local shader

function applyNeon()
    local veh = getPedOccupiedVehicle(localPlayer)
    if not veh then
        outputChatBox("Entre em um veiculo primeiro!")
        return
    end

    if isElement(shader) then
        destroyElement(shader)
    end

    shader = dxCreateShader("vehicle.fx")

    if shader then
        engineApplyShaderToWorldTexture(shader, "*", veh)
        outputChatBox("Neon Demo aplicado!")
    end
end

addCommandHandler("neondemo", applyNeon)

addEventHandler("onClientRender", root,
function()
    if shader then
        dxSetShaderValue(shader, "gTime", getTickCount() / 1000)
    end
end)