Animated video grid in After Effects | SampleImage expression tutorial

It will be quite hard for weak computers, so be patient, even I have problems with the preview, but it renders pretty fast. I hope you enjoy this video! If you know what I can improve in my videos, please leave a comment 🙏 My Instagram: Position expression: // Setting parameters shapeCompWidth = 50; // Shape composition width compWidth = 1000; // Main composition width // Calculate the number of items per row itemsPerRow = (compWidth / shapeCompWidth); // Calculate how many items fit in one row based on the composition width and spacing // Calculate the position x = (index - 1) % itemsPerRow * shapeCompWidth; // Calculate the x position using the index, spacing, and number of items per row y = ((index - 1) / itemsPerRow) * shapeCompWidth; // Calculate the y position using the index, spacing, and number of items per row [x, y] // Return the calculated position as an array Time-remap expression: // Define the target layer target = (“Footage“); // Position for sampling the value samplePoint = [[0], [1]]; // Sampling size sampleSize = [1, 1]; // Get the value from the target layer sample = (samplePoint, sampleSize); // Convert the value for use in time remap // Assuming we're using the red channel (sample[0]) timeRemapValue = sample[0] * * 100; // Example scaling // Return the value for time remap timeRemapValue