How does Maya make half a watermelon?

Maya plans to make watermelons with art and science.

Create a sphere and add gradient art and science. The parameters of arts and sciences are shown in the figure.

Select watermelon, switch to dynamic and effect menu, and make rolling. The parameters are shown in the figure.

Select UV inside watermelon, normalize and connect gradient texture. The parameters are shown in the figure.

Here are watermelon seeds, as shown in the picture.

One advantage of using maya's procedural textures completely is that you don't need external maps to get points.