Etc2 vs astc. When we looked at the performance of astcenc ETC2 is older and compatible with more devices, it was designed for openGL 2, ASTC is more modern and designed for openGL 3. ETC2（Ericsson Texture Compression 2）： ETC2 是一种由 Ericsson 开发的纹 Improved image quality: Despite the high degree of format flexibility, ASTC manages to beat nearly all legacy texture compression formats -- such as ETC2, PVRCT, and the BC formats -- on image Many developers persevered, but a lot simply switched back to using ETC2 or to alternative ASTC compressors. The ASTC algorithm creates smaller files and results in better image quality than the older ATC, ETC, 【摘要】 本文深入解析前端领域WebGL技术中ASTC与ETC2两种主流纹理压缩格式。 从技术特性看，ETC2以固定块压缩适配广泛设备，优化透明通道处理；ASTC凭借自适应块大小设计，灵活平衡 There’s a range of compression performance vs. Will it seriously affect the texture quality? This Understand how BC, ETC, ASTC, and PVRTC texture formats affect quality, size, and performance across platforms, plus when to use uncompressed fallbacks and key import settings. For modern games, ASTC is generally the best primary ASTC、DXT（別名S3TC）、およびETC2は、すべてテクスチャ圧縮フォーマットです。 これらはグラフィックスやゲームの分野で、テクス ASTC is an industry-leading texture compression format produced in mid-2012 after the emergence of OpenGL ES 3. Its compression blocks can 4. I’m using a Galaxy S6, should I keep using ECT2 or the new ASTC option for my packages? I’ve noticed they both work on my packaging, but not sure what the difference is or if I On the plus side, ASTC tools are 4-20x faster than its closest competitor, ETC2, for production output. If your target hardware supports ASTC algorithm, use the ASTC algorithm for the best results. ASTC can run in faster modes, generating lower quality In this article, we will compare ASTC and ETC2 in various aspects like performance, visual quality, compatibility, and use cases, to help you make an informed decision on which format There’s a range of compression performance vs. resulting quality options available, with BC7 achieving very similar quality to ASTC 4x4, while being faster to 市场上存在的 IOS 压缩pvrtc android以前的etc1 etc2 都是为了进行对图片的压缩以提高性能 但是目前的主流都开始转向ASTC压缩格式 一方面是由于IOS与 Android 同时支撑ASTC格式 (astc是12年出现 ASTC’s roots are on Mali GPUs, but it was always a Khronos standard, and is widely supported now on mobile Vulkan implementation (and Intel iGPU :3), at least the LDR profile. After that, I decided to run some tests and if all is good then change the compression of textures in my According to the Android developer guide, over 80% of (Google Play enabled) Android devices support ASTC format and over 95% support When I try to export my project to Android, the engine requires to enable ETC2/ATSC compression. both work in 80-95% of A subsequent version, ETC2, adds support for 1-bit and 8-bit alpha channels. ASTC对分辨率没有需求；ETC2要求分辨率为4的倍数，而非2的次幂；特别地，不论是ASTC还是ETC2，如果开启了Mipmap，则必须是2的次幂，否则同样会压缩失败。 感谢Faust@UWA Three texture compression algorithms are most common on Android: ETC1, ETC2 and ASTC. Last year, I began a blog series where I explored the weird and wonderful world of texture compression formats. Unfortunately, I ASTC对分辨率没有需求；ETC2要求分辨率为4的倍数，而非2的次幂；特别地，不论是ASTC还是ETC2，如果开启了Mipmap，则必须是2的次幂，否则同样会压 ETC2、ASTC 和 PVRTC 三种不同的纹理压缩技术，主要用在移动设备和游戏平台上减少纹理的内存占用和提高性能。 1. What you say, profiles in This is a long overdue blog post. 0. resulting quality options available, with BC7 achieving very similar quality to ASTC 4x4, while Recently I found some information about the ASTC texture format on the internet. ETC2 is supported by all Metal-compatible hardware, but PVRTC often 4. ASTC对分辨率没有需求；ETC2要求分辨率为4的倍数，而非2的次幂；特别地，不论是ASTC还是ETC2，如果开启了Mipmap，则必须是2的次幂，否则同样会压缩失败。 感谢Faust@UWA For HDR textures, ASTC HDR is the only compressed format available on Android devices. ASTC HDR requires Vulkan or GL_KHR_texture_compression_astc_hdr support. ASTC is the most RGB8 vs ETC2 4bits vs ASTC 6x6 从上图可以看出，一张512x512尺寸的贴图（不带Alpha通道，开启Mipmap）的容量为1MB，压缩为ETC2 4 bits According to the Android developer guide, over 80% of (Google Play enabled) Android devices support ASTC format and over 95% support ETC1 is considerably lower quality than ETC2, but because ETC2 is backwards compatible (ETC1 textures can be fed to ETC2 decoders) .
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