Merge pull request #458 from raysan5/develop

Integrate develop branch into master

31 files changed, 806 insertions, 97 deletions

diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index 354a1373..1f05d529 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -7,9 +7,20 @@ include("../utils.cmake")
 # TODO `build` directory should maybe be something else...
 # TODO place somewhere else?
 include_directories("../build/release")
+include_directories("../src/external")
+include_directories("../src/external/glfw/include")
 
 # Get the sources together
-set(example_dirs audio core models others physac shaders text texutures)
+set(example_dirs audio core models others shaders shapes text textures)
+set(CMAKE_REQUIRED_DEFINITIONS -D_POSIX_C_SOURCE=199309L)
+  include(CheckSymbolExists)
+  check_symbol_exists(CLOCK_MONOTONIC time.h HAVE_CLOCK_MONOTONIC)
+  check_symbol_exists(QueryPerformanceCounter windows.h HAVE_QPC)
+set(CMAKE_REQUIRED_DEFINITIONS)
+if(HAVE_QPC OR HAVE_CLOCK_MONOTONIC)
+  set(example_dirs ${example_dirs} physac)
+endif()
+
 set(example_sources)
 set(example_resources)
 foreach(example_dir ${example_dirs})
@@ -22,6 +33,14 @@ foreach(example_dir ${example_dirs})
   list(APPEND example_resources ${resources})
 endforeach()
 
+include(CheckIncludeFiles)
+check_include_files(OVR_CAPI_GL.h HAVE_OCULUS_CAPI)
+if(NOT HAVE_OCULUS_CAPI)
+  list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/others/oculus_rift.c)
+endif()
+list(REMOVE_ITEM example_sources ${CMAKE_CURRENT_SOURCE_DIR}/others/standard_lighting.c)
+
+
 # Do each example
 foreach(example_source ${example_sources})
   # Create the basename for the example
diff --git a/examples/Makefile b/examples/Makefile
index edcff807..7ca2dc60 100644
--- a/examples/Makefile
+++ b/examples/Makefile
@@ -2,7 +2,7 @@
 #
 #   raylib makefile for Desktop platforms, Raspberry Pi, Android and HTML5
 #
-#   Copyright (c) 2013-2017 Ramon Santamaria (@raysan5)
+#   Copyright (c) 2013-2018 Ramon Santamaria (@raysan5)
 #
 #   This software is provided "as-is", without any express or implied warranty. In no event
 #   will the authors be held liable for any damages arising from the use of this software.
@@ -29,76 +29,87 @@ PLATFORM ?= PLATFORM_DESKTOP
 RAYLIB_PATH ?= ..
 PROJECT_NAME ?= raylib_example
 
+# Default path for raylib on Raspberry Pi, if installed in different path, update it!
 ifeq ($(PLATFORM),PLATFORM_RPI)
     RAYLIB_PATH ?= /home/pi/raylib
 endif
 
-# Library type used for raylib and OpenAL Soft: STATIC (.a) or SHARED (.so/.dll)
-# NOTE: Libraries should be provided in the selected form
+# Library type used for raylib: STATIC (.a) or SHARED (.so/.dll)
 RAYLIB_LIBTYPE ?= STATIC
-OPENAL_LIBTYPE ?= STATIC
 
-# On PLATFORM_WEB force OpenAL Soft shared library
-ifeq ($(PLATFORM),PLATFORM_WEB)
-    OPENAL_LIBTYPE = SHARED
-endif
+# Use external GLFW library instead of rglfw module
+USE_EXTERNAL_GLFW ?= FALSE
+
+# Use Wayland display server protocol on Linux desktop
+# by default it uses X11 windowing system
+USE_WAYLAND_DISPLAY ?= FALSE
+
+# NOTE: On PLATFORM_WEB OpenAL Soft backend is used by default (check raylib/src/Makefile)
+
 
 # Determine PLATFORM_OS in case PLATFORM_DESKTOP selected
 ifeq ($(PLATFORM),PLATFORM_DESKTOP)
-    # No uname.exe on MinGW!, but OS=Windows_NT on Windows! ifeq ($(UNAME),Msys) -> Windows
+    # No uname.exe on MinGW!, but OS=Windows_NT on Windows!
+    # ifeq ($(UNAME),Msys) -> Windows
     ifeq ($(OS),Windows_NT)
         PLATFORM_OS=WINDOWS
-        LIBPATH=win32
     else
         UNAMEOS=$(shell uname)
         ifeq ($(UNAMEOS),Linux)
             PLATFORM_OS=LINUX
-            LIBPATH=linux
-        else
+        endif
+        ifeq ($(UNAMEOS),FreeBSD)
+            PLATFORM_OS=FREEBSD
+        endif
         ifeq ($(UNAMEOS),Darwin)
             PLATFORM_OS=OSX
-            LIBPATH=osx
-        endif
         endif
     endif
 endif
-
 ifeq ($(PLATFORM),PLATFORM_RPI)
-    # RPI cross-compiler
-    RPI_CROSS_COMPILE ?= NO
+    UNAMEOS=$(shell uname)
+    ifeq ($(UNAMEOS),Linux)
+        PLATFORM_OS=LINUX
+    endif
 endif
 
