The result was compelling: just over 20MB of total texture data was reduced to a 9MB zip file. Discussion in 'Android' started by RyanZimmerman87, Dec 29, 2013. Imagination develops the PowerVR GPU and created a proprietary PVRTC texture compression format. The behavior is that from now on, devices with OpenGL ES 3 will only support ETC2 with hardware support, ETC1 will use software decoding. Regarding naming, there is currently ETC1, and ETC2 being backwards-compatible with ETC1 although EAC being very similar, is used for 1/2 channel compression. Higher bandwidth version of much of this information. This resulted in the mid-2012 launch of the ASTC texture compression format. This format is supported by all Android phones. To store alpha information, there is either 1-bit alpha (using 1bpp of the encoding space), or a second 4bpp alpha-only block for high quality alpha encoding. That is a reasonable approach on desktop platforms, but on mobile devices the transcode can be more costly in time and battery. At its most basic, it is a fixed 4x4 block format that uses 4bpp to encode each RGB block. However, with the addition of HDMI, you could be running on a 50" 1080P television, where pixels are large once again. With the ability to zoom and pan simultaneously across all three views, it makes it very easy to review the results of a single compression run. This directory will be used to hold default textures (probably in ETC1 or ETC2 format). I am not a pro, but your message seems to state that the ATC Format is not natively supported (therefore baaaaad). The upper compressions Format on the lits is the worst ETC1. File size is critical with modern content that can be a gigabyte or more in size. Fortnite for Android with device check disabled Notes and warnings - READ THESE FIRST! I thought ETC2 was backwards compatible with ETC1, are you telling me that unity will decompress an ETC2 into a full true color image in the ram? That means it was uncompressed. ETC2 is supported by all devices that support GLES3. This jumps ahead of the discussion in the following chapters, and describes one possible approach to immediately leverage ASTC for your base of assets. You will see three options in the menu, as shown below. So this is a new wrinkle to factor in: if you can push compression enough to fit your RAM footprint, you may be able to use LZW or ZIP as a final step to achieve file size goals. There are mainly four texture compression types supported on Android: ETC1 (Ericsson texture compression). Hardware supporting ASTC has achieved sufficient enough market share that developers should seriously consider how to leverage it in their titles: to improve quality, decrease storage size, or both. It gives a straight forward way to support 2D texture ETC1 compressed. Developers porting to mobile devices may immediately look to cut down texture resolution first as a space saving method. Smaller textures also take less time to load, making games start faster. 2 / 144 Revision number Date Release Info Author 0.1 Jan 2015 Initial sharing AG 0.2 Feb 2015 Added clarication, tables, examples AG 0.3 Feb 2015 Further cleanup AG In the modern desktop computing age, there has classically been one answer to texture compression: DXT. With Texture Compression Format Targeting, you can start using ASTC for devices that support it while falling back to ETC2/ETC1 to devices that dont. ETC1 and ETC2 specifications are the part of OpenGL Core Profile since OpenGL 4.3 (35). It is also referred to as S3TC due to its origin, or BCn for certain DirectX implementations. Experiment with increased compression when time permits. One of the oldest tools in the compression market, it is no surprise it is still in heavy use today in many projects. Easy Save 2 uses Unity's Texture2D.EncodeToPNG to encode the Texture into a serialisable format, but Unity does not allow you to use it with compressed textures. Powered by Discourse, best viewed with JavaScript enabled, "Unsupported Texture Format" message on Android. You may. Take your textures, and separate them into groups of similar content based on the content categories in the next section. ATC The drawback is that it won't give you the ability to use mipmaps or cubemaps. Adaptive Scalable Texture Compression (ASTC) High image quality with low-but-good compression ("Higher IQ"); Balanced medium compression with medium image quality, allowing for some minor artifacts ("Medium IQ"); or. It gives more or less equivalent image quality for the same bitrate, but it can also achieve higher compression if you are willing to sacrifice some image quality. Thus the on-the-wire, on-disk and in RAM sizes are all key. Today, you must think carefully about your market. There you can see all those are the ones you checked before in Settings. Figure 1: Compression of normals.png, a normal map, with DXT vs ASTC(Click for larger version), minor artifacts, otherwise very good match, blotchy artifacts, some edge AA lost, some dithering, barely usable, some blotching, 'acne', on the line of usable, hint of block artifacts, barely on the usable line, bad block/banding artifacts, loss of AA along edges, Figure 2: Compression of body.png, an ambient occlusion map, with DXT vs ASTC(Click for larger version), banding/blocking in gradients; encoding as 1ch may