Duration: 0:00

20 views

1

In this sketch, the core visual effect is driven by the pow function, commonly used in GLSL. pow(x, y) returns x raised to the power of y, and it's especially useful for modifying the contrast or shape of waveforms. Functions like sin and cos output values in the range of −1 to 1, but applying pow—for example, f = pow(sin(...), 3.0)—sharpens the peaks and softens the valleys, giving the wave a more dynamic, energetic feel. This type of nonlinear transformation adds character to otherwise uniform oscillations. When applied to values normalized between 0 and 1, pow can also enhance gradients or emphasize brightness. In GLSL, it’s frequently used for light falloff, glow intensity, and general tonal control. Visualizing pow(sin(x), n) in Graphtoy helps clarify how the shape changes depending on the exponent. For adding expressive form to simple waves, pow is a versatile and powerful tool.