Hello all, first post!

I am having trouble with GEM and its camera movement. What I ultimately want to do is control the camera with the wasd key and mouse for left right up down angles.( much like a FPS game) The patch I've been working on so far uses the message view $1 $2 $3 $4 $5 $6 $7 $8 $9 and a counter connected to the message for control but the only problem I'm having is that I just cannot figure out the math to move in relation with the mouse position and the first X Y Z movement.( basically because I mapped the keys to the XYZ it is actually the absolute value rather than in relationship with where the camera is pointing) Its pretty hard to explain but I'll post the patch I've worked on. Any suggestions are welcome!(wasdcam_00.pd

@y0oleh I believe it would be important to have one place where the current position is stored. If the mouse or keys make an input, change the position there and update the image.

@ingox yeah seems like the right direction I'm researching how game engines do it and keep bumping into the getglobaltransform command when it comes to binding keys with oh well I guess this means more reading for me! Still if anyone has any suggestions I wide open!

@y0oleh Yes, all about scale. This might help with the relationship between pixels (from [gemmouse]) and GUI units (for [translateXYZ] etc.).......wasd.zip
I recommend https://puredata.info/downloads/extended-view-toolkit for tools to do many useful things with GEM.
The files in the zip come from there.
If you can get a copy of the "GEM Pd Ebook" this is from there. You can normalize [gemmouse] with it's arguments, to match it to the window. That simplifies the calculations.

"The calculation following the gemmouse object is the
same as the previous section. The scaling from the range of 1 to the range of 8 is
dependent on the window size. In the default square window of 500 by 500 pixels,
we are using the window margins from -4 to 4."
David.

@y0oleh Just a note..... The Gem_Pd_Ebook has been republished by Curiousart and can be found again here........ https://curiousart.org/digital_proj/pd_eBook.pdf
David.