The jit.gl.sketch object requires one argument: the name of a drawing context. A named drawing context is a named instance of a jit.window, jit.pwindow, or jit.matrix object that has an instance of the jit.gl.render object associated with it. This value may also be set via the OB3D drawto attribute.

So I loaded up the jit.gl.sketch .help patch and added a jit.matrix and a jit.pwindow both named the same as the jit.gl.sketch argument. I can draw into the supplied jit.window totally fine but nothing shows up in the pwindow or the jit.matrix i created. I also tried changing the names of my pwindow and jit.matrix and using the drawto message sent to jit.gl.sketch and jit.gl.render with no success.

Any idea what I’m doing wrong?

j

On Nov 5, 2007, at 5:54 AM, Solomon Bothwell wrote:

>
> Hi,
> I just started my first ever jitter project and I managed to run
> into trouble pretty quickly. (I think) I need to draw the contents
> of jit.gl.sketch into a jit.matrix so I can do further jitter
> processing such as jit.dimmap and jit.glue. In the jit.gl.sketch
> help file it says:
>
> The jit.gl.sketch object requires one argument: the name of a
> drawing context. A named drawing context is a named instance of a
> jit.window, jit.pwindow, or jit.matrix object that has an instance
> of the jit.gl.render object associated with it. This value may also
> be set via the OB3D drawto attribute.
>
> So I loaded up the jit.gl.sketch .help patch and added a jit.matrix
> and a jit.pwindow both named the same as the jit.gl.sketch argument.
> I can draw into the supplied jit.window totally fine but nothing
> shows up in the pwindow or the jit.matrix i created. I also tried
> changing the names of my pwindow and jit.matrix and using the drawto
> message sent to jit.gl.sketch and jit.gl.render with no success.
>
> Any idea what I’m doing wrong?
>

I meant this is the first somewhat difficult jitter task I am attempting. I have been through all the tutorials and have made some simpler patches in the past.

On Nov 5, 2007, at 10:03 AM, Solomon Bothwell wrote:

>
> Well..
> Step two involved figuring out how to do some things which I imagine
> would require openGL. I need to draw lines in 3d space which fade
> from tail to head as they get longer.
>
> I meant this is the first somewhat difficult jitter task I am
> attempting. I have been through all the tutorials and have made some
> simpler patches in the past.
>

wes

On 11/5/07, joshua goldberg wrote:
> try using the @capture [texturename] attribute with jit.gl.sketch.
>
> On Nov 5, 2007, at 10:03 AM, Solomon Bothwell wrote:
>
> >
> > Well..
> > Step two involved figuring out how to do some things which I imagine
> > would require openGL. I need to draw lines in 3d space which fade
> > from tail to head as they get longer.
> >
> > I meant this is the first somewhat difficult jitter task I am
> > attempting. I have been through all the tutorials and have made some
> > simpler patches in the past.
> >
>
>

In the gl.render help file I can see a very clear example of how to write the contents of gl.render into a jit.matrix. Why doesn’t this work if gl.render is rendering gl.sketch data?

I know these problems are entirely based in my ignorance of the material but I find it very difficult to understand rendering and the documentation for jitter doesn’t seem to cover everything. Its funny because I love the msp and max documentation, its the best docs I’ve ever seen for any application and I often recommend non-max users to read the MSP docs when they want to understand how basic synthesis techniques work.

So could you explain why the grey boxed area of this patcher does not work?

