Problem with Z-sort and render to texture

[Genebris]

Material with Z-sort enabled works incorrectly when rendered to a texture. See the screenshot.

Green and grey materials are regular, blue mat has z-sort enabled. Right part of the image is rendered normally, left part is rendered to a texture and drawn on the context.

 

 

You can see that blue cube on the left is visible through the grey cube. I need to have z-sort enabled for my particles with UV animation, but it makes them visible through the walls.

 

Script on the camera in this scene:

function Script:Start()

self.tex = Texture:Create(512,512)

self.cam = Camera:Create()

self.cam:SetRenderTarget(self.tex)

end

 

function Script:PostRender(context)

context:SetBlendMode(Blend.Alpha)

context:DrawImage(self.tex,-180,0,512,512)

end

[Genebris]

Same happens when using buffer like this: http://leadwerks.wikidot.com/wiki:render-to-texture-security-cam

Is it a bug? Josh, can you look into it?