VPBuffers

[Helper]

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On 30/07/2007 at 04:33, xxxxxxxx wrote:

Hello Matthias,

what i need is get all vpbuffer in the best way.
I'm getting now the basic vpbuffer from render.. but seem that is better to get all them from Multipass..

Any suggestions?

Cheers
Renato

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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

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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