| 96842cff | (in-package :fwoar.lisp-sandbox.1)
(defun raytrace (out &optional (*samples-per-pixel* 10) (image-width 400) (max-depth 50))
(let* ((world (append (list (sphere #(0 0 -1) .5
#(0.5 0.5 0.0)
(dielectric-material 0.4)
#+(or)
(lambda (rec ray world depth)
(declare (ignore rec world depth))
(with-slots (direction) ray
(fw.lu:vector-destructuring-bind
(x y z) (unit-vector direction)
(vector (abs x)
(abs y)
(abs z)))))))
(loop repeat 30
collect (sphere (vector (rand-min-max -3 3)
(rand-min-max -0.5 2)
(rand-min-max -1.5d0 -0.5d0))
(rand-min-max 0.2 0.5)
(vector (random 1.0d0)
(random 1.0d0)
(random 1.0d0))
(case (random 5)
(0 (lambertian-material
(rand-min-max 0.25 0.75)))
(1 (metal-material
(rand-min-max 0.25 0.75)))
(2 (fuzzy-metal-material
(rand-min-max 0.25 0.75)
(rand-min-max 0.01 0.75)))
(3 (dielectric-material
(rand-min-max 0.1 2.4)))
(4 #'original-material)
(5
(lambda (rec ray world depth)
(declare (ignore rec world depth))
(vector 1d0 1d0 1d0)
#+(or)
(with-slots (direction) ray
(fw.lu:vector-destructuring-bind
(x y z) (unit-vector direction)
(vector (abs x)
(abs y)
(abs z)))))))))
;; #+(or)
(list (sphere #(0 -100.5 -1) 100
#(0.5 0.5 0.5)
(lambertian-material 0.2)))))
(aspect-ratio 4/3)
(image-height (* (floor (/ image-width aspect-ratio))))
(camera (camera :focal-length 1.0d0)))
(let ((mailbox (sb-concurrency:make-mailbox)))
(loop for j in (shuffle (loop for x from 0 to image-height collect x))
do
(sb-concurrency:send-message
(aref *thread-queues*
(mod j
(length *thread-queues*)))
(list *samples-per-pixel*
j image-width
image-height camera
world max-depth
(lambda (a b)
(sb-concurrency:send-message
mailbox
(list a b))))))
(write-colors nil
(lambda (c)
(loop with messages = 0
for it = (sb-concurrency:receive-message mailbox :timeout 2)
while it
do (destructuring-bind (color pos) it
(funcall c color pos))))
image-width))))
(defun refraction-scene
(out &optional (*samples-per-pixel* 10) (image-width 400) (max-depth 50))
(let* ((world (list (sphere #(0 0 -1) .5
#(0.5 0.5 0.0)
(lambertian-material #(0.7 0.3 0.3)))
(sphere #(-1 0 -1) 0.5
#(0 0 0)
(dielectric-material 1.5))
(sphere #(-1 0 -1) -0.4
#(0 0 0)
(dielectric-material 1.5))
(sphere #(-1 0 -1) -0.2
#(0 0 0)
(lambertian-material
#(0.8 0.6 0.2)))
#+(or)
(sphere #(1 0 -1) 0.5
#(0 0 0)
(dielectric-material 2.4))
#+(or)
(sphere #(-2 0 -1) 0.5
#(0 0 0)
(metal-material #(0.8 0.8 0.8)))
(sphere #(1 0 -1) 0.5
#(0 0 0)
(metal-material #(0.8 0.6 0.2)))
(sphere #(0 -100.5 -1) 100
#(0.5 0.5 0.5)
(lambertian-material #(0.8 0.8 0.0)))))
(aspect-ratio 16/9)
(image-height (* (floor (/ image-width aspect-ratio))))
(camera (camera)))
(let ((mailbox (sb-concurrency:make-mailbox)))
(loop for j in (shuffle (loop for x from 0 to image-height collect x))
do
(sb-concurrency:send-message
(aref *thread-queues*
(mod j
(length *thread-queues*)))
(list *samples-per-pixel*
j image-width
image-height camera
