68 lines
1.4 KiB
Common Lisp
68 lines
1.4 KiB
Common Lisp
(include "./materials.lisp")
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(set 's1
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(sphere
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(point 0 1 0) 1 blue))
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(set 's2
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(sphere
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(point 2 0.5 2) 0.5 green))
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(set 'mirror-dome
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(sphere
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(point 0 -17 0)
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30 dark-mirror))
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(defun spiral-sphere (i n t)
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(sphere
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(progn
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(point
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(* 2 (cos (/ (* i 6.2) n)))
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(+ 0.5 (* 0.3 (cos (+ (/ (* i 6.2) n) (/ t 5.0)))))
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(* 2 (sin (/ (* i 6.2) n))))
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)
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0.2 red))
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(defun spiral (scn i n t)
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(if (< i n)
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(scene-add
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(spiral scn (+ i 1) n t)
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(spiral-sphere i n t))
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scn))
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(set 'p1
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(checkerboard
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(point 0 0 0)
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(vector 0 1 0)
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black white 0.5
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(vector 0.5 0 1)))
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(set 'l1 (light (point 3 10 5) (color 1 1 1)))
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(set 'l2 (light (point 2 10 5) (color 1 1 1)))
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(set 'scn-base (scene
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(color 0.1 0.1 0.1)
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'(s1 s2 p1 mirror-dome)
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'(l1 l2)))
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(set 'cam (camera (point 0 3 6) (point 0 0 0) (vector 0 1 0) 40 1920 1080))
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(defun scene-fn (t)
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(spiral scn-base 0 30 t))
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(defun cam-fn (t c)
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(let '((pos . (point -3 0.5 8))
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(cnt . (point 0 0 0))
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(to . (point -3 0.5 -8))
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(up . (vector 0 1 0))
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(fovy . 80)
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(pct . (/ t 300.0)))
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(let '((tpos . (vadd pos (vmul (vsub to pos) pct)))
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(tfovy . (+ fovy (* 40 pct)))
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)
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(camera-reposition c tpos cnt up tfovy)
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)
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))
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(render-animation cam "demo-animation.mp4" scene-fn cam-fn 400 30 7 2)
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