#P window setfont “Sans Serif” 9.;
#P window linecount 1;
#P message 19 513 59 196617 drawto foo;
#P newex 143 491 135 196617 jit.matrix foo @dim 100 75;
#P window setfont “Sans Serif” 18.;
#P comment 16 10 110 196626 jit.gl.sketch;
#P window setfont “Sans Serif” 9.;
#P comment 16 35 85 196617 GL parallel to lcd;
#P user panel 11 5 400 50;
#X brgb 255 255 255;
#X frgb 0 0 0;
#X border 0;
#X rounded 0;
#X shadow 0;
#X done;
#P message 647 701 35 196617 jit.lcd;
#P message 583 701 63 196617 jit.gl.text3d;
#P message 519 701 63 196617 jit.gl.text2d;
#P message 455 701 63 196617 jit.gl.render;
#P message 399 701 55 196617 jit.gl.plato;
#P message 340 701 58 196617 jit.gl.nurbs;
#P message 280 701 59 196617 jit.gl.model;
#P message 218 701 61 196617 jit.gl.handle;
#P message 142 701 75 196617 jit.gl.gridshape;
#P hidden newex 13 747 104 196617 bgcolor 255 230 230;
#P comment 142 687 48 196617 see also:;
#P hidden newex 582 723 64 196617 prepend help;
#P hidden newex 582 744 45 196617 pcontrol;
#P hidden newex 13 726 103 196617 jit.obref jit.gl.sketch;
#P button 13 701 15 0;
#P comment 29 703 112 196617 • view html reference.;
#P newex 164 369 89 196617 route attributes;
#P newex 164 389 50 196617 iter;
#P message 739 540 75 196617 getattributes;
#P window linecount 9;
#P comment 739 428 185 196617 many attributes like color , line_width , rotate , scale , etc. are not drawing commands , but instead global values which may affect the entire command list. use the gl command equivalents when a drawing command is what you’re really looking for. if you can’t tell which is an attribute , try clicking “getattributes” below.;
#P window setfont “Sans Serif” 18.;
#P window linecount 1;
#P comment 740 399 162 196626 ob3d attributes;
#P window setfont “Sans Serif” 9.;
#P flonum 77 268 35 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P message 77 287 51 196617 radius $1;
#P newex 77 306 78 196617 jit.gl.handle foo;
#P toggle 661 623 15 0;
#P message 661 646 80 196617 blend_enable $1;
#P message 256 165 65 196617 line 0 0 -0.1;
#P message 256 147 65 196617 line 0 -0.1 0;
#P message 256 129 65 196617 line -0.1 0 0;
#P message 292 454 105 196617 shapeprim quad_Strip;
#P toggle 206 427 15 0;
#P message 206 450 70 196617 displaylist $1;
#P window setfont “Sans Serif” 18.;
#P comment 503 111 162 196626 simple commands;
#P comment 503 261 162 196626 shape commands;
#P comment 502 401 162 196626 shape attributes;
#P window setfont “Sans Serif” 9.;
#P window linecount 4;
#P comment 16 68 174 196617 jit.gl.sketch records a list of 3-D drawing commands. these commands range from simple turtle graphics to the majority of the OpenGL API;
#P window setfont “Sans Serif” 18.;
#P window linecount 1;
#N vpatcher 213 499 658 688;
#P origin 60 40;
#P window setfont “Sans Serif” 9.;
#P hidden newex 234 136 104 196617 bgcolor 255 230 230;
#P window setfont “Sans Serif” 18.;
#P comment 220 25 189 196626 cmdlist commands;
#P window setfont “Sans Serif” 9.;
#P message 65 29 32 196617 reset;
#P comment 220 54 194 196617 cmd_delete ; cmd_enable ; cmd_insert ; cmd_replace ; getcmdlist ; reset ;;
#P toggle 95 101 15 0;
#P message 95 119 109 196617 cmd_enable glcolor $1;
#P toggle 8 101 15 0;
#P message 77 65 93 196617 cmd_delete glcolor;
#P newex 8 142 51 196617 s sketchy;
#P message 8 83 169 196617 cmd_replace 0 moveto 0.2 0.6 -0.7;
#P message 8 119 84 196617 cmd_enable 0 $1;
#P message 8 65 67 196617 cmd_delete 0;
#P message 8 47 140 196617 cmd_insert 0 glcolor 1 0 0 1;
#P message 8 29 55 196617 getcmdlist;
#P connect 7 0 3 0;
#P hidden connect 11 0 5 0;
#P hidden connect 0 0 5 0;
#P hidden connect 1 0 5 0;