 ifeq ($(PLATFORM),PLATFORM_WEB)
     # Emscripten required variables
     EMSDK_PATH = C:/emsdk
-    EMSCRIPTEN_VERSION = 1.37.21
-    CLANG_VERSION=e1.37.21_64bit
+    EMSCRIPTEN_VERSION = 1.37.28
+    CLANG_VERSION=e1.37.28_64bit
     PYTHON_VERSION=2.7.5.3_64bit
     NODE_VERSION=4.1.1_64bit
     export PATH=$(EMSDK_PATH);$(EMSDK_PATH)\clang\$(CLANG_VERSION);$(EMSDK_PATH)\node\$(NODE_VERSION)\bin;$(EMSDK_PATH)\python\$(PYTHON_VERSION);$(EMSDK_PATH)\emscripten\$(EMSCRIPTEN_VERSION);C:\raylib\MinGW\bin:$$(PATH)
     EMSCRIPTEN=$(EMSDK_PATH)\emscripten\$(EMSCRIPTEN_VERSION)
 endif
 
+RAYLIB_RELEASE_PATH ?= $(RAYLIB_PATH)/release/libs
+
 # Define raylib release directory for compiled library
 ifeq ($(PLATFORM),PLATFORM_DESKTOP)
     ifeq ($(PLATFORM_OS),WINDOWS)
-        RAYLIB_RELEASE = $(RAYLIB_PATH)/release/libs/win32/mingw32
+        RAYLIB_RELEASE_PATH = $(RAYLIB_PATH)/release/libs/win32/mingw32
     endif
     ifeq ($(PLATFORM_OS),LINUX)
-        RAYLIB_RELEASE = $(RAYLIB_PATH)/release/libs/linux
+        RAYLIB_RELEASE_PATH = $(RAYLIB_PATH)/release/libs/linux
     endif
     ifeq ($(PLATFORM_OS),OSX)
-        RAYLIB_RELEASE = $(RAYLIB_PATH)/release/libs/osx
+        RAYLIB_RELEASE_PATH = $(RAYLIB_PATH)/release/libs/osx
+    endif
+    ifeq ($(PLATFORM_OS),FREEBSD)
+        RAYLIB_RELEASE_PATH = $(RAYLIB_PATH)/release/libs/freebsd
     endif
-endif
-ifeq ($(PLATFORM),PLATFORM_WEB)
-    RAYLIB_RELEASE = $(RAYLIB_PATH)/release/libs/html5
 endif
 ifeq ($(PLATFORM),PLATFORM_RPI)
-    RAYLIB_RELEASE = $(RAYLIB_PATH)/release/libs/rpi
+    RAYLIB_RELEASE_PATH = $(RAYLIB_PATH)/release/libs/rpi
+endif
+ifeq ($(PLATFORM),PLATFORM_WEB)
+    RAYLIB_RELEASE_PATH = $(RAYLIB_PATH)/release/libs/html5
 endif
 
 # Define default C compiler: gcc
+# NOTE: define g++ compiler if using C++
 CC = gcc
 
 ifeq ($(PLATFORM),PLATFORM_DESKTOP)
@@ -106,11 +117,16 @@ ifeq ($(PLATFORM),PLATFORM_DESKTOP)
         # OSX default compiler
         CC = clang
     endif
+    ifeq ($(PLATFORM_OS),FREEBSD)
+        # FreeBSD default compiler
+        CC = clang
+    endif
 endif
 ifeq ($(PLATFORM),PLATFORM_RPI)
-    ifeq ($(RPI_CROSS_COMPILE),YES)
-        # RPI cross-compiler
-        CC = armv6j-hardfloat-linux-gnueabi-gcc
+    ifeq ($(USE_RPI_CROSS_COMPILER),TRUE)
+        # Define RPI cross-compiler
+        #CC = armv6j-hardfloat-linux-gnueabi-gcc
+        CC = $(RPI_TOOLCHAIN)/bin/arm-linux-gnueabihf-gcc
     endif
 endif
 ifeq ($(PLATFORM),PLATFORM_WEB)
@@ -129,7 +145,7 @@ endif
 
