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    DrawHUDText returns a white box instead of a text?

    Cinema 4D SDK
    r20 python
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    • B
      bentraje
      last edited by bentraje

      @m_magalhaes

      Thank you so much for the patience. It loads with no errors. Just one thing, how does it draw in the viewport?
      I guess the name of the tag will appear on the viewport?

      You can see the current state here:
      https://www.dropbox.com/s/pekm2msrut6f2ia/c4d132_HUD_draw_text_d.jpg?dl=0

      Sorry again for the trouble.

      1 Reply Last reply Reply Quote 0
      • ManuelM
        Manuel
        last edited by Manuel

        Don't worry 🙂

        the code prevent to work with non polygon object because we need to acces point position information with GetAllPoints

        if not op.IsInstanceOf(c4d.Opolygon):
                    return c4d.DRAWRESULT_OK
        

        just edit your primitive. (by the way be carefull with the point number, it can be messy xD)

        Cheers
        Manuel

        MAXON SDK Specialist

        MAXON Registered Developer

        1 Reply Last reply Reply Quote 1
        • B
          bentraje
          last edited by

          @m_magalhaes

          Thanks for the response! It works as expected. You can see the result here:
          https://www.dropbox.com/s/c4iivf56vaqzztk/c4d132_HUD_draw_text_e.jpg?dl=0

          Using the plug-in code you provided, I just replaced the DrawMultiple command to
          bd.DrawHUDText(50, 50, 'HUD Test')

          I see now what you mean by "the viewport is redraw so you have to redraw your text again."
          I tried adding print "Hello World" within the code and it prints every redraw.

          Will consider the thread as solved.

          Thanks again. Have a great day ahead!

          1 Reply Last reply Reply Quote 0
          • M
            mdr74
            last edited by

            Hi Manuel,
            I've tried to follow your example from the thread you linked but it gives me "Could not initialize global resource for the plugin"

            I thought it was solved, maybe something is changed in R21 or S22?

            thanks

            1 Reply Last reply Reply Quote 0
            • M
              mdr74
              last edited by

              I started again from scratch and now it works but only in R21.
              In S22 here's no error in the console but nothing shows in the viewport (the object is a polygon).

              1 Reply Last reply Reply Quote 0
              • ManuelM
                Manuel
                last edited by

                hi,

                in s22 you have to register the tag with this tag : TAG_IMPLEMENTS_DRAW_FUNCTION

                info=c4d.TAG_EXPRESSION | c4d.TAG_VISIBLE | c4d.TAG_IMPLEMENTS_DRAW_FUNCTION ,
                

                Cheers,
                Manuel

                MAXON SDK Specialist

                MAXON Registered Developer

                1 Reply Last reply Reply Quote 0
                • M
                  mdr74
                  last edited by

                  it works.
                  thanks

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                  • M
                    mdr74
                    last edited by

                    I discovered another problem in S22, maybe.
                    The Hud text is correct but when I deselect the polygon object I cannot select anything in the viewport anymore.
                    I don't know if it's a bug or an error in the plugin

                    thanks again

                    1 Reply Last reply Reply Quote 0
                    • ManuelM
                      Manuel
                      last edited by

                      hi,

                      thanks a lot for that, i didn't tested it.
                      I've opened a bug entry for that one. We changed the viewport and lot of stuff.

                      I'll update this thread when the bug will be fixed.

                      Cheers,
                      Manuel

                      MAXON SDK Specialist

                      MAXON Registered Developer

                      1 Reply Last reply Reply Quote 1
                      • Paul EverettP
                        Paul Everett
                        last edited by

                        @m_magalhaes said in DrawHUDText returns a white box instead of a text?:

                        TAG_IMPLEMENTS_DRAW_FUNCTION

                        I came across this problem today.

                        #define TAG_IMPLEMENTS_DRAW_FUNCTION (1 << 😎

                        note : you can add this flag to R21 builds, and your tags then display as expected in 22.

                        RE: DrawHUDText

                        z settings have no effect on text.
                        in 21, text is drawn behind poly objects.
                        in 22 text is drawn in front of obejcts.

                        IMO, this is a bit of a mess. the new draw flag should be the exact opposite to what it is, to keep compatibility.
                        small differences, make a big difference when your already bending over backwards trying not to have to rebuild everything yet again, for 22.

                        1 Reply Last reply Reply Quote 0
                        • M
                          m_adam
                          last edited by

                          Regarding the Z setting of DrawHUDText (I'm not sure about which one to be honest since there is no Z param for this method) previously the fact that HUD was behind poly object was a limitation regarding how our draw call was done by the viewport, but this is addressed in S22 and its the expected result that a HUD text is not overridden by any other objects but act as a HUD and to be draw in front of everything.

                          Cheers,
                          Maxime.

                          MAXON SDK Specialist

                          Development Blog, MAXON Registered Developer

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