#P hidden connect 2 0 5 0;
#P hidden connect 3 0 5 0;
#P hidden connect 4 0 5 0;
#P hidden connect 6 0 5 0;
#P hidden connect 8 0 5 0;
#P connect 9 0 8 0;
#P pop;
#P newobj 502 472 194 196626 p cmdlist_commands;
#P window setfont “Sans Serif” 9.;
#P message 378 435 78 196617 shapeprim lines;
#P message 292 435 84 196617 shapeprim points;
#P message 363 417 90 196617 shapeslice 100 50;
#P message 292 417 69 196617 shapeslice 10;
#P message 406 399 93 196617 shapeorient 0 90 0;
#P message 292 399 111 196617 shapeorient 25 35 180;
#P window linecount 3;
#P comment 502 430 174 196617 shapeorient ; shapeslice ; shapeprim ;;
#P window setfont “Sans Serif” 18.;
#P window linecount 1;
#N vpatcher 109 465 889 729;
#P origin 49 40;
#P window setfont “Sans Serif” 9.;
#P hidden newex 12 210 104 196617 bgcolor 255 230 230;
#P newex 578 117 156 196617 jit.gl.gridshape nowhere @name squeamish @shape torus;
#P message 579 154 155 196617 glcolor 1 0 0 , glscale 0.2 0.2 0.2 , drawobject squeamish 1 , glrotate 90 0 1 0 , glcolor 0 1 0 , drawobject squeamish 1;
#P newex 466 65 84 196617 prepend shape;
#P user umenu 466 42 85 196647 1 64 58 1;
#X add sphere;
#X add cylinder;
#X add opencylinder;
#X add torus;
#X add circle;
#X add cube;
#X add opencube;
#X add plane;
#P newex 466 164 82 196617 jit.matrix blotto;
#P newex 466 88 255 196617 jit.gl.gridshape nowhere @shape cube @matrixoutput 1;
#P window setfont “Sans Serif” 18.;
#P comment 53 18 162 196626 object commands;
#P button 10 120 15 0;
#P window setfont “Sans Serif” 9.;
#P newex 10 153 127 196617 jit.noise 12 float32 10 10 @out_name blitto;
#P message 190 152 132 196617 drawmatrix blitto tri_strip;
#P newex 190 228 51 196617 s sketchy;
#P comment 54 47 402 196617 drawobject ; drawmatrix
; dimorient <0/1> (affects drawmatrix command. initial state is 0);
#P message 203 192 373 196617 reset , drawmatrix blotto line_strip , dimorient 1 , drawmatrix blotto line_strip;
#P button 410 110 15 0;
#P comment 177 86 185 196617 texflag: 0=use , 1=ignore , 2=auto ; normalflag: 0=use , 1=ignore , 2=auto ; colorflag: 0=use , 1=ignore ; edgeflag: 0=use , 1=ignore;
#P connect 7 0 6 0;
#P fasten 7 0 5 0 15 143 195 143;
#P fasten 13 0 4 0 584 223 195 223;
#P fasten 2 0 4 0 208 221 195 221;
#P connect 5 0 4 0;
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#P fasten 11 1 12 0 546 62 471 62;
#P fasten 1 0 9 0 415 144 461 144 461 85 471 85;
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#P connect 9 0 10 0;
#P pop;
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#P window setfont “Sans Serif” 9.;
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#P window setfont “Sans Serif” 18.;
#N vpatcher 341 288 679 515;
#P origin 49 40;
#P window setfont “Sans Serif” 9.;
#P hidden newex 167 139 104 196617 bgcolor 255 230 230;
#P message 246 82 72 196617 texture movie;
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#P flonum 205 25 35 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P newex 16 139 144 196617 prepend texture movie;
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#P message 79 45 28 196617 read;
#P message 149 45 27 196617 stop;
#P message 115 45 31 196617 start;
#P toggle 16 24 15 0;
#P newex 16 44 55 196617 metro 20;
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#P newex 246 104 51 196617 s sketchy;
#P connect 4 0 3 0;
#P fasten 11 0 2 0 210 71 21 71;
#P fasten 5 0 2 0 120 71 21 71;
#P fasten 6 0 2 0 154 71 21 71;
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#P fasten 3 0 2 0 21 71 21 71;
#P connect 2 0 8 0;
#P fasten 8 0 9 0 21 130 21 130;
#P connect 9 0 12 0;
#P connect 10 0 11 0;
