opengl locator maya 2016

[Rudi Hammad]

hi, sooo.... here I am again
I am learning from chayan vinayak how to do opengl locator, so I wrote my code and couldn´t see anything on the viewport
I went directly to his code and try it out aandm everythinh evaluates, but nothing shows in the viewport.
I didn´t find anything about it in the internet. maybe I don´t know where to look.
Here is the code. I used paste bin. Sooo, anything new in maya 2016 that makes this code note to work? should I activate anything in the preferences?
thx

# =====================================================================
# Author : Chayan Vinayak
# Copyright Chayan Vinayak
#
# =====================================================================

import sys
import maya.OpenMaya as OpenMaya
import maya.OpenMayaMPx as OpenMayaMPx
import maya.OpenMayaRender as OpenMayaRender

nodeName = "LeftFoot"
nodeId = OpenMaya.MTypeId(0x100fff)

glRenderer = OpenMayaRender.MHardwareRenderer.theRenderer()
glFT = glRenderer.glFunctionTable()


class LocatorNode(OpenMayaMPx.MPxLocatorNode):
   
    def __init__(self):
        OpenMayaMPx.MPxLocatorNode.__init__(self)
       
    def compute(self,plug,dataBlock):
        return OpenMaya.kUnknownParameter    
       
    def draw(self,view,path,style,status):
        view.beginGL()
        # Pushed current state
        glFT.glPushAttrib(OpenMayaRender.MGL_CURRENT_BIT)
        # Enabled Blend mode (to enable transparency)
        glFT.glEnable(OpenMayaRender.MGL_BLEND)
        # Defined Blend function
        glFT.glBlendFunc(OpenMayaRender.MGL_SRC_ALPHA,OpenMayaRender.MGL_ONE_MINUS_SRC_ALPHA)
       
       
        # Define colors for different selection modes
        if status == view.kActive:
            glFT.glColor4f(0.2,0.5,0.1,0.3)
        elif status == view.kLead:
            glFT.glColor4f(0.5,0.2,0.1,0.3)            
        elif status == view.kDormant:
            glFT.glColor4f(0.1,0.1,0.1,0.3)
       
       
        # Draw a shape    
        glFT.glBegin(OpenMayaRender.MGL_POLYGON)
        glFT.glVertex3f(-0.031, 0  , -2.875)
        glFT.glVertex3f(-0.939, 0.1, -2.370)
        glFT.glVertex3f(-1.175, 0.2, -1.731)
        glFT.glVertex3f(-0.603, 0.3,  1.060)
        glFT.glVertex3f( 0.473, 0.3,  1.026)
        glFT.glVertex3f( 0.977, 0.2, -1.731)
        glFT.glVertex3f( 0.809, 0.1, -2.337)
        glFT.glVertex3f( 0.035, 0  , -2.807)
        glFT.glEnd()
       
        # Draw a shape    
        glFT.glBegin(OpenMayaRender.MGL_POLYGON)
        glFT.glVertex3f( -0.587, 0.3, 1.33)
        glFT.glVertex3f(  0.442, 0.3, 1.33)
        glFT.glVertex3f(  0.442, 0.3, 1.92)
        glFT.glVertex3f(  0.230, 0.3, 2.24)
        glFT.glVertex3f( -0.442, 0.3, 2.25)
        glFT.glVertex3f( -0.635, 0.3, 1.92)
        glFT.glVertex3f( -0.567, 0.3, 1.35)
        glFT.glEnd()    
               
       
        # Define colors for different selection modes
        if status == view.kActive:
            glFT.glColor4f(0.2,0.5,0.1,1)
        elif status == view.kLead:
            glFT.glColor4f(0.5,0.2,0.1,1)            
        elif status == view.kDormant:
            glFT.glColor4f(0.1,0.1,0.1,1)        
       
       
        view.drawText("Left Foot",OpenMaya.MPoint(0,0,0),view.kLeft)
        # Disable Blend mode
        glFT.glDisable(OpenMayaRender.MGL_BLEND)
        # Restore the state
        glFT.glPopAttrib()
        view.endGL()
       

   
   
   

def nodeCreator():
    return OpenMayaMPx.asMPxPtr( LocatorNode())
   
def nodeInitializer():
    pass


def initializePlugin(mobject):
    mplugin = OpenMayaMPx.MFnPlugin(mobject)
    try:
        mplugin.registerNode(nodeName,nodeId ,nodeCreator,nodeInitializer,OpenMayaMPx.MPxNode.kLocatorNode)
    except:
        sys.stderr.write( "Failed to register command: %s\n" % nodeName )

# Uninitialize the script plug-in
def uninitializePlugin(mobject):
    mplugin = OpenMayaMPx.MFnPlugin(mobject)
    try:
        mplugin.deregisterCommand( nodeName )
    except:
        sys.stderr.write( "Failed to unregister command: %s\n" % nodeName )

[owen burgess]

Is the locator rendering in VP1? It should be.
You won't see anything in VP2 until you tell VP2 about your locator. Check out the 2016 devkit examples of the footprint node for reference, and do read the excellent 2 part VP2 transition guide posted on autodesk.com.

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[Rudi Hammad]

ok, I can see it in VP1. But only at full screen viewport. If I have a layout with something + viewport , all viewport goes black.

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