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How to display 250k cells in a grid.


MrJackson
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I need to display 250k  cells/rectangles at once, when drawing more than 20k rectangles, the frame rate drops below 30fps.

I have nothing running once the grid is drawn, yet the fps stays low, not sure why that is. I would also need to update some of the cell color once in a while.

I have tried using lines, instead of rectangles (vertical and horizontal lines to form a grid), but performance seems to be about the same.

Code: https://playcode.io/638898/

Assuming drawing this many rectangles are not currently possible at 30fps, what would be some other alternatives? 

Thanks.

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