本文整理汇总了C++中ogre::ManualObject::beginUpdate方法的典型用法代码示例。如果您正苦于以下问题：C++ ManualObject::beginUpdate方法的具体用法？C++ ManualObject::beginUpdate怎么用？C++ ManualObject::beginUpdate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ogre::ManualObject的用法示例。
在下文中一共展示了ManualObject::beginUpdate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: UpdateTerrain
// Given a scene node for a terrain, find the manual object on that scene node and
// update the manual object with the heightmap passed. If there is no manual object on
// the scene node, remove all it's attachments and add the manual object.
// The heightmap is passed in a 1D array ordered by width rows (for(width) {for(length) {hm[w,l]}})
// This must be called between frames since it touches the scene graph
// BETWEEN FRAME OPERATION
void Region::UpdateTerrain(const int hmWidth, const int hmLength, const float* hm) {
Ogre::SceneNode* node = this->TerrainSceneNode;
LG::Log("Region::UpdateTerrain: updating terrain for region %s", this->Name.c_str());
if (node == NULL) {
LG::Log("Region::UpdateTerrain: terrain scene node doesn't exist. Not updating terrain.");
return;
}
// Find the movable object attached to the scene node. If not found remove all.
if (node->numAttachedObjects() > 0) {
Ogre::MovableObject* attached = node->getAttachedObject(0);
if (attached->getMovableType() != "ManualObject") {
// don't know why this would ever happen but clean out the odd stuff
LG::Log("Found extra stuff on terrain scene node");
node->detachAllObjects();
}
}
// if there is not a manual object on the node, create a new one
if (node->numAttachedObjects() == 0) {
LG::Log("Region::UpdateTerrain: creating terrain ManualObject for region %s", this->Name.c_str());
// if no attached objects, we add our dynamic ManualObject
Ogre::ManualObject* mob = LG::RendererOgre::Instance()->m_sceneMgr->createManualObject("ManualObject/" + node->getName());
mob->addQueryFlags(Ogre::SceneManager::WORLD_GEOMETRY_TYPE_MASK);
mob->setDynamic(true);
mob->setCastShadows(true);
mob->setVisible(true);
node->attachObject(mob);
// m_visCalc->RecalculateVisibility();
}
Ogre::ManualObject* mo = (Ogre::ManualObject*)node->getAttachedObject(0);
// stuff our heightmap information into the dynamic manual object
mo->estimateVertexCount(hmWidth * hmLength);
mo->estimateIndexCount(hmWidth * hmLength * 6);
if (mo->getNumSections() == 0) {
// if first time
mo->begin(LG::GetParameter("Renderer.Ogre.DefaultTerrainMaterial"));
}
else {
mo->beginUpdate(0); // we've been here before
}
int loc = 0;
for (int xx = 0; xx < hmWidth; xx++) {
for (int yy = 0; yy < hmLength; yy++) {
mo->position((Ogre::Real)xx, (Ogre::Real)yy, hm[loc++]);
mo->textureCoord((float)xx / (float)hmWidth, (float)yy / (float)hmLength);
mo->normal(0.0, 1.0, 0.0); // always up (for the moment)
}
}
for (int px = 0; px < hmLength-1; px++) {
for (int py = 0; py < hmWidth-1; py++) {
mo->quad(px + py * hmWidth,
px + (py + 1) * hmWidth,
(px + 1) + (py + 1) * hmWidth,
(px + 1) + py * hmWidth
);
}
}
mo->end();
return;
}