From 8144e44adbaa377ae5e2083b61ff39bd2c6b6cfd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Klime=C5=A1?= <kurimi@sitischu.com>
Date: Sat, 20 Jul 2019 11:32:41 +0200
Subject: [PATCH] first skeleton working (?)

---
 .gitignore         |  1 +
 CMakeLists.txt     | 85 +++++++++++++++++-----------------------------
 shader/shader.frag | 25 ++++++++++++++
 shader/shader.vert | 26 ++++++++++++++
 4 files changed, 83 insertions(+), 54 deletions(-)
 create mode 100644 .gitignore
 create mode 100644 shader/shader.frag
 create mode 100644 shader/shader.vert

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..c795b05
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+build
\ No newline at end of file
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a4350cb..62579b6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,54 +1,31 @@
-cmake_minimum_required(VERSION 3.2 FATAL_ERROR)
-project(openglapp VERSION 0.1.0)
-
-include(CTest)
-enable_testing()
-
-# Variables
-if(CMAKE_SIZEOF_VOID_P EQUAL 8)
-    set(PLATFORM_ARCH "64")
-elseif(CMAKE_SIZEOF_VOID_P EQUAL 4)
-    set(PLATFORM_ARCH "32")
-endif()
-
-# Global
-set(SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/src")
-set(INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/include")
-set(LIB_DIR "${CMAKE_CURRENT_SOURCE_DIR}/lib")
-
-# Includes
-include_directories(${INCLUDE_DIR})
-
-# Source
-file(GLOB SOURCES "${SRC_DIR}/*.cpp")
-
-add_executable(${PROJECT_NAME} ${SOURCES})
-
-# GLAD
-set(GLAD_DIR "${LIB_DIR}/glad")
-add_library("glad" "${GLAD_DIR}/src/glad.c")
-target_include_directories("glad" PRIVATE "${GLAD_DIR}/include")
-target_include_directories(${PROJECT_NAME} PRIVATE "${GLAD_DIR}/include")
-target_link_libraries(${PROJECT_NAME} "glad" "${CMAKE_DL_LIBS}")
-
-# GLFW
-set(GLFW_BUILD_DOCS OFF CACHE BOOL "" FORCE)
-set(GLFW_BUILD_TESTS OFF CACHE BOOL "" FORCE)
-set(GLFW_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
-set(GLFW_DIR "${LIB_DIR}/glfw-3.2.1")
-add_subdirectory("${GLFW_DIR}")
-target_include_directories(${PROJECT_NAME} PRIVATE "${GLFW_DIR}/include")
-
-# GLM
-set(GLM_TEST_ENABLE OFF CACHE BOOL "" FORCE)
-set(GLM_DIR "${LIB_DIR}/glm")
-add_subdirectory("${GLM_DIR}")
-target_include_directories(${PROJECT_NAME} PRIVATE "${GLM_DIR}/glm")
-
-set_property(TARGET ${PROJECT_NAME} PROPERTY CXX_STANDARD 11)
-target_link_libraries(${PROJECT_NAME} glfw)
-target_link_libraries(${PROJECT_NAME} glm)
-
-set(CPACK_PROJECT_NAME ${PROJECT_NAME})
-set(CPACK_PROJECT_VERSION ${PROJECT_VERSION})
-include(CPack)
+# Projects Settings
+cmake_minimum_required (VERSION 3.1)
+project (opengl-skeleton)
+
+# The main executable
+add_executable(main
+  src/Application.cpp
+  src/Application.cpp
+  src/MyApplication.cpp
+  src/MyApplication.cpp
+  src/glError.hpp
+  src/glError.cpp
+  src/main.cpp
+  src/Shader.hpp
+  src/Shader.cpp
+)
+set_property(TARGET main PROPERTY CXX_STANDARD 11)
+target_compile_options(main PRIVATE -Wall)
+
+# glfw
+add_subdirectory(lib/glfw EXCLUDE_FROM_ALL)
+target_link_libraries(main PRIVATE glfw)
+
+# glew
+add_definitions(-DGLEW_STATIC)
+add_subdirectory(lib/glew EXCLUDE_FROM_ALL)
+target_link_libraries(main PRIVATE libglew_static)
+
+# glm
+add_subdirectory(lib/glm EXCLUDE_FROM_ALL)
+target_link_libraries(main PRIVATE glm)
diff --git a/shader/shader.frag b/shader/shader.frag
new file mode 100644
index 0000000..7f74c19
--- /dev/null
+++ b/shader/shader.frag
@@ -0,0 +1,25 @@
+#version 150
+
+in vec4 fPosition;
+in vec4 fColor;
+in vec4 fLightPosition;
+in vec3 fNormal;
+
+// output
+out vec4 color;
+
+void main(void)
+{       
+    vec3 o =-normalize(fPosition.xyz);
+    vec3 n = normalize(fNormal);
+    vec3 r = reflect(o,n);
+    vec3 l = normalize(fLightPosition.xyz-fPosition.xyz);
+
+    float ambient = 0.1;
+    float diffus = 0.7*max(0.0,dot(n,l));
+    float specular = 0.6*pow(max(0.0,-dot(r,l)),4.0);
+
+    color = fColor * ( ambient + diffus + specular );
+
+	/*color = vec3(1,0,0);*/
+}
diff --git a/shader/shader.vert b/shader/shader.vert
new file mode 100644
index 0000000..fa13657
--- /dev/null
+++ b/shader/shader.vert
@@ -0,0 +1,26 @@
+#version 150
+
+in vec3 position;
+in vec3 normal;
+in vec4 color;
+
+uniform mat4 projection;
+uniform mat4 view;
+
+out vec4 fPosition;
+out vec4 fColor;
+out vec4 fLightPosition;
+out vec3 fNormal;
+
+void main(void)
+{
+    fPosition = view * vec4(position,1.0);
+    fLightPosition = view * vec4(0.0,0.0,1.0,1.0);
+
+    fColor = color;
+    fNormal = vec3(view * vec4(normal,0.0));
+
+    gl_Position = projection * fPosition;
+    /*gl_Position.x *= 1000.0f;*/
+    /*gl_Position.y = 0.0;*/
+}