( LUA ) Looking for SetOrder() example

[Alienhead]

I'm looking for an example of a sprite rendering in front of the 3d world?  My attempts have failed 😦

[Alienhead]

Since I have yet to get a sprite to render in front of 3d objects I was going to use the UI system. But now I read this system is getting wiped in place of a new one? Is this verified? would I be better off to not use the UI system until 1.0 ?

 

 

[Dreikblack]

1 hour ago, Alienhead said:

this system is getting wiped in place of a new one? I

It's not. Just will be 3D camera instead of world and other things should stay like they are now afaik (and no SetRenderLayers will be needed for UI). Internally there will be bigger changes, but ideally it will affect only bugs (by fixing them indirectly) and not API beside CreateInterface

ui = CreateInterface(camera, font, frameSize)

[Dreikblack]

SetOrder, GUI and Sprite with ordering example

local displays = GetDisplays()
local window = CreateWindow("Ultra Engine", 0, 0, 1280, 720, displays[1], WINDOW_CENTER | WINDOW_TITLEBAR)
local world = CreateWorld()
local framebuffer = CreateFramebuffer(window)

local light = CreateBoxLight(world)
light:SetRotation(45, 35, 0)
light:SetRange(-10, 10)
light:SetColor(2)
local model = CreateBox(world)
model:SetColor(0, 0, 1)

local font = LoadFont("Fonts/arial.ttf")
local ui = CreateInterface(world, font, framebuffer.size)
ui:SetRenderLayers(2)
ui.background:SetColor(0.0, 0.0, 0.0, 0.0)
local sz = ui.background:ClientSize()
local sz = ui.background:ClientSize()
local button = CreateButton("Button", sz.x / 2 - 75, sz.y / 2 - 15, 150, 30, ui.background)

local uiCamera = CreateCamera(world, PROJECTION_ORTHOGRAPHIC)
uiCamera:SetPosition(framebuffer.size.x * 0.5, framebuffer.size.y * 0.5, 0)
uiCamera:SetRenderLayers(2)
uiCamera:SetClearMode(CLEAR_DEPTH);
--higher number than other cameras means drawing later than other camera, by default 0 and order defined by creation order
uiCamera:SetOrder(1)

--100 width, 10 height
local sprite = CreateSprite(world, 100, 10)
sprite:SetColor(1, 0, 0)
--z/depth - to make appear behind GUI and correct order relativly other sprites
sprite:SetPosition(sz.x / 2, sz.y / 2, 0.99901)
--to display in 2D camera
sprite:SetRenderLayers(2)

local sprite2 = CreateSprite(world, 100, 10)
sprite2:SetColor(0, 1, 0)
--bigger depth means it will be behind first sprite
sprite2:SetPosition(sz.x / 2 + 50, sz.y / 2, 0.99902)
sprite2:SetRenderLayers(2)

local camera = CreateCamera(world)
camera:SetClearColor(0.125)
camera:SetPosition(0, 0, -4)

while not window:KeyDown(KEY_ESCAPE) do
    while (PeekEvent()) do
        local ev = WaitEvent()
        if (ev.id == EVENT_WINDOWCLOSE and ev.source == window) then
            return 0
        else
            ui:ProcessEvent(ev)
        end
    end
    model:Turn(0, 1, 0)
    world:Update()
    world:Render(framebuffer)
end