What is the best way to make a textured quad perfectly fill the entire frustum of an orthographic camera in three.js?

How can I effectively fill the frustum of an orthographic camera with a texture quad without leaving gaps on the sides or above where the scene background (GREEN) shows?

https://i.sstatic.net/LfIfX.png

Answer №1

To ensure that the x-scale of your square is in proportion to the ratio between viewport width and height, you can follow this code snippet. Assuming you are using a standard plane and the window object for canvas sizing:

const aspectRatio = window.innerWidth / window.innerHeight;
plane.scale.x = aspectRatio;

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