Introduce yourself briefly, then highlight your portfolio by mentioning key projects and the techniques you specialize in, such as design methodologies or specific software. Express interest in the company's work, and ask insightful questions about their projects, team dynamics, or future goals to demonstrate your engagement

Very easy process, be prepared with portfolio. Show emphasis on 3D model-making. You will get the most by having hand-work in portfolio. They will not negotiate salary. There may be several rounds of interviews depending on how you were brought into interview.