cl-glut pre-study <page 6>
なかなかいいサンプルがあったので、レッスン17を以下のように変えてみた
http://blog.lowsnr.net/2013/04/14/using-opengl-with-common-lisp-and-macos-x/
;; ;; lesson17 <animation> ;; ----------------------------------------------------------------------------------------------- (defparameter *vertex* #(#(0.0 0.0 0.0) #(1.0 0.0 0.0) #(1.0 1.0 0.0) #(0.0 1.0 0.0) #(0.0 0.0 1.0) #(1.0 0.0 1.0) #(1.0 1.0 1.0) #(0.0 1.0 1.0))) (defparameter *edge* '(#(0 1) #(1 2) #(2 3) #(3 0) #(4 5) #(5 6) #(6 7) #(7 4) #(0 4) #(1 5) #(2 6) #(3 7))) (defun draw-figure (vertex edge) (labels ((set-vertex (index) (let ((v (aref vertex index))) (%gl:vertex-3d (aref v 0) (aref v 1) (aref v 2)))) ;(gl:vertex (aref v 0) (aref v 1) (aref v 2)))) (draw-face (vertex-indices) (gl:begin :lines) (map nil #'set-vertex vertex-indices) (gl:end))) (map nil #'(lambda (x) (draw-face x)) edge))) (defvar *r* 0) ; angle (defvar *p* 5.0) ; lookat (defvar *flag* t) ; rotation flag (defvar *toggle* t) ;toggle switch ;; Set window class (defclass Window (glut:window) ((fullscreen :initarg :fullscreen :reader fullscreen-p)) (:default-initargs :pos-x 100 :pos-y 100 :width 500 :height 500 :fullscreen nil :mode '(:double :rgba) :title "cube-test")) ;; Init (defmethod glut:display-window :before ((window Window)) (gl:clear-color 1 1 1 1) ; set white (when (fullscreen-p window) ; check to see if fullscreen needed (glut:full-screen))) ; if so, then tell GLUT ;; View port (defmethod glut:reshape ((window Window) width height) (gl:viewport 0 0 width height) (gl:matrix-mode :projection) (gl:load-identity) (glu:perspective 30.0 (/ width height) 1.0 100.0) (gl:matrix-mode :modelview)) ; idle (defmethod glut:idle ((window Window)) ;; user idling process (sleep (/ 1.0 60.0)) (glut:post-redisplay)) ;; mouse (defmethod glut:mouse ((window Window) button state x y) (declare (ignore x y)) (case button (:RIGHT-BUTTON (if (eql state :DOWN) (progn (setf *flag* t) (glut:enable-event window :idle)) (glut:disable-event window :idle))) (:MIDDLE-BUTTON (if (eql state :DOWN) (glut:post-redisplay))) (:LEFT-BUTTON (if (eql state :DOWN) (progn (setf *flag* nil) (glut:enable-event window :idle)) (glut:disable-event window :idle))))) ;; mouse-wheel (defmethod glut:mouse-wheel ((window Window) wheel direction x y) (declare (ignore x y)) (case direction (:wheel-down (progn (incf *p* 0.2) (when (>= *p* 9.8) (setf *p* 9.8)) (glut:post-redisplay))) (otherwise (progn (decf *p* 0.2) (when (<= *p* 0.2) (setf *p* 0.2)) (glut:post-redisplay))))) ;; Keyboard (defmethod glut:keyboard ((window Window) key x y) (declare (ignore x y)) (case key ((#\q #\Q) ; q, Q --> exit (glut:destroy-current-window)) ((#\f #\F) ; f, F --> full or windowed (if (eql *toggle* t) (progn (setf *toggle* nil) (glut:full-screen)) (progn (setf *toggle* t) (glut:position-window 100 100) ; initial position (glut:reshape-window 500 500)))))) ; initial width height ;; Display (defmethod glut:display ((window Window)) (gl:clear :color-buffer-bit) ; clear buffer (gl:load-identity) (glu:look-at 3.0 4.0 *p* 0.0 0.0 0.0 0.0 1.0 0.0) (gl:rotate *r* 0.0 1.0 0.0) ;; cube (gl:scale 1 1 1) (gl:color 0.0 0.0 0.0) (draw-figure *vertex* *edge*) (glut:swap-buffers) (if (eql *flag* t) (incf *r*) ; right rotation (decf *r*)) ; left rotation (cond ((>= *r* 360) (setf *r* 0)) ((<= *r* 0) (setf *r* 360)))) ;; Main (defun lesson17 () (glut:display-window (make-instance 'Window))) ; create window (lesson17)
レッスン18.多面体を塗りつぶす
確かに変な表示だ