#P connect 13 0 0 0;
#P pop;
#P newobj 502 572 155 196626 p movie_texture;
#P user jit.fpsgui 49 391 60 196626 0;
#P window setfont “Sans Serif” 9.;
#P message 344 363 64 196617 cube 0.2 0.6;
#P message 340 381 82 196617 cube 0.3 0.4 0.5;
#P message 363 345 98 196617 torus 0.4 0.2 0 180;
#P message 374 273 121 196617 framecircle 0.3 140 270;
#P window setfont “Sans Serif” 18.;
#N vpatcher 332 90 1085 787;
#P origin 49 39;
#P window setfont “Sans Serif” 9.;
#P hidden newex 354 659 104 196617 bgcolor 255 230 230;
#P message 542 29 28 196617 read;
#P message 618 105 104 196617 gldisable depth_test , gldrawpixels xfer , glenable depth_test;
#P button 523 29 15 0;
#P newex 523 50 91 196617 jit.qt.movie 80 60;
#P message 619 159 85 196617 glreadpixels xfer;
#P button 633 48 15 0;
#P user jit.pwindow 522 105 82 62 0 1 0 0 1 0;
#P newex 523 75 138 196617 jit.matrix xfer 4 char 80 60;
#P window setfont “Sans Serif” 18.;
#P comment 61 602 218 196626 glu wrapper;
#P comment 380 193 103 196626 gl wrapper;
#P window setfont “Sans Serif” 9.;
#P comment 61 629 218 196617 glulookat ; gluortho2d ; gluperspective ;;
#N vpatcher 318 48 1063 814;
#P origin 0 30;
#P window setfont “Sans Serif” 18.;
#P comment 581 425 137 196626 texgen mode;
#P window setfont “Sans Serif” 9.;
#P comment 581 453 119 196617 object_linear ; sphere_map ; eye_linear;
#P comment 437 306 119 196617 modulate ; decal ; blend ; replace;
#P window setfont “Sans Serif” 18.;
#P comment 437 278 142 196626 texenv mode;
#P window setfont “Sans Serif” 9.;
#P hidden newex 408 712 104 196617 bgcolor 255 230 230;
#P comment 439 652 119 196617 nearest ; linear ; clamp ; repeat;
#P window setfont “Sans Serif” 18.;
#P comment 438 624 218 196626 texparameter pvalue;
#P window setfont “Sans Serif” 9.;
#P comment 438 553 119 196617 mag_filter ; min_filter ; wrap_s ; wrap_t ; border_color;
#P window setfont “Sans Serif” 18.;
#P comment 438 525 218 196626 texparameter pname;
#P window setfont “Sans Serif” 9.;
#P comment 438 481 119 196617 texture_gen_mode ; object_plane ; eye_plane;
#P window setfont “Sans Serif” 18.;
#P comment 438 453 137 196626 texgen pname;
#P window setfont “Sans Serif” 9.;
#P comment 438 394 119 196617 s ; t ; r ; q;
#P window setfont “Sans Serif” 18.;
#P comment 438 365 125 196626 texgen coord;
#P window setfont “Sans Serif” 9.;
#P comment 437 246 119 196617 mode ; color;
#P window setfont “Sans Serif” 18.;
#P comment 437 218 119 196626 texenv;
#P window setfont “Sans Serif” 9.;
#P comment 437 187 119 196617 flat ; smooth;
#P window setfont “Sans Serif” 18.;
#P comment 437 159 119 196626 shademodel;
#P window setfont “Sans Serif” 9.;
#P comment 437 51 120 196617 red_scale ; red_bias ; green_scale ; green_bias ; blue_scale ; blue_bias ; alpha_scale ; alpha_bias;
#P window setfont “Sans Serif” 18.;
#P comment 437 23 119 196626 pixeltransfer;
#P window setfont “Sans Serif” 9.;
#P comment 290 687 106 196617 fill 0 ; line 1 ; point 2;
#P window setfont “Sans Serif” 18.;
#P comment 290 659 133 196626 polygonmode;
#P window setfont “Sans Serif” 9.;
#P comment 290 614 106 196617 modelview ; projection ; texture;
#P window setfont “Sans Serif” 18.;
#P comment 290 586 133 196626 matrixmode;
#P window setfont “Sans Serif” 9.;
#P comment 290 122 120 196617 ambient ; diffuse ; specular ; position ; spot_cutoff ; spot_direction ; spot_exponent ; linear_attenuation ; quadratic_attenuation;
#P window setfont “Sans Serif” 18.;
#P comment 290 94 119 196626 lightparam;
#P window setfont “Sans Serif” 9.;
#P comment 290 50 120 196617 ambient ; local_viewer ; two_side;
#P window setfont “Sans Serif” 18.;
#P comment 290 22 119 196626 lightmodel;
