B-Spline Renderer

Rendering 3D B-splines in C++ using Qt, OpenGL and Eigen.

B-splines are parametric curves that consist of several Bézier curves whose control points satisfy specific conditions. I used cubic Bézier curves for the interpolation of knots. Given a set of knots, a cubic Bézier curve is generated between each pair of knots. Then, these Bézier curves are glued together to form the final curve, the B-spline. The algorithm for the generation of the curves can be found here. Although it is about 2D B-splines, interpolating 3D B-splines is not so different.

Build

1. Install CMake 3.25.1 or above.
2. Install Visual Studio 2022 and MSVC C++ v143 Compiler.
3. Install Qt 6.7.3 MSVC2022 64bit kit.
4. Set environment variable Qt6_DIR as C:\Qt\6.7.3\msvc2022_64.
5. Clone the repo git clone https://github.com/berkbavas/BSplineRenderer.git.
6. Create a folder mkdir Build.
7. Enter the folder cd Build.
8. Run CMake cmake ...
9. Open BSplineRenderer.sln with Visual Studio 2022.
10. Build with Release configuration.

Video

BSplineRenderer.mp4