Mtasa-blue: dxSetRenderTarget clears drawing queue when called in onClientPreRender

[LosFaul]

Describe the bug

using dxSetRenderTarget(...) clears the drawing quene when called in onClientPreRender event
this can also break the drawing of other resources too

To reproduce

local renderTarget = dxCreateRenderTarget(100, 100, true)

addEventHandler("onClientPreRender", root,
    function()
        dxDrawRectangle(10, 300, 100, 100) --> not drawn
        dxDrawRectangle(110, 300, 100, 100) --> not drawn
        dxDrawRectangle(210, 300, 100, 100) --> not drawn

        dxSetRenderTarget(renderTarget, true)
        dxSetRenderTarget()

        dxDrawRectangle(10, 400, 100, 100) --> drawn
        dxDrawRectangle(110, 400, 100, 100) --> drawn
        dxDrawRectangle(210, 400, 100, 100) --> drawn
    end
)

Expected behaviour

dxSetRenderTarget shouldn't clear the entire drawing quene when called in onClientPreRender

Version

Multi Theft Auto v1.5.8-release-20670

[Woovie]

I cannot replicate. Code:

function render()
    dxDrawRectangle(250, 200, 50, 50, 0xFF00FF00)-- Green

    dxSetRenderTarget(renderTarget, true)
    dxSetRenderTarget()

    dxDrawRectangle(250, 250, 50, 50, 0xFFAAFF00)-- Lime Green
end

function prerender()
    dxDrawRectangle(200, 200, 50, 50, 0xFFFF0000)-- Red

    dxSetRenderTarget(renderTarget, true)
    dxSetRenderTarget()

    dxDrawRectangle(200, 250, 50, 50, 0xFFFFAA00)-- Orange
end

local renderTarget = dxCreateRenderTarget(50, 50, true)

addEventHandler("onClientRender", root, render)
addEventHandler("onClientPreRender", root, prerender)

Ingame:

[LosFaul]

I cannot replicate. Code:

function render()
    dxDrawRectangle(250, 200, 50, 50, 0xFF00FF00)-- Green

    dxSetRenderTarget(renderTarget, true)
    dxSetRenderTarget()

    dxDrawRectangle(250, 250, 50, 50, 0xFFAAFF00)-- Lime Green
end

function prerender()
    dxDrawRectangle(200, 200, 50, 50, 0xFFFF0000)-- Red

    dxSetRenderTarget(renderTarget, true)
    dxSetRenderTarget()

    dxDrawRectangle(200, 250, 50, 50, 0xFFFFAA00)-- Orange
end

local renderTarget = dxCreateRenderTarget(50, 50, true)

addEventHandler("onClientRender", root, render)
addEventHandler("onClientPreRender", root, prerender)

because your renderTarget is a nil value
you can't define a local variable after the functions
or it is invisible for the functions

[Pirulax]

Can confirm with the above code fixed:

Code

local renderTarget = dxCreateRenderTarget(50, 50, true)

function render()
    dxDrawRectangle(250, 200, 50, 50, 0xFF00FF00)-- Green

    dxSetRenderTarget(renderTarget, true)
    dxSetRenderTarget()

    dxDrawRectangle(250, 250, 50, 50, 0xFFAAFF00)-- Lime Green
end

function prerender()
    dxDrawRectangle(200, 200, 50, 50, 0xFFFF0000)-- Red

    dxSetRenderTarget(renderTarget, true)
    dxSetRenderTarget()

    dxDrawRectangle(200, 250, 50, 50, 0xFFFFAA00)-- Orange
end


addEventHandler("onClientRender", root, render)
addEventHandler("onClientPreRender", root, prerender)

The red rectangle is missing from the top left corner section.
I'll look into the issue. Im lazy.