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    • By 51mon
      Hey
      I'm dealing with ribbons following the shape of multiple spline segments. It's straightforward to compute the direction at any point along the spline. However the ribbon also got a flat shape and I'm struggling with finding a way to compute the angle of the ribbon in the plane perpendicular to the direction.
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      The approach above is kind of a global approach and I'm thinking if there's a way to append some info to each spline segment to remedy the issue.
      Anyhow I wanted to post this question in case anyone had a similar problem that they solved or maybe anyone know some web resource dealing with this issue?
       
      Thanks!
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    • By lxjk
      Hi guys,
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      On top of that, I use distance to camera rather than depth for near/far test (aka. sliced by spheres).
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      Performance-wise I get around 15% improvement over sphere-frustum test. You can also see how a single light performs as the following: from left to right (1) standard rendering of a point light; then tiles passed the test of (2) sphere-frustum test; (3) cone test; (4) spherical-sliced cone test
       

       
      I put the details in my blog post (https://lxjk.github.io/2018/03/25/Improve-Tile-based-Light-Culling-with-Spherical-sliced-Cone.html), GLSL source code included!
       
      Eric
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Linear Algebra New 3D math library for C99

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Hello,

 

I was wrote a math library for C, and saw a thread about this,

I wanted to share this library, maybe helps who working with C like me

and looking for 3D math library for C89/C99, it is really easy to use and really fast!

 

Repo: https://github.com/recp/cglm

 

All funcs are inlined but you can prefer to use pre-compiled version of all funcs

For instance glm_mat4_mul is inilne and glmc_mat4_mul is pre-compiled

 

if you don't need pre-compiled then you dont need to build it.

 

Library uses SIMD/AVX if available but in the future neon maybe supported

All functions are optimized and there are lot of convenient funcs. 

 

Features are listed in repo's README so I think there is no need to put them here

 

Just wanted to share my stuff to help people who are looking new lib or lib for C

Edited by recp

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