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enijar/in-bounds.glsl

Created January 20, 2022 14:02
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GLSL function to check if a point/mouse is inside a box
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in-bounds.glsl
bool inBounds(vec2 mouse, vec2 uv, float width, float height) {
float mx = mouse.x;
float my = 1.0 - mouse.y;
bool inX = mx >= uv.x - width && mx <= uv.x + width;
bool inY = my >= uv.y - height && my <= uv.y + height;
return inX && inY;
}
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enijar commented Jan 20, 2022

Example usage: https://codesandbox.io/s/glsl-shader-playground-cbtvy?file=/src/components/plane/fragment.glsl

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