CoppeliaSim forums

Hello, I am using Vrep for my robot ball-hitting task with machine learning stuff. I am using c++ plugin and bullet 2.83 engine. Because I want to speed up the simulation. so, I check the "Toggle visualization" to shut down the visualization. However, I noticed that when visualization is s...

Hi,

Last night I run the simulation overnight and the same problems happened again after 30 hours in the simulation :(

Hi, Thank you for your reply. I am using gdb as a debugger and git as version control tool, but the debugger could only tell me that I got a "free() invalid pointer" bug from the two libraries(liblua5.1.so, libv_rep.so). And as I mentioned before, I am using modern c++, so there is no &quo...

Hi, I am using vrep c++ plugin in robot machine learning stuff and it always crashes randomly after thousands of training episodes. My system is Ubuntu 18.04 and my vrep is latest version. And I googled a little bit and found a way to write a seg fault handler to trace where the crash happened and h...

Hi fferri,

Thank you for your reply. Yes I also did the same thing to increase the thickness of the racket geometry. Now this problem has been temporarily solved.

Have a nice day!

Fitz

Hello, I am using Vrep(with Bullet 2.83) to simulate a ball hitting behavior of a robot arm. Because the relative speed between the ball and the racket is relative large(10m/s), and the racket is thin (1cm thickness), sometimes the ball just fly cross the racket without collision and returning. Some...

Thank you very much, your answer is really what I want,

Best Regards,
Fitz

Hello everyone in the Forum, I am using Vrep Plugin(C++) to run a simulation. My robot has about 10 ultrasonic sensors, which I use primitive sensor to replace their functionality in the simulation. I found an issue, which really bothers me. I found that, the first time when the primitive sensor det...