const Ogre::Vector3 Mesh::getWorldSpacePosition(const Ogre::Vector3& ObjectSpacePosition) const
{
Ogre::Matrix4 mWorldMatrix;
if (mCreated)
{
#if OGRE_VERSION_MAJOR >= 1 && OGRE_VERSION_MINOR >= 7
mWorldMatrix = mEntity->getParentSceneNode()->_getFullTransform();
#else
mEntity->getParentSceneNode()->getWorldTransforms(&mWorldMatrix);
#endif
}
else
{
Ogre::SceneNode *mTmpSN = new Ogre::SceneNode(0);
mTmpSN->setPosition(mHydrax->getPosition());
#if OGRE_VERSION_MAJOR >= 1 && OGRE_VERSION_MINOR >= 7
mWorldMatrix = mTmpSN->_getFullTransform();
#else
mTmpSN->getWorldTransforms(&mWorldMatrix);
#endif
delete mTmpSN;
}
return mWorldMatrix.transformAffine(ObjectSpacePosition);
}
const Ogre::Vector3 Mesh::getWorldSpacePosition(const Ogre::Vector3& ObjectSpacePosition) const
{
Ogre::Matrix4 mWorldMatrix;
if (mCreated)
{
mWorldMatrix = mEntity->getParentSceneNode()->_getFullTransform();
}
else
{
Ogre::SceneNode *mTmpSN = new Ogre::SceneNode(0);
mTmpSN->setPosition(mHydrax->getPosition());
mWorldMatrix = mTmpSN->_getFullTransform();
delete mTmpSN;
}
return mWorldMatrix.transformAffine(ObjectSpacePosition);
}
void SimpleGrid::update(const Ogre::Real &timeSinceLastFrame)
{
if (!isCreated())
{
return;
}
Module::update(timeSinceLastFrame);
// Update heigths
int i = 0, v, u;
if (getNormalMode() == MaterialManager::NM_VERTEX)
{
Mesh::POS_NORM_VERTEX* Vertices = static_cast<Mesh::POS_NORM_VERTEX*>(mVertices);
if (mOptions.ChoppyWaves)
{
for(int i = 0; i < mOptions.Complexity*mOptions.Complexity; i++)
{
Vertices[i] = mVerticesChoppyBuffer[i];
Vertices[i].y = mNoise->getValue(Vertices[i].x, Vertices[i].z) * mOptions.Strength;
}
}
else
{
for(int i = 0; i < mOptions.Complexity*mOptions.Complexity; i++)
{
Vertices[i].y = mNoise->getValue(Vertices[i].x, Vertices[i].z) * mOptions.Strength;
}
}
}
else if (getNormalMode() == MaterialManager::NM_RTT)
{
Mesh::POS_VERTEX* Vertices = static_cast<Mesh::POS_VERTEX*>(mVertices);
// For object-space to world-space conversion
// RTT normals calculation needs world-space coords
Ogre::Vector3 p = Ogre::Vector3(0,0,0);
Ogre::Matrix4 mWorldMatrix;
mHydrax->getMesh()->getEntity()->getParentSceneNode()->getWorldTransforms(&mWorldMatrix);
for(int i = 0; i < mOptions.Complexity*mOptions.Complexity; i++)
{
p.x = Vertices[i].x;
p.y = 0;
p.z = Vertices[i].z;
// Calculate the world-space position
mWorldMatrix.transformAffine(p);
Vertices[i].y = mNoise->getValue(p.x, p.z) * mOptions.Strength;
}
}
// Smooth the heightdata
if (mOptions.Smooth)
{
if (getNormalMode() == MaterialManager::NM_VERTEX)
{
Mesh::POS_NORM_VERTEX* Vertices = static_cast<Mesh::POS_NORM_VERTEX*>(mVertices);
for(v=1; v<(mOptions.Complexity-1); v++)
{
for(u=1; u<(mOptions.Complexity-1); u++)
{
Vertices[v*mOptions.Complexity + u].y =
0.2f *
(Vertices[v *mOptions.Complexity + u ].y +
Vertices[v *mOptions.Complexity + (u+1)].y +
Vertices[v *mOptions.Complexity + (u-1)].y +
Vertices[(v+1)*mOptions.Complexity + u ].y +
Vertices[(v-1)*mOptions.Complexity + u ].y);
}
}
}
else if (getNormalMode() == MaterialManager::NM_RTT)
{
Mesh::POS_VERTEX* Vertices = static_cast<Mesh::POS_VERTEX*>(mVertices);
for(v=1; v<(mOptions.Complexity-1); v++)
{
for(u=1; u<(mOptions.Complexity-1); u++)
{
Vertices[v*mOptions.Complexity + u].y =
0.2f *
(Vertices[v *mOptions.Complexity + u ].y +
Vertices[v *mOptions.Complexity + (u+1)].y +
Vertices[v *mOptions.Complexity + (u-1)].y +
Vertices[(v+1)*mOptions.Complexity + u ].y +
Vertices[(v-1)*mOptions.Complexity + u ].y);
}
}
}
}
// Update normals
_calculeNormals();
// Perform choppy waves
_performChoppyWaves();
// Upload geometry changes
mHydrax->getMesh()->updateGeometry(mOptions.Complexity*mOptions.Complexity, mVertices);
}
