Taking the fireball technique as an example, the essence is to make the fire element explode instantly in a specific area, which can also be regarded as a field spell, but this spell does not last, only for a moment.

From the perspective of practicality, it is naturally the easiest and most convenient to choose a spherical burst space.

If a mage is bored, he can also specially design a tetrahedral area explosion, but in this way, the difficulty of casting this spell will increase, and at the same time, this spell may not be called fireball, but should be called [Fire Tetrahedron]~

Looking at the essence through the phenomenon, the number of spells is endless, but the principle is really limited, just as countless lenses with different forms and functions can be designed according to the principle of refraction of light.

If the caster fails to see through this and indulges in all kinds of magical appearances, he may be a "spellcaster" for the rest of his life, not an arcane.

This is why Xia Duo thinks that people with modern education in his hometown are suitable to become mages, because even the most basic primary and kindergarten education is permeated by the cultivation of scientific literacy.

"Ask why in everything", the teaching of this sentence alone will make him useful for the rest of his life.

Although it only took Xia Duo thirteen years (Main Plane 3, Projection Plane 10) to become a veteran arcanist with light demeanor in Nessreel, he was only one step away from the top Grand Arcanist.

But he is not a little complacent, in addition to the self-cultivation of self-reflection from time to time, and the desire for higher achievements in the future, more importantly-

He knows that the little achievements he has made now are actually the light of education in his hometown.

If a senior arcanist in Nessera is allowed to receive a round of modern education in his hometown, then the achievements that the other party can achieve will definitely not be inferior to his current self.

It is precisely because there is a whole world as a foundation that Xia Duo dares to say anything like creating a magical civilization.

And now, in the design of the magic version of the CNC machine spell, he is still inspired by the civilization of his hometown.

To "carve" a large sculpture at once is essentially to retain the shape of the large sculpture in the material, and not to use all other parts.

In other words, a specific processing field (in this case, antipetrification – from stone to water) needs to be vacated to spread outwards with a sculptural form.

Similar to a four-dimensional laser, it directly cuts out a three-dimensional sculpture.

The realization process is not complicated, Xia Duo first used the miniature codex sculpture that has been polished for a long time and cannot be changed as a spell casting prop, projecting a convergence field of the form of the codex sculpture.

After that, it is reversed and turned into an open field where the sculptural form spreads outward.

The size of the middle vacancy is adjustable and is scaled in equal proportions.

Of course, it is also possible to directly design an open field where the sculpture form spreads outward, but this is much more complicated than projection, and even if it can be designed, the difficulty of its casting is likely to be so high that Xia Duo cannot cast it.

This is actually very similar to the process of writing a program before Xia Duo crosses over, when a certain function is needed, it is generally called from the function library, rather than writing it yourself in a daze. (Some special functions also need to be written by yourself and added to the library for easy call by yourself or others)

The miniature Codex sculpture that Xia Duo made before can be used as a callable function library in the spellcaster.

If you don't use this method, in the case of no super high carving experience and skills, you can only "write your own functions" and cast spells with high difficulty.

Now that all the ideas are clear, all that's left is spell design, spell testing, spell practice, and finally engineering practice.

……

For the next few days, Xia Duo maintained a state of semi-repairing the magic net and half-researching spells, and this state lasted until a new spell named [Large Stone Modeling Technique] was born.

This spell was not born from a chance accident, nor was it obtained from someone else, but Xia Duo created it little by little from scratch with theory guiding practice.

It was born like a mathematical problem, and after some painstaking calculations, the only solution was finally reached, and Xia Duo was full of confidence in it.

Of course, even so, the test link is still indispensable, the theory is the theory, even if it is consistent and correct, it still cannot be regarded as the final answer without testing.

After all, Xia Duo has only created this new spell, and has not yet cast it in its entirety even once!

……

Arcane Garden.

Xia Duo sent away the Pegasus Abel, who had been coming over to be curious about the microscopic, and found a vacant land by the river that was not planted, first pressed out a deep pit with a [square force field], and then burned the pit wall into glazed with a [sustained-release matrix furnace].

Such a square well with excellent waterproof performance is completed.

Xia Duo had made a similar pool when he first made paper on the main plane, only this time he made a much larger and deeper pool than that time.

It is almost made in accordance with the proportions of the finished sculpture of the Codex, covering an area of 6*6 square meters and 10 meters deep.

It took him a lot of time just to fill the pool with water, and then it was the transformation of the stone, such a large pool of water, if you don't want the transformed stone to have an obvious layered structure, you can only transform it all at once.

In order to transform so much water at once, the instantaneous power of the spell must be very high, and through calculation, Xia Duo finally decided to use the [Petrification Magic] of 8 rings to complete such a transformation.

There were no accidents in the casting process, in fact, Xia Duo completed the spell with the mentality of officially making a codex sculpture.

It's not just like thinking of it as a spell test.

With the completion of the basic stone, it is time for the [large-scale stone modeling] to exert its strength, and it depends on whether it is a mule or a horse.

Of course, Chado's confidence is very abundant.

Levitating a miniature Codex sculpture as a casting prop above the pool, Shado then began to cast spells as required by the elements required for the spell design.

That is, this spell was completely created by Xia Duo little by little, knowing the roots, if it was someone else's new spell, he wouldn't dare to try it in a place where there was no spell to calm the field!

As the source of the spell made of the strings of the magic web finally formed, the energy in the specific circuit began to flow.

At this time, the antipetrification field had not yet been formed, but it could already be projected from the source point of the spell, and in the process, Xia Duo made final fine-tuning to it to fit the size and orientation of the stone to the greatest extent.

Immediately afterwards, the anti-petrification field was formed, and in just a moment, the surface of the square well changed from blue-black stone to transparent water.

In the bright light environment of the Arcane Garden, Xia Duo could easily see the Codex sculpture standing upright in the square well through the body of water!