;; ;; lesson18 <fill the polyhedron> ;; ----------------------------------------------------------------------------------------------- (defparameter *vertex* #(#(0.0 0.0 0.0) #(1.0 0.0 0.0) #(1.0 1.0 0.0) #(0.0 1.0 0.0) #(0.0 0.0 1.0) #(1.0 0.0 1.0) #(1.0 1.0 1.0) #(0.0 1.0 1.0))) (defparameter *face* '((#(0 1 2 3) #(1 0 0)) ; red (#(1 5 6 2) #(0 1 0)) ; green (#(5 4 7 6) #(0 0 1)) ; blue (#(4 0 3 7) #(1 1 0)) ; yellow (#(4 5 1 0) #(1 0 1)) ; magenda (#(3 2 6 7) #(0 1 1)))) ; cyan (defun draw-figure (vertex face) (labels ((set-color (color) (%gl:color-3d (aref color 0) (aref color 1) (aref color 2))) (set-vertex (index) (let ((v (aref vertex index))) (%gl:vertex-3d (aref v 0) (aref v 1) (aref v 2)))) (draw-face (vertex-indices color) (gl:begin :quads) (set-color color) (map nil #'set-vertex vertex-indices) (gl:end))) (map nil #'(lambda (x) (draw-face (first x) (second x))) face))) (defvar *r* 0) ; angle (defvar *p* 5.0) ; lookat (defvar *flag* t) ; rotation flag (defvar *toggle* t) ;toggle switch ;; Set window class (defclass Window (glut:window) ((fullscreen :initarg :fullscreen :reader fullscreen-p)) (:default-initargs :pos-x 100 :pos-y 100 :width 500 :height 500 :fullscreen nil :mode '(:double :rgb) :title "cube-test")) ;; Init (defmethod glut:display-window :before ((window Window)) (gl:clear-color 1 1 1 1) ; set white (when (fullscreen-p window) ; check to see if fullscreen needed (glut:full-screen))) ; if so, then tell GLUT ;; View port (defmethod glut:reshape ((window Window) width height) (gl:viewport 0 0 width height) (gl:matrix-mode :projection) (gl:load-identity) (glu:perspective 30.0 (/ width height) 1.0 100.0) (gl:matrix-mode :modelview)) ; idle (defmethod glut:idle ((window Window)) ;; user idling process (sleep (/ 1.0 60.0)) (glut:post-redisplay)) ;; mouse (defmethod glut:mouse ((window Window) button state x y) (declare (ignore x y)) (case button (:RIGHT-BUTTON (if (eql state :DOWN) (progn (setf *flag* t) (glut:enable-event window :idle)) (glut:disable-event window :idle))) (:MIDDLE-BUTTON (if (eql state :DOWN) (glut:post-redisplay))) (:LEFT-BUTTON (if (eql state :DOWN) (progn (setf *flag* nil) (glut:enable-event window :idle)) (glut:disable-event window :idle))))) ;; mouse-wheel (defmethod glut:mouse-wheel ((window Window) wheel direction x y) (declare (ignore x y)) (case direction (:wheel-down (progn (incf *p* 0.2) (when (>= *p* 9.8) (setf *p* 9.8)) (glut:post-redisplay))) (otherwise (progn (decf *p* 0.2) (when (<= *p* 0.2) (setf *p* 0.2)) (glut:post-redisplay))))) ;; Keyboard (defmethod glut:keyboard ((window Window) key x y) (declare (ignore x y)) (case key ((#\q #\Q) ; q, Q --> exit (glut:destroy-current-window)) ((#\f #\F) ; f, F --> full or windowed (if (eql *toggle* t) (progn (setf *toggle* nil) (glut:full-screen)) (progn (setf *toggle* t) (glut:position-window 100 100) ; initial position (glut:reshape-window 500 500)))))) ; initial width height ;; Display (defmethod glut:display ((window Window)) (gl:clear :color-buffer-bit) ; clear buffer (gl:load-identity) (glu:look-at 3.0 4.0 *p* 0.0 0.0 0.0 0.0 1.0 0.0) (gl:rotate *r* 0.0 1.0 0.0) ;; cube (gl:scale 1 1 1) ; x,y,z same scale (draw-figure *vertex* *face*) (glut:swap-buffers) (if (eql *flag* t) (incf *r*) ; right rotation (decf *r*)) ; left rotation (cond ((>= *r* 360) (setf *r* 0)) ((<= *r* 0) (setf *r* 360)))) ;; Main (defun lesson18 () (glut:display-window (make-instance 'Window))) ; create window (lesson18)
レッスン19.デプスバッファを使用する
表示がまともになった
