Multiple image projection method for additive manufacturing

A method comprising:

• a. providing an additive manufacturing system, comprising:
• an image projection system comprising a plurality of image projectors;
• and
• an image display subsystem;
• b. projecting a composite image onto a build area within a resin pool using the image projection system, wherein:
• the image projection system is controlled by the image display subsystem;
• the composite image comprises a plurality of sub-images arranged in an array;
• two or more adjacent sub-images in the array overlap at two or more sub-image edges;
• and
• each sub-image is projected onto a portion of the build area using one of the plurality of image projectors;
• and
• c. adjusting properties and aligning a position of each sub-image in the array using a set of filters comprising:
• an irradiance mask that normalizes irradiance;
• a gamma adjustment mask that adjusts sub-image energy based on a reactivity of the resin;
• a warp correction filter that provides geometric correction;
• and
• an edge blending bar at one or more sub-image edges.