Adobe, Inc.

Dharmendra Kumar

Jonathan David Herbach

Vivek Kumar Pai

A coverage based approach to image rendering using opacity values is described. In one embodiment, a digital medium environment is configured to render an image. A plurality of layers of the image are rendered in succession as following a defined depth ordering for the plurality of the layers. Effective coverage and color is determined of a plurality of objects, together, for pixels within respective ones of the plurality of layers of the image. Contribution is then controlled of the determined coverage and color of the objects to opacity values and color values in a buffer for respective pixels. This control is based on whether the opacity values indicate that the respective pixels are opaque.

Coverage based approach to image rendering using opacity values

One exemplary embodiment involves receiving a request for a document key for accessing a document on a client device. The request comprises a user identity identifying a requester requesting access to the document. The request also comprises information about the document. The exemplary embodiment further involves determining, at the server, whether access to the document by the requester is permitted. And, the exemplary embodiment further involves, if access to the document is permitted computing, at the server, the document key using the user identity and using the information about the document. The document key is document specific and, prior to the computing of the document key, the document key is not stored for access by the server. The exemplary embodiment further involves responding to the request by providing the document key for use in accessing the document on the client device.

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Bengaluru, India

Dharmendra Kumar