DrawPolygonObject() w/Transparency

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 09/11/2008 at 19:50, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   R9-R11 
Platform:   Windows  ; Mac  ;  Mac OSX  ; 
Language(s) :     C++  ;

---------
Is there any way to draw with BaseDraw::DrawPolygonObject() or BaseDraw::DrawObject() taking into account transparency (BaseDraw::SetTransparency() for instance - which doesn't work)?

I've tried BaseDraw::Polygon3D() for a polygon object, but the results otherwise are unpleasant (lighting and such).

Is there a better or proper way?

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

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

Hey Robert,

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

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

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 (?).

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

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.

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

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.

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

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

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

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.

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

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).

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

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?

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

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.

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

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.

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

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.

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

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.

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

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

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

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

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().

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

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.

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

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 :).