I have been making a pattern to fold into cube. Each face is 5x5 squares. Add a third dimension and you have a 5x5x5 cube. Think of this as a big cube made of 125 little cubes. Each of these 125 cubes is a different color. Since in your imagination (which is infinite the color mode of black to white in each of the three dimensions captures all possible colors.
The computer can only (if it can) deal with 255^3 colors because of the way light is designed. So the maximum number of colors is 16,777,216 colors. Your image depend on how many intervals you allowed for each dimension so there that number cubed possible colors using your palette. Maybe this is clearer. Linda -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of bill lam Sent: Sunday, June 28, 2015 2:31 AM To: [email protected] Subject: Re: [Jprogramming] Trouble making patter for a color cube You can press F10 to stop timer and then rotate the cube manually using key x y z, so that hypothetically you can control the sequence. Notice the angle displayed. I am not sure what did you mean by 125 cubes. or infinite cubes, the opengl model only need to specify the vertices of each 6 squares and the color of these 24 vertices. Color of pixels on surface are done by interpolation inside hardware rendering pipeline. You can press a or s to zoom in/out the cube. Вс, 28 июн 2015, Linda Alvord написал(а): > Your shader looks good! Maybe if you started the sequence that Raul suggested > you could get a better look athe the "black" corner. Iand the white one) The > idea of No light to blue, red and green light helps the model helps to show > that when they are all on in the diagonally opposite corner there is full > light. > > In the "little model" with the pattern, if you focus on the fact that it > "contains 125 cubes of solid color, your infinite model "contains" 16,777,216 > little cubes - all different. > > Linda > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of bill > lam > Sent: Sunday, June 28, 2015 12:00 AM > To: [email protected] > Subject: Re: [Jprogramming] Trouble making patter for a color cube > > Thanks. qt demo updated. > > Сб, 27 июн 2015, Raul Miller написал(а): > > If we are talking about the shader demo in the qt demos, on my > > screen, the color black is adjacent to white, blue and cyan. > > > > Instead, I believe it should be: > > > > colorData=: 1&fc , C=: 0 1 2 2 1 3&{"2 ] 6 4 3$ , CC=:0&".@(-.&',') > > ;._2 [ 0 : 0 > > 0 0 1 > > 1 0 1 > > 0 1 1 > > 1 1 1 > > 1 0 1 > > 1 0 0 > > 1 1 1 > > 1 1 0 > > 1 0 0 > > 0 0 0 > > 1 1 0 > > 0 1 0 > > 0 0 0 > > 0 0 1 > > 0 1 0 > > 0 1 1 > > 0 0 0 > > 1 0 0 > > 0 0 1 > > 1 0 1 > > 0 1 1 > > 1 1 1 > > 0 1 0 > > 1 1 0 > > ) > > > > Or, more compactly: > > > > colorData=: 1&fc , #: 0&".;._2]0 :0 > > 1 5 3 3 5 7 > > 5 4 7 7 4 6 > > 4 0 6 6 0 2 > > 0 1 2 2 1 3 > > 0 4 1 1 4 5 > > 3 7 2 2 7 6 > > ) > > > > Note also that vertexData could be specified similarly. For example: > > > > vertexData=: 1&fc , _1+2* #: 0&".;._2]0 :0 > > 1 5 3 3 5 7 > > 5 4 7 7 4 6 > > 4 0 6 6 0 2 > > 0 1 2 2 1 3 > > 0 4 1 1 4 5 > > 3 7 2 2 7 6 > > ) > > > > Thanks, > > > > -- > > Raul > > > > On Sat, Jun 27, 2015 at 9:52 PM, bill lam <[email protected]> wrote: > > > I made an attemp to implement color scheme proposed by Raul and > > > Mike in the opengl shader demo of j804 beta. Please update qt > > > addon to check if the result agrees with viewmat, and fix shader > > > if necessary. F10 is used to start/stop timer. > > > > > > -- > > > regards, > > > ==================================================== > > > GPG key 1024D/4434BAB3 2008-08-24 > > > gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3 gpg > > > --keyserver subkeys.pgp.net --armor --export 4434BAB3 > > > ------------------------------------------------------------------ > > > -- > > > -- For information about J forums see > > > http://www.jsoftware.com/forums.htm > > -------------------------------------------------------------------- > > -- For information about J forums see > > http://www.jsoftware.com/forums.htm > > -- > regards, > ==================================================== > GPG key 1024D/4434BAB3 2008-08-24 > gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3 gpg --keyserver > subkeys.pgp.net --armor --export 4434BAB3 > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm -- regards, ==================================================== GPG key 1024D/4434BAB3 2008-08-24 gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3 gpg --keyserver subkeys.pgp.net --armor --export 4434BAB3 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
