-- Texture image blending animation. This allow animated texture
-- on the selected texture node.
--
-- @description Allow animated texture.
-- @author      Thomas Loockx, slater Lewis
-- @version     0.2

-- get the selected RGB texture node
local tex = octane.project.getSelection()[1]
assert(tex:getProperties().type == octane.NT_IN_TEXTURE, "RGB image node expected")


local startImage = octane.gui.create
{
    type   = octane.gui.componentType.BITMAP,
    image = octane.image.load("C:/octest/imgout/frame006.jpg",0),
    width  = 200,
    height = 200,
}

print (image)

local endImage = octane.gui.create
{
    type   = octane.gui.componentType.BITMAP,
    image = octane.image.load("C:/octest/imgout/frame052.jpg",0),
    width  = 200,
    height = 200,
}


local group = octane.gui.create
{
    type     = octane.gui.componentType.GROUP,
    rows     = 1,
    cols     = 2,
    children = { startImage, endImage },
    padding  = { 10 },
    border   = false,
    inset    = { 5 },
    padding  = { 5 },
}



local window = octane.gui.create
{
    type     = octane.gui.componentType.WINDOW,
    children = { group },
    width    = group:getProperties().width,
    height   = group:getProperties().height,
    border   = false,
    text     = "Animated Texture Sequence",
}

-- normalizes a colour from uint8 to float
---local function normalize(useimage)

---    return image
---end


-- hooks up an animator with the texture.
local function setAnimator(tex, startImage, endImage, nbFrames)

 -- animator will interpolate between these colours
    tex:setAnimator(octane.A_VALUE, { 0 }, { startImage, endImage}, 1)
end


-- Gui handling callback
local function callback()
    setTexAnimator(
        tex, 
        normalize(startImage:getProperties().image),
        normalize(endImage:getProperties().image), 
        25)
end
startImage:updateProperties{ callback = callback }
endImage:updateProperties  { callback = callback }

window:showWindow()