New Year's Eve Fireworks Animation

Particle text will have to wait; I'm going to brute force a '2', a '0', a '1' and a '!', which fortunately isn't so very complicated! 8-P
(as per usual, click in the black box!)

Octahedron to Cube/Octasphere...

The goal is to build a 'world object', which could be a planet, moon or asteroid depending on size and need. I'll use a '2d' context, so no textures or lighting, but I can get the thing to turn. I will leave the vertices alone for that, just keep track of angles and do the rotation on the projection. As for what I'm projecting, I'm going to create a cube sphere by way of an octahedron. I will generate the octahedron by way of a square subdivided into four quads which in turn are subdivided and folded into a center and corner triangle. The points xyz are i,j and the absolute new york 'street' distance, so that the corners fold away behind the center to the far vertex of my octahedron, now complete with four duplicate far vertex corners. (click in the black box to turn)

Square to Octahedron...

The goal is to build a 'world object', which could be a planet, moon or asteroid depending on size and need. I'll use a '2d' context, so no textures or lighting, but I can get the thing to turn. I will leave the vertices alone for that, just keep track of angles and do the rotation on the projection. As for what I'm projecting, I'm going to create a cube sphere by way of an octahedron. I will generate the octahedron by way of a square subdivided into four quads which in turn are subdivided and folded into a center and corner triangle. The points xyz are i,j and the absolute new york 'street' distance, so that the corners fold away behind the center to the far vertex of my octahedron.
(click in the black box to turn)

World Object- Whoops! 8-P

The goal is to build a 'world object', which could be a planet, moon or asteroid depending on size and need. I'll use a '2d' context, so no textures or lighting, but I can get the thing to turn. I will leave the vertices alone for that, just keep track of angles and do the rotation on the projection. As for what I'm projecting, I'm going to create a cube sphere by first subdividing the six faces into forty-eight triangles and 'spherifying' the vertices so that they all lie on the surface of a sphere. This is initally a fairly decent spherical polyhedron and a poor man's icosahedron, even... 8-P (Click to turn the world object)
(I'm doing something hilariously wrong, so it's time to rethink)

Christmas Trees!

I want to draw and decorate a Christmas tree with blinking lights on a string. This is the best I could do by Christmas Night... Merry Christmas!

World Object, Also...

The goal is to build a 'world object', which could be a planet, moon or asteroid depending on size and need. I'll use a '2d' context, so no textures or lighting, but I can get the thing to turn. I will leave the vertices alone for that, just keep track of angles and do the rotation on the projection. As for what I'm projecting, I'm going to create a cube sphere by first subdividing the six faces into forty-eight triangles and 'spherifying' the vertices so that they all lie on the surface of a sphere. This is initally a fairly decent spherical polyhedron and a poor man's icosahedron, even... 8-P (click near the pts to turn)

World Object!

The goal is to build a 'world object', which could be a planet, moon or asteroid depending on size and need. I'll use a '2d' context, so no textures or lighting, but I can get the thing to turn. I will leave the vertices alone for that, just keep track of angles and do the rotation on the projection. As for what I'm projecting, I'm going to create a cube sphere by first subdividing the six faces into forty-eight triangles and 'spherifying' the vertices so that they all lie on the surface of a sphere. This is initally a fairly decent spherical polyhedron and a poor man's icosahedron, even... 8-P (click to turn)