diff options
Diffstat (limited to 'demo/sgi/gl/kites.py')
| -rwxr-xr-x | demo/sgi/gl/kites.py | 214 |
1 files changed, 107 insertions, 107 deletions
diff --git a/demo/sgi/gl/kites.py b/demo/sgi/gl/kites.py index 764ad2c..36dc5d7 100755 --- a/demo/sgi/gl/kites.py +++ b/demo/sgi/gl/kites.py @@ -12,15 +12,15 @@ # # This program show 3 kites flying around the screen. It uses # -# * bgnpolygon, endpolygon -# * v3, n3 -# * lmdef, lmbind +# * bgnpolygon, endpolygon +# * v3, n3 +# * lmdef, lmbind # # Usage : -# -# ESC -> exit program -# MOUSE3 -> freeze toggle -# MOUSE2 -> one step (use this in freeze state) +# +# ESC -> exit program +# MOUSE3 -> freeze toggle +# MOUSE2 -> one step (use this in freeze state) from GL import * from gl import * @@ -32,28 +32,28 @@ from math import * # set appropiate material, call drawobject() # def viewobj (r, s, t, mat) : - pushmatrix() - rot (r * 10.0, 'X') - rot (r * 10.0, 'Y') - rot (r * 10.0, 'Z') - scale (s[0], s[1], s[2]) - translate (t[0], t[1], t[2]) - lmbind(MATERIAL, mat) - drawobject() - popmatrix() + pushmatrix() + rot (r * 10.0, 'X') + rot (r * 10.0, 'Y') + rot (r * 10.0, 'Z') + scale (s[0], s[1], s[2]) + translate (t[0], t[1], t[2]) + lmbind(MATERIAL, mat) + drawobject() + popmatrix() # # makeobj : the contructor of the object # def mkobj () : - v0 = (-5.0 ,0.0, 0.0) - v1 = (0.0 ,5.0, 0.0) - v2 = (5.0 ,0.0, 0.0) - v3 = (0.0 ,2.0, 0.0) - n0 = (sqrt(2.0)/2.0, sqrt(2.0)/2.0, 0.0) - vn = ((v0, n0), (v1, n0), (v2, n0), (v3, n0)) - # - return vn + v0 = (-5.0 ,0.0, 0.0) + v1 = (0.0 ,5.0, 0.0) + v2 = (5.0 ,0.0, 0.0) + v3 = (0.0 ,2.0, 0.0) + n0 = (sqrt(2.0)/2.0, sqrt(2.0)/2.0, 0.0) + vn = ((v0, n0), (v1, n0), (v2, n0), (v3, n0)) + # + return vn # # the object itself as an array of vertices and normals @@ -64,10 +64,10 @@ kite = mkobj () # drawobject : draw a triangle. with bgnpolygon # def drawobject () : - # - bgnpolygon() - vnarray (kite) - endpolygon() + # + bgnpolygon() + vnarray (kite) + endpolygon() # # identity matrix @@ -75,7 +75,7 @@ def drawobject () : idmat=[1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0] # -# the rgb-value of light-blue +# the rgb-value of light-blue # LightBlue = (43,169,255) @@ -102,93 +102,93 @@ model = [AMBIENT,0.2,0.2,0.2,LMNULL] # sets the viewing, defines and binds the materials # def initgl () : - # - # open window - # - foreground () - keepaspect (1, 1) - prefposition (100, 500, 100, 500) - w = winopen ('PYTHON lights') - keepaspect (1, 1) - winconstraints() - # - # configure pipeline (zbuf, 2buf, GOURAUD and RGBmode) - # - zbuffer (1) - doublebuffer () - shademodel (GOURAUD) - RGBmode () - gconfig () - # - # define and bind materials (set perspective BEFORE loadmat !) - # - mmode(MVIEWING) - perspective (900, 1.0, 1.0, 20.0) - loadmatrix(idmat) - lmdef(DEFMATERIAL, 1, m1) - lmdef(DEFMATERIAL, 2, m2) - lmdef(DEFMATERIAL, 3, m3) - lmdef(DEFLIGHT, 