Skip to content

Instantly share code, notes, and snippets.

@nujabes

nujabes/20150214 hansumo WebGL 0.ipynb

Last active August 29, 2015 14:15
Show Gist options
  • Save nujabes/da0d90ef179aa9073052 to your computer and use it in GitHub Desktop.
Save nujabes/da0d90ef179aa9073052 to your computer and use it in GitHub Desktop.
Download ZIP
Display the source blob
Display the rendered blob
Raw
20150214 hansumo WebGL 0.ipynb
{
"metadata": {
"name": "",
"signature": "sha256:d9b18bd67ccc31d7e0a8aca5a4ae7e3bbee25e82ac845045e0d2688e454ef8bf"
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "code",
"collapsed": false,
"input": [
"%%html\n",
"<canvas id=\"ex1\"></canvas>\n",
"<script>\n",
"var g = document.querySelector('#ex1').getContext('2d');\n",
"g.canvas.width = 200;\n",
"g.canvas.height = 200;\n",
"\n",
"g.fillStyle = 'yellow';\n",
"g.fillRect(0, 0, g.canvas.width, g.canvas.height);\n",
"</script>"
],
"language": "python",
"metadata": {},
"outputs": [
{
"html": [
"<canvas id=\"ex1\"></canvas>\n",
"<script>\n",
"var g = document.querySelector('#ex1').getContext('2d');\n",
"g.canvas.width = 200;\n",
"g.canvas.height = 200;\n",
"\n",
"g.fillStyle = 'yellow';\n",
"g.fillRect(0, 0, g.canvas.width, g.canvas.height);\n",
"</script>"
],
"metadata": {},
"output_type": "display_data",
"text": [
"<IPython.core.display.HTML at 0x10913c5d0>"
]
}
],
"prompt_number": 20
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"%%html\n",
"<canvas id=\"ex2\"></canvas>\n",
"<script>\n",
"var g = document.querySelector('#ex2').getContext('2d');\n",
"g.canvas.width = 200;\n",
"g.canvas.height = 200;\n",
"\n",
"var im = g.getImageData(0, 0, g.canvas.width, g.canvas.height);\n",
"var render = function(){\n",
" for(var iy = 0; iy < g.canvas.height; iy++){\n",
" for(var ix = 0; ix < g.canvas.width; ix++){\n",
" var i = iy * g.canvas.width + ix;\n",
" im.data[4*i+0] = 255;\n",
" im.data[4*i+1] = 0;\n",
" im.data[4*i+2] = 0;\n",
" im.data[4*i+3] = 255;\n",
" }\n",
" }\n",
" g.putImageData(im, 0, 0);\n",
"}\n",
"render();\n",
"</script>"
],
"language": "python",
"metadata": {},
"outputs": [
{
"html": [
"<canvas id=\"ex2\"></canvas>\n",
"<script>\n",
"var g = document.querySelector('#ex2').getContext('2d');\n",
"g.canvas.width = 200;\n",
"g.canvas.height = 200;\n",
"\n",
"//g.fillStyle = 'yellow';\n",
"//g.fillRect(0, 0, g.canvas.width, g.canvas.height);\n",
"var im = g.getImageData(0, 0, g.canvas.width, g.canvas.height);\n",
"var render = function(){\n",
" for(var iy = 0; iy < g.canvas.height; iy++){\n",
" for(var ix = 0; ix < g.canvas.width; ix++){\n",
" var i = iy * g.canvas.width + ix;\n",
" im.data[4*i+0] = 255;\n",
" im.data[4*i+1] = 0;\n",
" im.data[4*i+2] = 0;\n",
" im.data[4*i+3] = 255;\n",
" }\n",
" }\n",
" g.putImageData(im, 0, 0);\n",
"}\n",
"render();\n",
"</script>"
],
"metadata": {},
"output_type": "display_data",
"text": [
"<IPython.core.display.HTML at 0x10913cad0>"
]
}
],
"prompt_number": 19
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"%%html\n",
"<canvas id=\"ex3\"></canvas>\n",
"<script>\n",
"var g = document.querySelector('#ex3').getContext('2d');\n",
"g.canvas.width = 200;\n",
"g.canvas.height = 200;\n",
"\n",
"var im = g.getImageData(0, 0, g.canvas.width, g.canvas.height);\n",
"var render = function(){\n",
" for(var iy = 0; iy < g.canvas.height; iy++){\n",
" var fy = iy / (g.canvas.height - 1);\n",
" for(var ix = 0; ix < g.canvas.width; ix++){\n",
" var i = iy * g.canvas.width + ix;\n",
" var fx = ix / (g.canvas.width - 1);\n",
" im.data[4*i+0] = Math.floor(255 * Math.sin(fx * Math.PI * 12));\n",
