attempt to index global 'App' (a nil value)??

[metaldc4life]

Hi,

I am trying out this water in my game:

 

 

http://www.leadwerks.com/werkspace/files/file/355-ocean-refractive-depth-shader-le25/

 

 

 

but I get this error for some reason?

 

attempt to index global 'App' (a nil value)

 

on this line:

 

refractionbuffer = Buffer:Create(App.context:GetWidth(),App.context:GetHeight(),1,1);

 

can someone please help me?

 

Thank You!

[Rick]

Guessing you have a C++ project with this? The App variable only exists in a Lua application so this might have only been meant for a Lua app at the time of creation (standard edition probably wasn't even out at this time).

 

Can probably change it with Context:GetCurrent().

[metaldc4life]

where would I place what you suggested?

 

yes I do have a c++ project with it.. =)

[Rick]

local context = Context:GetCurrent()

refractionbuffer = Buffer:Create(context:GetWidth(),context:GetHeight(),1,1);

 

So the context gets created in the App "class" in a Lua application and the App class is global to the Lua project so you can just do App.context to get it. However in a C++ project there is no App class so instead you have to use Context:GetCurrent() to get the current context in Lua, which in most all applications there is only ever one context anyway.

[metaldc4life]

ahhh...

I know what you mean I will try that and see..

[metaldc4life]

so far, I think your method may have worked but I get an error of this:

 

refractionbuffer:SetColorTexture(tex)

 

is it maybe because I didn't apply any texture or anything?

[shadmar]

that link you posted at the top, links to a Leadwerks 2.5 shader which unfortunately won't work in 3.2.

[metaldc4life]

oh ok, thanks