Ogitor 场景编辑器之贴花

]	mDecal = Ogitors::OgitorsRoot::getSingletonPtr()->GetSceneManager()->createManualObject(sName);

mDecal->setCastShadows(false);
mDecal->setDynamic(true);
mDecal->setRenderQueueGroup(RENDER_QUEUE_WORLD_GEOMETRY_2);

if (uShapeFlag == RenderOperation::OT_TRIANGLE_LIST)
{
int x_size = 4;
int z_size = 4;
mDecal->begin("Decal" , RenderOperation::OT_TRIANGLE_LIST);

for (int i=0; i<x_size; i++)
{
for (int j=0; j<=z_size; j++)
{
mDecal->position(Ogre::Vector3(i, 0, j));
mDecal->textureCoord((float)i / (float)x_size, (float)j / (float)z_size);
}
}

for (int i=0; i<x_size; i++)
{
for (int j=0; j<z_size; j++)
{
mDecal->quad( i * (x_size+1) + j, i * (x_size+1) + j + 1,
(i + 1) * (x_size+1) + j + 1,(i + 1) * (x_size+1) + j);
}
}

mDecal->end();
}

Ogitors::OgitorsRoot::getSingletonPtr()->GetSceneManager()->getRootSceneNode()->createChildSceneNode()->attachObject(mDecal);

]	int x_size = 4;
int z_size = 4;
float radius = 1.57f;
float offset = 0.2f;

mDecal->beginUpdate(0);

if ( mPositions.size() > 0)
{
float x = mPositions[0].x;
float y = mPositions[0].y;
float z = mPositions[0].z;

Ogre::Real x1 = x - radius;
Ogre::Real z1 = z - radius;

Ogre::Real x_step = radius * 2/ x_size;
Ogre::Real z_step = radius * 2/ z_size;

for (int i=0; i<=x_size; i++)
{
for (int j=0; j<=z_size; j++)
{
mDecal->position(Ogre::Vector3(x1, OgitorsRoot::getSingletonPtr()->getTerrainHeight(x1, z1) + offset, z1));
mDecal->textureCoord((float)i / (float)x_size, (float)j / (float)z_size);

z1 += z_step;
}

x1 += x_step;
z1 = z - radius;
}

for (int i=0; i<x_size; i++)
{
for (int j=0; j<z_size; j++)
{
mDecal->quad( i * (x_size+1) + j, i * (x_size+1) + j + 1,
(i + 1) * (x_size+1) + j + 1, (i + 1) * (x_size+1) + j);
}
}
}

mDecal->end();