Optimal Mapping [SOLVED]

Helper

On 16/06/2015 at 08:00, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   16
Platform:   Windows ;
Language(s) :     C++ ;

---------
Hello,

I create two UVW Tags in my code and I want to use optimal mapping on the first one and quader mapping on the second one. How can I achieve this? I know about the CallUVCommand but how can I tell the program to use one of my UVW Tags?

// Generate Lightmap UV  
UVWTag* lightmap_uv_tag = (UVWTag* )op->MakeVariableTag(Tuvw,polyobj->GetPolygonCount(),nullptr);  
lightmap_uv_tag->SetName("lightmap");                      
  
// Generate Texture UV  
UVWTag* texture_uv_tag = (UVWTag* )op->MakeVariableTag(Tuvw,polyobj->GetPolygonCount(),nullptr);  
texture_uv_tag->SetName("texture");

Thanks
crush4

Helper

On 17/06/2015 at 11:50, xxxxxxxx wrote:

Hello,

it seems that the UV functions should be used in interactive tools. So they expect a properly setup scene. CallUVCommand() works together with GetActiveUVSet() and the created TempUVHandle. So your code could look something like this:

  
VariableTag* uvwtag = VariableTag::Alloc(Tuvw,poly->GetPolygonCount());  
  
poly->InsertTag(uvwtag);  
  
doc->SetActiveObject(poly);  
doc->SetActiveTag(uvwtag);  
  
// select all polygons  
  
BaseSelect* selection = poly->GetPolygonS();  
selection->SelectAll(0,poly->GetPolygonCount()-1);  
  
// Cinema must be in UV Poly edit mode  
doc->SetMode(Muvpolygons);  
  
TempUVHandle* handle = GetActiveUVSet(doc,GETACTIVEUVSET_ALL);  
  
if(handle)  
{  
 // set up settings  
 BaseContainer bcMapSettings;  
  
 bcMapSettings.SetBool(OPTIMALMAPPING_PRESERVEORIENTATION, true);  
 bcMapSettings.SetBool(OPTIMALMAPPING_STRETCHTOFIT,       false);  
 bcMapSettings.SetFloat(OPTIMALMAPPING_DISTORTION,         0.5);  
 bcMapSettings.SetInt32(OPTIMALMAPPING_RELAXCOUNT,          0);  
 bcMapSettings.SetFloat(OPTIMALMAPPING_SPACING,             0.2);  
  
 // call command  
 CallUVCommand(handle->GetPoint(), handle->GetPointCount(), handle->GetPoly(), handle->GetPolyCount(),handle->GetUVW(),handle->GetPolySel(),handle->GetUVPointSel(),handle->GetBaseObject(), Muvpolygons,UVCOMMAND_OPTIMALMAPPING,bcMapSettings);  
  
 // apply  
 handle->SetUVWFromTextureView(handle->GetUVW(),false,false,false);  
  
 FreeActiveUVSet(handle);  
}  
  
EventAdd();

best wishes,
Sebastian

Helper

On 18/06/2015 at 12:13, xxxxxxxx wrote:

Thank you Sebastian,

this works perfectly for me.

// Cinema must be in UV Poly edit mode  
doc->SetMode(Muvpolygons);

is not needed and causes some errors in the uv map if before some uv polygons were selected. I don't know why.