From 3be6325b1292233fae4817b3b864eca7b9911898 Mon Sep 17 00:00:00 2001 From: Akshay Nair Date: Wed, 3 Jun 2026 23:41:42 +0530 Subject: Add generated images to dir + readme --- README.md | 17 +++++++++++++++++ examples/circle.sql | 18 ------------------ examples/gradient.sql | 12 ------------ examples/mandelbrot.sql | 31 ------------------------------- justfile | 2 +- media/circle.png | Bin 0 -> 547 bytes media/gradient.png | Bin 0 -> 651 bytes media/mandelbrot.png | Bin 0 -> 2748 bytes src/circle.sql | 18 ++++++++++++++++++ src/gradient.sql | 12 ++++++++++++ src/mandelbrot.sql | 31 +++++++++++++++++++++++++++++++ 11 files changed, 79 insertions(+), 62 deletions(-) create mode 100644 README.md delete mode 100644 examples/circle.sql delete mode 100644 examples/gradient.sql delete mode 100644 examples/mandelbrot.sql create mode 100644 media/circle.png create mode 100644 media/gradient.png create mode 100644 media/mandelbrot.png create mode 100644 src/circle.sql create mode 100644 src/gradient.sql create mode 100644 src/mandelbrot.sql diff --git a/README.md b/README.md new file mode 100644 index 0000000..ce3a02e --- /dev/null +++ b/README.md @@ -0,0 +1,17 @@ +# sqlite creative coding + +Generating some visuals with SQL because nobody stopped me + + + + + + +
+

