VPBuffers

[Helper]

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On 31/07/2007 at 02:41, xxxxxxxx wrote:

I am not sure but could you not get all the information from the Multipass structure found in the PixelPost structure?

cheers,
Matthias

[Helper]

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On 31/07/2007 at 07:35, xxxxxxxx wrote:

Do you need the passes after or during rendering?

cheers,
Matthias

[Helper]

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On 31/07/2007 at 08:16, xxxxxxxx wrote:

i need to find all the VPBuffer opened by multipass. So i can fire pixels from vray to them
So i need them in Execute..

Cheers
Renato

[Helper]

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On 22/08/2007 at 19:11, xxxxxxxx wrote:

Hi all,

Here the scene that i've examined:

i wrote this piece of code looking for the separate light pass:

  
LONG *remapVpBuffers = (LONG* ) GeAlloc (sizeof(LONG)*33);  
          String *remapStrings = (String* ) GeAlloc (sizeof(String)*33);  
  
          remapVpBuffers[0]      = VPBUFFER_RGBA;  
          remapVpBuffers[1]      = VPBUFFER_AMBIENT;  
          remapVpBuffers[2]      = VPBUFFER_DIFFUSE;  
          remapVpBuffers[3]      = VPBUFFER_SPECULAR;  
          remapVpBuffers[4]      = VPBUFFER_SHADOW;  
          remapVpBuffers[5]      = VPBUFFER_REFLECTION;  
          remapVpBuffers[6]      = VPBUFFER_TRANSPARENCY;  
          remapVpBuffers[7]      = VPBUFFER_RADIOSITY;  
          remapVpBuffers[8]      = VPBUFFER_CAUSTICS;  
          remapVpBuffers[9]      = VPBUFFER_ATMOSPHERE;  
          remapVpBuffers[10]      = VPBUFFER_ATMOSPHERE_MUL;  
          remapVpBuffers[11]      = VPBUFFER_ALLPOSTEFFECTS;  
          remapVpBuffers[12]      = VPBUFFER_IMAGEBUILDING_PASS;  
          remapVpBuffers[13]      = VPBUFFER_DEPTH;  
          remapVpBuffers[14]      = VPBUFFER_MAT_COLOR;  
          remapVpBuffers[15]      = VPBUFFER_MAT_DIFFUSION;  
          remapVpBuffers[16]      = VPBUFFER_MAT_LUMINANCE;  
          remapVpBuffers[17]      = VPBUFFER_MAT_TRANSPARENCY;  
          remapVpBuffers[18]      = VPBUFFER_MAT_REFLECTION;  
          remapVpBuffers[19]      = VPBUFFER_MAT_ENVIRONMENT;  
          remapVpBuffers[20]      = VPBUFFER_MAT_SPECULAR;  
          remapVpBuffers[21]      = VPBUFFER_MAT_SPECULARCOLOR;  
          remapVpBuffers[22]      = VPBUFFER_ILLUMINATION;  
          remapVpBuffers[23]      = VPBUFFER_OBJECTBUFFER;  
          remapVpBuffers[24]      = VPBUFFER_POSTEFFECT;  
          remapVpBuffers[25]      = VPBUFFER_POSTEFFECT_MUL;  
          remapVpBuffers[26]      = VPBUFFER_AMBIENTOCCLUSION;  
          remapVpBuffers[27]      = VPBUFFER_MAT_NORMAL;  
          remapVpBuffers[28]      = VPBUFFER_MAT_UV;  
          remapVpBuffers[29]      = VPBUFFER_MOTIONVECTOR;  
          remapVpBuffers[30]      = VPBUFFER_BLEND;  
          remapVpBuffers[31]      = VPBUFFER_LIGHTBLEND;  
          remapVpBuffers[32]      = VPBUFFER_ALPHA;  
  
          remapStrings[0]      = "VPBUFFER_RGBA";  
          remapStrings[1]      = "VPBUFFER_AMBIENT";  
          remapStrings[2]      = "VPBUFFER_DIFFUSE";  
          remapStrings[3]      = "VPBUFFER_SPECULAR";  
          remapStrings[4]      = "VPBUFFER_SHADOW";  
          remapStrings[5]      = "VPBUFFER_REFLECTION";  
          remapStrings[6]      = "VPBUFFER_TRANSPARENCY";  
          remapStrings[7]      = "VPBUFFER_RADIOSITY";  
          remapStrings[8]      = "VPBUFFER_CAUSTICS";  
          remapStrings[9]      = "VPBUFFER_ATMOSPHERE";  
          remapStrings[10]      = "VPBUFFER_ATMOSPHERE_MUL";  
          remapStrings[11]      = "VPBUFFER_ALLPOSTEFFECTS";  
          remapStrings[12]      = "VPBUFFER_IMAGEBUILDING_PASS";  
          remapStrings[13]      = "VPBUFFER_DEPTH";  
          remapStrings[14]      = "VPBUFFER_MAT_COLOR";  
          remapStrings[15]      = "VPBUFFER_MAT_DIFFUSION";  
          remapStrings[16]      = "VPBUFFER_MAT_LUMINANCE";  
          remapStrings[17]      = "VPBUFFER_MAT_TRANSPARENCY";  
          remapStrings[18]      = "VPBUFFER_MAT_REFLECTION";  
          remapStrings[19]      = "VPBUFFER_MAT_ENVIRONMENT";  
          remapStrings[20]      = "VPBUFFER_MAT_SPECULAR";  
          remapStrings[21]      = "VPBUFFER_MAT_SPECULARCOLOR";  
          remapStrings[22]      = "VPBUFFER_ILLUMINATION";  
          remapStrings[23]      = "VPBUFFER_OBJECTBUFFER";  
          remapStrings[24]      = "VPBUFFER_POSTEFFECT";  
          remapStrings[25]      = "VPBUFFER_POSTEFFECT_MUL";  
          remapStrings[26]      = "VPBUFFER_AMBIENTOCCLUSION";  
          remapStrings[27]      = "VPBUFFER_MAT_NORMAL";  
          remapStrings[28]      = "VPBUFFER_MAT_UV";  
          remapStrings[29]      = "VPBUFFER_MOTIONVECTOR";  
          remapStrings[30]      = "VPBUFFER_BLEND";  
          remapStrings[31]      = "VPBUFFER_LIGHTBLEND";  
          remapStrings[32]      = "VPBUFFER_ALPHA";  
  
          GePrint ("************************************************");  
          VPBuffer *Buffer=NULL;  
          for (LONG lb=0; lb<33; lb++){  
               for (LONG subId = 0; subId<50; subId++) {  
                    Buffer = render->GetBuffer(remapVpBuffers[lb],subId);  
                    if (Buffer) {  
                         GePrint("Buf: " + remapStrings[lb]+ "   SubId: " + LongToString(subId));  
                         if (lb == 0) break;  
                    }  
               }  
          }  
  
gefree etc.etc.etc..  
  
  

Now..why all others lights layers are not in the list?

Thanks all
Renato

[Helper]

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On 24/08/2007 at 17:33, xxxxxxxx wrote:

[Helper]

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On 25/08/2007 at 11:34, xxxxxxxx wrote:

Matthias won't be back until tomorrow so hold tight!

[Helper]

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On 25/08/2007 at 13:46, xxxxxxxx wrote:

Thanks Robert

Can't you help me on this?

Cheers
Renato

[Helper]

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On 25/08/2007 at 14:36, xxxxxxxx wrote:

I don't know anything about VPBuffers.

[Helper]

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On 27/08/2007 at 03:17, xxxxxxxx wrote:

Here's how to browse through a multipass bitmap. For lights there is an inner loop that retrieves the data.

The main bitmap should be checked with bmp->IsMultipassBitmap() first and then casted into a (MultipassBitmap* )

  
     LONG j,i,id;  
     LONG cnt = b3d->GetLayerCount();  
  
     for (i=0; i<cnt; i++)  
     {  
          MultipassBitmap *sublayer,*layer = b3d->GetLayerNum(i);  
          if (!layer) continue;  
  
          LONG subcnt = layer->GetLayerCount();  
  
          for (j=0;j<subcnt || subcnt==-1;j++)  
          {  
               if (subcnt>0)  
                    sublayer   = layer->GetLayerNum(j);  
               else   
                    sublayer = layer;  
  
               if (!sublayer) continue;  
  
               id = sublayer->GetParameter(MPB_USERID).GetLong();  
          }  
     }  

[Helper]

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On 27/08/2007 at 10:47, xxxxxxxx wrote:

Thanks Philip,

but what do you mean about main bitmap?

do i need to get it from Multipass::VPBitmap[0]?

Cheers
Renato

[Helper]

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On 28/08/2007 at 12:26, xxxxxxxx wrote:

You can retrieve the main bitmap by calling

  
MultipassBitmap *mpb = (MultipassBitmap* )renderinstance->GetBuffer(NOTOK,0);  

[Helper]

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On 29/08/2007 at 08:49, xxxxxxxx wrote:

Hello Philip,

where:
LONG subcnt = layer->GetLayerCount();

subcnt always is -1 so the internal cycle go in loop forewer.

What's mean that GetLayerCount() return -1 ?

cheers
Renato

[Helper]

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On 29/08/2007 at 11:08, xxxxxxxx wrote:

But Philip did this in his loop:

for (j=0;j<subcnt || subcnt==-1;j++)

Probably explicitly to avoid the infinite loop. No idea about what -1 represents here though.

[Helper]

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On 29/08/2007 at 11:35, xxxxxxxx wrote:

Hello dear Robert,

but when the subcnt == -1.. it loop

renato

[Helper]

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On 29/08/2007 at 12:29, xxxxxxxx wrote:

Are you sure of your types (LONG)? In actuality, all that is needed is:

for (j = 0; j < subcnt; ++j)

Since -1L is less than 0L, the loop should exit immediately. But if ULONG is used, -1L is of course 4 billion.

All else failing, just check for -1 on subcnt and avoid the loop altogether:

LONG subcnt = layer->GetLayerCount();  
if (subcnt < 0)     continue;  
for (j=0; j!=subcnt; ++j)  
...

[Helper]

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On 30/08/2007 at 01:54, xxxxxxxx wrote:

My excuses... one line of source code was missing!

  
     LONG j,i,id;  
     LONG cnt = b3d->GetLayerCount();  
  
     for (i=0; i<cnt; i++)  
     {  
          MultipassBitmap *sublayer,*layer = b3d->GetLayerNum(i);  
          if (!layer) continue;  
  
          LONG subcnt = layer->GetLayerCount();  
  
          for (j=0;j<subcnt || subcnt==-1;j++)  
          {  
               if (subcnt>0)  
                    sublayer   = layer->GetLayerNum(j);  
               else  
                    sublayer = layer;  
  
               if (!sublayer) continue;  
  
               id = sublayer->GetParameter(MPB_USERID).GetLong();  
               if (subcnt==-1) break;       
          }  
     }  

[Helper]

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On 30/08/2007 at 11:10, xxxxxxxx wrote:

Hello Philip,

ok now but the objectID are the only buffers not detected with this way

any suggestions?

Cheers
Renato

[Helper]

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On 30/08/2007 at 14:25, xxxxxxxx wrote:

To retrieve the alpha channels use:

  
cnt = b3d->GetAlphaLayerCount();  
for (i=0; i<cnt; i++)  
{  
     B3dBitmap *layer = b3d->GetAlphaLayerNum(i);  
     if (!layer) continue;  
  
     id = sublayer->GetParameter(MPB_USERID).GetLong();  
     if (!id) continue;  
  
     ...  
}  

[Helper]

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On 30/08/2007 at 14:26, xxxxxxxx wrote:

Ah.. thanks.. i forgot that ObjectID are in fact alpha channels

Thanks a lot
Renato