 # Define compiler flags:
 #  -O1                  defines optimization level
-#  -Og                  enable debugging
+#  -g                   enable debugging
 #  -s                   strip unnecessary data from build
 #  -Wall                turns on most, but not all, compiler warnings
 #  -std=c99             defines C language mode (standard C from 1999 revision)
@@ -160,7 +176,13 @@ ifeq ($(PLATFORM),PLATFORM_WEB)
     # -s ALLOW_MEMORY_GROWTH=1   # to allow memory resizing
     # -s TOTAL_MEMORY=16777216   # to specify heap memory size (default = 16MB)
     # -s USE_PTHREADS=1          # multithreading support
-    CFLAGS += -s USE_GLFW=3 -s ASSERTIONS=1 --profiling -s TOTAL_MEMORY=16777216 --preload-file resources
+    # -s WASM=1                  # support Web Assembly (https://github.com/kripken/emscripten/wiki/WebAssembly)
+    # --preload-file resources   # specify a resources folder for data compilation
+    CFLAGS += -s USE_GLFW=3 -s ASSERTIONS=1 -s WASM=1 --profiling --preload-file resources
+    
+    # Define a custom shell .html and output extension
+    CFLAGS += --shell-file $(RAYLIB_PATH)\templates\web_shell\shell.html
+    EXT = .html
 endif
 
 # Define include paths for required headers
@@ -176,7 +198,14 @@ ifeq ($(PLATFORM),PLATFORM_RPI)
 endif
 
 # Define library paths containing required libs
-LDFLAGS = -L. -L$(RAYLIB_RELEASE) -L$(RAYLIB_PATH)/src 
+LDFLAGS = -L. -L$(RAYLIB_RELEASE_PATH) -L$(RAYLIB_PATH)/src 
+
+ifeq ($(PLATFORM),PLATFORM_DESKTOP)
+    ifeq ($(PLATFORM_OS),FREEBSD)
+        INCLUDE_PATHS += -I/usr/local/include
+        LDFLAGS += -L. -Lsrc -L/usr/local/lib
+    endif
+endif
 
 ifeq ($(PLATFORM),PLATFORM_RPI)
     LDFLAGS += -L/opt/vc/lib
@@ -186,50 +215,53 @@ endif
 # if you want to link libraries (libname.so or libname.a), use the -lname
 ifeq ($(PLATFORM),PLATFORM_DESKTOP)
     ifeq ($(PLATFORM_OS),WINDOWS)
-        # Libraries for Windows desktop compiling
-        # NOTE: GLFW3 and OpenAL Soft libraries should be installed
-        LDLIBS = -lraylib -lglfw3 -lopengl32 -lgdi32
-
-        # Define required flags and libs for OpenAL Soft STATIC/SHARED usage
-        # NOTE: ALLIBS flag only required for raylib Win32 SHARED library building
-        ifeq ($(OPENAL_LIBTYPE),STATIC)
-            LDLIBS += -lopenal32 -lwinmm
-            CFLAGS += -DAL_LIBTYPE_STATIC -Wl,-allow-multiple-definition
-        else
-            LDLIBS += -lopenal32dll
-        endif
+        # Libraries for Windows desktop compilation
+        LDLIBS = -lraylib -lopengl32 -lgdi32
         
         # Required for physac examples
         LDLIBS += -static -lpthread
     endif
     ifeq ($(PLATFORM_OS),LINUX)
         # Libraries for Debian GNU/Linux desktop compiling
-        # NOTE: Required packages: libglfw3-dev libopenal-dev libegl1-mesa-dev
-        LDLIBS = -lraylib -lglfw3 -lGL -lopenal -lm -lpthread -ldl
+        # NOTE: Required packages: libegl1-mesa-dev
+        LDLIBS = -lraylib -lGL -lm -lpthread -ldl -lrt
         
