Message #1366

From: Roice Nelson <>
Subject: Re: [MC4D] MS5D v0.1
Date: Thu, 27 Jan 2011 16:47:39 -0600

Very nice :)

My number one feature request is of course animation. I feel that will give
a huge benefit in understanding the puzzle.

The other main feedback I have for now is that twisting feels backwards.
When I click 3 stickers in succession, say A,B,C I would expect the end
result to be a 3-cycle of those stickers that went A->B->C->A (if I’m
clicking in a clockwise fashion, I’d like the stickers to rotate
clockwise). Instead, you’ve chosen to make it A<-B<-C<-A. I was curious
the reason for this.

Minor issues I ran into with my brief interaction:

I am finding the 4D shift-left rotations strangely unintuitive (they don’t
seem to act like MC4D), but I will have to think on why this is the case
more before I can give any useful feedback.

Awesome as usual Andrey! You’re a puzzle producing machine!

On Thu, Jan 27, 2011 at 3:10 PM, Andrey <> wrote:

> No macros, no animation, no recentering, log files not tested… only
> navigation in S4 and twists are ready.
> Simplex is rendered by sequence of 3 central projections:
> - stereographic projection to 4D
> - perspective projection of 4D to 3D (4D camera)
> - perspective projection of 3D to the screen. (3D camera)
> Navigation:
> Left button - rotation of 3D camera around the center
> Shift-Left button - rotation of 4D camera in X-W and Y-W directions
> Shift-Right button (Up/Down) - rotation of 4D camera in Z-W direction
> Right button (Up/Down) - slide of 5D camera in W direction. It is the only
> way to change center of the model view.
> Ctrl-Left button - Zoom in 3D (Up/Down) and in 4D (Left/Right)
> Twists:
> 3-click model is implemented: if you have cell ABCDE (corners are named)
> and click three corner stickers ("5C"), say, A,C,D, then cell will twist to
> the CBDAE orientation.
> If you click 4C stickers adjacent to the same corner, e.g. AB, AC, AE, then
> block centered in the vertex A will twist from BCDEF position to CEDBF.
> Right click in the sticker shows all stickers of the piece. Color filters
> not tested.
> I was lucky to solve puzzle 2/5 scrambled by one twist! But it was
> difficult :)
> Good luck!
> Andrey
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