Gradient

+ + 		+

Mandelbrot fractal

+ +
+ diff --git a/examples/circle.sql b/examples/circle.sql deleted file mode 100644 index 46874cc..0000000 --- a/examples/circle.sql +++ /dev/null @@ -1,18 +0,0 @@ -DELETE FROM images WHERE id = 'circle'; -INSERT INTO images (id, width, height) VALUES ('circle', 200, 200) RETURNING id; - -WITH RECURSIVE - image AS (SELECT * FROM images WHERE id = 'circle'), - circle AS (SELECT width/2 AS cx, height/2 AS cy, 80 AS radius FROM image), - horizontal(x) AS - (SELECT width FROM image UNION ALL SELECT x - 1 FROM horizontal WHERE x > 1), - vertical(y) AS - (SELECT height FROM image UNION ALL SELECT y - 1 FROM vertical WHERE y > 1), - _pixels(x, y, r, g, b) AS (SELECT - x, y, - 150, - 255 * MAX(0, MIN(1, (SELECT POW(x - cx, 2) + POW(y - cy, 2) - POW(radius, 2) FROM circle))), - 150 - FROM vertical, horizontal - ) -INSERT INTO pixels (image_id, x, y, r, g, b) SELECT 'circle', x, y, r, g, b FROM _pixels; diff --git a/examples/gradient.sql b/examples/gradient.sql deleted file mode 100644 index f04cdad..0000000 --- a/examples/gradient.sql +++ /dev/null @@ -1,12 +0,0 @@ -DELETE FROM images WHERE id = 'gradient'; -INSERT INTO images (id, width, height) VALUES ('gradient', 200, 200) RETURNING id; - -WITH RECURSIVE - image AS (SELECT * FROM images WHERE id = 'gradient'), - horizontal(x) AS - (SELECT width FROM image UNION ALL SELECT x - 1 FROM horizontal WHERE x > 1), - vertical(y) AS - (SELECT height FROM image UNION ALL SELECT y - 1 FROM vertical WHERE y > 1), - _pixels(x, y, r, g, b) AS - (SELECT x, y, mod(x, 255), mod(y, 255), 100 FROM vertical, horizontal) -INSERT INTO pixels (image_id, x, y, r, g, b) SELECT 'gradient', x, y, r, g, b FROM _pixels; diff --git a/examples/mandelbrot.sql b/examples/mandelbrot.sql deleted file mode 100644 index 1c25461..0000000 --- a/examples/mandelbrot.sql +++ /dev/null @@ -1,31 +0,0 @@ -DELETE FROM images WHERE id = 'mandelbrot'; -INSERT INTO images (id, width, height) VALUES ('mandelbrot', 400, 400) RETURNING id; - -WITH RECURSIVE - image AS (SELECT *, 0.008 AS scale, (width * 5)/7 AS ox, (height / 2) AS oy FROM images WHERE id = 'mandelbrot'), - horizontal(x) AS - (SELECT width FROM image UNION ALL SELECT x - 1 FROM horizontal WHERE x > 1), - vertical(y) AS - (SELECT height FROM image UNION ALL SELECT y - 1 FROM vertical WHERE y > 1), - mando(i, px, py, cx, cy, x, y) AS ( - SELECT 0, 0.0, 0.0, - (SELECT (horizontal.x - ox)*scale FROM image), (SELECT (vertical.y - oy)*scale FROM image), - horizontal.x, vertical.y - FROM vertical, horizontal - UNION ALL - SELECT i + 1, px*px - py*py + cx, 2.0*px*py + cy, cx, cy, x, y FROM mando - WHERE (px*px + py*py) < 4.0 AND i < 20 - ), - mandogrouped(x, y, i) AS (SELECT x, y, max(i) FROM mando GROUP BY x, y), - colors(i, r, g, b) AS ( - SELECT 19, 255, 150, 150 UNION ALL - SELECT 10, 150, 120, 120 UNION ALL - SELECT 7, 50, 100, 100 UNION ALL - SELECT 0 , 0, 50, 50 - ), - _pixels(x, y, r, g, b) AS ( - SELECT x, y, c.r, c.g, c.b - FROM mandogrouped g - JOIN colors c ON c.i = (SELECT max(i) FROM colors WHERE i <= g.i) - ) -INSERT INTO pixels (image_id, x, y, r, g, b) SELECT 'mandelbrot', x, y, r, g, b FROM _pixels; diff --git a/justfile b/justfile index f8f3413..763a6a1 100644 --- a/justfile +++ b/justfile @@ -13,7 +13,7 @@ image file *args: show-image image_id: echo "Displaying {{image_id}}" 1>&2 - ./image.sh {{image_id}} | tee output.ignore.txt | magick display ppm:- + ./image.sh "{{image_id}}" | tee >(magick ppm:- "media/{{image_id}}.png") | magick display ppm:- repl *args: rlwrap sqlite3 "{{DB}}" {{args}} diff --git a/media/circle.png b/media/circle.png new file mode 100644 index 0000000..ca7e334 Binary files /dev/null and b/media/circle.png differ diff --git a/media/gradient.png b/media/gradient.png new file mode 100644 index 0000000..e688715 Binary files /dev/null and b/media/gradient.png differ diff --git a/media/mandelbrot.png b/media/mandelbrot.png new file mode 100644 index 0000000..b2bacf4 Binary files /dev/null and b/media/mandelbrot.png differ diff --git a/src/circle.sql b/src/circle.sql new file mode 100644 index 0000000..46874cc --- /dev/null +++ b/src/circle.sql @@ -0,0 +1,18 @@ +DELETE FROM images WHERE id = 'circle'; +INSERT INTO images (id, width, height) VALUES ('circle', 200, 200) RETURNING id; + +WITH RECURSIVE + image AS (SELECT * FROM images WHERE id = 'circle'), + circle AS (SELECT width/2 AS cx, height/2 AS cy, 80 AS radius FROM image), + horizontal(x) AS + (SELECT width FROM image UNION ALL SELECT x - 1 FROM horizontal WHERE x > 1), + vertical(y) AS + (SELECT height FROM image UNION ALL SELECT y - 1 FROM vertical WHERE y > 1), + _pixels(x, y, r, g, b) AS (SELECT + x, y, + 150, + 255 * MAX(0, MIN(1, (SELECT POW(x - cx, 2) + POW(y - cy, 2) - POW(radius, 2) FROM circle))), + 150 + FROM vertical, horizontal + ) +INSERT INTO pixels (image_id, x, y, r, g, b) SELECT 'circle', x, y, r, g, b FROM _pixels; diff --git a/src/gradient.sql b/src/gradient.sql new file mode 100644 index 0000000..f04cdad --- /dev/null +++ b/src/gradient.sql @@ -0,0 +1,12 @@ +DELETE FROM images WHERE id = 'gradient'; +INSERT INTO images (id, width, height) VALUES ('gradient', 200, 200) RETURNING id; + +WITH RECURSIVE + image AS (SELECT * FROM images WHERE id = 'gradient'), + horizontal(x) AS + (SELECT width FROM image UNION ALL SELECT x - 1 FROM horizontal WHERE x > 1), + vertical(y) AS + (SELECT height FROM image UNION ALL SELECT y - 1 FROM vertical WHERE y > 1), + _pixels(x, y, r, g, b) AS + (SELECT x, y, mod(x, 255), mod(y, 255), 100 FROM vertical, horizontal) +INSERT INTO pixels (image_id, x, y, r, g, b) SELECT 'gradient', x, y, r, g, b FROM _pixels; diff --git a/src/mandelbrot.sql b/src/mandelbrot.sql new file mode 100644 index 0000000..1c25461 --- /dev/null +++ b/src/mandelbrot.sql @@ -0,0 +1,31 @@ +DELETE FROM images WHERE id = 'mandelbrot'; +INSERT INTO images (id, width, height) VALUES ('mandelbrot', 400, 400) RETURNING id; + +WITH RECURSIVE + image AS (SELECT *, 0.008 AS scale, (width * 5)/7 AS ox, (height / 2) AS oy FROM images WHERE id = 'mandelbrot'), + horizontal(x) AS + (SELECT width FROM image UNION ALL SELECT x - 1 FROM horizontal WHERE x > 1), + vertical(y) AS + (SELECT height FROM image UNION ALL SELECT y - 1 FROM vertical WHERE y > 1), + mando(i, px, py, cx, cy, x, y) AS ( + SELECT 0, 0.0, 0.0, + (SELECT (horizontal.x - ox)*scale FROM image), (SELECT (vertical.y - oy)*scale FROM image), + horizontal.x, vertical.y + FROM vertical, horizontal + UNION ALL + SELECT i + 1, px*px - py*py + cx, 2.0*px*py + cy, cx, cy, x, y FROM mando + WHERE (px*px + py*py) < 4.0 AND i < 20 + ), + mandogrouped(x, y, i) AS (SELECT x, y, max(i) FROM mando GROUP BY x, y), + colors(i, r, g, b) AS ( + SELECT 19, 255, 150, 150 UNION ALL + SELECT 10, 150, 120, 120 UNION ALL + SELECT 7, 50, 100, 100 UNION ALL + SELECT 0 , 0, 50, 50 + ), + _pixels(x, y, r, g, b) AS ( + SELECT x, y, c.r, c.g, c.b + FROM mandogrouped g + JOIN colors c ON c.i = (SELECT max(i) FROM colors WHERE i <= g.i) + ) +INSERT INTO pixels (image_id, x, y, r, g, b) SELECT 'mandelbrot', x, y, r, g, b FROM _pixels; 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