Can someone help out with this. The code builds but I get "Exception thrown: Read Access Violation" and says my index buffer was a nullptr.
I'm going to attach my code and a screenshot of the error below or above. Any help is greatly appreciated.
//-------------------------------
//ヘッダファイル
//-------------------------------
#include "manager.h"
#include "renderer.h"
#include "dome.h"
#include "camera.h"
//-------------------------------
//コンストラクタ
//-------------------------------
CDome::CDome()
{
m_pIndxBuff = nullptr;
m_pVtxBuff = nullptr;
m_HorizontalGrid = NULL;
m_VerticalGrid = NULL;
// ワールドの位置・拡大・回転を設定
m_Scale = D3DXVECTOR3(1.0f, 1.0f, 1.0f);
m_Pos = D3DXVECTOR3(0.0f, 0.0f, 0.0f);
//m_Rotate = 0.0f;
}
CDome::CDome(int HorizontalGrid, int VerticalGrid, float Length)
{
m_pIndxBuff = nullptr;
m_pVtxBuff = nullptr;
m_HorizontalGrid = HorizontalGrid;
m_VerticalGrid = VerticalGrid;
// ワールドの位置・拡大・回転を設定
m_Scale = D3DXVECTOR3(1.0f, 1.0f, 1.0f);
m_Pos = D3DXVECTOR3(0.0f, 0.0f, 0.0f);
m_Length = Length;
}
CDome::CDome(int HorizontalGrid, int VerticalGrid, float Length, D3DXVECTOR3 Pos)
{
m_pIndxBuff = nullptr;
m_pVtxBuff = nullptr;
m_HorizontalGrid = HorizontalGrid;
m_VerticalGrid = VerticalGrid;
// ワールドの位置・拡大・回転を設定
m_Scale = D3DXVECTOR3(1.0f, 1.0f, 1.0f);
m_Pos = Pos;
m_Length = Length;
}
//-------------------------------
//デストラクタ
//-------------------------------
CDome::~CDome()
{
}
//-------------------------------
//初期化処理
//-------------------------------
void CDome::Init(void)
{
LPDIRECT3DDEVICE9 pDevice;
pDevice = CManager::GetRenderer()->GetDevice();
m_VtxNum = (m_HorizontalGrid + 1) * (m_VerticalGrid + 1);
m_IndxNum = (m_HorizontalGrid * 2 + 2) * m_VerticalGrid + (m_VerticalGrid - 1) * 2;
// テクスチャの生成
if (FAILED(D3DXCreateTextureFromFile(pDevice, "data/TEXTURE/dome.jpg", &m_pTexture)))
{
MessageBox(NULL, "Couldn't read Texture file destination", "Error Loading Texture", MB_OK | MB_ICONHAND);
}
//頂点バッファの作成
if (FAILED(pDevice->CreateVertexBuffer(sizeof(VERTEX_3D) * m_VtxNum,
D3DUSAGE_WRITEONLY,
FVF_VERTEX_3D,
D3DPOOL_MANAGED,
&m_pVtxBuff,
NULL))) //作成した頂点バッファのサイズ
{
MessageBox(NULL, "Error making VertexBuffer", "Error", MB_OK);
}
//インデクスバッファの作成
if (FAILED(pDevice->CreateIndexBuffer(sizeof(VERTEX_3D) * m_IndxNum,
D3DUSAGE_WRITEONLY,
D3DFMT_INDEX16,
D3DPOOL_MANAGED,
&m_pIndxBuff,
NULL)))
{
MessageBox(NULL, "Error making IndexBuffer", "Error", MB_OK);
}
VERTEX_3D *pVtx; //仮想アドレス用ポインターVertex
WORD *pIndx; //仮想アドレス用ポインターIndex
//頂点バッファをロックして仮想アドレスを取得する。
m_pVtxBuff->Lock(0, 0, (void**)&pVtx, 0);
//インデクスをロックして仮想アドレスを取得する。
m_pIndxBuff->Lock(0, 0, (void**)&pIndx, 0);
for (int i = 0; i < (m_VerticalGrid + 1); i++)
{
for (int j = 0; j < (m_HorizontalGrid + 1); j++)
{
pVtx[0].pos = D3DXVECTOR3(m_Length * sinf(i * (D3DX_PI * 0.5f / ((int)m_VerticalGrid - 1))) * sinf(j * (D3DX_PI * 2 / ((int)m_HorizontalGrid - 1))),
