void _drawGridPlane(void)
{
Ogre::ManualObject* gridPlane = mSceneMgr->createManualObject("GridPlane");
Ogre::SceneNode* gridPlaneNode = mSceneMgr->getRootSceneNode()->createChildSceneNode("GridPlaneNode");
Ogre::MaterialPtr gridPlaneMaterial = Ogre::MaterialManager::getSingleton().create("GridPlanMaterial", "General");
gridPlaneMaterial->setReceiveShadows(false);
gridPlaneMaterial->getTechnique(0)->setLightingEnabled(true);
gridPlaneMaterial->getTechnique(0)->getPass(0)->setDiffuse(1, 1, 1, 0);
gridPlaneMaterial->getTechnique(0)->getPass(0)->setAmbient(1, 1, 1);
gridPlaneMaterial->getTechnique(0)->getPass(0)->setSelfIllumination(1, 1, 1);
gridPlane->begin("GridPlaneMaterial", Ogre::RenderOperation::OT_LINE_LIST);
for (int i = 0; i < 21; i++)
{
gridPlane->position(-500.0f, 0.0f, 500.0f - i * 50);
gridPlane->position(500.0f, 0.0f, 500.0f - i * 50);
gridPlane->position(-500.f + i * 50, 0.f, 500.0f);
gridPlane->position(-500.f + i * 50, 0.f, -500.f);
}
gridPlane->end();
gridPlaneNode->attachObject(gridPlane);
}
ManualObject* ShowNormalsGenerator::buildManualObject() const
{
if (mTriangleBuffer == NULL)
OGRE_EXCEPT(Ogre::Exception::ERR_INVALID_STATE, "The input triangle buffer must not be null", "Procedural::ShowNormalsGenerator::buildManualObject()");
SceneManager* sceneMgr = Ogre::Root::getSingleton().getSceneManagerIterator().begin()->second;
if (sceneMgr == NULL)
OGRE_EXCEPT(Ogre::Exception::ERR_INVALID_STATE, "Scene Manager must be set in Root", "Procedural::ShowNormalsGenerator::buildManualObject()");
ManualObject* manual = sceneMgr->createManualObject();
manual->begin("BaseWhiteNoLighting", RenderOperation::OT_LINE_LIST);
const std::vector<TriangleBuffer::Vertex>& vertices = mTriangleBuffer->getVertices();
for (std::vector<TriangleBuffer::Vertex>::const_iterator it = vertices.begin(); it!= vertices.end(); ++it)
{
manual->position(it->mPosition);
manual->position(it->mPosition + it->mNormal * mSize);
if (mVisualStyle == VS_ARROW)
{
Vector3 axis2 = it->mNormal.perpendicular();
Vector3 axis3 = it->mNormal.crossProduct(axis2);
manual->position(it->mPosition + it->mNormal * mSize);
manual->position(it->mPosition + (.8f * it->mNormal + .1f * axis2) * mSize);
manual->position(it->mPosition + it->mNormal * mSize);
manual->position(it->mPosition + .8f * (it->mNormal - .1f * axis2) * mSize);
manual->position(it->mPosition + it->mNormal * mSize);
manual->position(it->mPosition + .8f * ( it->mNormal + .1f * axis3)* mSize);
manual->position(it->mPosition + it->mNormal * mSize);
manual->position(it->mPosition + .8f * (it->mNormal - .1f * axis3)* mSize);
}
}
manual->end();
return manual;
}