-        # On XWindow requires also below libraries
-        LDLIBS += -lX11 -lXrandr -lXinerama -lXi -lXxf86vm -lXcursor
+        # On X11 requires also below libraries
+        LDLIBS += -lX11
+        # NOTE: It seems additional libraries are not required any more, latest GLFW just dlopen them
+        #LDLIBS += -lXrandr -lXinerama -lXi -lXxf86vm -lXcursor
+        
+        # On Wayland windowing system, additional libraries requires
+        ifeq ($(USE_WAYLAND_DISPLAY),TRUE)
+            LDLIBS += -lwayland-client -lwayland-cursor -lwayland-egl -lxkbcommon
+        endif
     endif
     ifeq ($(PLATFORM_OS),OSX)
         # Libraries for OSX 10.9 desktop compiling
-        # NOTE: Required packages: libglfw3-dev libopenal-dev libegl1-mesa-dev
-        LDLIBS = -lraylib -lglfw -framework OpenGL -framework OpenAL -framework Cocoa
+        # NOTE: Required packages: libopenal-dev libegl1-mesa-dev
+        LDLIBS = -lraylib -framework OpenGL -framework OpenAL -framework Cocoa
+    endif
+    ifeq ($(PLATFORM_OS),FREEBSD)
+        # Libraries for FreeBSD desktop compiling
+        # NOTE: Required packages: mesa-libs
+        LDLIBS = -lraylib -lGL -lpthread -lm
+
+        # On XWindow requires also below libraries
+        LDLIBS += -lX11 -lXrandr -lXinerama -lXi -lXxf86vm -lXcursor
+    endif
+    ifeq ($(USE_EXTERNAL_GLFW),TRUE)
+        # NOTE: It could require additional packages installed: libglfw3-dev
+        LDLIBS += -lglfw
     endif
 endif
 ifeq ($(PLATFORM),PLATFORM_RPI)
     # Libraries for Raspberry Pi compiling
-    # NOTE: Required packages: libopenal1
-    LDLIBS = -lraylib -lGLESv2 -lEGL -lpthread -lrt -lm -lbcm_host -lopenal
+    # NOTE: Required packages: libasound2-dev (ALSA)
+    LDLIBS = -lraylib -lbrcmGLESv2 -lbrcmEGL -lpthread -lrt -lm -lbcm_host -ldl
 endif
 ifeq ($(PLATFORM),PLATFORM_WEB)
     # Libraries for web (HTML5) compiling
-    LDLIBS = $(RAYLIB_RELEASE)/libraylib.bc
-endif
-
-# Define output extension to generate a .html file using provided shell
-ifeq ($(PLATFORM),PLATFORM_WEB)
-    EXT = .html
-    WEB_SHELL = --shell-file $(RAYLIB_PATH)\templates\web_shell\shell.html
+    LDLIBS = $(RAYLIB_RELEASE_PATH)/libraylib.bc
 endif
 
 # Define all object files required
@@ -266,6 +298,7 @@ EXAMPLES = \
     textures/textures_image_processing \
     textures/textures_image_drawing \
     textures/textures_image_generation \
+    textures/textures_image_text \
     text/text_sprite_fonts \
     text/text_bmfont_ttf \
     text/text_raylib_fonts \
@@ -282,9 +315,9 @@ EXAMPLES = \
     models/models_cubicmap \
     models/models_mesh_picking \
     models/models_mesh_generation \
-    models/models_yaw_pitch_roll \
     models/models_material_pbr \
     models/models_skybox \
+    models/models_yaw_pitch_roll \
     shaders/shaders_model_shader \
     shaders/shaders_shapes_textures \
     shaders/shaders_custom_uniform \
@@ -298,7 +331,7 @@ EXAMPLES = \
     physac/physics_movement \
     physac/physics_restitution \
     physac/physics_shatter \
-    fix_dylib \
+
 
 CURRENT_MAKEFILE = $(lastword $(MAKEFILE_LIST))
 
diff --git a/examples/models/models_yaw_pitch_roll.c b/examples/models/models_yaw_pitch_roll.c
index 2bae2bf8..625fc554 100644
--- a/examples/models/models_yaw_pitch_roll.c
+++ b/examples/models/models_yaw_pitch_roll.c
@@ -119,17 +119,17 @@ int main()
 
                 BeginBlendMode(BLEND_ALPHA);
 
-                DrawTexturePro(texBackground, (Rectangle){0,0,texBackground.width, texBackground.height},
+                DrawTexturePro(texBackground, (Rectangle){ 0, 0, texBackground.width, texBackground.height },
                                (Rectangle){ centerX, centerY, texBackground.width*scaleFactor, texBackground.height*scaleFactor},
-                               (Vector2){texBackground.width/2*scaleFactor, texBackground.height/2*scaleFactor + pitchOffset*scaleFactor}, roll, WHITE);
+                               (Vector2){ texBackground.width/2*scaleFactor, texBackground.height/2*scaleFactor + pitchOffset*scaleFactor }, roll, WHITE);
 
                 DrawTexturePro(texPitch, (Rectangle){ 0, 0, texPitch.width, texPitch.height },
                                (Rectangle){ centerX, centerY, texPitch.width*scaleFactor, texPitch.height*scaleFactor },
                                (Vector2){ texPitch.width/2*scaleFactor, texPitch.height/2*scaleFactor + pitchOffset*scaleFactor }, roll, WHITE);
             
-                DrawTexturePro(texPlane, (Rectangle){0,0,texPlane.width, texPlane.height },
+                DrawTexturePro(texPlane, (Rectangle){ 0, 0, texPlane.width, texPlane.height },
                                (Rectangle){ centerX, centerY, texPlane.width*scaleFactor, texPlane.height*scaleFactor }, 
-                               (Vector2){texPlane.width/2*scaleFactor, texPlane.height/2*scaleFactor }, 0, WHITE);
+                               (Vector2){ texPlane.width/2*scaleFactor, texPlane.height/2*scaleFactor }, 0, WHITE);
                                 