1, light1) - lmdef(DEFLIGHT, 2, light2) - lmdef(DEFLMODEL, 1, model) - lmbind(LIGHT0,1) - lmbind(LIGHT1,2) - lmbind(LMODEL,1) - # - # set viewing - # - lookat (0.0, 0.0, 10.0, 0.0, 0.0, 0.0, 0) - # - # ask for the REDRAW and ESCKEY events - # - qdevice(DEVICE.MOUSE3) - qdevice(DEVICE.MOUSE2) - qdevice(DEVICE.REDRAW) - qdevice(DEVICE.ESCKEY) - -# -# GoForIT : use 2buf to redraw the object 2n times. index i is used as + # + # open window + # + foreground () + keepaspect (1, 1) + prefposition (100, 500, 100, 500) + w = winopen ('PYTHON lights') + keepaspect (1, 1) + winconstraints() + # + # configure pipeline (zbuf, 2buf, GOURAUD and RGBmode) + # + zbuffer (1) + doublebuffer () + shademodel (GOURAUD) + RGBmode () + gconfig () + # + # define and bind materials (set perspective BEFORE loadmat !) + # + mmode(MVIEWING) + perspective (900, 1.0, 1.0, 20.0) + loadmatrix(idmat) + lmdef(DEFMATERIAL, 1, m1) + lmdef(DEFMATERIAL, 2, m2) + lmdef(DEFMATERIAL, 3, m3) + lmdef(DEFLIGHT, 1, light1) + lmdef(DEFLIGHT, 2, light2) + lmdef(DEFLMODEL, 1, model) + lmbind(LIGHT0,1) + lmbind(LIGHT1,2) + lmbind(LMODEL,1) + # + # set viewing + # + lookat (0.0, 0.0, 10.0, 0.0, 0.0, 0.0, 0) + # + # ask for the REDRAW and ESCKEY events + # + qdevice(DEVICE.MOUSE3) + qdevice(DEVICE.MOUSE2) + qdevice(DEVICE.REDRAW) + qdevice(DEVICE.ESCKEY) + +# +# GoForIT : use 2buf to redraw the object 2n times. index i is used as # the (smoothly changing) rotation angle # def GoForIt(i) : - freeze = 1 - while 1 : - if freeze <> 0 : - i = i + 1 - # - # clear z-buffer and clear background to light-blue - # - zclear() - c3i (LightBlue) - clear() - # - # draw the 3 traiangles scaled above each other. - # - viewobj(float(i),[1.0,1.0,1.0],[1.0,1.0,1.0],1) - viewobj(float(i),[0.75,0.75,0.75],[0.0,2.0,2.0],2) - viewobj(float(i),[0.5,0.5,0.5],[0.0,4.0,4.0],3) - # - swapbuffers() - # - if qtest() <> 0 : - dev, val = qread() - if dev = DEVICE.ESCKEY : - break - elif dev = DEVICE.REDRAW : - reshapeviewport () - elif dev = DEVICE.MOUSE3 and val <> 0 : - freeze = 1 - freeze - elif dev = DEVICE.MOUSE2 and val <> 0 : - i = i + 1 + freeze = 1 + while 1 : + if freeze <> 0 : + i = i + 1 + # + # clear z-buffer and clear background to light-blue + # + zclear() + c3i (LightBlue) + clear() + # + # draw the 3 traiangles scaled above each other. + # + viewobj(float(i),[1.0,1.0,1.0],[1.0,1.0,1.0],1) + viewobj(float(i),[0.75,0.75,0.75],[0.0,2.0,2.0],2) + viewobj(float(i),[0.5,0.5,0.5],[0.0,4.0,4.0],3) + # + swapbuffers() + # + if qtest() <> 0 : + dev, val = qread() + if dev = DEVICE.ESCKEY : + break + elif dev = DEVICE.REDRAW : + reshapeviewport () + elif dev = DEVICE.MOUSE3 and val <> 0 : + freeze = 1 - freeze + elif dev = DEVICE.MOUSE2 and val <> 0 : + i = i + 1 # the main program # def main () : - initgl () - GoForIt (0) + initgl () + GoForIt (0) # # exec main # -main () +main () |