#P window setfont “Sans Serif” 9.;
#P comment 167 640 116 196617 perspective_correction ; point_smooth ; line_smooth ; polygon_smooth ; fog;
#P window setfont “Sans Serif” 18.;
#P comment 167 612 117 196626 hint target;
#P window setfont “Sans Serif” 9.;
#P comment 30 673 101 196617 dont_care ; nicest ; fastest;
#P window setfont “Sans Serif” 18.;
#P comment 30 645 100 196626 hint mode;
#P window setfont “Sans Serif” 9.;
#P comment 30 600 101 196617 linear ; exp ; exp2;
#P window setfont “Sans Serif” 18.;
#P comment 30 572 100 196626 fog;
#P window setfont “Sans Serif” 9.;
#P comment 167 74 106 196617 fog ; lighting ; texture ; line_stipple ; polygon_stipple ; cull_face ; alpha_test ; blend ; index_logic_op ; color_logic_op ; dither ; stencil_test ; depth_test ; clip_plane0 ; clip_plane1 ; clip_plane2 ; clip_plane3 ; clip_plane4 ; clip_plane5 ; light0 ; light1 ; light2 ; light3 ; light4 ; light5 ; light6 ; light7 ; texture_gen_s ; texture_gen_t ; texture_gen_r ; texture_gen_q ; point_smooth ; line_smooth ; polygon_smooth ; scissor_test ; color_material ; normalize ; auto_normal ; polygon_offset_point ; polygon_offset_line ; polygon_offset_fill;
#P window setfont “Sans Serif” 18.;
#P comment 166 22 100 196626 enable/ disable;
#P window setfont “Sans Serif” 9.;
#P comment 290 501 106 196617 ambient ; diffuse ; specular ; emission ; ambient_and_diffuse ; shininess;
#P window setfont “Sans Serif” 18.;
#P comment 290 473 137 196626 materialparam;
#P window setfont “Sans Serif” 9.;
#P comment 290 272 101 196617 clear ; and ; and_inverse ; copy ; noop ; xor ; or ; nor ; equiv ; invert ; or_reverse ; copy_inverted ; or_inverted ; nand ; set;
#P window setfont “Sans Serif” 18.;
#P comment 290 244 100 196626 logicop;
#P window setfont “Sans Serif” 9.;
#P comment 30 502 124 196617 ambient ; diffuse ; specular ; emission ; ambient_and_diffuse;
#P window setfont “Sans Serif” 18.;
#P comment 30 474 136 196626 colormaterial;
#P window setfont “Sans Serif” 9.;
#P comment 30 416 131 196617 front 1 ; back 2 (cullface default) ; front_and_back 3 (all others default);
#P window setfont “Sans Serif” 18.;
#P comment 30 388 100 196626 face;
#P comment 30 211 122 196626 blendfunc;
#P comment 30 22 107 196626 draw prims;
#P window setfont “Sans Serif” 9.;
#P comment 30 50 67 196617 lines ; line_loop ; line_strip ; points ; polygon ; quads ; quad_grid ; quad_strip ; triangles ; tri_grid ; tri_fan ; tri_strip;
#P comment 30 240 131 196617 zero 0 ; one 1 ; dst_color 2 ; src_color 3 ; one_minus_dst_color 4 ; one_minus_src_color 5 ; src_alpha 6 ; one_minus_src_alpha 7 ; dst_alpha 8 ; one_minus_dst_alpha 9 ; src_alpha_saturate 10;
#P pop;
#P newobj 490 198 119 196617 p gl_symbolic_constants;
#P comment 353 221 345 196617 gllogicop ; glmaterial ; glmatrixmode ; glmultmatrix ; glnormal ; glortho ; glpixeltransfer ; glpixelzoom ; glpointsize ; glpolygonmode ; glpolygonoffset ; glpopattrib ; glpopmatrix ; glpushattrib ; glpushmatrix ; glrasterpos ; glreadpixels ; glrect ; glrotate ; glscale ; glscissor ; glshademodel ; gltexcoord ; gltexenv ( ) ; gltexgen ( ) ; gltexparameter ( ) ; gltranslate ; glvertex ; glviewport ;
#P message 7 24 109 196617 reset , glpointsize 4 , shapeprim points , glcolor 1 0 0 , torus 1. 0.3;
#P message 141 101 92 196617 glenable lighting , glenable light0 , glenable normalize;
#P message 357 23 159 196617 reset , glenable texture , glbindtexture grid , cylinder 1. 0.5 , glenable polygon_offset_fill , glpolygonoffset 1. -100. , glcolor 1 0 0 0 , gldisable texture , sphere 0.3 , glpolygonoffset 1. -200. , glcolor 0 0 0 , glenable polygon_offset_line , glpolygonmode front_and_back line , circle 0.3 , gldisable polygon_offset_fill , gldisable polygon_offset_line ,;
