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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Some `shader()` examples behave unexpectedly at higher pixel densities","articleBody":"### Most appropriate sub-area of Processing 4?\n\nOpenGL\n\n### Processing version\n\n4.4.3\n\n### Operating system\n\nTested on macOS 13.4\n\n### Steps to reproduce this\n\n1. Open Processing 4.4.3\n\n2. Run examples in `Topics/Shaders` (for example Conway);\n\n3. Notice the rendering is wrong\n\n\n### snippet\n\nn/a\n\n\n### Additional context\n\nSince version 4.4.3, the default `pixelDensity` is set to match the display's density. During testing, we found that some shader examples break on high-density displays because they implicitly relied on `pixelDensity` being set to 1.\n\nSome investigation in how `shader()` is implemented and what assumptions are made there might be needed.\n\n### Would you like to work on the issue?\n\nThis can be assigned ","author":{"url":"https://github.com/SableRaf","@type":"Person","name":"SableRaf"},"datePublished":"2025-04-25T12:32:57.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":12},"url":"https://github.com/1063/processing4/issues/1063"}