" im.data[4*i+1] = 0;\n",
" im.data[4*i+2] = 0;\n",
" im.data[4*i+3] = 255;\n",
" }\n",
" }\n",
" g.putImageData(im, 0, 0);\n",
" }\n",
"render();\n",
"</script>"
],
"language": "python",
"metadata": {},
"outputs": [
{
"html": [
"<canvas id=\"ex3\"></canvas>\n",
"<script>\n",
"var g = document.querySelector('#ex3').getContext('2d');\n",
"g.canvas.width = 200;\n",
"g.canvas.height = 200;\n",
"\n",
"//g.fillStyle = 'yellow';\n",
"//g.fillRect(0, 0, g.canvas.width, g.canvas.height);\n",
"var im = g.getImageData(0, 0, g.canvas.width, g.canvas.height);\n",
"var render = function(){\n",
" for(var iy = 0; iy < g.canvas.height; iy++){\n",
" var fy = iy / (g.canvas.height - 1);\n",
" for(var ix = 0; ix < g.canvas.width; ix++){\n",
" var i = iy * g.canvas.width + ix;\n",
" var fx = ix / (g.canvas.width - 1);\n",
" im.data[4*i+0] = Math.floor(255 * Math.sin(fx * Math.PI * 12));\n",
" im.data[4*i+1] = 0;\n",
" im.data[4*i+2] = 0;\n",
" im.data[4*i+3] = 255;\n",
" }\n",
" }\n",
" g.putImageData(im, 0, 0);\n",
" }\n",
"render();\n",
"</script>"
],
"metadata": {},
"output_type": "display_data",
"text": [
"<IPython.core.display.HTML at 0x109153ed0>"
]
}
],
"prompt_number": 36
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# SHADING LANGUAGE"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"%%html\n",
"<canvas id=\"ex4\"></canvas>\n",
"<script>\n",
"var g = document.querySelector('#ex4').getContext('2d');\n",
"g.canvas.width = 200;\n",
"g.canvas.height = 200;\n",
"\n",
"var im = g.getImageData(0, 0, g.canvas.width, g.canvas.height);\n",
"\n",
"var shader = function(x, y){\n",
" return Math.sin(x * Math.PI * 5);\n",
"}\n",
"\n",
"var render = function(){\n",
" for(var iy = 0; iy < g.canvas.height; iy++){\n",
" var fy = iy / (g.canvas.height - 1);\n",
" for(var ix = 0; ix < g.canvas.width; ix++){\n",
" var i = iy * g.canvas.width + ix;\n",
" var fx = ix / (g.canvas.width - 1);\n",
" var c = shader(fx, fy);\n",
" im.data[4*i+0] = Math.floor(255 * c);\n",
" im.data[4*i+1] = Math.floor(255 * c);\n",
" im.data[4*i+2] = Math.floor(255 * c);\n",
" im.data[4*i+3] = 255;\n",
" }\n",
" }\n",
" g.putImageData(im, 0, 0);\n",
"}\n",
"render();\n",
"</script>"
],
"language": "python",
"metadata": {},
"outputs": [
{
"html": [
"<canvas id=\"ex4\"></canvas>\n",
"<script>\n",
"var g = document.querySelector('#ex4').getContext('2d');\n",
"g.canvas.width = 200;\n",
"g.canvas.height = 200;\n",
"\n",
"var im = g.getImageData(0, 0, g.canvas.width, g.canvas.height);\n",
"\n",
"var shader = function(x, y){\n",
" return Math.sin(x * Math.PI * 5);\n",
"}\n",
"\n",
"var render = function(){\n",
" for(var iy = 0; iy < g.canvas.height; iy++){\n",
" var fy = iy / (g.canvas.height - 1);\n",
" for(var ix = 0; ix < g.canvas.width; ix++){\n",
" var i = iy * g.canvas.width + ix;\n",
" var fx = ix / (g.canvas.width - 1);\n",
" var c = shader(fx, fy);\n",
" im.data[4*i+0] = Math.floor(255 * c);\n",
" im.data[4*i+1] = Math.floor(255 * c);\n",
" im.data[4*i+2] = Math.floor(255 * c);\n",
" im.data[4*i+3] = 255;\n",
" }\n",
" }\n",
" g.putImageData(im, 0, 0);\n",
"}\n",
"render();\n",
"</script>"
],
"metadata": {},
"output_type": "display_data",
"text": [
"<IPython.core.display.HTML at 0x109153cd0>"
]
}
],
"prompt_number": 39
},
{
"cell_type": "code",
"collapsed": false,
"input": [],
"language": "python",
"metadata": {},
"outputs": []
}
],
"metadata": {}
}
]
}
Display the source blob
Display the rendered blob
Raw
20150214 hansumo WebGL 1.ipynb
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment