DrawHudText interferes with Polygon Pen Tool etc

FlavioDiniz

It's me again @i_mazlov, sorry ️
I came across another issue caused by the DrawHudText:

It's almost impossible to use some tools while the DrawHudText is active. As soon as I disable it, everything goes back to normal !

The tools I noticed the issue are:

Polygon Pen Tool
Loop / Path Cut

I Imagine that's because these tools draws stuff on screen in the same "canvas" the DrawHudText draws...
I'll investigate it a bit more, maybe there's some z-depth or another settings that helps on this, maybe other flags for the GetDrawParam ...

If anything, I could try to disable automatically the draw function if those modeling tools get selected

Cheers,
Flavio Diniz

i_mazlov

Hi Flavio,

Thanks for getting back to us! There's no reason to be sorry, it's the opposite, you're very welcome to share your ideas and post questions!

I've forked your question to a separate thread. Even though this sounds like a similar issue, under the hood it can be a completely different story

Please attach a sample project file (or at least the python code you're using), which would help us reproducing the behavior from the video. This makes things happenning easier and faster.

Cheers,
Ilia

FlavioDiniz

Thanks @i_mazlov !
So, I figured what the problem was, it was kind of my fault due to my not so good scripting skills, lol

I'll explain the issues I was having anyway:

Issue 1

File save state was constantly unsaved. If you click to save, then click to close the document, it would ask if you want to save the document. CTRL+S didn't do any difference.

Issue 2

When the DrawHudText was visible on screen, it was preventing the usage of some tools:

Polygon Pen Tool,
Loop / Path Cut,
pen_tool.mp4

I'm attaching the C4D file and the code on the python tag below:
Using C4D 2025.2.1
DrawHudText_Issue.c4d

# Autosave Info By Flavio Diniz
import c4d

def main() -> None:
    pass

def draw(bd: c4d.BaseDraw) -> bool:

    savedColor = bd[c4d.BASEDRAW_HUD_TEXTCOLOR]
    savedBG = bd[c4d.BASEDRAW_HUD_BACKCOLOR]
    savedOpacity = bd[c4d.BASEDRAW_HUD_BACKOPACITY]

    if bd.GetDrawPass() != c4d.DRAWPASS_OBJECT or bd.GetDrawParam(c4d.BASEDRAW_IS_PICK_OBJECT):
        return True

    bd = doc.GetActiveBaseDraw()

    if c4d.GetWorldContainerInstance()[c4d.WPREF_AUTOSAVE_ENABLE] == 1:
        autosave = "Enabled"

        bd[c4d.BASEDRAW_HUD_TEXTCOLOR]= c4d.Vector(0.3, 0.8, 0.3)
        bd[c4d.BASEDRAW_HUD_BACKCOLOR]= c4d.Vector(0,0.7,0)
        bd[c4d.BASEDRAW_HUD_BACKOPACITY] = 0.2

        bd.DrawHUDText(0, 3, "Autosave: {}".format(autosave))

        bd[c4d.BASEDRAW_HUD_TEXTCOLOR]= savedColor
        bd[c4d.BASEDRAW_HUD_BACKCOLOR]= savedBG
        bd[c4d.BASEDRAW_HUD_BACKOPACITY] = savedOpacity


    elif c4d.GetWorldContainerInstance()[c4d.WPREF_AUTOSAVE_ENABLE] == 0:
        autosave = "Disabled"

        bd[c4d.BASEDRAW_HUD_TEXTCOLOR]= c4d.Vector(0.8, 0.5, 0.5)
        bd[c4d.BASEDRAW_HUD_BACKCOLOR]= c4d.Vector(0.9,0,0)
        bd[c4d.BASEDRAW_HUD_BACKOPACITY] = 0.1

        bd.DrawHUDText(0, 3, "Autosave: {}".format(autosave))

        bd[c4d.BASEDRAW_HUD_TEXTCOLOR]= savedColor
        bd[c4d.BASEDRAW_HUD_BACKCOLOR]= savedBG
        bd[c4d.BASEDRAW_HUD_BACKOPACITY] = savedOpacity

    return c4d.DRAWRESULT_OK

.

So, in short, the problem is my attempt to change the background and text color of the DrawHudText !

I know it's not fully supported in Python, but I found a piece of code that allowed me to store the original HUD color, then change the color, draw the HUD, then revert back the color to the original... yes, I imagine this is 200% not recommended to do hahaha

As soon as I remove these functions to change color from the code, both issues listed above are gone !

This is the code without the coloring part:

# Autosave Info By Flavio Diniz
import c4d

def main() -> None:
    pass

def draw(bd: c4d.BaseDraw) -> bool:
    if bd.GetDrawPass() != c4d.DRAWPASS_OBJECT or bd.GetDrawParam(c4d.BASEDRAW_IS_PICK_OBJECT):
        return True

    bd = doc.GetActiveBaseDraw()

    if c4d.GetWorldContainerInstance()[c4d.WPREF_AUTOSAVE_ENABLE] == 1:
        autosave = "Enabled"
        bd.DrawHUDText(0, 3, "Autosave: {}".format(autosave))

    elif c4d.GetWorldContainerInstance()[c4d.WPREF_AUTOSAVE_ENABLE] == 0:
        autosave = "Disabled"
        bd.DrawHUDText(0, 3, "Autosave: {}".format(autosave))

    return c4d.DRAWRESULT_OK

I can live without the coloring part, if you know a better way to do it or a fix, good! if not, that's fine!

Cheers,
Flavio Diniz

i_mazlov

Hi @FlavioDiniz,

thanks for providing more information on the issue.

Regarding your "Issue 2". I see no reason for the background color (and other properties) to not work in your setup, hence I've created a bug report for that (ITEM#587756). Thanks for reporting the issues you face during your development.

We are happy to handle your "Issue 1" about "constantly unsaved document" in a separate thread, once you create it yourself.

Cheers,
Ilia