meta: add GLM as a submodule

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "imgui"]
 	path = imgui
 	url = https://github.com/ocornut/imgui
+[submodule "glm"]
+	path = glm
+	url = https://github.com/g-truc/glm

CMakeLists.txt

@@ -65,9 +65,11 @@ endif()
 
 #---
 
-# This provides Dear ImGui but also GL3W as an OpenGL loader
 if(NOT FACETS_PLATFORM STREQUAL gint)
+  # This provides Dear ImGui but also GL3W as an OpenGL loader
   add_subdirectory(imgui-builds)
+  # This provide GLM
+  add_subdirectory(glm-builds)
 endif()
 
 add_subdirectory(azur)

azur/glsl/vs_tex2d.glsl

@@ -6,7 +6,7 @@ layout(location=1) in vec2 a_texture_pos;
 /* Location in image space */
 out vec2 v_position;
 
-uniform vec3 u_windowSize;
+uniform vec2 u_windowSize;
 
 void main() {
 	v_position = a_texture_pos;

glm

@@ -0,0 +1 @@
+Subproject commit 84f2045a79a4aa2454801a98e2de0401bd9c8aee

glm-builds/CMakeLists.txt

@@ -0,0 +1,5 @@
+# Define the header-only library
+add_library(glm INTERFACE)
+
+# Set the include directory
+target_include_directories(glm INTERFACE ../glm)