Using water as green screen

Question

so I had this idea but inorder to do it, I need to have water as a green screen. (Because I wanted to make the image move like water). So I was thinking of using dye to color the water and key that color out in premiere pro but its not working that well.

Is there any alternative to this. Or even an effect in premiere or after effect that let's you move images like the flow of water?

Answer 1

Take a look at using noise turbulence to displace the image. You can do this in after effects. There are lots of good tutorials on it. I recommend this one:

Maybe add some images so we can see what you have and what you’re going for.

Answer 2

You can make an image move like water by using a displacement map. This will warp the image as if the folds in the surface of the water are refracting the light as it passes through. For better results, you'd also want a separate map for reflection and/or specularity on top of the water surface. Here's an example in Blackmagic Fusion. If you copy the code text here, and paste it into the Node graph of fusion, it'll show up as a working composition. Here's what the result looks like. Of course, you'll need to supply your own footage, but you can examine this setup to see how it works.

{
Tools = ordered() {
    MediaIn1 = MediaIn {
        ExtentSet = true,
        CustomData = {
            MediaProps = {
                MEDIA_HEIGHT = 2160,
                MEDIA_LAYERS_IN_OUT_LIST = {
                    {
                        0,
                        24
                    }
                },
                MEDIA_MARK_IN = 0,
                MEDIA_MARK_OUT = 23,
                MEDIA_NAME = "Fusion Clip 1",
                MEDIA_NUM_FRAMES = 24,
                MEDIA_NUM_LAYERS = 1,
                MEDIA_PAR = 1,
                MEDIA_SRC_FRAME_RATE = 23.976023976024,
                MEDIA_START_FRAME = 0,
                MEDIA_WIDTH = 4096
            },
        },
        Inputs = {
            GlobalOut = Input { Value = 23, },
            Layer = Input { Value = "0", },
            ClipTimeEnd = Input { Value = 23, },
            ["Gamut.SLogVersion"] = Input { Value = FuID { "SLog2" }, },
        },
        ViewInfo = OperatorInfo { Pos = { 114.524, 26.8857 } },
    },
    TimeSpeed1 = TimeSpeed {
        Inputs = {
            Speed = Input { Value = 5, },
            Input = Input {
                SourceOp = "MediaIn2",
                Source = "Output",
            },
        },
        ViewInfo = OperatorInfo { Pos = { 191.735, 135.686 } },
    },
    Displace1 = Displace {
        Inputs = {
            UseGPU = Input { Value = 0, },
            Offset = Input { Value = -0.445, },
            RefractionStrength = Input { Value = 0.95, },
            LightPower = Input { Value = 3, },
            Spread = Input { Value = 1.228, },
            LightChannel = Input { Value = 5, },
            Input = Input {
                SourceOp = "MediaIn1",
                Source = "Output",
            },
            Foreground = Input {
                SourceOp = "TimeSpeed1",
                Source = "Output",
            },
        },
        ViewInfo = OperatorInfo { Pos = { 290.267, 56.7689 } },
    },
    MediaIn2 = MediaIn {
        ExtentSet = true,
        CustomData = {
            MediaProps = {
                MEDIA_FORMAT_TYPE = "QuickTime",
                MEDIA_HEIGHT = 360,
                MEDIA_MARK_IN = 0,
                MEDIA_MARK_OUT = 449,
                MEDIA_NAME = "122253798-animated-background-abstract-c.mp4",
                MEDIA_NUM_FRAMES = 450,
                MEDIA_NUM_LAYERS = 1,
                MEDIA_PAR = 1,
                MEDIA_PATH = "/Users/jasonconrad/Movies/122253798-animated-background-abstract-c.mp4",
                MEDIA_SRC_FRAME_RATE = 30,
                MEDIA_START_FRAME = 0,
                MEDIA_WIDTH = 640
            },
        },
        Inputs = {
            GlobalOut = Input { Value = 449, },
            MediaID = Input { Value = "87a9779e-8ba3-47cc-a30d-7b1cbf3b3ff2", },
            Layer = Input { Value = "", },
            ClipTimeEnd = Input { Value = 449, },
            ["Gamut.SLogVersion"] = Input { Value = FuID { "SLog2" }, },
        },
        ViewInfo = OperatorInfo { Pos = { 134.151, 185.76 } },
    },
    Merge1 = Merge {
        CtrlWZoom = false,
        Inputs = {
            Background = Input {
                SourceOp = "Displace1",
                Source = "Output",
            },
            Foreground = Input {
                SourceOp = "TimeSpeed1",
                Source = "Output",
            },
            Size = Input { Value = 6.6, },
            SubtractiveAdditive = Input { Value = 0.118, },
            Gain = Input { Value = 0.15, },
            PerformDepthMerge = Input { Value = 0, },
        },
        ViewInfo = OperatorInfo { Pos = { 468.84, 64.6124 } },
    },
    MediaOut1 = MediaOut {
        Inputs = {
            Index = Input { Value = "0", },
            Input = Input {
                SourceOp = "Merge1",
                Source = "Output",
            },
        },
        ViewInfo = OperatorInfo { Pos = { 653.863, 63.2301 } },
    }
},
ActiveTool = "Merge1"

}