Worked on stabilizing horizon rendering within the OpendTect/OpendTect repository, focusing on improving the reliability of the 3D visualization pipeline. Addressed a critical bug by introducing a null check for the zaxistransform pointer in HorizonDisplay::drawHorizonOnZSlice, which prevented potential crashes during Z-slice horizon rendering. Utilized C++ and 3D graphics programming skills to ensure robust error handling and maintain code quality. Validated the solution by importing a comprehensive set of 3D horizons from the F3 training dataset, confirming stability and absence of errors. Collaborated on code review and differential revision to enhance maintainability and support ongoing development efforts.