                 EndBlendMode();
 
@@ -144,9 +144,9 @@ int main()
             End3dMode();
 
             // Draw 2D GUI stuff
-            DrawAngleGauge(texAngleGauge, 80, 80, roll, "roll", RED);
-            DrawAngleGauge(texAngleGauge, 190, 80, pitch, "pitch", GREEN);
-            DrawAngleGauge(texAngleGauge, 300, 80, yaw, "yaw", SKYBLUE);
+            DrawAngleGauge(texAngleGauge, 80, 70, roll, "roll", RED);
+            DrawAngleGauge(texAngleGauge, 190, 70, pitch, "pitch", GREEN);
+            DrawAngleGauge(texAngleGauge, 300, 70, yaw, "yaw", SKYBLUE);
             
             DrawRectangle(30, 360, 260, 70, Fade(SKYBLUE, 0.5f));
             DrawRectangleLines(30, 360, 260, 70, Fade(DARKBLUE, 0.5f));
diff --git a/examples/models/resources/angle_gauge.png b/examples/models/resources/angle_gauge.png
index 120f3601..f7871de6 100644
--- a/examples/models/resources/angle_gauge.png
+++ b/examples/models/resources/angle_gauge.png
diff --git a/examples/models/resources/plane.png b/examples/models/resources/plane.png
index 9f28ddb0..58951ea3 100644
--- a/examples/models/resources/plane.png
+++ b/examples/models/resources/plane.png
diff --git a/examples/others/audio_standalone.c b/examples/others/audio_standalone.c
index 0a09c988..97c3fd0d 100644
--- a/examples/others/audio_standalone.c
+++ b/examples/others/audio_standalone.c
@@ -26,14 +26,11 @@
 ********************************************************************************************/
 
 #include <stdio.h>
+#include "audio.h"
 #if defined(_WIN32)
 #include <conio.h>          // Windows only, no stardard library
-#endif
-
-#include "audio.h"
-
-#if defined(__linux__)
 
+#else
 #include <stdio.h>
 #include <termios.h>
 #include <unistd.h>
diff --git a/examples/others/resources/shaders/glsl100/standard.vs b/examples/others/resources/shaders/glsl100/standard.vs
index 49c5a3eb..2b958938 100644
--- a/examples/others/resources/shaders/glsl100/standard.vs
+++ b/examples/others/resources/shaders/glsl100/standard.vs
@@ -10,7 +10,7 @@ varying vec2 fragTexCoord;
 varying vec4 fragColor;
 varying vec3 fragNormal;
 
-uniform mat4 mvpMatrix;
+uniform mat4 mvp;
 
 void main()
 {
@@ -19,5 +19,5 @@ void main()
     fragColor = vertexColor;
     fragNormal = vertexNormal;
 
-    gl_Position = mvpMatrix*vec4(vertexPosition, 1.0);
+    gl_Position = mvp*vec4(vertexPosition, 1.0);
 }
\ No newline at end of file
diff --git a/examples/others/resources/shaders/glsl330/standard.vs b/examples/others/resources/shaders/glsl330/standard.vs
index fc0a5ff4..7fbdbf5e 100644
--- a/examples/others/resources/shaders/glsl330/standard.vs
+++ b/examples/others/resources/shaders/glsl330/standard.vs
@@ -10,7 +10,7 @@ out vec2 fragTexCoord;
 out vec4 fragColor;
 out vec3 fragNormal;
 
-uniform mat4 mvpMatrix;
+uniform mat4 mvp;
 
 void main()
 {
@@ -19,5 +19,5 @@ void main()
     fragColor = vertexColor;
     fragNormal = vertexNormal;
 
