Hi all, I've been following this discussion, as I've recently run into the same issue myself. As Radu mentioned, I've double-checked that the directory and full path are correctly set. Chrono seems to locate other .obj files in the same folder without any trouble. Typically, if there's a file missing, I encounter an error message along the lines of "no such file or directory".
However, since this particular error mentions "tiny_obj", I'm wondering if the problem might lie with the .obj file itself. Any insight into this aspect of the issue? Thanks a lot for any help or suggestions! Sarina, On Wednesday, January 10, 2024 at 9:53:44 AM UTC-7 Radu Serban wrote: > Davide, > > > > I take it that you are working now **outside** the Chrono source and > build trees. And yet, you still want to use data files from the Chrono > data/ directory. The error message from tiny_obj is pretty clear: it > cannot find the specified OBJ file at the given path **relative** to > where your executable is. > > > > The default path for the Chrono data/ directory is set up so that it works > fine for the demos executable as they are created in the Chrono build > tree. > > If you work now in some other location, you must tell Chrono where to find > those files. You have 2 options: > > - You can provide the full path to the data files (e.g. to the > location of that file in the data/ directory in the Chrono source tree). > - If you want to use things such as > chrono::vehicle:: > vehicle::GetDataFile(“hmmwv/hmmwv_tire_left.obj”); > then you must first call chrono::vehicle::SetDataPath(), typically > right at the top of your main function, to specify the root path for your > vehicle data directory. > - Similarly, if you want to access data files using something like > chrono:: GetChronoDataFile(“textures/pink.png”) > then you must first call chrono:: SetChronoDataPath() to specify the > root path for your data directory. > > > > See for example how that is done in the template_project > <https://github.com/projectchrono/chrono/tree/main/template_project> > distributed with Chrono. > > > > --Radu > > > > > > *From:* [email protected] <[email protected]> *On > Behalf Of *Davide > *Sent:* Wednesday, January 10, 2024 4:20 PM > *To:* ProjectChrono <[email protected]> > *Subject:* [chrono] Error loading obj file > > > > Hi all, > > when I try to build demos involving the HMMWV vehicle or parts of it such > as "demo_VEH_HMMWV" or "demo_VEH_Multicore_TireTestRig", the following > error message is shown: > > > > "tiny_obj error message: Cannot open file > [../data/vehicle/hmmwv/hmmwv_tire_left.obj]" > > > > Given that all the demos work fine when I installed Chrono, I'm not > understanding what could be the problem. Might someone give me a help? > > Thank you in advance! > > Davide > > > > -- > You received this message because you are subscribed to the Google Groups > "ProjectChrono" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/projectchrono/ebc711cf-151f-4ebc-8c64-01d82e6b1b0bn%40googlegroups.com > > <https://groups.google.com/d/msgid/projectchrono/ebc711cf-151f-4ebc-8c64-01d82e6b1b0bn%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "ProjectChrono" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/projectchrono/66a49c54-e305-4187-bb25-ab4f195ab7a2n%40googlegroups.com.
