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Index&Vertex Buffers, need advice!

Started by meekman Sep 17, 2006 at 2:50 PM 4 replies 2.1k views

Original Post

Sep 17, 2006 at 2:50 PM

Hello! I have a problem with using Idex buffer with Vertex one. U can see that my compiled results are very strange: http://childrenofvoid.ho.com.ua/GAME/prev_LINELIST.jpg http://childrenofvoid.ho.com.ua/GAME/prev_TRIANGLELIST.jpg Maybe im using iBuffer wrong? I really need help with this. Plz give me an advice what i do wrong! *I have 4 cells, 2 in each row. 9 verts and 6 per ech cell of index values = 24.


[INDEX DUMP] [24]
0,1,3,3,1,4,
1,2,4,4,2,5,
3,4,6,6,4,7,
4,5,7,7,5,8,
[END]

[MAP DUMP] [9]
0: -2.5,0,2.5
1: 0,0,2.5
2: 2.5,0,2.5
3: -2.5,0,0
4: 0,0,0
5: 2.5,0,0
6: -2.5,0,-2.5
7: 0,0,-2.5
8: 2.5,0,-2.5
[END]

ET3D

Sep 17, 2006 at 3:12 PM

Your coordinates and indices seem okay, so check other things, like whether the buffers you allocate are of the correct size and what parameters you provide for rendering.

meekman

Sep 17, 2006 at 3:19 PM

Quote:
Original post by ET3D
Your coordinates and indices seem okay, so check other things, like whether the buffers you allocate are of the correct size and what parameters you provide for rendering.

Yea, i cant understand where i should search the problem!
Theese are usual functions:

void _Ter::CreateIndexBuffer(){	if(FAILED(pDD->CreateIndexBuffer( this->indexcount * sizeof(int) * pHg->verttotal, 		0, D3DFMT_INDEX16, D3DPOOL_DEFAULT,&pIB, NULL))) pDBG->PutMessage("index buf failed");    //Блокируем    VOID* pBI;	if(FAILED(pIB->Lock( 0, 0, (void**)&pBI, 0 ))) pDBG->PutMessage("index locking failed");    //Копируем    memcpy( pBI, index, this->indexcount * sizeof(int) );    // Разблокируем    pIB->Unlock();}

void _Ter::CreateVertexBuffer(){	//Создание буфера вершин	if(FAILED(pDD->CreateVertexBuffer(sizeof(vertex)*pHg->verttotal,D3DUSAGE_DYNAMIC,D3DFVF_VERTEX,D3DPOOL_DEFAULT,&pVB,NULL)))		pDBG->PutMessage("Vertex Buffer creation failed");;	void* pBV = NULL;	if(FAILED(pVB->Lock(0,0,(void**)&pBV,0))) pDBG->PutMessage("Failed vertex locking");	memcpy(pBV,this->ter,sizeof(vertex)*pHg->verttotal);	pVB->Unlock();}

Every forum says "Yea boy, buffers are correct!". But what the hell???

bit64

Sep 17, 2006 at 3:23 PM

if(FAILED(pDD->CreateIndexBuffer( this->indexcount * sizeof(int) * pHg->verttotal, 0, D3DFMT_INDEX16, D3DPOOL_DEFAULT,&pIB, NULL))) pDBG->PutMessage("index buf failed");

sizeof(int) != D3DFMT_INDEX16

sizeof(short) == D3DFMT_INDEX16
sizeof(int) == D3DFMT_INDEX32

:)

meekman

Sep 17, 2006 at 3:28 PM

Quote:
Original post by bit64
if(FAILED(pDD->CreateIndexBuffer( this->indexcount * sizeof(int) * pHg->verttotal, 0, D3DFMT_INDEX16, D3DPOOL_DEFAULT,&pIB, NULL))) pDBG->PutMessage("index buf failed");

sizeof(int) != D3DFMT_INDEX16

sizeof(short) == D3DFMT_INDEX16
sizeof(int) == D3DFMT_INDEX32

:)

You cant even imagine what u just did!!! Its works fine with D3DFMT_INDEX32!!!
Thanx man! Im appreciate

bit64

Sep 18, 2006 at 11:21 AM

Glad I could help. :)

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