Monday, February 16, 2026

Write something, half of February is gone!

I had the peach thing all those years ago, maybe I should have stuck with that?

Sunday, February 15, 2026

Subdivide that tetrahedron, each face six ways to make poor Vinnies twenty four sider. 

Pick some points

28 March 2025- Draw Map

Pick three points to make a triangle

Oops!

Friday, February 13, 2026

Friday the 13th passed uneventfully.

I can push the center of the initial triangle out along the cross product to find the center of my world.

Thursday, February 12, 2026

Build a triangle mesh from three user picked points

28 March 2025- Draw Map

Pick three points to make a triangle

Oops!

Wednesday, February 11, 2026

Build a 3D triangle surface mesh with vertices at least 10 px/1K km apart. We push out the edges at random from an initial triangle of three points at radius distance from the center of my hypothetical world, based on random size. detect concavities in the border edges of my world polyhedron (how?) and close them off with a bridging triangle and edge. Remove closed edges from the border and add new ones as we go along. Edges are two endpoints and the third vertex of a triangle with one or two closed edges and two or one new open edge. Edges are defined by endpoints, a third vertex of the triangle the edge belongs to. The midpoint and the vector through the midpoint from the third vertex are easy to derive. Or, edges are derived from adjacent vertices in the list of border points, checking for concavities to close off as we go. We get the vector from the midpoint of the edge by calculating the cross product of the two vectors from the center to the center to each endpoint. If this new point is too close to an existing border point, then we have detected a concavity and should close it off.

Saturday, February 7, 2026

Derive a fourth coordinate from three points of user defined triangle

28 March 2025- Draw Map

Pick three points to make a triangle

Oops!

Fill up a map rectangle with triangle fans of land and sea.

Find the 10 px quads partially within the circle

28 March 2025- Draw Map

Pick a point and generate the planet, mass first.

Oops!

Thursday, February 5, 2026

 So, haven't written...

Been a long week already, gotta work Saturday 

Tuesday, February 3, 2026

Finally

Back to finding quads within a circle to make a stupid polyhedron. Project a grid of quads 10 px or a thousand kilometers on a side. The edge quads are bigger, taller. The quads are subdivided into two triangles along and edge between the nearest corners.

Saturday, January 31, 2026

stuff

28 March 2025- Draw Map

Pick a point and generate the planet, mass first.

Oops!

Friday, January 30, 2026

There once was a silly old fool...

Who made world maps, of course.

Thursday, January 29, 2026

Mass derived world generation

28 March 2025- Draw Map

Pick a point and generate the planet, mass first.

Oops!

Get something done tonight!

Go at the world building in a different way, starting with mass, deriving planetary radius from mass and density.

Tuesday, January 27, 2026

Tetra to poor Vinnies 24-sided polyhedron

28 March 2025- Draw Map

Pick three points to make a triangle

Oops!

I need to write again, and specifically work up settings and scenarios. I can do my version of Traveller with percentiles.

Saturday, January 24, 2026

I'n going to input some coordinates with which to build a world based on an initial triangle from the three vertices the user selects.

I can modify this triangle into a pentagon, and the pentagon into a fan of five triangles, and then build out a ring of triangles in a strip more or less around the equator, then another triangle fan around the other pole of the globe.

I have a page which takes three points from me and draws a triangle. When you click again it subdivides the triangle into a pentagon.

Make a tetrahedron from a triangle

28 March 2025- Draw Map

Pick three points to make a triangle

Oops!

 They murdered a man on the streets of Minneapolis today. May they rot in hell...

strips of diamonds?

28 March 2025- Draw Map

Make rows of triangle strips.

Oops!

Friday, January 23, 2026

Radius

28 March 2025- Draw Map

Change to an 'exploded' icosahedron.

Oops!

strip it down

28 March 2025- Draw Map

Do something...

Oops!

Thursday, January 22, 2026

Wednesday, January 21, 2026

The horde emptying the city?
Maps. Need to make some maps...

The simplest thing is to build a icosahedron and subdivide each of twenty triangles.

Or build out around points on a globe mapped to a 2D version of the globe  
Russia murdered some pensioner's in one air attack; they were heading to get their pensions.

Saturday, January 17, 2026

Some code

28 March 2025- Draw Map

Make rows of triangle strips.

Oops!

Monday, January 12, 2026

Fill a canvas with light brown to match the blog background and a 52 by 52 grid of 10 pixel quads.

Use displacement to move the points in the grid around, then subdivide quads into triangle pairs based on closest diagonal corners.
A Carrington Event followed by an AI takeover?

Sunday, January 11, 2026

Friday, January 9, 2026

Thursday, January 8, 2026

Rows of quads

28 March 2025- Draw Map

Make rows of triangle strips.

Oops!