how to force texture to update on the GPU (SOLVED)

[roguetreasure]

Sorry I could not find this answer. I did search and found setDirty to force the VBO to update but that doesnt seam to apply in this situation.

I am writing a game in which comets are used to destroy a planet. When the comet impacts I get the planet texture with something like
irr::video::ITexture * poTexture = m_poSceneNode->getMaterial(0).getTexture(0);
then I use the lock texture with poTexture->lock(); and directly draw a crater on the texture. This appears to work except that the change to the texture is not visible. I assume I need something equivilent to setDirty() to force the texture to be updated on the gpu.

I do not want to use decals for this situation because there will be hundreds of decals required before the planet is considered "destroyed"

Please Help.
Thank you

[BlindSide]

It will update when you unlock() it.

[roguetreasure]

My Bad. Thanks Blindside. It's working great after I fixed the code.