Generating gradients programmatically?

Question

Given 2 rgb colors and a rectangular area, I\'d like to generate a basic linear gradient between the colors. I\'ve done a quick search and the only thing I\'ve been able to

Answer 1

Following up on the execllent answer of David Crow, here's a Kotlin example implementation

fun gradientColor(x: Double, minX: Double, maxX: Double, 
                  from: Color = Color.RED, to: Color = Color.GREEN): Color {
    val range = maxX - minX
    val p = (x - minX) / range

   return Color(
        from.red * p + to.red * (1 - p),
        from.green * p + to.green * (1 - p),
        from.blue * p + to.blue * (1 - p),
        1.0
    )
}