Learn to create a checkerboard pattern using floor() and mod(), and understand how to discretize UV coordinates into grid-based logic.
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To make a grid, scale and floor UV coordinates:
`glsl
float x = floor(vUv.x * 8.0);
float y = floor(vUv.y * 8.0);
`
This splits the screen into an 8×8 grid.
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`glsl
float pattern = mod(x + y, 2.0);
`
- Even sum: 0 → white
- Odd sum: 1 → black
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`glsl
vec3 color = mix(vec3(1.0), vec3(0.0), pattern);
`
This creates a simple and efficient checkerboard.