-    gl_Position = mvpMatrix*vec4(vertexPosition, 1.0);
+    gl_Position = mvp*vec4(vertexPosition, 1.0);
 }
\ No newline at end of file
diff --git a/examples/shaders/resources/shaders/glsl120/base.fs b/examples/shaders/resources/shaders/glsl120/base.fs
new file mode 100644
index 00000000..18799f95
--- /dev/null
+++ b/examples/shaders/resources/shaders/glsl120/base.fs
@@ -0,0 +1,22 @@
+#version 120
+
+// Input vertex attributes (from vertex shader)
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+// Input uniform values
+uniform sampler2D texture0;
+uniform vec4 colDiffuse;
+
+// NOTE: Add here your custom variables
+uniform vec2 resolution = vec2(800, 450);
+
+void main()
+{
+    // Texel color fetching from texture sampler
+    vec4 texelColor = texture2D(texture0, fragTexCoord);
+    
+    // NOTE: Implement here your fragment shader code
+    
+    gl_FragColor = texelColor*colDiffuse;
+}
\ No newline at end of file
diff --git a/examples/shaders/resources/shaders/glsl120/base.vs b/examples/shaders/resources/shaders/glsl120/base.vs
new file mode 100644
index 00000000..674153d8
--- /dev/null
+++ b/examples/shaders/resources/shaders/glsl120/base.vs
@@ -0,0 +1,26 @@
+#version 120
+
+// Input vertex attributes
+attribute vec3 vertexPosition;
+attribute vec2 vertexTexCoord;
+attribute vec3 vertexNormal;
+attribute vec4 vertexColor;
+
+// Input uniform values
+uniform mat4 mvp;
+
+// Output vertex attributes (to fragment shader)
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+// NOTE: Add here your custom variables 
+
+void main()
+{
+    // Send vertex attributes to fragment shader
+    fragTexCoord = vertexTexCoord;
+    fragColor = vertexColor;
+    
+    // Calculate final vertex position
+    gl_Position = mvp*vec4(vertexPosition, 1.0);
+}
\ No newline at end of file
diff --git a/examples/shaders/resources/shaders/glsl120/bloom.fs b/examples/shaders/resources/shaders/glsl120/bloom.fs
new file mode 100644
index 00000000..c28836b0
--- /dev/null
+++ b/examples/shaders/resources/shaders/glsl120/bloom.fs
@@ -0,0 +1,37 @@
+#version 120
+
+// Input vertex attributes (from vertex shader)
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+// Input uniform values
+uniform sampler2D texture0;
+uniform vec4 colDiffuse;
+
+// NOTE: Add here your custom variables
+
+const vec2 size = vec2(800, 450);   // render size
+const float samples = 5.0;          // pixels per axis; higher = bigger glow, worse performance
+const float quality = 2.5; 	        // lower = smaller glow, better quality
+
+void main()
+{
+    vec4 sum = vec4(0);
+    vec2 sizeFactor = vec2(1)/size*quality;
+
+    // Texel color fetching from texture sampler
+    vec4 source = texture2D(texture0, fragTexCoord);
+
+    const int range = 2;            // should be = (samples - 1)/2;
+
+    for (int x = -range; x <= range; x++)
+    {
+        for (int y = -range; y <= range; y++)
+        {
+            sum += texture2D(texture0, fragTexCoord + vec2(x, y)*sizeFactor);
+        }
+    }
+
+    // Calculate final fragment color
+    gl_FragColor = ((sum/(samples*samples)) + source)*colDiffuse;
+}
\ No newline at end of file
diff --git a/examples/shaders/resources/shaders/glsl120/blur.fs b/examples/shaders/resources/shaders/glsl120/blur.fs
new file mode 100644
index 00000000..99cddfc9
--- /dev/null
+++ b/examples/shaders/resources/shaders/glsl120/blur.fs
@@ -0,0 +1,32 @@
+#version 120
+
+// Input vertex attributes (from vertex shader)
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+// Input uniform values
+uniform sampler2D texture0;
+uniform vec4 colDiffuse;
+
+// NOTE: Add here your custom variables
+
+// NOTE: Render size values must be passed from code
+const float renderWidth = 800.0;
+const float renderHeight = 450.0;
+
+vec3 offset = vec3(0.0, 1.3846153846, 3.2307692308);
+vec3 weight = vec3(0.2270270270, 0.3162162162, 0.0702702703);
+
+void main() 
+{ 
+    // Texel color fetching from texture sampler
+    vec3 tc = texture2D(texture0, fragTexCoord).rgb*weight.x;
+    
+    tc += texture2D(texture0, fragTexCoord + vec2(offset.y)/renderWidth, 0.0).rgb*weight.y;