#P message 20 97 103 196617 glbegin line_loop , glvertex 0 0.5 0.5 , glvertex 0.5 0 0.2 , glvertex 0.1 0.5 0.5 , glend;
#P message 129 26 75 196617 glbegin points , glvertex 0 2 0 , glvertex 1 2 0 , glvertex 1 0 1 , glend;
#P newex 7 229 51 196617 s sketchy;
#P message 240 22 114 196617 reset , glenable cull_face , glcullface back , shapeslices 50 20 , glcolor 0.4 0.4 0 , cylinder 0.05 0.05 0.5 , moveto 0 0 -0.5 , shapeorient 180 0 0 , circle 0.1 , glcolor 0.3 0.2 1 , moveto 0 0 0.5 , circle 0.2 , moveto 0 0 0.75 , shapeorient 0 0 0 , cylinder 0 0.2 0.25;
#P comment 62 221 290 196617 glbegin ; glbindtexture ; glblendfunc ; glclear ; glclearcolor ; glcleardepth ; glclipplane ; glcolor () ; glcolormask ; glcolormaterial ; glcullface ; gldepthmask <0/1> ; gldepthrange ; gldisable ; gldrawpixels (src ) ; gledgeflag <0/1> ; glenable ; glend ; glfinish ; glflush ; glfog ; glfrustum ; glhint ; gllight ; gllightmodel ; gllinestipple ; gllinewidth ; glloadidentity ; glloadmatrix ;
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#P fasten 17 0 3 0 624 189 12 189;
#P fasten 8 0 3 0 12 152 12 152;
#P fasten 5 0 3 0 25 199 12 199;
#P fasten 4 0 3 0 134 199 12 199;
#P fasten 7 0 3 0 146 199 12 199;
#P fasten 2 0 3 0 245 199 12 199;
#P fasten 6 0 3 0 362 199 12 199;
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#P connect 19 0 18 0;
#P fasten 21 0 18 0 547 48 528 48;
#P fasten 16 0 14 0 638 70 528 70;
#P connect 18 0 14 0;
#P connect 14 0 15 0;
#P pop;
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#P window setfont “Sans Serif” 9.;
#P newex 292 484 51 196617 s sketchy;
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#P message 193 93 88 196617 move 0.1 0.1 0.1;
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#P message 27 574 78 196617 camera 2 2 2;
#P message 172 646 69 196617 line_width $1;
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#P toggle 242 623 15 0;
#P message 242 646 44 196617 axes $1;
#P toggle 641 624 15 0;
#P toggle 600 624 15 0;
#P newex 559 643 92 196617 pak poly_mode 0 0;
#P hidden newex 447 30 50 196617 loadbang;
#P number 50 135 35 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P toggle 396 58 15 0;
#P message 396 81 81 196617 depth_enable $1;
#P toggle 5 135 15 0;
#P newex 5 161 55 196617 metro 20;
#P newex 5 215 55 196617 t b erase b;
#P newex 172 334 79 196617 jit.gl.sketch foo;
#B color 5;
#P newex 5 645 80 196617 jit.gl.render foo;
#P newex 752 606 145 196617 jit.window foo @depthbuffer 1;
#P hidden message 527 37 14 196617 1;
#P newex 429 643 128 196617 pak position 0. 0. 0.;
#P message 292 309 55 196617 sphere 0.5;
#P newex 750 563 40 196617 key;
#P window linecount 9;
#P comment 503 289 417 196617 circle ; framecircle ; ellipse ; frameellipse ; sphere ; cylinder ; torus ; cube ; plane ;;
#P window linecount 10;
#P comment 503 138 364 196617 move ; moveto ; point ; line ; lineto ; linesegment ; quad ; framequad ; tri ; frametri ;;
#P window setfont “Sans Serif” 18.;
#P window linecount 1;
#P message 385 479 61 196626 reset;
#P window setfont “Sans Serif” 9.;
#P comment 26 492 114 196617 why is this invalid? –>;
#P user jit.pwindow 142 526 102 77 0 1 0 0 1 0;
#P user panel 15 472 267 68;
#X brgb 191 191 191;
#X frgb 0 0 0;
#X border 1;
#X rounded 0;
#X shadow 0;
#X done;
#P connect 139 0 11 0;
#P connect 13 0 11 0;
#P connect 30 0 25 0;
#P fasten 29 0 30 0 800 581 831 581 831 561 839 561;
#P fasten 6 0 29 0 755 582 792 582 792 561 800 561;
#P fasten 25 0 10 0 839 601 757 601;
#P connect 36 0 37 0;
#P connect 110 0 109 0;
