From b0d5f9014fab19f7c42ab7d4cc1fe29003c2e723 Mon Sep 17 00:00:00 2001
From: Ano-sys <timo.niemann02@gmail.com>
Date: Thu, 3 Apr 2025 21:38:03 +0200
Subject: [PATCH] Added shader compilation to cmake

---
 CMakeLists.txt                        |  40 +++++++++++++++++++++++++-
 shaders/compile.sh                    |   4 +--
 shaders/{frag.spv => shader.frag.spv} | Bin
 shaders/shader.vert                   |   2 +-
 shaders/shader.vert.spv               | Bin 0 -> 1480 bytes
 shaders/vert.spv                      | Bin 1504 -> 0 bytes
 6 files changed, 42 insertions(+), 4 deletions(-)
 rename shaders/{frag.spv => shader.frag.spv} (100%)
 create mode 100644 shaders/shader.vert.spv
 delete mode 100644 shaders/vert.spv

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 54d24b9..157a489 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,9 +7,47 @@ set(GLFW_USE_WAYLAND ON)
 find_package(Vulkan REQUIRED)
 find_package(glfw3 3.3 REQUIRED)
 
+# Suche nach dem glslc Compiler
+find_program(GLSLC glslc)
+if(NOT GLSLC)
+    message(FATAL_ERROR "glslc compiler not found. Please install the Vulkan SDK.")
+endif()
+
+# Alle Shader-Dateien im Verzeichnis ./shaders sammeln
+file(GLOB SHADER_FILES
+        "${CMAKE_CURRENT_SOURCE_DIR}/shaders/*.vert"
+        "${CMAKE_CURRENT_SOURCE_DIR}/shaders/*.frag"
+)
+
+set(SPIRV_SHADERS "")
+foreach(SHADER ${SHADER_FILES})
+    # Dateiname extrahieren
+    get_filename_component(SHADER_NAME ${SHADER} NAME)
+    # Zielpfad für die kompilierten Shader im Build-Verzeichnis
+    set(SPIRV "${CMAKE_CURRENT_BINARY_DIR}/shaders/${SHADER_NAME}.spv")
+
+    # Custom Command zum Kompilieren des Shaders
+    add_custom_command(
+            OUTPUT ${SPIRV}
+            COMMAND ${GLSLC} ${SHADER} -o ${SPIRV}
+            DEPENDS ${SHADER}
+            COMMENT "Compiling ${SHADER_NAME}"
+    )
+
+    list(APPEND SPIRV_SHADERS ${SPIRV})
+endforeach()
+
+# Custom Target, das alle Shader kompiliert
+add_custom_target(compile_shaders ALL DEPENDS ${SPIRV_SHADERS})
+
+# Das eigentliche Executable
 add_executable(vulkan_test
         main.cpp
         vulkan/vulkan_app.cpp
-        vulkan/vulkan_app.hpp)
+        vulkan/vulkan_app.hpp
+)
 
 target_link_libraries(vulkan_test PRIVATE Vulkan::Vulkan glfw)
+
+# Sicherstellen, dass die Shader vor dem Bauen des Executables kompiliert werden
+add_dependencies(vulkan_test compile_shaders)
diff --git a/shaders/compile.sh b/shaders/compile.sh
index f730c37..f42be71 100755
--- a/shaders/compile.sh
+++ b/shaders/compile.sh
@@ -1,2 +1,2 @@
-glslc shader.vert -o vert.spv
-glslc shader.frag -o frag.spv
+glslc shader.vert -o shader.vert.spv
+glslc shader.frag -o shader.frag.spv
diff --git a/shaders/frag.spv b/shaders/shader.frag.spv
similarity index 100%
rename from shaders/frag.spv
rename to shaders/shader.frag.spv
diff --git a/shaders/shader.vert b/shaders/shader.vert
index 7489c81..0258077 100644
--- a/shaders/shader.vert
+++ b/shaders/shader.vert
@@ -9,7 +9,7 @@ vec2 positions[3] = vec2[](
 );
 
 vec3 colors[3] = vec3[](
-    vec3(1.0, 0.0, 0.0),
+    vec3(0.0, 1.0, 1.0),
     vec3(0.0, 1.0, 0.0),
     vec3(0.0, 0.0, 1.0)
 );
diff --git a/shaders/shader.vert.spv b/shaders/shader.vert.spv
new file mode 100644
index 0000000000000000000000000000000000000000..c0df05b1360abeccb85297500c03ab1ebaa10464
GIT binary patch
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literal 0
HcmV?d00001

diff --git a/shaders/vert.spv b/shaders/vert.spv
deleted file mode 100644
index cf7123fbe1f034fcf872b733a735c8a4efd9c7f3..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

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