Rotating a postcard

The new 0.42 extended will have a more compatible Max2D behaviour. I hope to release it soon. I have yet to create some additional interface function and some bugs left to fix. So keep patient.

As a possible fix you could try something like this:

TGlobal.BeginMax2D()
 SetBlend AlphaBlend 'Seems to fix sometimes the behaviour
 DrawRect 0,0,-5,-5 'Also seems to fix some things
 'YYour 2D Stuff

Or replace the Functions in TGLobal.bmx with these:

Function GraphicsInit()
	
		TTexture.TextureFilter("",9)
	
		glewInit() ' required for glActiveTextureARB

		'Save the Max2D settings for later
		glPushAttrib GL_ALL_ATTRIB_BITS
		glPushClientAttrib GL_CLIENT_ALL_ATTRIB_BITS
		glMatrixMode GL_MODELVIEW
		glPushMatrix
		glMatrixMode GL_PROJECTION
		glPushMatrix
		glMatrixMode GL_TEXTURE
		glPushMatrix
		glMatrixMode GL_COLOR
		glPushMatrix 
		
		EnableStates()
		
		glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL,GL_SEPARATE_SPECULAR_COLOR)
		glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER,GL_TRUE)

		glClearDepth(1.0)						
		glDepthFunc(GL_LEQUAL)
		glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST)

		glAlphaFunc(GL_GEQUAL,0.1)

	End Function
	
	'enter Max2D mode
	Function BeginMax2D()
		
		glPopClientAttrib
		glPopAttrib
		glMatrixMode GL_MODELVIEW
		glPopMatrix
		glMatrixMode GL_PROJECTION
		glPopMatrix
		glMatrixMode GL_TEXTURE
		glPopMatrix
		glMatrixMode GL_COLOR
		glPopMatrix 
		
		'DrawRect 0,0,-5,-5
		
	End Function
	
	'return to MiniB3D mode
	Function EndMax2D()
		
		'Save the Max2D settings for later
		glPushAttrib GL_ALL_ATTRIB_BITS
		glPushClientAttrib GL_CLIENT_ALL_ATTRIB_BITS
		glMatrixMode GL_MODELVIEW
		glPushMatrix
		glMatrixMode GL_PROJECTION
		glPushMatrix
		glMatrixMode GL_TEXTURE
		glPushMatrix
		glMatrixMode GL_COLOR
		glPushMatrix 
		
		EnableStates()
		glDisable GL_TEXTURE_2D
		
		glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL,GL_SEPARATE_SPECULAR_COLOR)
		glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER,GL_TRUE)

		glClearDepth(1.0)						
		glDepthFunc(GL_LEQUAL)
		glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST)

		glAlphaFunc(GL_GEQUAL , 0.5)
		
		If isWireframe = True Then
				glPolygonMode(GL_FRONT , GL_LINE)
		EndIf
		
    End Function

And rebuild the module afterwards.