m_Length * cosf(i * (D3DX_PI * 0.5f / ((int)m_VerticalGrid - 1))),
m_Length * sinf(i * (D3DX_PI* 0.5f / ((int)m_VerticalGrid - 1))) * cosf(j * (D3DX_PI * 2 / ((int)m_HorizontalGrid - 1))));
D3DXVECTOR3 tempNormalize;
D3DXVec3Normalize(&tempNormalize, &pVtx[0].pos);
pVtx[0].normal = -tempNormalize;
pVtx[0].color = D3DXCOLOR(255, 255, 255, 255);
pVtx[0].tex = D3DXVECTOR2((float)j / (m_HorizontalGrid - 1), (float)i / (m_VerticalGrid - 1));
pVtx++;
}
}
for (int i = 0; i < m_VerticalGrid; i++)
{
if (i != 0)
{
pIndx[0] = ((m_HorizontalGrid + 1) * (i + 1));
pIndx++;
}
for (int j = 0; j < (m_HorizontalGrid + 1); j++)
{
pIndx[0] = ((m_HorizontalGrid + 1) * (i + 1)) + j;
pIndx[1] = ((m_HorizontalGrid + 1) * i) + j;
pIndx += 2;
}
if (i + 1 != m_VerticalGrid)
{
pIndx[0] = pIndx[-1];
pIndx++;
}
}
//インデクスをアンロックする
m_pIndxBuff->Unlock();
//頂点バッファをアンロックする
m_pVtxBuff->Unlock();
}
//-------------------------------
//終了処理
//-------------------------------
void CDome::Uninit(void)
{
// 頂点バッファの破棄
SAFE_RELEASE(m_pVtxBuff);
// インデクスの破棄
SAFE_RELEASE(m_pIndxBuff);
Release();
}
//-------------------------------
//更新処理
//-------------------------------
void CDome::Update(void)
{
m_Pos = CManager::GetCamera()->GetCameraPosEye();
}
//-------------------------------
//描画処理
//-------------------------------
void CDome::Draw(void)
{
LPDIRECT3DDEVICE9 pDevice;
pDevice = CManager::GetRenderer()->GetDevice();
D3DXMATRIX mtxWorld;
D3DXMATRIX mtxPos;
D3DXMATRIX mtxScale;
D3DXMATRIX mtxRotation;
// ワールドID
D3DXMatrixIdentity(&mtxWorld);
// 3D拡大行列
D3DXMatrixScaling(&mtxScale, m_Scale.x, m_Scale.y, m_Scale.z);
D3DXMatrixMultiply(&mtxWorld, &mtxWorld, &mtxScale);
// 3D平行移動行列
D3DXMatrixTranslation(&mtxPos, m_Pos.x, m_Pos.y + 70.0f, m_Pos.z);
D3DXMatrixMultiply(&mtxWorld, &mtxWorld, &mtxPos);
// ワールド座標変換
pDevice->SetTransform(D3DTS_WORLD, &mtxWorld);
// 頂点バッファをデータストリームに設定
pDevice->SetStreamSource(0, m_pVtxBuff, 0, sizeof(VERTEX_3D));
// 頂点フォーマットの設定
pDevice->SetFVF(FVF_VERTEX_3D);
// テクスチャの設定
pDevice->SetTexture(0, m_pTexture);
// インデクスの設定
pDevice->SetIndices(m_pIndxBuff);
// カラーが見えるようにライトを消す
pDevice->SetRenderState(D3DRS_LIGHTING, FALSE);
// ポリゴンの描画
pDevice->DrawIndexedPrimitive(D3DPT_TRIANGLESTRIP,
0,
0,
m_VtxNum,
0,
m_IndxNum - 2);
// ライトを元に戻す
pDevice->SetRenderState(D3DRS_LIGHTING, TRUE);
}
//-------------------------------
//Create MeshDome
//-------------------------------
CDome *CDome::Create(int HorizontalGrid, int VerticalGrid, float Length)
{
CDome *pMeshDome;
pMeshDome = new CDome(HorizontalGrid, VerticalGrid, Length);
pMeshDome->Init();
return pMeshDome;
}
CDome *CDome::Create(int HorizontalGrid, int VerticalGrid, float Length, D3DXVECTOR3 Pos)
{
CDome *pMeshDome;
pMeshDome = new CDome(HorizontalGrid, VerticalGrid, Length, Pos);
pMeshDome->Init();
return pMeshDome;
}
