WorldViz User Forum - Saving renderTexture

Hello,

I am trying to save the content of a renderTexture to a file.
I basically use code from the examples as listed further down my post.
Everytime I call renderTexture.save("test") i get an error message that tells me that there is no data in the image.

Code:

* ERROR: Texture does not contain image data, cannot save to file 'test'

Any hints on what I am doing wrong?
I also put the texture on a quad to see if there is actually something going wrong, but the desired render is diplayed fine on the quad.
Here is my code:

Code:

  

                # Create render texture for sending screenshots

                self.renderTexture = viz.addRenderTexture()

                

                # Create render node as camera

                self.renderNode = viz.addRenderNode(size=(800,600))

                

                # Do not inherit view/projection settings from main window

                #self.renderNode.setInheritView(False)

                

                # Set FOV for renderTexture camera

                self.renderNode.setFov(self.FOV,800/600.0,0.1,1000.0)

                

                # Render to renderTexture feed texture

                self.renderNode.attachTexture(self.renderTexture)

                #NOTE: I also tried renderNode.setTexture here, but that didn't work either



                # Only render once per frame, in case stereo is enabled

                self.renderNode.setRenderLimit(viz.RENDER_LIMIT_FRAME)

                

                #add a texture quad

                quad = viz.addTexQuad()

                #add the rendertexture to the texturequad

                quad.texture( self.renderTexture )

                #position the texture quad

                quad.setPosition(0,1,0)

                #NOTE: The texture renders fine on the quad

                self.renderTexture.save("test")

                #This call fails with above error