本文整理汇总了C++中AABBox::Intersects方法的典型用法代码示例。如果您正苦于以下问题：C++ AABBox::Intersects方法的具体用法？C++ AABBox::Intersects怎么用？C++ AABBox::Intersects使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类AABBox的用法示例。
在下文中一共展示了AABBox::Intersects方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: update
void COpenGLGrassRenderer::update(float fDeltaTimeInSecond, const Vector4D& camPos, const Frustum& viewFrustum, CSGPGrass* pGrass)
{
m_vCameraPos = camPos;
m_GrassClusterInstanceArray.clearQuick();
if( !pGrass )
return;
SGPVertex_GRASS_Cluster tempData;
CSGPTerrainChunk** pChunkEnd = pGrass->m_TerrainGrassChunks.end();
for( CSGPTerrainChunk** pChunkStart = pGrass->m_TerrainGrassChunks.begin(); pChunkStart < pChunkEnd; pChunkStart++ )
{
if( !m_pRenderDevice->GetWorldSystemManager()->isTerrainChunkVisible( *pChunkStart ) )
continue;
for(uint32 i=0; i<(*pChunkStart)->GetGrassClusterDataCount(); i++ )
{
// None Flag, skip this Cluster
uint32 nGrassSetFlag = (*pChunkStart)->GetGrassClusterData()[i].nData;
if( nGrassSetFlag == 0 )
continue;
tempData.vPosition[0] = (*pChunkStart)->GetGrassClusterData()[i].fPositionX;
tempData.vPosition[1] = (*pChunkStart)->GetGrassClusterData()[i].fPositionY;
tempData.vPosition[2] = (*pChunkStart)->GetGrassClusterData()[i].fPositionZ;
tempData.vPosition[3] = float( (nGrassSetFlag & 0x00FF0000) >> 16 );
// GrassCluster is not inside the camera Frustum, skip this Cluster
AABBox GrassClusterAABB;
GrassClusterAABB += Vector3D(tempData.vPosition[0] - m_vDefaultGrassSize.x, tempData.vPosition[1], tempData.vPosition[2] - m_vDefaultGrassSize.x);
GrassClusterAABB += Vector3D(tempData.vPosition[0] + m_vDefaultGrassSize.x, tempData.vPosition[1] + m_vDefaultGrassSize.y, tempData.vPosition[2] + m_vDefaultGrassSize.x);
if( !GrassClusterAABB.Intersects(viewFrustum) )
continue;
// GrassCluster is too far from the Grass Far Fading distance, skip this Cluster
float fGrassDis = (m_vCameraPos - Vector4D(tempData.vPosition[0], tempData.vPosition[1], tempData.vPosition[2])).GetLength();
if( fGrassDis > CSGPWorldConfig::getInstance()->m_fGrassFarFadingEnd )
continue;
// Too many grass Cluster
if( m_GrassClusterInstanceArray.size() + 1 > INIT_GRASSCLUSTERINSTANCE_NUM )
continue;
tempData.vPackedNormal[0] = (uint8)(((*pChunkStart)->GetGrassClusterData()[i].nPackedNormal & 0xFF000000) >> 24);
tempData.vPackedNormal[1] = (uint8)(((*pChunkStart)->GetGrassClusterData()[i].nPackedNormal & 0x00FF0000) >> 16);
tempData.vPackedNormal[2] = (uint8)(((*pChunkStart)->GetGrassClusterData()[i].nPackedNormal & 0x0000FF00) >> 8);
tempData.vPackedNormal[3] = (uint8)((nGrassSetFlag & 0xFF000000) >> 24);
tempData.vColor[0] = tempData.vColor[1] = tempData.vColor[2] = 1.0f;
tempData.vColor[3] = 1.0f - jlimit(0.0f, 1.0f, (fGrassDis - CSGPWorldConfig::getInstance()->m_fGrassFarFadingStart) / (CSGPWorldConfig::getInstance()->m_fGrassFarFadingEnd - CSGPWorldConfig::getInstance()->m_fGrassFarFadingStart));
tempData.vWindParams[0] = ((nGrassSetFlag & 0x0000FF00) >> 8) / 255.0f;
tempData.vWindParams[1] = 0.0f;
tempData.vWindParams[2] = (nGrassSetFlag & 0x000000FF) / 255.0f;
tempData.vWindParams[3] = 0.0f;
m_GrassClusterInstanceArray.add( tempData );
}
}
// update grass rendering params
m_vTimeParams.x += fDeltaTimeInSecond;
m_vTimeParams.y = pGrass->m_fGrassPeriod;
m_vLightMapTextureDimision.Set(
1.0f / m_pRenderDevice->GetWorldSystemManager()->getTerrain()->GetTerrainWidth(),
1.0f / m_pRenderDevice->GetWorldSystemManager()->getTerrain()->GetTerrainWidth() );
m_vWindDirForce = pGrass->m_vWindDirectionAndStrength;
}