world max-depth
(lambda (a b)
(sb-concurrency:send-message
mailbox
(list a b))))))
(write-colors nil
(lambda (c)
(loop with messages = 0
for it = (sb-concurrency:receive-message mailbox :timeout 2)
while it
do (destructuring-bind (color pos) it
(funcall c color pos))))
image-width))))
(defun refraction-scene1
(out &optional (*samples-per-pixel* 10) (image-width 400) (max-depth 50))
(let* ((world (list (sphere #(0 0 -1) 1
#(0.5 0.5 0.0)
(dielectric-material 2.4))
(sphere #(-0.5 0 -1) 0.5
#(0 0 0)
(dielectric-material 1.5 0.2))
(sphere #(-0.5 0 -1) -0.4
#(0 0 0)
(dielectric-material 1.5 0.2))
(sphere #(-0.5 0 -1) -0.2
#(0 0 0)
(metal-material
#(0.8 0.6 0.2)))
#+(or)
(sphere #(1 0 -1) 0.5
#(0 0 0)
(dielectric-material 2.4))
#+(or)
(sphere #(-2 0 -1) 0.5
#(0 0 0)
(metal-material #(0.8 0.8 0.8)))
(sphere #(0.5 0 -1) 0.5
#(0 0 0)
(metal-material #(0.8 0.6 0.2)))
(sphere #(0 -100.5 -1) 100
#(0.5 0.5 0.5)
(lambertian-material #(0.8 0.8 0.0)))))
(aspect-ratio 16/9)
(image-height (* (floor (/ image-width aspect-ratio))))
(camera (camera)))
(let ((mailbox (sb-concurrency:make-mailbox)))
(loop for j in (shuffle (loop for x from 0 to image-height collect x))
do
(sb-concurrency:send-message
(aref *thread-queues*
(mod j
(length *thread-queues*)))
(list *samples-per-pixel*
j image-width
image-height camera
world max-depth
(lambda (a b)
(sb-concurrency:send-message
mailbox
(list a b))))))
(write-colors nil
(lambda (c)
(loop with messages = 0
for it = (sb-concurrency:receive-message mailbox :timeout 2)
while it
do (destructuring-bind (color pos) it
(funcall c color pos))))
image-width))))
|
| 6b17e8ac | (defun refraction-scene2
(&optional (*samples-per-pixel* 10) (image-width 400) (max-depth 50) (rows nil rows-p))
(let* ((world (list (sphere #( 0.0 0 -1.0) 0.1 #(0.5 0.5 0.0) (dielectric-material 1.5))
(sphere #( 0.0 0 -1.4) 0.2 #(0.5 0.5 0.0) (dielectric-material 1.7))
(sphere #( 0.0 0 -2.4) 0.8 #(0.5 0.5 0.0) (dielectric-material 1.9))
(sphere #(-0.0 0 -3.6) 1.0 #(0.5 0.5 0.0) (dielectric-material 2.1))
(sphere #(-0.0 0 -5.0) 1.2 #(0.5 0.5 0.0) (dielectric-material 2.3))
(sphere #(-0.0 0 -6.6) 1.4 #(0.5 0.5 0.0) (dielectric-material 2.5))
#+foo (sphere #(-0.0 0 -1) -0.2
#(0 0 0)
(metal-material #(0.859375d0 0.859375d0 0.796875d0)))
#+foo (sphere #(0.6 0.0 -1) 0.2
#(0 0 0)
(metal-material #(0.859375d0 0.859375d0 0.796875d0)))
#+foo (sphere #(0 1 -1) 0.2
nil
(lambda (rec ray world depth)
(declare (ignore rec ray world depth))
#(1.0d0 1.0d0 1.0d0)))
(sphere #(0 -1000.5 -1.5) 1000
#(0.5 0.5 0.5)
(lambertian-material #(0.8 0.0 0.0))))
#+(or)
(list
(sphere #(-0.0 0 -1) 0.2
#(0 0 0)
(metal-material
#(0.8 0.6 0.2)))
(sphere #(0 -100.5 -1.5) 100
#(0.5 0.5 0.5)
(lambertian-material #(0.8 0.8 0.0)))))
(aspect-ratio 16/9)
(image-height (* (floor (/ image-width aspect-ratio))))
(camera (camera)))
(let ((mailbox (sb-concurrency:make-mailbox)))
(loop for j in (if rows-p
rows
