1) effect allows NULL to be passed for last vector effect_layer requires a vector. Not sure which is correct but they are different.

2) in some cases effect_layer will not render particles unless there is a panel created. Panel does not need to be visible. I have code that shows this but it it several thousand lines. In short test programs effect_layer works without a panel. The particle functions are being called in both cases (with/without panel) but are not rendering.

1) Use "nullvector". But you're right, there's no reason why effect_layer requires a vector - this restriction will be removed.

2) There must be some cause of that problem in the rest of the code. We'd need to look into an example.

I can send you the project that causes this behavior. Just let me know what address to send it to...

If it's less than 10 MB, you can send it to support (at) 3dgamestudio.net. Otherwise, please ftp upload it here:

ftp.coniserver.net, user: anonymous, pass: anonymous

OK I will zip it up and send it by email asap. The zip will have several directories in it but the main code will be in the "mouse" directory.

OK sent... main file is mousetest.c

Thanks, we got it and will look into it in the next days.

It was indeed a bug. This will be fixed for the next release.

Thanks!