From: Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
Date: Mon, 27 Dec 2021 04:00:41 +0000 (+0100)
Subject: update readme
X-Git-Tag: v0.3.0-beta~64
X-Git-Url: https://git.osiis.dedyn.io/?a=commitdiff_plain;h=44aa56cd057c09c6878de4ebd342024c60e8ae61;p=jp%2Fvkvg.git

update readme
---

diff --git a/README.md b/README.md
index 533cecf..ec6e132 100644
--- a/README.md
+++ b/README.md
@@ -62,13 +62,13 @@ For API documentation and usage, please refer to the [Cairo](https://www.cairogr
 
 ## Requirements:
 
-- [CMake](https://cmake.org/): version > 12.
+- [CMake](https://cmake.org/): version >= 3.21
 - [Vulkan](https://www.khronos.org/vulkan/)
-- [FontConfig](https://www.freedesktop.org/wiki/Software/fontconfig/)
-- [Freetype](https://www.freetype.org/)
-- [Harfbuzz](https://www.freedesktop.org/wiki/Software/HarfBuzz/)
-- GLSLC: spirv compiler, included in [LunarG SDK](https://www.lunarg.com/vulkan-sdk/) (building only)
-- [xxd](https://linux.die.net/man/1/xxd): generate headers with precompiled shaders (building only)
+- [FontConfig](https://www.freedesktop.org/wiki/Software/fontconfig/): optional, without fontconfig, use `vkvg_load_font_from_path`.
+- [Freetype](https://www.freetype.org/): optional, stb_truetype as alternative.
+- [Harfbuzz](https://www.freedesktop.org/wiki/Software/HarfBuzz/): optional, without complex text shaping may be wrong.
+- GLSLC: spirv compiler, included in [LunarG SDK](https://www.lunarg.com/vulkan-sdk/): compile shader to spir-V (building only, optional)
+- [xxd](https://linux.die.net/man/1/xxd): generate headers with precompiled shaders (building only, optional)
 - [GLFW](http://www.glfw.org/): optional, if present tests are built.
 
 if `glslc` or `xxd` are not present, a precompiled version of the shaders is stored in the git tree.