# Attributes Source blocks can generate various attributes such as color, rotation (pan/tilt), gobos, position, pure numerical values, stack assignments and others. You can freely combine different attributes together as they merge into a single stream that then continues further along. Into a lower layer, Fixture or Director. Results from Fixtures are further transformed by the selected output module (ArtNet, Shapes, ...) which only pick the attributes they understand. This means that Stacks are interchageable between different Fixture types. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.scenic.tools/guide/blocks/aspects.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.