+    tc += texture2D(texture0, fragTexCoord - vec2(offset.y)/renderWidth, 0.0).rgb*weight.y;
+    
+    tc += texture2D(texture0, fragTexCoord + vec2(offset.z)/renderWidth, 0.0).rgb*weight.z;
+    tc += texture2D(texture0, fragTexCoord - vec2(offset.z)/renderWidth, 0.0).rgb*weight.z;
+
+    gl_FragColor = vec4(tc, 1.0);
+}
\ No newline at end of file
diff --git a/examples/shaders/resources/shaders/glsl120/cross_hatching.fs b/examples/shaders/resources/shaders/glsl120/cross_hatching.fs
new file mode 100644
index 00000000..46514120
--- /dev/null
+++ b/examples/shaders/resources/shaders/glsl120/cross_hatching.fs
@@ -0,0 +1,45 @@
+# version 120
+
+// Input vertex attributes (from vertex shader)
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+// Input uniform values
+uniform sampler2D texture0;
+uniform vec4 colDiffuse;
+
+// NOTE: Add here your custom variables
+
+float hatchOffsetY = 5.0;
+float lumThreshold01 = 0.9;
+float lumThreshold02 = 0.7;
+float lumThreshold03 = 0.5;
+float lumThreshold04 = 0.3;
+
+void main() 
+{
+    vec3 tc = vec3(1.0, 1.0, 1.0);
+    float lum = length(texture2D(texture0, fragTexCoord).rgb);
+
+    if (lum < lumThreshold01) 
+    {
+        if (mod(gl_FragCoord.x + gl_FragCoord.y, 10.0) == 0.0) tc = vec3(0.0, 0.0, 0.0);
+    }  
+
+    if (lum < lumThreshold02) 
+    {
+        if (mod(gl_FragCoord .x - gl_FragCoord .y, 10.0) == 0.0) tc = vec3(0.0, 0.0, 0.0);
+    }  
+
+    if (lum < lumThreshold03) 
+    {
+        if (mod(gl_FragCoord .x + gl_FragCoord .y - hatchOffsetY, 10.0) == 0.0) tc = vec3(0.0, 0.0, 0.0);
+    }  
+
+    if (lum < lumThreshold04) 
+    {
+        if (mod(gl_FragCoord .x - gl_FragCoord .y - hatchOffsetY, 10.0) == 0.0) tc = vec3(0.0, 0.0, 0.0);
+    }
+
+    gl_FragColor = vec4(tc, 1.0);
+}
\ No newline at end of file
diff --git a/examples/shaders/resources/shaders/glsl120/cross_stitching.fs b/examples/shaders/resources/shaders/glsl120/cross_stitching.fs
new file mode 100644
index 00000000..dee4617e
--- /dev/null
+++ b/examples/shaders/resources/shaders/glsl120/cross_stitching.fs
@@ -0,0 +1,55 @@
+# version 120
+
+// Input vertex attributes (from vertex shader)
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+// Input uniform values
+uniform sampler2D texture0;
+uniform vec4 colDiffuse;
+
+// NOTE: Add here your custom variables
+
+// NOTE: Render size values must be passed from code
+const float renderWidth = 800.0;
+const float renderHeight = 450.0;
+
+float stitchingSize = 6.0;
+int invert = 0;
+
+vec4 PostFX(sampler2D tex, vec2 uv)
+{
+    vec4 c = vec4(0.0);
+    float size = stitchingSize;
+    vec2 cPos = uv * vec2(renderWidth, renderHeight);
+    vec2 tlPos = floor(cPos / vec2(size, size));
+    tlPos *= size;
+
+    int remX = int(mod(cPos.x, size));
+    int remY = int(mod(cPos.y, size));
+    
+    if (remX == 0 && remY == 0) tlPos = cPos;
+    
+    vec2 blPos = tlPos;
+    blPos.y += (size - 1.0);
+    
+    if ((remX == remY) || (((int(cPos.x) - int(blPos.x)) == (int(blPos.y) - int(cPos.y)))))
+    {
+        if (invert == 1) c = vec4(0.2, 0.15, 0.05, 1.0);
+        else c = texture2D(tex, tlPos * vec2(1.0/renderWidth, 1.0/renderHeight)) * 1.4;
+    }
+    else
+    {
+        if (invert == 1) c = texture2D(tex, tlPos * vec2(1.0/renderWidth, 1.0/renderHeight)) * 1.4;
+        else c = vec4(0.0, 0.0, 0.0, 1.0);
+    }
+    
+    return c;
+}
+
+void main()
+{
+    vec3 tc = PostFX(texture0, fragTexCoord).rgb;
+
+    gl_FragColor = vec4(tc, 1.0);
+}
\ No newline at end of file
diff --git a/examples/shaders/resources/shaders/glsl120/distortion.fs b/examples/shaders/resources/shaders/glsl120/distortion.fs
new file mode 100644
index 00000000..f9d7f1e5
--- /dev/null
+++ b/examples/shaders/resources/shaders/glsl120/distortion.fs
@@ -0,0 +1,52 @@
+#version 120
+
+// Input vertex attributes (from vertex shader)
+varying vec2 fragTexCoord;
+
+// Input uniform values
+uniform sampler2D texture0;
+
+// NOTE: Default parameters for Oculus Rift DK2 device
+const vec2 LeftLensCenter = vec2(0.2863248, 0.5);
+const vec2 RightLensCenter = vec2(0.7136753, 0.5);
+const vec2 LeftScreenCenter = vec2(0.25, 0.5);
