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advanced-r3d.r

REBOL [ Title: "Advanced R3D demo" Author: "Massimiliano Vessi" Email: %maxint--tiscali--it Date: 09-Oct-2012 version: 3.1.6 file: %advanced-r3d.r Purpose: "R3D demo" ;following data are for www.rebol.org library ;you can find a lot of rebol script there library: [ level: 'intermidiate platform: 'all type: [demo tool] domain: [animation graphics] tested-under: [windows linux] support: none license: [gpl] see-also: none ] ] if not exists? %3D-models/ [make-dir %3D-models/ ] change-dir %3D-models/ if not exists? %r3d2.r [ request-download/to http://www.rebol.org/download-a-script.r?script-name=r3d2.r %r3d2.r ] do %r3d2.r if not exists? %palms.jpg [ request-download/to http://www.rebol.com/view/demos/palms.jpg %palms.jpg ] img: load-image %palms.jpg list-3d: [Apple.off asu.off dragon.off goblet.off head.off heart.off helm.off house.off king.off klingon.off mushroom.off pear.off r2.off seashell.off space_shuttle.off space_station.off Sword01.off teapot.off volks.off x29_plane.off ] foreach item list-3d [ item2: to-file item if not exists? to-file item2 [ request-download/to (join http://www.maxvessi.net/rebsite/3D-models/ item) item2 ] ] Transx: 300 Transy: 290 Transz: 320 projection: 256 hr: 1 model: cube-model color2: color: red ;color2 is the backup of the color colorb2: colorb: black ;background backg: 0 dimx: dimy: dimz: 100 reset-3d: func [] [dimx: dimy: dimz: 100] ;to reset view translx: transly: translz: 0 rotx: roty: rotz: 0 ; Set some camera Lookatx: Lookaty: Lookatz: 100.0 ; starting camera will look this position no-cull: false ;model: reduce [cube-model (r3d-scale dimx dimy dimz) red ] do update-3d: func [ ] [ ; This "update" function is where world: copy [] ; everything is defined. properties: r3d-compose-m4 reduce [ r3d-scale dimx dimy dimz r3d-translate translx transly translz r3d-rotateX rotx r3d-rotateY roty r3d-rotateZ rotz ] object: reduce [ model properties color] append world reduce [ object ] camera: r3d-position-object reduce [Transx Transy Transz] reduce [Lookatx Lookaty Lookatz] reduce [sine hr 0 cosine hr] either no-cull [RenderTriangles: render/no-cull world camera (r3d-perspective projection) 400x360][ RenderTriangles: render world camera (r3d-perspective projection) 400x360] switch backg [ 0 [ none ] 1 [ insert RenderTriangles [image 0x0 400x360 logo.gif] ] 2 [ insert RenderTriangles [ pen none fill-pen linear 0x0 0 90 90 1 1 blue sky brown box 0x0 400x360 ] ] ] ;probe RenderTriangles ; This line demonstrates what's going on ] ; under the hood. You can eliminate it. view layout [ panel [ scrn: box 400x360 black effect [draw RenderTriangles] ; basic draw return h2 "Objects" radio-line true "Box made of 12 triangle faces" [model: cube-model no-cull: false update-3d show scrn ] radio-line "Cube red made of 6 square faces" [model: cube2-model no-cull: false update-3d show scrn ] radio-line "Triangular pyramid" [model: pyramid-model no-cull: false update-3d show scrn ] radio-line "Square pyramid transparent red" [model: square-pyramid-model no-cull: false update-3d show scrn ] radio-line "Octagonal prysm" [model: prysm-8-model no-cull: false update-3d show scrn ] radio-line as-is "Just a face, faces have just one side shown, ^/ move RotationZ to see it" [model: wall-model no-cull: false projection: 256 update-3d show scrn ] panel [ across btn "Load OFF file..." [ no-cull: true off-file: request-file/only/filter/title "*.off" "Select a OFF file:" "Load" model: r3d-Load-OFF off-file ; calculate default scale from model/3 if it exists modelsize: 1.0 modelsize: model/3 if modelsize < 1.0 [ modelsize: 1.0 ] defaultScale: 512 / modelsize dimx: dimy: dimz: defaultScale update-3d show scrn ] btn "Reset dimensions" [reset-3d update-3d show scrn] return text italic 250 {Since not all models have a correct normal face orientation, I turned off back face culling for the model downloaded. I can be slow on old PC.} ] ] panel [ h2 "Camera" panel 142.101.117 [ label "TransX" slider 60x16 [Transx: 300 - (value * 600 ) update-3d show scrn] label "TransY" slider 60x16 [Transy: 290 - (value * 600 ) update-3d show scrn] label "TransZ" slider 60x16 [Transz: 320 - (value * 600) update-3d show scrn] return label "LookatX" slider 0.17 60x16 [Lookatx: (value * 600 ) update-3d show scrn] label "LookatY" slider 0.17 60x16 [Lookaty: (value * 600 ) update-3d show scrn] label "LookatZ" slider 0.17 60x16 [Lookatz: (value * 600 ) update-3d show scrn] return label "Projection" slider 0.5 60x16 [projection: (value * 500 ) if projection = 0 [projection: 0.1] update-3d show scrn ] label "UP vector" slider 60x16 [hr: (value * 360 ) if hr = 0 [hr: 0.1] update-3d show scrn ] ] return h2 "Objects properties" panel 0.51.64 [ label "DeformX" slider 0.17 60x16 [dimx: value * 600 update-3d show scrn] label "DeformY" slider 0.17 60x16 [dimy: value * 600 update-3d show scrn] label "DeformZ" slider 0.17 60x16 [dimz: value * 600 update-3d show scrn] return label "TransX" slider 60x16 [translx: value * 600 update-3d show scrn] label "TransY" slider 60x16 [transly: value * 600 update-3d show scrn] label "TransZ" slider 60x16 [translz: value * 600 update-3d show scrn] return label "RotationX" slider 60x16 [rotx: value * 360 update-3d show scrn] label "RotationY" slider 60x16 [roty: value * 360 update-3d show scrn] label "RotationZ" slider 60x16 [rotz: value * 360 update-3d show scrn] ] return h2 "Color and bitmap" panel 39.80.0 edge [size: 5x5 color: 39.80.0 ] [ across radio true [color: color2 update-3d show scrn] label "Object with color" button 39.80.0 "Change color" [ color: request-color if none? color [color: color2] color2: color update-3d show scrn ] return radio [color2: color color: img update-3d show scrn] label "Object with image" return panel [ across radio true [ backg: 0 colorb: colorb2 scrn/color: colorb update-3d show scrn ] label "Bakcground with color" button 39.80.0 "Change color" [ colorb: request-color if none? colorb [colorb: colorb2] colorb2: colorb scrn/color: colorb show scrn ] return radio [backg: 1 update-3d show scrn] label "Background with image" return radio [backg: 2 update-3d show scrn] label "Background 3D" ] ] ] ]
halt ;; to terminate script if DO'ne from webpage
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