RayObject and polygon selections/textures [SOLVED]

[Helper]

On 06/07/2015 at 23:01, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   15+ 
Platform:   Windows  ;   
Language(s) :     C++  ;

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consider a polygon object which got many different textures, each with its own selection, how to retrieve this data through RayObject "I searched and found old threads, found this thread: https://developers.maxon.net/forum/topic/3147/2527_uvw-projections&KW=rsadr "

it has an example, but it is not a complete one, may be more clarification here please.

[Helper]

On 07/07/2015 at 07:38, xxxxxxxx wrote:

Hello,

the index of the restriction is stored in the TexData object (TexData::restrict). With that index you can check if there is a restriction and then you can test if a given polygon is selected or not. Something like this:

  
// get selection  
const Int32 selection = texData->restrict;  
  
// if there is a selection  
if(selection != 0)  
{  
 // check for each polygon  
  
 for (Int32 polyIndex = 0; polyIndex < rayObject->vcnt; ++polyIndex)  
 {  
     GePrint("Texture "+String::IntToString(textureIndex) + ", Polygon "+String::IntToString(polyIndex));  
     if ((rayObject->rsadr[texData->restrict][polyIndex >> 5] & (1 << (polyIndex & 31))) == 0)  
     {  
         GePrint("not selected");  
     }  
     else  
     {  
         GePrint("selected");  
     }  
 }  
}  

best wishes,
Sebastian

[Helper]

On 07/07/2015 at 07:42, xxxxxxxx wrote:

thanks a lot Sebastian , consider this solved.