Load image and get pixel value

OPENRNDR Beginners
1

After loading an image, how do I access the pixel color at some coordinate?
For example, it is easy in processing: Reference / Processing.org

I was not able to find this in the guide (Images - OPENRNDR GUIDE)
thanks.

2

Here’s an example on how to do it:

val image = loadImage("data/images/pm5544.png")
val shadow = image.shadow

shadow.download()  // this is how you get hold of the pixel values

extend {
    for (x in 0 until 76) {
        for (y in 0 until 57) {
            drawer.stroke = null
            drawer.fill = shadow[((x / 76.0) * image.effectiveWidth).roundToInt(), ((y / 57.0) * image.effectiveHeight).roundToInt()]
            drawer.rectangle(x * 10.0, y * 10.0, 10.0, 10.0)
        }
    }
}
1 Like
3

Thank you, the shadow was what I needed.