createTerrainDecal("Ogre/Eyes");
setTerrainDecal(613, 933, 64);
void BasisManager::createTerrainDecal(char* szMaterialName)
{
mTerrainDecal = new Ogre::ManualObject("decal");
mSceneMgr->getRootSceneNode()->createChildSceneNode()->attachObject(mTerrainDecal);
mTerrainDecal->setCastShadows(false);
int x_size = 1;
int z_size = 1;
mTerrainDecal->begin(szMaterialName, Ogre::RenderOperation::OT_TRIANGLE_LIST);
for (int i=0; i<x_size; i++)
{
for (int j=0; j<=z_size; j++)
{
mTerrainDecal->position(Ogre::Vector3(i, 0, j));
mTerrainDecal->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++)
{
mTerrainDecal->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);
}
}
mTerrainDecal->end();
}
//------------------------------------------------------------------------------------------
void BasisManager::setTerrainDecal(float x, float z, float radius)
{
Ogre::Real x1 = x - radius;
Ogre::Real z1 = z - radius;
int x_size = 64;
int z_size = 64;
Ogre::Real x_step = radius * 2/ x_size;
Ogre::Real z_step = radius * 2/ z_size;
mTerrainDecal->beginUpdate(0);
for (int i=0; i<=x_size; i++)
{
for (int j=0; j<=z_size; j++)
{
mTerrainDecal->position(Ogre::Vector3(x1, HeightFunction::getTerrainHeight(x1, z1)+0.5, z1));
mTerrainDecal->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++)
{
mTerrainDecal->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);
}
}
mTerrainDecal->end();
}