be improper, on the line to -1, hints of block artifacts, block artifacts more visible, some detail blurring, loss of some detail, some block artifacts. Adaptive Scalable Texture Compression J. Nystad1, A. Lassen1, A. Pomianowski2, S. Ellis1 and T. Olson1 1ARM 2AMD Abstract We describe a xed-rate, lossy texture compression system that is designed to offer an unusual degree of exibility and to support a very wide range of use cases, while providing better image quality than most formats in . ETC1 compression (ETC1_RGB8) can be decoded using RGB8_ETC2, so feels like WEBGL_compressed_texture_etc would be more appropriate name for this extension. ). minor loss of dither details/blurring, minor color shifts, more blurring, loss of dither details, starting blocking/blotching, loss of fine details, deeper blurring and blotching, odd color shifts/desaturation, detail loss esp in AA regions, intensity drops, detail loss esp in AA, blurring/blotching, blurring, block artifacts, loss of detail, intensity drop, color shifts, block artifacts, significant loss of smooth aa/gradients, some minor detail shifts, but otherwise good, minor loss of fine details and subtle shading/highlights, loss of some fine highlight details, but otherwise reasonable, more block artifacts evident and finer details lost, many more artifacts in midrange alpha/color regions and edges, blurring/block artifacts on certain edges, loss of few fine details, loss of details, some blurring, odd shading/haloing at alpha edges, slight softening of details, slight expansion of alpha border, minor saturation shift, minor alpha edge shift, small block artifacts, some faint banding in gradient areas, some dithering, acne, otherwise reasonable. I recently get this error "unsupported texture format" "cooked flavors:etc2, supported:etc1" and then, after i click ok, i get "scrip/umg not found ASTC "block footprint" note, fixed credits/changelog/contents Revision 1.1 rev 7 Sep 2016 AG ASTC multi-point "part" and quint decode typo fixes Revision 1.1 rev 8 Jun 2017 AG ETC2 legibility and table typo fix Revision 1.1 rev 9 Mar 2019 AG Typo fixes and much reformatting DXT tools might run 2-10x faster. As mentioned already, ETC2 texture compression support is mandatory with OpenGL 4.3 and OpenGL ES 3.0. Finally, update your app build.gradle file to enable texture splits in asset packs: Google Play strips off the texture suffixes so your game reads its assets from the default directory, regardless of what textures are delivered to the device. For Sprites A 2D graphic objects. A list of some texture compression tools. In parallel to Khronos defining OpenGL ES 3.0, there was an effort to develop an industry-leading compression format that provided developers with finer grained control. It is a starting point from which you can decide to further increase or decrease compression levels to hit your desired balance of size and quality. Disabled: Selecting this option disables the ASTC feature on BlueStacks 5. Batch compress a small set of test assets (maybe one or two dozen files) and look for where quality starts to drop below the required bar for the product. This is especially the case if previously you have avoided using DXT on specific assets; you might now try ASTC formats vs leaving the assets uncompressed. Imagination's texture compression pack includes a GUI, a separate command line tool, a linkable library, and plugins for major DCC apps (Maya, Max, Photoshop). In each case below, "Higher" quality should be less than or equal to the file size of DXT but significantly better image quality. The system supports all known GPU texture formats, including obscure ones like FXT1/ATC. This guide aims to provide developers with the following: The overall goal is to assist developers in achieving their desired balance between image quality and texture size. Then, only do incremental high-quality recompression as assets change (maybe only once per day, using "fast" mode otherwise unless you need production quality assets in-engine). Decompression on the client is still required but it should be an order of magnitude or two faster than any transcoding process. The result will be stored in a PKM file. Start with what you are willing and able to use. The tables provide the details and evaluation of the batch runs on each texture for each of the tested compressors. Recommend using an RGB and a separate alpha texture if need alpha to get better compression. An introduction to the modern texture formats available on the newest chips (specifically focusing on ASTC). ETC is a block-based texture compression format. The first version of the compression scheme, PACKMAN, was introduced in 2004 (3). The key to ASTC is that while it uses a fixed 128 bits-per-block, each texture can have a different size block fit in those 128 bits, unlike the fixed 4x4 block of prior formats. ETC2 Compressed textures reduce the amount of memory needed to store a texture on the GPU, allowing for higher resolution textures or more of the same resolution textures. Other mobile chip vendors created other compression formats. ETC2 Supported by all OpenGL 3.x class devices and supports alpha compression. To better discuss the effects of different codecs on content, we performed a batch compression run against a small set of textures and assigned a