OneTask#images
Every post tagged #images. All posts.
A4, Letter and other paper sizes in pixels
How to turn a paper size into pixel dimensions, the A4 and US Letter sizes at 72, 96, 150 and 300 DPI, which DPI to design at for print or screen, and why changing the DPI setting alone does not change an image.
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What a normal map does, and how to make one from a height map
How normal maps fake surface detail in 3D, why they are purple-blue, the difference between height, bump and normal maps, OpenGL versus DirectX green channels, and how to bake one from a greyscale image.
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Upscaling pixel art without blurring it
Why ordinary image resizing turns sprites into mush, how nearest-neighbour scaling keeps pixels crisp, why whole-number factors matter, and how to export sprites at the right size.
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