added render target and bezier classes, added stroke settings panel

engine/pch.h

@@ -7,9 +7,11 @@
     #include <OpenGL/gl3.h>
     #include <sys/stat.h>
     #define LOG printf
+    #define SHADER_VERSION "#version 300 es\n"
+
 #elif __ANDROID__
     #include <EGL/egl.h>
-	#include <GLES3/gl3.h>
+    #include <GLES3/gl3.h>
     #include <sys/stat.h>
 
     #include <android/sensor.h>
@@ -17,6 +19,7 @@
     #include <android_native_app_glue.h>
 
     #define LOG(...) ((void)__android_log_print(ANDROID_LOG_INFO, "native-engine", __VA_ARGS__))
+#define SHADER_VERSION "#version 300 es\n"
 
 #elif _WIN32
     #define _USE_MATH_DEFINES
@@ -27,6 +30,7 @@
     #include <gl\GL.h>
     
     #define LOG(M,...) printf(M"\n", ##__VA_ARGS__)
+#define SHADER_VERSION "#version 150\n"
 #endif
 
 #ifdef __cplusplus
@@ -37,6 +41,7 @@
 #include <memory>
 #include <string>
 #include <vector>
+#include <random>
 #include <iostream>
 #include <algorithm>
 #include <functional>