visual image quality (IQ) rating to each. The code is open source, and has CUDA compression paths for many formats. There is a Textures tutorial in the SDK, which demonstrates how to use compressed textures in Vulkan applications. In addition to viewing texture images via CPU, Compressonator v2.3 now support viewing via GPU. These can both do transparency, but squeezing images into 2bpp mode is challenging though YMMV - certainly some well known, big developers do use 2bpp. The presented textures show the same region under a high zoom to provide a direct visual comparison of the different compression methods. Open the Settings menu by clicking on the gear icon on the side toolbar. This allows almost any type of texture to be used in compressed form, and allows for textures to occupy much less space in RAM up to 36x less space compared to uncompressed 2D textures depending on quality. New GPU Rendered Texture Views. With the flood of mobile devices came even more urgency to use texture compression. The normal texture used for this test is shown below. A quick-start guide for applying these new formats to existing assets. In striking a balance, you might push for lower bit rates and be more flexible with what artifacts you are willing to accept. The ETC2 format is based on GL_COMPRESSED_RGB8_ETC2 API. Right-click these, then choose Check Partition Integrity. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Advice as to how developers can write their own internal "design guide". Supported: ETC1,ETC2,ASTC. App is packaged for OpenGL ES 3.1 but device has not met all the requirements for ES 3.1 : Device has OpenGL Es 3.1 support: NO Floating point render target support: Yes This device only supports OpenGl ES 2 but the app was not packaged with . The best compression might mean the highest compression levels and lowest bit rates, but with too many artifacts. Latest Texture compression format allowing more quality control by specifying block size and supports alpha compression. BlueStacks App Player lets you run mobile apps fast and fullscreen on Windows. The objective of texture compression is to reduce data size, while minimizing impact on visual quality. We then considered which compression format seemed best for quality, gave a balance of quality and compression, or delivered a higher level of compression without resulting in extreme artifacts. This is not an entirely bad thing because you are still benefitted from the decreased game size. Historically, developers would either target larger desktop screens or smaller mobile screens. As with most systems, it relies on the hardware to do the decompression. The net result being ASTC handles most types of texture. Higher compression with lower image quality, often loss of fine details with some blurring/blotching ("Lower IQ"). Great now it doenst make sense to use ETC2 at all, and instead to use DXT5 Crunched instead. How do I manage to get rid of this warning ? The data includes: the image quality rating for each codec, some brief notes as to the rating (where comparisons are drawn to the original/raw image), and information on each codec in terms of bits per pixel and improved size if we were to compare to some base/assumed DXT format compression. PVRTC: Popular with iOS games, and also supported on some Android devices. Then you'll have the best performance . DXT Host Dan Galpin explains how to improve the load time, frame rates, and size of your game by supporting modern texture compression with Play Asset Delivery. Bluestacks launching NIKKE on landscape mode instead of Azur lane keep freezing after updating the bluestack to Grey screen when opening 8 ball pool - Pie 64 Bits. Texture data can be compressed to any of these texture compression formats using the Adreno Texture Tool (QCompress.exe) included in the Adreno SDK for Vulkan. Compressing a Pixmap loaded from a file and writing it to our custom ETC1 file format is pretty simple: Google Play Asset Delivery allows you to publish an Android App Bundle to Google Play containing all the resources your game needs. PROBLEM PHOTO: Imgur: The magic of the Internet. Unsupported Texture Format Cooked flavors: ASTC Supported: ETC1, ETC2, ATC Unable to run on this device! J. josepagliero Member. Supported by all OpenGL 3.x class devices and supports alpha compression. And so in short do not rely on Default with iOS. The latest Android and Google Play news for app and game developers. Location: http://community.imgtec.com/developers/powervr/tools/pvrtextool/. ASTC was released in 2012 to give developers more flexibility in trading compression size vs image quality. ETC1 is supported on practically all devices. If you get any errors, redump/rerip Black Ops and try again. Look at the potential for cross-platform sharing, versus different assets per platform. if its just going to decompress anyway on es2 devices. Recommend using an RGB and a separate alpha texture if need alpha to get better compression. Android App Bundle will be the required publishing format for all new games and apps as of August 2021, which means that Google Play Asset Delivery will be required for new games that want Google Play to host more than 150MB of assets. BlueStack size doubled, I had had the "optimize before little video bug in bluestack playing crossout mobile, Facing