You'd first have to know the size of the board. Then just use a ray trace to capture where on the board you are clicking and convert to 2D coordinates. Then using a RenderTarget for the board texture, you should be able to edit the image directly pixel by pixel. I don't remember the exact functions anymore, but it is possible.
On Sun, Oct 3, 2010 at 2:23 PM, Trevor 'Drak' <hlco...@wowway.com> wrote: > I'm sure most of you have seen the DNF game play videos. If not, you're > crazy and need to watch this: http://www.youtube.com/watch?v=SDjJRRbOvzU > Skip to about 4 minutes for the gameplay. As you can see there is a > whiteboard that you can draw/erase (change colors?) and it's pretty darn > realistic. > > Soon as I saw this awhile back from a different video, I attempted to > replicate it with in Source. > All I managed todo was create a 3D VGUI Screen (assuming this is the best > way) with a whiteboard background. And then looked within the Alien Swarm > SDK > to see how the radar, where you can draw on it, was done. Pretty > unsuccessful. Got nowhere close. I skipped and tried figuring out how I > could change my mouse cursor on the screen to a pen, or eraser and such. > Unable to figure it out. > > Would anybody know how to even get something close to this, or just point > in any direction that could possibly lead me into figuring it out? > Thanks! > _______________________________________________ > To unsubscribe, edit your list preferences, or view the list archives, > please visit: > http://list.valvesoftware.com/mailman/listinfo/hlcoders > > _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders
