WorldViz User Forum - setHUD example

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- - setHUD example (https://forum.worldviz.com/showthread.php?t=4154)

I am working on an application that having a HUD would be a useful feature. Is there an existing example of how to set up and draw to a renderNode object that has been set up as a HUD? I have briefly searched the online articles and the examples provided with Vizard 4, but I haven't come across anything useful yet.

It may also be possible that this is not what I want to do.

Alternatively, I would like to Draw another 3D object on the fly in the center of a new scene. Render that scene to a texture, and display that texture on a quad that is drawn orthographically.

You can use a sub window to render an arbitrary scene on top of the main window. Here is an example script that shows how. Let me know if I misunderstood your question.

Code:

import viz

import vizact

viz.go()



# Render model to main window

viz.add('dojo.osgb')



# Create sub window

window = viz.addWindow()

window.clearcolor(viz.GRAY)



# Uncomment this line to have a transparent background

#window.setClearMask(viz.GL_COLOR_BUFFER_BIT,viz.MASK_REMOVE)



# Create view/scene for sub window

view = viz.addView()

scene = viz.addScene()

view.setScene(scene)

window.setView(view)

view.setPosition([0,0,-2])

view.lookAt([0,0,0])



# Add model to sub window

model = viz.add('beachball.osgb',scene=scene)

model.addAction(vizact.spin(0,1,0,90))

I think this is what I'm looking for. Thank you.