Experimental: Vulkan tool build script.

sandbox/vulkan/README.md

@@ -0,0 +1,14 @@
+# Setup Vulkan Loaders and Vulkan Validation layers
+
+## Linux
+
+```
+$ bash build-vulkan-tools-linux.sh
+```
+
+Files will be installed to `dist` directory.
+
+## Windows, macOS, Android
+
+T.B.W.
+

sandbox/vulkan/build-vulkan-tools-linux.sh

@@ -0,0 +1,65 @@
+#!/bin/bash
+
+# Asssume Cmake 3.20+
+
+
+glslang_dist_dir=`pwd`/dist
+vk_header_dist_dir=`pwd`/dist
+vk_loader_dist_dir=`pwd`/dist
+
+function build_vk_headers() {
+	git clone https://github.com/KhronosGroup/Vulkan-Headers
+
+	rm -rf vk_header_build
+	mkdir vk_header_build
+
+	cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX="${vk_header_dist_dir}" -B vk_header_build Vulkan-Headers
+	cmake --build vk_header_build --config Release
+	cmake --build vk_header_build --config Release --target install 
+}
+
+
+function build_validation_layer() {
+	git clone https://github.com/KhronosGroup/Vulkan-ValidationLayers.git
+
+	cd Vulkan-ValidationLayers
+
+	rm -rf build
+	mkdir build
+	cd build
+
+	python3 ../scripts/update_deps.py --dir ../external --arch x64 --config debug
+
+	cmake -G Ninja -C ../external/helper.cmake -DCMAKE_BUILD_TYPE=Debug ..
+
+	cmake --build . --config Debug
+
+}
+
+function build_glslang() {
+	git clone https://github.com/KhronosGroup/glslang.git
+
+	rm -rf glslang_build
+	mkdir glslang_build
+	cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX="${glslang_dist_dir}" -B glslang_build glslang
+	cmake --build glslang_build --config Release
+	cmake --build glslang_build --config Release --target install 
+}
+
+function build_vk_loader() {
+
+	rm -rf vk_loader_build
+	mkdir vk_loader_build
+
+	git clone https://github.com/KhronosGroup/Vulkan-Loader.git
+
+	cmake -S Vulkan-Loader -B vk_loader_build -DCMAKE_INSTALL_PREFIX="${vk_loader_dist_dir}" -DUPDATE_DEPS=On
+	cmake --build vk_loader_build
+	cmake --build vk_loader_build --config Debug
+	cmake --build vk_loader_build --config Debug --target install 
+}
+
+build_vk_headers
+build_validation_layer
+build_glslang
+build_vk_loader

src/tydra/render-data.hh

@@ -30,6 +30,30 @@ using vec3 = value::float3;
 using vec4 = value::float4;
 using mat2 = value::matrix2f;  // float precision
 
+// Simple string <-> id map
+struct StringAndIdMap {
+  void add(uint64_t key, const std::string &val) {
+    _i_to_s[key] = val;
+    _s_to_i[val] = key;
+  }
+
+  void add(const std::string &key, uint64_t val) {
+    _s_to_i[key] = val;
+    _i_to_s[val] = key;
+  }
+
+  size_t count(uint64_t i) const { return _i_to_s.count(i); }
+
+  size_t count(const std::string &s) const { return _s_to_i.count(s); }
+
+  std::string at(uint64_t i) const { return _i_to_s.at(i); }
+
+  uint64_t at(std::string s) const { return _s_to_i.at(s); }
+
+  std::map<uint64_t, std::string> _i_to_s;  // index -> string
+  std::map<std::string, uint64_t> _s_to_i;  // string -> index
+};
+
 enum class VertexVariability
 {
   //Constant,
@@ -256,6 +280,9 @@ std::vector<UsdPrimvarReader_float2> ExtractPrimvarReadersFromMaterialNode(const
 bool ConvertMaterial(
   const Stage &stage,
   const tinyusdz::Material &material,
+  StringAndIdMap materialMap, // [inout]
+  StringAndIdMap textureMap, // [inout]
+  StringAndIdMap imageMap, // [inout]
   std::vector<RenderMaterial> &materials, // [input]
   std::vector<UVTexture> &textures, // [inout]
   std::vector<LDRImage> &images); // [inout]