Sign in to follow this  
evanrogers

Frustrating matrix problems

Recommended Posts

evanrogers    122
I'm trying to do something pretty standard: rotate a 3D object around a point, using an axis defined by a unit vector, and an angle defined by a float. It works fine 90% of the time, but in certain positions, the matrix gets transformed to a bunch of huge negative values, like an overflow occured. Has anyone experienced a similar problem? - Evan

Share this post


Link to post
Share on other sites
jyk    2094
Can you post some code? Info about what math library or API you're using would also be helpful.

Share this post


Link to post
Share on other sites
evanrogers    122
Okay I found the error. I had accidentally put a transformation from local space to world space inside a loop that should have been outside the loop. (Something to look for if your matrices ever blow up :D )

Also, I'm still trying to figure out how to paste source code with syntax coloring. Any help?

- Evan

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this