#P connect 22 0 20 2;
#P connect 21 0 20 1;
#P connect 28 0 27 0;
#P hidden fasten 9 0 17 0 532 55 401 55;
#P hidden fasten 9 0 33 0 532 55 489 55;
#P hidden fasten 9 0 28 0 532 55 588 55;
#P hidden connect 123 0 122 0;
#P hidden fasten 126 0 123 0 147 719 587 719;
#P hidden fasten 127 0 123 0 223 719 587 719;
#P hidden fasten 128 0 123 0 285 719 587 719;
#P hidden fasten 129 0 123 0 345 719 587 719;
#P hidden fasten 130 0 123 0 404 719 587 719;
#P hidden fasten 131 0 123 0 460 719 587 719;
#P hidden fasten 132 0 123 0 524 719 587 719;
#P hidden fasten 133 0 123 0 588 719 587 719;
#P hidden fasten 134 0 123 0 652 719 587 719;
#P connect 40 0 8 3;
#P hidden connect 19 0 9 0;
#P connect 39 0 8 2;
#P connect 33 0 32 0;
#P connect 38 0 8 1;
#P fasten 116 0 69 0 744 670 417 670;
#P fasten 109 0 69 0 666 670 417 670;
#P fasten 54 0 69 0 177 670 417 670;
#P fasten 46 0 69 0 102 670 417 670;
#P fasten 8 0 69 0 434 670 417 670;
#P fasten 67 0 69 0 368 670 417 670;
#P fasten 34 0 69 0 295 670 417 670;
#P fasten 20 0 69 0 564 670 417 670;
#P fasten 23 0 69 0 247 670 417 670;
#P hidden fasten 66 0 69 0 361 670 417 670;
#P hidden fasten 65 0 69 0 361 670 417 670;
#P connect 48 0 47 0;
#P connect 17 0 16 0;
#P connect 68 0 67 0;
#P hidden connect 105 0 80 0;
#P fasten 103 0 80 0 211 467 297 467;
#P hidden connect 3 0 80 0;
#P hidden fasten 96 0 80 0 297 456 297 456;
#P hidden fasten 97 0 80 0 383 456 297 456;
#P hidden fasten 95 0 80 0 368 462 297 462;
#P hidden fasten 93 0 80 0 411 462 297 462;
#P hidden fasten 94 0 80 0 297 462 297 462;
#P hidden fasten 77 0 80 0 297 462 297 462;
#P hidden fasten 76 0 80 0 297 462 297 462;
#P hidden fasten 74 0 80 0 297 462 297 462;
#P hidden fasten 79 0 80 0 363 462 297 462;
#P hidden fasten 75 0 80 0 297 462 297 462;
#P hidden fasten 70 0 80 0 355 462 297 462;
#P hidden fasten 7 0 80 0 297 462 297 462;
#P hidden fasten 58 0 80 0 375 462 297 462;
#P hidden fasten 57 0 80 0 297 462 297 462;
#P hidden fasten 63 0 80 0 297 462 297 462;
#P hidden fasten 71 0 80 0 352 462 297 462;
#P hidden fasten 56 0 80 0 297 462 297 462;
#P hidden fasten 82 0 80 0 379 462 297 462;
#P hidden fasten 83 0 80 0 368 462 297 462;
#P hidden fasten 84 0 80 0 345 462 297 462;
#P hidden fasten 85 0 80 0 349 462 297 462;
#P connect 35 0 34 0;
#P fasten 117 0 59 0 169 410 248 410;
#P connect 118 1 59 0;
#P connect 24 0 23 0;
#P connect 104 0 103 0;
#P connect 53 0 54 0;
#P hidden connect 16 0 111 0;
#P hidden connect 16 0 12 0;
#P fasten 111 0 12 0 82 328 177 328;
#P hidden connect 108 0 12 0;
#P hidden connect 107 0 12 0;
#P hidden connect 106 0 12 0;
#P hidden connect 61 0 12 0;
#P hidden connect 60 0 12 0;
#P hidden fasten 42 0 12 0 198 333 177 333;
#P hidden connect 72 0 12 0;
#P hidden connect 73 0 12 0;
#P hidden connect 41 0 12 0;
#P hidden connect 31 0 12 0;
#P hidden connect 52 0 12 0;
#P hidden connect 51 0 12 0;
#P connect 78 0 12 0;
#P hidden connect 47 0 12 0;
#P hidden connect 37 0 12 0;
#P hidden connect 27 0 12 0;
#P hidden connect 32 0 12 0;
#P hidden connect 89 0 12 0;
#P hidden connect 44 0 12 0;
#P hidden connect 49 0 12 0;
#P hidden connect 50 0 12 0;
#P hidden connect 43 0 12 0;
#P connect 118 0 117 0;
#P fasten 12 1 118 0 246 361 169 361;
#P connect 45 0 46 0;
#P connect 112 0 111 0;
#P connect 113 0 112 0;
#P connect 18 0 14 1;
#P connect 13 2 86 0;
#P hidden connect 120 0 121 0;
#P fasten 88 0 11 0 22 598 10 598;
#P fasten 62 0 11 0 45 620 10 620;
#P fasten 55 0 11 0 32 610 10 610;
#P fasten 13 1 11 0 32 251 10 251;
#P fasten 64 0 11 0 53 631 10 631;
#P connect 26 0 13 0;
#P connect 14 0 26 0;
#P connect 15 0 14 0;
#P window clipboard copycount 140;

