16384 is irrelevant here since we chop down to what we need later (and don't need to allocate any memory until then)Ħ) I read the first element of my list of rects to fill, place the biggest non-placed sprite that fits in the top left corner of the rect, and subdivide the rest into two rects, one to the right for the remaining width and one to the bottom for the remaining height.ħ) Once every sprite has been placed, I create a texture with a width of 1024 and a height of the next power of 2 from how high my texture needs to be to contain everything.Ĩ) I copy from the effective parts of my many PNG buffers to my single large atlas, ignoring the marginsĩ) I create a DirectX11 constant buffer containing an atlas info array: position, size, offset (to re-add removed margins, and to place centered sprites at their center) and 64 bits of padding because of constant buffer restrictions. I chose 1024 wide because I'm simulating 320x200 VGA games, so I can fit 3 full-screen pics of title / intro / stuff wide in my atlas. I start with a single rect of 1024 by 16384. I'm using 8-bit sprites so index zero is transparent.Ĥ) I sort sprites by effective height (transparent margins don't count) from tallest to shortestĥ) I maintain a list of rects to fill. (So game specific code needs to have some form of for loop calling the load fonction on all the rects)Ģ) I open the files with code from as 8-bit indexedģ) I check the size of the top, bottom, left and right edge margins. ![]() Sprites from a sheet specify a rectangle to grab from the sheet. Feedback Friday Screenshot Saturday Soundtrack Sunday Marketing Monday WIP Wednesday Daily Discussion Quarterly Showcase Related communities 1ġ) I add sprite filenames to a list of sprites to load, along with centering parameters. For questions, get in touch with mods, we're happy to help you. Free assets OK, be sure to specify license. If you need to use screenshots, that's ok so long as is illustrates your issues.ĭo not solicit employment. Use discord, /r/indiegames, /r/playmygame or /r/gamedevscreens.īe specific about your question. Feedback, praise, WIP, screenshots, kickstarters, blogs, memes, "play my game", twitch streams. The Microsoft Windows file extension for this data format is '.dds'.Īdobe Photoshop, Paint Shop Pro, the GIMP, GraphicConverter, Helicon Filter, ImageMagick, Inkscape, IrfanView, Pixel image editor, Paint.NET, Xara Photo & Graphic Designer.No show-off posts. The DirectDraw Surface format is useful for storing graphical textures and cubic environment maps as a data file, both compressed and uncompressed. PNG was designed for transferring images on the Internet, not for professional-quality print graphics, and therefore does not support non-RGB color spaces such as CMYK. PNG supports palette-based images (with palettes of 24-bit RGB or 32-bit RGBA colors), grayscale images (with or without alpha channel), and full-color non-palette-based RGB images (with or without alpha channel). The DirectDraw Surface container file format (uses the filename extension DDS), is a Microsoft format for storing data compressed with the proprietary S3 Texture Compression (S3TC) algorithm, which can be decompressed in hardware by GPUs. MNG is an extension to PNG that does it was designed by members of the PNG Group. PNG itself does not support animation at all. PNG was created as an improved, non-patented replacement for Graphics Interchange Format (GIF), and is the most used lossless image compression format on the Internet. Portable Network Graphics (PNG) is a raster graphics file format that supports lossless data compression. Click icon to show file QR code or save file to cloud storage services such as Google Drive or Dropbox. The output files will be listed in the "Conversion Results" section. It will automatically retry conversion on another server if one fails, please be patient while converting. Click the "Convert Now!" button to start batch conversion. The target image format can be JPG, PNG, TIFF, GIF, HEIC, BMP, PS, PSD, WEBP, TGA, DDS, EXR, J2K, PNM, SVG, etc.ģ. If this value is blank, the converter will use the estimated quality of your input image if it can be determined, otherwise 92. The value ranges from 1 (lowest image quality and highest compression) to 100 (best quality but least effective compression). The image quality option only works on a few image formats such as JPG, WEBP or AVIF. ![]() You can use the original image size or select the "Change width and height" option and enter a custom image size. Set target image format, image quality and image size. You can use file analyzer to get source image's detailed information such as image size, resolution, quality and transparent color.Ģ. Click the "Choose Files" button to select multiple files on your computer or click the "URL" button to choose an online file from URL, Google Drive or Dropbox.
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