(shuffle (loop for x from 0 to image-height collect x)))
do
(sb-concurrency:send-message
(aref *thread-queues*
(mod j
(length *thread-queues*)))
(list *samples-per-pixel*
j image-width
image-height camera
world max-depth
(lambda (a b)
(sb-concurrency:send-message
mailbox
(list a b))))))
(write-colors nil
(lambda (c)
(loop with messages = 0
for it = (sb-concurrency:receive-message mailbox :timeout 2)
while it
do (destructuring-bind (color pos) it
(funcall c color pos))))
image-width))))
(defvar *planets*
'(:mercury 3031/7917
:venus 7520/7917
:earth 7917/7917
:mars 4212/7917))
(defun scene-3
(&optional (*samples-per-pixel* 10) (image-width 400) (max-depth 50) (rows nil rows-p))
(let* ((world (list (sphere #(-2.25 0 -2)
(* 0.5 (getf *planets* :mercury))
nil
(metal-material #(0.8 0.8 0)))
(sphere #(-0.75 0 -2)
(* 0.5 (getf *planets* :venus))
nil
(metal-material #(0.0 0.8 0)))
(sphere #(0.75 0 -2)
(* 0.5 (getf *planets* :earth))
nil
(metal-material #(0.0 0.0 0.8)))
(sphere #(2.25 -0 -2)
(* 0.5 (getf *planets* :mars))
nil
(metal-material #(0.8 0.0 0.0)))))
(aspect-ratio 16/9)
(image-height (* (floor (/ image-width aspect-ratio))))
(camera (camera)))
(let ((mailbox (sb-concurrency:make-mailbox)))
(loop for j in (if rows-p
rows
(shuffle (loop for x from 0 to image-height collect x)))
do
(sb-concurrency:send-message
(aref *thread-queues*
(mod j
(length *thread-queues*)))
(list *samples-per-pixel*
j image-width
image-height camera
world max-depth
(lambda (a b)
(sb-concurrency:send-message
mailbox
(list a b))))))
(write-colors nil
(lambda (c)
(loop with messages = 0
for it = (sb-concurrency:receive-message mailbox :timeout 2)
while it
do (destructuring-bind (color pos) it
(funcall c color pos))))
image-width))))
(defun scene-4
(&optional (*samples-per-pixel* 10) (image-width 400) (max-depth 50) (rows nil rows-p))
(let* ((world (append (loop for ti from 0 by (/ pi 7)
for x from 0
repeat 20
collect
(sphere
(vector (- (* 2 (sin ti)) 1)
(- (* 2 (cos ti)) 1)
(+ -0.5 (* -0.3 x)))
0.25
nil
(case (random 3)
(0 (metal-material (vector (/ (mod (* 20 x)
256)
256d0)
(/ (mod (* 20 x)
256)
256d0)
(/ (mod (* 20 x)
256)
256d0))))
(1 (lambertian-material (vector (/ (mod (* 20 x)
256)
256d0)
(/ (mod (* 20 x)
256)
256d0)
(/ (mod (* 20 x)
256)
256d0))))
(2 (dielectric-material (rand-min-max 1.4 2.5)
(rand-min-max 0 0.2))))))
(loop for ti from 0 by (/ pi 7)
for x from 0
repeat 20
collect
(sphere
(vector (- (sin (+ ti (/ pi 14))) 0.5)
(- (cos (+ ti (/ pi 14))) 0.5)
(+ -0.5 (* -0.3 x)))
0.25
nil
(case (random 3)
(0 (metal-material (vector (/ (mod (* 20 x)
256)
256d0)
(/ (mod (* 20 x)
256)
256d0)
(/ (mod (* 20 x)
256)
256d0))))
(1 (lambertian-material (vector (/ (mod (* 20 x)
256)
256d0)
(/ (mod (* 20 x)
256)
256d0)
(/ (mod (* 20 x)
256)
256d0))))
(2 (dielectric-material (rand-min-max 1.4 2.5)
(rand-min-max 0 0.2)))))))
#+(or)
(list
(sphere #(-0.0 0 -1) 0.2
#(0 0 0)
(metal-material
