context:DrawImage in GUI

[TEPA6ANT]

How painting texture in GUI without the use of widgets or painting texture[Texture:Load()] (not image[gui:LoadImage()]) in Widget:Panel?
 

[Josh]

You would want to use gui:DrawImage(). This will use either 3D rendering or the system 2D drawing commands, depending on how the GUI is being used.

The GUI system does not handle "textures" it handles "images", which can be a texture behind-the-scenes but it is set up to work direct drawing onto windows.

This is being done so that the future editor can use the exact same GUI.

[TEPA6ANT]

I just need to output some textures in the Widget:Panel. And also on them to use special shaders.

[Josh]

The panel script actually already supports images. However, you need to call widget:Redraw() after setting the image to trigger a re-render. I am adding an internal call to make this automatic.

local window = Window:Create()
local context = Context:Create(window)
local gui = GUI:Create(context)
local base = gui:GetBase()
base:SetScript("Scripts/GUI/Panel.lua")

x=20
y=20

widget = Widget:Panel(x,y,400,120,base)
local image = gui:LoadImage("Materials/Common/splash.tex")
widget:SetImage(image)
widget:Redraw()

while true do
        if window:Closed() then return end
        if window:KeyHit(Key.Escape) then return end
        
        context:Sync()
end

As for custom shaders, the GUI system is not as flexible as the general 2D drawing system, and it has no concept of "shaders" right now because it needs to render the same things with the OS 2D drawing commands.