;; ;; lesson19 <depth buffer> ;; ----------------------------------------------------------------------------------------------- (defparameter *vertex* #(#(0.0 0.0 0.0) #(1.0 0.0 0.0) #(1.0 1.0 0.0) #(0.0 1.0 0.0) #(0.0 0.0 1.0) #(1.0 0.0 1.0) #(1.0 1.0 1.0) #(0.0 1.0 1.0))) (defparameter *face* '((#(0 1 2 3) #(1 0 0)) ; red (#(1 5 6 2) #(0 1 0)) ; green (#(5 4 7 6) #(0 0 1)) ; blue (#(4 0 3 7) #(1 1 0)) ; yellow (#(4 5 1 0) #(1 0 1)) ; magenda (#(3 2 6 7) #(0 1 1)))) ; cyan (defun draw-figure (vertex face) (labels ((set-color (color) (%gl:color-3d (aref color 0) (aref color 1) (aref color 2))) (set-vertex (index) (let ((v (aref vertex index))) (%gl:vertex-3d (aref v 0) (aref v 1) (aref v 2)))) (draw-face (vertex-indices color) (gl:begin :quads) (set-color color) (map nil #'set-vertex vertex-indices) (gl:end))) (map nil #'(lambda (x) (draw-face (first x) (second x))) face))) (defvar *r* 0) ; angle (defvar *p* 5.0) ; lookat (defvar *flag* t) ; rotation flag (defvar *toggle* t) ;toggle switch ;; Set window class (defclass Window (glut:window) ((fullscreen :initarg :fullscreen :reader fullscreen-p)) (:default-initargs :pos-x 100 :pos-y 100 :width 500 :height 500 :fullscreen nil :mode '(:double :rgb) :title "cube-test")) ;; Init (defmethod glut:display-window :before ((window Window)) (gl:clear-color 1 1 1 1) ; set white (gl:enable :depth-test) ; enable depth testing (when (fullscreen-p window) ; check to see if fullscreen needed (glut:full-screen))) ; if so, then tell GLUT ;; View port (defmethod glut:reshape ((window Window) width height) (gl:viewport 0 0 width height) (gl:matrix-mode :projection) (gl:load-identity) (glu:perspective 30.0 (/ width height) 1.0 100.0) (gl:matrix-mode :modelview)) ; idle (defmethod glut:idle ((window Window)) ;; user idling process (sleep (/ 1.0 60.0)) (glut:post-redisplay)) ;; mouse (defmethod glut:mouse ((window Window) button state x y) (declare (ignore x y)) (case button (:RIGHT-BUTTON (if (eql state :DOWN) (progn (setf *flag* t) (glut:enable-event window :idle)) (glut:disable-event window :idle))) (:MIDDLE-BUTTON (if (eql state :DOWN) (glut:post-redisplay))) (:LEFT-BUTTON (if (eql state :DOWN) (progn (setf *flag* nil) (glut:enable-event window :idle)) (glut:disable-event window :idle))))) ;; mouse-wheel (defmethod glut:mouse-wheel ((window Window) wheel direction x y) (declare (ignore x y)) (case direction (:wheel-down (progn (incf *p* 0.2) (when (>= *p* 9.8) (setf *p* 9.8)) (glut:post-redisplay))) (otherwise (progn (decf *p* 0.2) (when (<= *p* 0.2) (setf *p* 0.2)) (glut:post-redisplay))))) ;; Keyboard (defmethod glut:keyboard ((window Window) key x y) (declare (ignore x y)) (case key ((#\q #\Q) ; q, Q --> exit (glut:destroy-current-window)) ((#\f #\F) ; f, F --> full or windowed (if (eql *toggle* t) (progn (setf *toggle* nil) (glut:full-screen)) (progn (setf *toggle* t) (glut:position-window 100 100) ; initial position (glut:reshape-window 500 500)))))) ; initial width height ;; Display (defmethod glut:display ((window Window)) (gl:clear :color-buffer-bit :depth-buffer-bit) ; clear buffer and set depth buffer (gl:load-identity) (glu:look-at 3.0 4.0 *p* 0.0 0.0 0.0 0.0 1.0 0.0) (gl:rotate *r* 0.0 1.0 0.0) ;; cube (gl:scale 1 1 1) ; x,y,z same scale (draw-figure *vertex* *face*) (glut:swap-buffers) (if (eql *flag* t) (incf *r*) ; right rotation (decf *r*)) ; left rotation (cond ((>= *r* 360) (setf *r* 0)) ((<= *r* 0) (setf *r* 360)))) ;; Main (defun lesson19 () (glut:display-window (make-instance 'Window))) ; create window (lesson19)
レッスン20.カリング
見た目は全く変わらないため、画像は割愛