Quote: joshua goldberg wrote on Mon, 05 November 2007 07:33
—————————————————-
> try using the @capture [texturename] attribute with jit.gl.sketch.
>
> On Nov 5, 2007, at 10:03 AM, Solomon Bothwell wrote:
>
> >
> > Well..
> > Step two involved figuring out how to do some things which I imagine
> > would require openGL. I need to draw lines in 3d space which fade
> > from tail to head as they get longer.
> >
> > I meant this is the first somewhat difficult jitter task I am
> > attempting. I have been through all the tutorials and have made some
> > simpler patches in the past.
> >
>
>
—————————————————-

wes

check out examples/jitter-examples/render/jit.gl.render-tomatrix.

also, to go further, search the forum for a patch by by andrew benson called “scene process”.

and be patient.

Quote: wesley.hoke@gmail.com wrote on Mon, 05 November 2007 18:55
—————————————————-
> Um. It does work. The problem is that in your patch you have both
> jit.window foo and jit.matrix foo. Depending on which is loaded
> first, one or the other will be recognized as the foo context.
>
> wes
>
—————————————————-

Heres the trig functions I setup:
Let me know if the full patch is needed.

#P window setfont “Sans Serif” 9.;
#P window linecount 1;
#P message 81 363 193 196617 move $1 $2 $3 , cylinder 0.05 0.05 $4;
#P comment 280 242 86 196617 distance formula;
#P newex 158 240 105 196617 unpack 0. 0.;
#P newex 158 268 105 196617 expr sqrt($f1 + $f2);
#P newex 158 217 156 196617 vexpr pow((abs($f1 – $f2))\,2);
#P newex 187 150 104 196617 vexpr ($f1 + $f2)/2;
#P newex 7 422 459 196617 jit.gl.sketch MC.PMPD @depth_enable 1 @smooth_shading 1 @lighting_enable 1 @shininess 1;
#B color 5;
#P newex 158 92 90 196617 route linesegment;
#P newex 158 120 51 196617 zl slice 3;
#P comment 296 151 86 196617 midpoint formula;
#P user panel 182 144 210 32;
#X brgb 191 191 191;
#X frgb 0 0 0;
#X border 1;
#X rounded 0;
#X shadow 0;
#X done;
#P user panel 153 208 222 81;
#X brgb 191 191 191;
#X frgb 0 0 0;
#X border 1;
#X rounded 0;
#X shadow 0;
#X done;
#P newex 81 339 38 196617 zl join;
#P newex 67 282 36 196617 zl reg;
#P newex 158 297 27 196617 t b l;
#P comment 250 94 100 196617 x1 y1 z1 x2 y2 z2;
#P connect 15 0 9 0;
#P connect 1 0 2 0;
#P connect 2 0 3 0;
#P connect 3 0 15 0;
#P connect 10 0 2 1;
#P connect 1 1 3 1;
#P connect 8 0 7 0;
#P connect 7 0 11 0;
#P connect 11 0 13 0;
#P connect 13 0 12 0;
#P connect 12 0 1 0;
#P connect 7 0 10 0;
#P connect 13 1 12 1;
#P connect 7 1 10 1;
#P connect 10 0 11 1;
#P window clipboard copycount 16;