Adam Khoury

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Rendering Shadows on Canvas

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Adam Khoury
In this exercise you can learn the JavaScript properties behind creating shadow effects on the canvas element. <!DOCTYPE html> <html> <head> <style> body{ margin:10px; background:#666; } #my_canvas{ background:#FFF; border:#000 1px solid; } </style> <script> function draw(){ var ctx = document.getElementById('my_canvas').getContext('2d'); // shadowColor = color || hex || rgba() // shadowOffsetX = positive or negative number // shadowOffsetY = positive or negative number // shadowBlur = positive number ctx.fillStyle = '#FC0'; ctx.fillRect(50, 50, 100, 100); ctx.shadowColor = 'rgba(0,0,0,1)'; ctx.shadowOffsetX = 2; ctx.shadowOffsetY = 2; ctx.shadowBlur = 3; ctx.fillRect(200, 50, 100, 100); } window.onload = draw; </script> </head> <body> <canvas id="my_canvas" width="500" height="350"></canvas> </body> </html>