DrawPolygonObject() w/Transparency

Helper

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On 10/11/2008 at 04:14, xxxxxxxx wrote:

Hey Robert,

try to use negative values for SetTransparency (0 to -255). That might work.

Helper

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On 10/11/2008 at 08:29, xxxxxxxx wrote:

Did that, nope.

SetTransparency() doesn't seem to work with these methods at all.

This is why I tried building the polygon object using Polygon3D() or PolygonNew() but these appear oddly - maybe because it treats the polys as individual rather than as part of an object (?).

Helper

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On 10/11/2008 at 11:13, xxxxxxxx wrote:

hmm...have you tried DrawPoly too? There you can specify vertex normals which should be working to rather show a connected polyobject.

Helper

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On 10/11/2008 at 12:33, xxxxxxxx wrote:

If I could ever get a polygon object with NORMALS! So far, neither C4D nor Riptide (free or pro) will create them solely from a Phong tag (and there is no Normal tag in R10+).

That's one reason why I hadn't tried it yet.

Helper

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On 11/11/2008 at 10:41, xxxxxxxx wrote:

Hey Robert,
Sorry to be so brief in my e-mail... Riptide Pro should be creating Normals with just a Phong Tag present (assuming you have "Export Normals" enabled). Is it not?
Keith

Helper

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On 11/11/2008 at 11:48, xxxxxxxx wrote:

Neither is creating normals (vn) in the exported .obj file. I am using a pre-release version of Riptide Pro though (haven't gotten around to getting the update and serial number). Maybe I'll get that updated and try again.

Helper

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On 11/11/2008 at 12:08, xxxxxxxx wrote:

Ahh (odd). Anyway, I just double-checked and the release version of Riptide Pro does indeed create Normal records ('vn') with just a Phong Tag - just send me your latest digits and I'll get you a license.
Riptide (Classic) would also create Normal records, IF the mesh has a Normal Tag, which can be created using my Add Normals plugin (there never was a way to create a Normal Tag using the C4D interface - that's why I wrote Add Normals).

Helper

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On 11/11/2008 at 12:21, xxxxxxxx wrote:

BTW, instead of the above, maybe try setting xray mode:

    
    
      
      ObjectColorProperties objColor;  
      objColor.usecolor = ID_BASEOBJECT_USECOLOR_ALWAYS;  
      objColor.xray = TRUE;  
      m_MagZone->SetColorProperties(&objColor);

...I was using that on a separate object, but maybe your plugin can set it on itself?

Helper

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On 11/11/2008 at 12:37, xxxxxxxx wrote:

Got the export working (as you already know).

Plugin objects don't support X-Ray mode - it is not included in the Basic Properties. So, I'd be right back where I started - how to set transparency with BaseDraw.

Unfortunately, how even X-Ray is done isn't explained anywhere.

Helper

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On 12/11/2008 at 08:36, xxxxxxxx wrote:

Quote: Originally posted by kuroyume0161 on 11 November 2008
>
> * * *
>
> Got the export working (as you already know).
>
> Plugin objects don't support X-Ray mode - it is not included in the Basic Properties. So, I'd be right back where I started - how to set transparency with BaseDraw.
>
> Unfortunately, how even X-Ray is done isn't explained anywhere.
>
> * * *
Hmm... add a "C++ SDK - Rounded Tube" to your scene... it has an X-Ray option in it's Basic properties.

Helper

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On 12/11/2008 at 08:44, xxxxxxxx wrote:

Actually, I just tried this in the Rounded Tube example...

    
    
      
    Bool RoundedTube::Message(GeListNode *node, LONG type, void *t_data)  
    {
    
    
    
    
        if (type==MSG_DESCRIPTION_VALIDATE)  
        {  
            BaseContainer *data = ((BaseObject* )node)->GetDataInstance();  
            CutReal(*data,TUBEOBJECT_IRADX,0.0,data->GetReal(TUBEOBJECT_RAD));  
            CutReal(*data,TUBEOBJECT_ROUNDRAD,0.0,data->GetReal(TUBEOBJECT_IRADX));  
        }  
        else if (type==MSG_MENUPREPARE)  
        {  
            ((BaseObject* )node)->SetPhong(TRUE,FALSE,0.0);
    
    
    
    
            //****  insert this code, below *****  
            ObjectColorProperties objColor;  
            objColor.usecolor = ID_BASEOBJECT_USECOLOR_ALWAYS;  
            objColor.xray = TRUE;  
            ((BaseObject* )node)->SetColorProperties(&objColor);  
        }  
        return TRUE;  
    }

..worked like a champ.

Helper

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On 12/11/2008 at 08:48, xxxxxxxx wrote:

Hmm.. that was a generator object though... deformer objects don't have the X-Ray option - as you mentioned.

Helper

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On 13/11/2008 at 05:39, xxxxxxxx wrote:

You could also calculate the vertex normals from the mesh yourself.

Helper

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On 13/11/2008 at 17:09, xxxxxxxx wrote:

Or, I could use PolygonObject::CreatePhongNormals().

Except that changing the values on the added/required Phong tag doesn't seem to change the display results of BaseDraw::DrawPoly() - always as if Angle Limit is off or Phong Angle is 180d even though I'm setting the values. It would sort of suck if I have to load the real object from file, get this Vector array, and write it out to file to use those values instead.

Luckily, DrawPoly() is responding to BaseDraw::SetTransparency().

Helper

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On 14/11/2008 at 00:10, xxxxxxxx wrote:

What I'm doing is just using the polygon normal for the vertex normals - about all I need as this is a display representation and not a 'real' object. The results are facetted but at least not overly smoothed on the other end of the spectrum. Now onto more important parts of the code.

Helper

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On 14/11/2008 at 06:23, xxxxxxxx wrote:

Just for future reference - and something I only recently discovered - calling ie.
op->SetPhong(true, true, Rad(80.0));
... will create/add a Phong Tag on your mesh. I used to always manually MakeTag() (or Alloc and Add) and then call SetPhong(), but that was apparently redundant.
Also, op->CreatePhongNormals() should give you Normals once a Phong Tag is on your mesh.
That may or may not help you out in this case - I want to see the more important parts working, myself :).