumps to the left and returns back quickly.

Defining curves and surfaces via control points.

Easy definition of rotational solids

Support various orientations of the coordinate system: at least Y-up and Z-up

The snapshot does not correspond to the output. See example:
https://boytchev.github.io/suica/examples/polygon.html

https://boytchev.github.io/suica/examples/drawing-transparent.html

The function random with parameter a 3D object could return a random point inside the object.

Proposal: a global variable its equal to the latest created Suica object. This will make it possible to set custom properties of objects without using style and without giving a name.

With name:

a = cube( );
a.color = 'linen';

With style:

cube( ).style({color: 'linen'});

The new proposed its:

cube( );
its.color = 'linen';

Accessing point's coordinates as variables called x, y and z, in addition to the old way as array indices 0, 1 and 2.

Static initialization blocks are not supported in Safari

• Specification: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes/Class_static_initialization_blocks
• Error: https://twitter.com/georgiNikoloff/status/1509465162079948800

https://boytchev.github.io/suica/examples/dynamic-drawing.html

Drawings have fill and stroke, so fillAndStroke might be unnecessary. However, currently both fill and stroke initiate a new path. If they can reuse the path, they can set a flag, so the path is created only when a path-modification command is issues, like moveTo, lineTo and curveTo.

Allow lineTo to have several points and to draw complex line. So:

lineTo( 1, 2, 3, 4, 5, 6 );

would be equivalent to:

lineTo( 1, 2 );
lineTo( 3, 4 );
lineTo( 5, 6 );

and

<lineTo point="1, 2, 3, 4, 5, 6">

would be equivalent to:

<lineTo point="1, 2">
<lineTo point="3, 4">
<lineTo point="5, 6">

Example:

This is equivalent to:

a = circle( [40,0,10], 15, 'blue' );
b = a.clone;
b.center = [10,10,2];

VR mode for advance glasses (e.g. Oculus Quest 2), for simple VR glasses (that use smartphone split screen) and for anaglyph glasses.

Easier way to activate Suica in full screen mode or full window mode

Possibility to construct objects with CSG

Drawing commands (moveTo, lineTo, curveTo, arc) can be reused to define paths for extruded 3D objects. Internally they will have different implementation, but this different will be hidden from the user.

Consider this info:

• https://javascript.info/constructor-new#constructor-mode-test-new-target
• https://javascript.info/constructor-new#return-from-constructors

It is possible to make classes that act like functions, e.g. the same code will handle a = new cube(...) and a=cube(...)

Cloning default points makes them square. See example:
https://boytchev.github.io/suica/examples/clone.html

Check and fix objects at different coordinate system orientations. Cuboids might be OK, but cylinders are not.

Some drawing tags like moveTo and lineTo have parameter center. The name point is more appropriate.

Objects may have onUpdate callback activated every frame. It may implement object-specific behaviour (e.g. animation).

Some attribute parsers may make the code simpler and easier to understand. For example, parser of exclusive boolean values (see example) or parsers of array of points.

Example of exclusive attributes:
<spline ... closed>
<spline ... closed="true">
<spline ... closed="1">
<spline ... closed="yes">
<spline ... open>
<spline ... open="true">
<spline ... open="1">
<spline ... open="yes">

3D text (some default font as well as possibility to change it)

Clicking on pawn has no effect

Hovering the mouse over the segments has no effect.

https://boytchev.github.io/suica/examples/drawing-opaque.html

... this would require regeneration of tube's geometry.

A feature to create custom 3D objects extruded from 2D shapes.

When Google Fonts are used, the orientation looks fine; when they are not used - it is broken.

When the commented line is commented, the demo( ) does not rotate the coordinate system as expected. When it is uncommented, demo( ) works fine.

Easier integration with Moodle