#(0.8 0.6 0.2)))
(sphere #(0 -100.5 -1.5) 100
#(0.5 0.5 0.5)
(lambertian-material #(0.8 0.8 0.0)))))
(aspect-ratio 16/9)
(image-height (* (floor (/ image-width aspect-ratio))))
(camera (camera)))
(let ((mailbox (sb-concurrency:make-mailbox)))
(loop for j in (if rows-p
rows
(shuffle (loop for x from 0 to image-height collect x)))
do
(sb-concurrency:send-message
(aref *thread-queues*
(mod j
(length *thread-queues*)))
(list *samples-per-pixel*
j image-width
image-height camera
world max-depth
(lambda (a b)
(sb-concurrency:send-message
mailbox
(list a b))))))
(write-colors nil
(lambda (c)
(loop with messages = 0
for it = (sb-concurrency:receive-message mailbox :timeout 2)
while it
do (destructuring-bind (color pos) it
(funcall c color pos))))
image-width))))
|
| 96842cff | (defun sample-image (out)
(let ((image-width 256)
(image-height 256))
(alexandria:with-output-to-file (s out :if-exists :supersede)
(call-with-ppm-header
s (make-size :width image-width :height image-height)
(lambda (s)
(write-colors
s (lambda (c)
(loop for j from (1- image-height) downto 0
do (format *trace-output*
"~&Scanlines remaining: ~d ~s~%"
j
(local-time:now))
do
(loop for i from 0 below image-width
collect
(let* ((r (/ (* i 1.0d0)
(1- image-width)))
(g (/ (* j 1.0d0)
(1- image-height)))
(b 0.15d0))
(funcall c (make-color :r r
:g g
:b b))))))
image-width))
(1- #.(expt 2 8))))))
|
| 6b17e8ac |
#+(or)
((list 'quote
(loop for ti from 0 by (/ pi 7)
for x from 0
repeat 20
collect (list (vector (- (* 2 (sin ti)) 1)
(- (* 2 (cos ti)) 1)
(+ -0.2 (* -0.3 x)))
0.25
nil
(list (vector (/ (mod (* 20 x)
256)
256d0)
(/ (mod (* 20 x)
256)
256d0)
(/ (mod (* 20 x)
256)
256d0))))))
'((#(-1.0 1.0 -0.2) 0.25 NIL)
(#(-0.13223252176488376d0 0.8019377358048383d0 -0.5) 0.25 NIL)
(#(0.5636629649360596d0 0.2469796037174672d0 -0.8) 0.25 NIL)
(#(0.9498558243636472d0 -0.5549581320873711d0 -1.1) 0.25 NIL)
(#(0.9498558243636472d0 -1.4450418679126287d0 -1.4000001) 0.25 NIL)
(#(0.5636629649360598d0 -2.2469796037174667d0 -1.7) 0.25 NIL)
(#(-0.13223252176488354d0 -2.801937735804838d0 -2.0) 0.25 NIL)
(#(-0.9999999999999998d0 -3.0d0 -2.3000002) 0.25 NIL)
(#(-1.8677674782351161d0 -2.801937735804838d0 -2.6000001) 0.25 NIL)
(#(-2.5636629649360594d0 -2.246979603717467d0 -2.9) 0.25 NIL)
(#(-2.949855824363647d0 -1.4450418679126291d0 -3.2) 0.25 NIL)
(#(-2.949855824363647d0 -0.5549581320873715d0 -3.5000002) 0.25 NIL)
(#(-2.56366296493606d0 0.24697960371746674d0 -3.8000002) 0.25 NIL)
(#(-1.8677674782351166d0 0.8019377358048381d0 -4.1) 0.25 NIL)
(#(-1.0000000000000004d0 1.0d0 -4.4) 0.25 NIL)
(#(-0.1322325217648842d0 0.8019377358048385d0 -4.7) 0.25 NIL)
(#(0.5636629649360592d0 0.2469796037174674d0 -5.0) 0.25 NIL)
(#(0.949855824363647d0 -0.5549581320873707d0 -5.3) 0.25 NIL)
(#(0.9498558243636475d0 -1.4450418679126282d0 -5.6) 0.25 NIL)
(#(0.56366296493606d0 -2.2469796037174667d0 -5.9) 0.25 NIL))
(/ 1960 60.0)
)
|