Network Connections when playing LDOE, Controller disconnecting and reconnecting to BlueStack 5, Press J to jump to the feed. With the release of OpenGL ES 3.0 in 2013 (and full OpenGL 4.3), the ETC2 format became a standard, with backwards compatibility and important new features. By David Chait, Tegra Developer Technology, http://malideveloper.arm.com/develop-for-mali/tools/asset-creation/mali-gpu-texture-compression-tool/, http://community.imgtec.com/developers/powervr/tools/pvrtextool/, Using ASTC Texture Compression for Game Assets. ASTC Hello, I'm reinaldo and I'm looking for a way to solve my problem. If you still get these error, go to Options -> Configure -> Interface tab, and uncheck Use Panic Handlers. since they will both be decompress at load anyway. Texture format targeting provides value even for smaller games due to the advantages of newer texture compression formats. One other key advantage of ASTC is that the method of encoding endpoints, weighting, etc. Memory was typically shared with the CPU and thus even more of a scarce resource. In addition, ASTC offers support for 1-4 channels, including full alpha RGBA, normal RGB, 2-channel RG (LA), and 1-channel R (L/A) support, and custom X+Y and XY+Z normal map support. Today, it is a standard compression scheme for Android based devices. In quick testing, we used a tiny set of example ASTC textures (the same used in the next chapter) and compressed them with standard ZIP compression. For developers who want to "get right to it", consider the general guidance below to try first when targeting the latest GPU hardware. On Unity we can see that the ASTC 8x8 takes the same 256.2 KB space as RGBA32. I feel a bit dumb, but thats corrected! The following is a brief selection of tools available on the internet to help developers deal with texture compression. Unity ASTC Android GPU Unity Android ASTC ASTC Supported by Nvidia Tegra GPUs and supports alpha compression. And is part of ES3 extension. PROBLEM PHOTO: Imgur: The magic of the Internet. Compatibility table A bit below in that same page shows what it means for your player. ETC2 is higher quality than its predecessor and also introduces support for alpha pixels and R-/RG- textures. Also important to the mobile space is power use. In addition, mobile data networks were slow, and storage in the device was small, so smaller data over the wire was important. It spoofs a Samsung Galaxy Note 9, so edit the settings accordingly for your device in game. The WEBGL_compressed_texture_etc1 extension is part of the WebGL API and exposes the ETC1 compressed texture format. ETC1 file format is a very simple format specific to libGDX (see this blog post). PVRTC To avoid the myriad vendor-specific codecs, Khronos defined vendor-neutral codecs. With Texture Compression Format Targeting, you can start using ASTC for devices that support it while falling back to ETC2/ETC1 to devices that don't. The Adaptive Scalable Texture Compression (ASTC) format offers advantages, such as improved rendering performance, faster load times, a smaller in-memory footprint, better battery life, and . Engine Tab:Graphics Engine:Graphics Renderer:GPU Settings:CPU:RAM:ABI: Create an account to follow your favorite communities and start taking part in conversations. Assuming you pick texture compression that fits into memory limits well enough, layering standard compression on top can make a difference in both on-the-wire transmission bandwidth as well as on-disk storage. You should be a couple of Partitions. Improve Your Game with Texture Compression Format Targeting. Try to find a "baseline" for each class of asset, so you can take a "quick pass" at the entire project. Third, it added sRGB data support. This device only supports OpenGl ES 2 but the app was not packaged with ES2 Support. ASTC is good, ETC2 also good. ATC In addition, it supports various block sizes with different associated compression ratios. Click on the ' Graphics ' tab. The solution is really simple, though: always bundle ETC1+2 together in texture files. PVRTC is the other to offer a smaller variant, with its 2bpp mode. WARNING: ETC texture format is not supported, decompressing texture WARNING: ETC texture format is not supported, decompressing texture Warning: Shader 'Nature/Terrain/Standard' exceeds the number of texture image units, marking as unsupported. Welcome to the official subreddit of Bluestacks. I always assumed it was just falling back to ETC1 when the device couldnt decode it. Thats why i said before, if you "only" targeting ES3.0 devices, then it makes sense to use ETC2 because u get the reduced ram usage which could help with performance (and ofcourse Alpha, and slight quality improvement). Last edited: Aug 11, 2018. That should make sense. ). The alternative formats generally offer 4bpp for RGB or single channel data, some can fit alpha in that footprint, some offer higher quality alpha or a second single channel data block in a second 4bpp section. We have more information on all of our game related developer resources at d.android.com/games and stay up to date with Google Play Asset Delivery and other game developer tools by signing up for the games quarterly newsletter. Recent Search History Delete All History. ASTC can run in faster modes, generating lower quality results in