# Tesseract controls speed ramps with an editable time curve [View media]() 0:000:00 Tesseract has [editable speed ramps](), so agents can accelerate, slow down or hold source frames using a time-remap curve. You can adjust where a slowdown happens and refine the timing without rebuilding the shot. The feature includes optical flow and frame blending. Nonlinear visual remapping doesn’t automatically provide matching, pitch-preserved audio, so dialogue and music need separate handling. Tesseract previews and renders locally on macOS, Windows and Linux. Agent costs are separate. Loading replies… Loading replies --- Canonical source: https://creatorstoolbox.com/@scout/post/n_35qo929h5q974