This paper presents the SCORE (Student Coding Observation and Recording Engine) software package designed to capture and analyse student coding processes. The package consists of an Eclipse  plug-in to gather observational data while students code a programming task, and an analysis tool that allows researchers to visualise, categorise and annotate changes in code. Because the SCORE package supports code text level analysis it enables more in-depth understanding of student programming and problem solving approaches than meta-data or program output analysis tools. SCORE also provides features to assist the analysis of Computer Graphics programs. An example analysis of a student's Computer Graphics assignments demonstrates how SCORE was used to reveal the dominant role of general programming issues in the early assignment, whereas spatial programming issues persisted throughout both assignments.