;; ;; lesson20 <culling> ;; ----------------------------------------------------------------------------------------------- (defparameter *vertex* #(#(0.0 0.0 0.0) #(1.0 0.0 0.0) #(1.0 1.0 0.0) #(0.0 1.0 0.0) #(0.0 0.0 1.0) #(1.0 0.0 1.0) #(1.0 1.0 1.0) #(0.0 1.0 1.0))) (defparameter *face* '((#(0 1 2 3) #(1 0 0)) ; red (#(1 5 6 2) #(0 1 0)) ; green (#(5 4 7 6) #(0 0 1)) ; blue (#(4 0 3 7) #(1 1 0)) ; yellow (#(4 5 1 0) #(1 0 1)) ; magenda (#(3 2 6 7) #(0 1 1)))) ; cyan (defun draw-figure (vertex face) (labels ((set-color (color) (%gl:color-3d (aref color 0) (aref color 1) (aref color 2))) (set-vertex (index) (let ((v (aref vertex index))) (%gl:vertex-3d (aref v 0) (aref v 1) (aref v 2)))) (draw-face (vertex-indices color) (gl:begin :quads) (set-color color) (map nil #'set-vertex vertex-indices) (gl:end))) (map nil #'(lambda (x) (draw-face (first x) (second x))) face))) (defvar *r* 0) ; angle (defvar *p* 5.0) ; lookat (defvar *flag* t) ; rotation flag (defvar *toggle* t) ;toggle switch ;; Set window class (defclass Window (glut:window) ((fullscreen :initarg :fullscreen :reader fullscreen-p)) (:default-initargs :pos-x 100 :pos-y 100 :width 500 :height 500 :fullscreen nil :mode '(:double :rgb) :title "cube-test")) ;; Init (defmethod glut:display-window :before ((window Window)) (gl:clear-color 1 1 1 1) ; set white (gl:enable :depth-test) ; enable depth testing (gl:cull-face :back) ; cullface (when (fullscreen-p window) ; check to see if fullscreen needed (glut:full-screen))) ; if so, then tell GLUT ;; View port (defmethod glut:reshape ((window Window) width height) (gl:viewport 0 0 width height) (gl:matrix-mode :projection) (gl:load-identity) (glu:perspective 30.0 (/ width height) 1.0 100.0) (gl:matrix-mode :modelview)) ; idle (defmethod glut:idle ((window Window)) ;; user idling process (sleep (/ 1.0 60.0)) (glut:post-redisplay)) ;; mouse (defmethod glut:mouse ((window Window) button state x y) (declare (ignore x y)) (case button (:RIGHT-BUTTON (if (eql state :DOWN) (progn (setf *flag* t) (glut:enable-event window :idle)) (glut:disable-event window :idle))) (:MIDDLE-BUTTON (if (eql state :DOWN) (glut:post-redisplay))) (:LEFT-BUTTON (if (eql state :DOWN) (progn (setf *flag* nil) (glut:enable-event window :idle)) (glut:disable-event window :idle))))) ;; mouse-wheel (defmethod glut:mouse-wheel ((window Window) wheel direction x y) (declare (ignore x y)) (case direction (:wheel-down (progn (incf *p* 0.2) (when (>= *p* 9.8) (setf *p* 9.8)) (glut:post-redisplay))) (otherwise (progn (decf *p* 0.2) (when (<= *p* 0.2) (setf *p* 0.2)) (glut:post-redisplay))))) ;; Keyboard (defmethod glut:keyboard ((window Window) key x y) (declare (ignore x y)) (case key ((#\q #\Q) ; q, Q --> exit (glut:destroy-current-window)) ((#\f #\F) ; f, F --> full or windowed (if (eql *toggle* t) (progn (setf *toggle* nil) (glut:full-screen)) (progn (setf *toggle* t) (glut:position-window 100 100) ; initial position (glut:reshape-window 500 500)))))) ; initial width height ;; Display (defmethod glut:display ((window Window)) (gl:clear :color-buffer-bit :depth-buffer-bit) ; clear buffer and set depth buffer (gl:load-identity) (glu:look-at 3.0 4.0 *p* 0.0 0.0 0.0 0.0 1.0 0.0) (gl:rotate *r* 0.0 1.0 0.0) ;; cube (gl:scale 1 1 1) ; x,y,z same scale (draw-figure *vertex* *face*) (glut:swap-buffers) (if (eql *flag* t) (incf *r*) ; right rotation (decf *r*)) ; left rotation (cond ((>= *r* 360) (setf *r* 0)) ((<= *r* 0) (setf *r* 360)))) ;; Main (defun lesson20 () (glut:display-window (make-instance 'Window))) ; create window (lesson20)
遅々として進まないが、なかなか面白い。