short times, when you are testing and don't yet need or want production quality. Sometimes that is accomplished with more RAM but more often it is achieved with native support for compressed texture formats. There have been later variants of this approach that store LA or RG data in two separate 4bpp blocks, for better quality. We're committed to helping you serve your entire game through Play with customized dynamic delivery and features such as texture compression format targeting. ETC2 codec provides backward compatibility with ETC1. Log In-2 . ETC1: Supported on most devices. Format Unsupported Texture Format Cooked Flavors: ETC2 Supported: ETC1 10.1 os : . BPTC provides two features: improved image quality for Normalized Integer formats and floating-point compression. Then, create additional texture directories with a suffix representing the additional formats you wish to support. There are fundamental constraints in texture compression which is unique to this problem domain, and these restrictions heavily influence the design of the formats in question. 1) Raw normal map; 2) "computed lighting" on the normal map used to evaluate compression quality; 3) compressed to ASTC 4x4 with ARM astcenc "medium" setting; 4) compressed to ASTC 6x6 with ARM astcenc "very fast" setting; 5) compressed to ETC2 with ETCPACK "slow" setting. Since the dawn of the GPU, developers have been trying to cram bigger and better textures into memory. . The first 32 bits contain information about the colors used within the 4x4 block. The Adaptive Scalable Texture Compression (ASTC) format offers advantages, such as improved rendering performance, faster load times, a smaller in-memory footprint, better battery life, and improved visual quality. The drawback is that there is no direct alpha channel support. Its primary focus is the PVRTC format, but also has ETC2 support as well. http://docs.unity3d.com/Documentation/Components/class-Texture2D.html, http://en.wikipedia.org/wiki/Ericsson_Texture_Compression, https://www.khronos.org/assets/uplopengl-es-bof/Ericsson-ETC2-SIGGRAPH_Aug12.pdf, (You must log in or sign up to reply here. ASTC is a more recent format that's more flexible; it supports many different kinds of textures, allowing for just about any texture in your game to benefit from compression. The best case is when the device supports the Android Extension Pack. Supported by Qualcomm Adreno GPUs and supports alpha compression. Hello, I'm reinaldo and I'm looking for a way to solve my problem. The top compression formats in Android are ETC1, ETC2, and ASTC. I suggest you to click ETC2, ,ATC and PVRTC to cover most devices. I was working on a personal project that could benefit from texture compression on the GPU, and wanted to support both Desktop and Mobile. - Unsupported Texture Format - Cooked flavors: ASTC - Supported: ETC1, ETC2, ATC . Graphics texture compression reduces memory usage and avoids congesting the bus, thereby trying to avoid a performance bottleneck. For textures, there are many places where smaller data saves power: reading from storage, any unpack/unzip or transcode step, writing data to memory, and reading that data during rendering. Compression. ASTC also covers both normalized integer and floating-point compression. Supported by all Android based devices but cannot compress alpha textures (they are stored uncompressed). Description Just dont use it. supported by PowerVR GPUs and supports alpha compression. It compresses using fixed 128-bit block sizes, but allows for variable block footprints from 4x4 (8 bits per texel) to 12x12 (.89 bits per texel). Need help - Texture ASTC. That said, you may find content which "tolerates" highest compression well, or decide that smaller size is more important than the resulting artifacts. Top texture compression formats with device penetration as of September 2020. Assets are sent over the wire in that form, and transcoded to the optimal GPU format for the device either at first run or on-demand. is selected per-block rather than globally, so the encoder can adapt on the fly to allocate the 128 bits to better represent the contents in each block. It offers both 4 and 2bpp options for greater reduction in size. 3. The following suggestions are based on the ARM "astcenc.exe" command line tool in "thorough" mode to ASTC-compress a small set of test assets at different bit rates. Internally, all ETC1S/UASTC format slice textures can be converted to any GPU texture format. Plus there are additional, possibly undesirable, quality issues both starting with JPEG and resulting from a speed-tuned "fast encoder". . PVRTC (PowerVR texture compression). Can you please open your Settings (gear wheel to the right) and click on the Engine Tab to tell me what your selected options are for the following? The transcoder's API supports converting alpha slices to color texture formats, which allows the user to transcode textures with alpha to two ETC1 images, etc. A second approach is to experiment with different content packaging of post-codec content. The biggest issue with ETC2 are complaints about its extremely slow compression tools. Format Description ETC1 Supported by all Android based devices but cannot compress alpha textures (they are stored uncompressed).

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