+const vec2 RightScreenCenter = vec2(0.75, 0.5);
+const vec2 Scale = vec2(0.25, 0.45);
+const vec2 ScaleIn = vec2(4.0, 2.5);
+const vec4 HmdWarpParam = vec4(1.0, 0.22, 0.24, 0.0);
+const vec4 ChromaAbParam = vec4(0.996, -0.004, 1.014, 0.0);
+
+void main()
+{
+    // The following two variables need to be set per eye
+    vec2 LensCenter = fragTexCoord.x < 0.5 ? LeftLensCenter : RightLensCenter;
+    vec2 ScreenCenter = fragTexCoord.x < 0.5 ? LeftScreenCenter : RightScreenCenter;
+    
+    // Scales input texture coordinates for distortion: vec2 HmdWarp(vec2 fragTexCoord, vec2 LensCenter)
+    vec2 theta = (fragTexCoord - LensCenter)*ScaleIn;   // Scales to [-1, 1]
+    float rSq = theta.x*theta.x + theta.y*theta.y;
+    vec2 theta1 = theta*(HmdWarpParam.x + HmdWarpParam.y*rSq + HmdWarpParam.z*rSq*rSq + HmdWarpParam.w*rSq*rSq*rSq);
+    //vec2 tc = LensCenter + Scale*theta1;
+    
+    // Detect whether blue texture coordinates are out of range since these will scaled out the furthest
+    vec2 thetaBlue = theta1*(ChromaAbParam.z + ChromaAbParam.w*rSq);
+    vec2 tcBlue = LensCenter + Scale*thetaBlue;
+
+    if (any(bvec2(clamp(tcBlue, ScreenCenter - vec2(0.25, 0.5), ScreenCenter + vec2(0.25, 0.5)) - tcBlue))) gl_FragColor = vec4(0.0, 0.0, 0.0, 1.0);
+    else
+    {
+        // Do blue texture lookup
+        float blue = texture2D(texture0, tcBlue).b;
+
+        // Do green lookup (no scaling)
+        vec2 tcGreen = LensCenter + Scale*theta1;
+        float green = texture2D(texture0, tcGreen).g;
+
+        // Do red scale and lookup
+        vec2 thetaRed = theta1*(ChromaAbParam.x + ChromaAbParam.y*rSq);
+        vec2 tcRed = LensCenter + Scale*thetaRed;
+        float red = texture2D(texture0, tcRed).r;
+
+        gl_FragColor = vec4(red, green, blue, 1.0);
+    }
+}
diff --git a/examples/shaders/resources/shaders/glsl120/dream_vision.fs b/examples/shaders/resources/shaders/glsl120/dream_vision.fs
new file mode 100644
index 00000000..4ca2a863
--- /dev/null
+++ b/examples/shaders/resources/shaders/glsl120/dream_vision.fs
@@ -0,0 +1,35 @@
+#version 120
+
+// Input vertex attributes (from vertex shader)
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+// Input uniform values
+uniform sampler2D texture0;
+uniform vec4 colDiffuse;
+
+// NOTE: Add here your custom variables
+
+void main()
+{
+    vec4 color = texture2D(texture0, fragTexCoord);
+
+    color += texture2D(texture0, fragTexCoord + 0.001);
+    color += texture2D(texture0, fragTexCoord + 0.003);
+    color += texture2D(texture0, fragTexCoord + 0.005);
+    color += texture2D(texture0, fragTexCoord + 0.007);
+    color += texture2D(texture0, fragTexCoord + 0.009);
+    color += texture2D(texture0, fragTexCoord + 0.011);
+
+    color += texture2D(texture0, fragTexCoord - 0.001);
+    color += texture2D(texture0, fragTexCoord - 0.003);
+    color += texture2D(texture0, fragTexCoord - 0.005);
+    color += texture2D(texture0, fragTexCoord - 0.007);
+    color += texture2D(texture0, fragTexCoord - 0.009);
+    color += texture2D(texture0, fragTexCoord - 0.011);
+
+    color.rgb = vec3((color.r + color.g + color.b)/3.0);
+    color = color/9.5;
+
+    gl_FragColor = color;
+}			
\ No newline at end of file
diff --git a/examples/shaders/resources/shaders/glsl120/fisheye.fs b/examples/shaders/resources/shaders/glsl120/fisheye.fs
new file mode 100644
index 00000000..6f376ba3
--- /dev/null
+++ b/examples/shaders/resources/shaders/glsl120/fisheye.fs
@@ -0,0 +1,41 @@
+#version 120
+
+// Input vertex attributes (from vertex shader)
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+// Input uniform values
+uniform sampler2D texture0;
+uniform vec4 colDiffuse;
+
+// NOTE: Add here your custom variables
+
+const float PI = 3.1415926535;
+
+void main()
+{
+    float aperture = 178.0;
+    float apertureHalf = 0.5 * aperture * (PI / 180.0);
+    float maxFactor = sin(apertureHalf);
+
+    vec2 uv = vec2(0.0);
+    vec2 xy = 2.0 * fragTexCoord.xy - 1.0;
+    float d = length(xy);
+    
+    if (d < (2.0 - maxFactor))
+    {
+        d = length(xy * maxFactor);
+        float z = sqrt(1.0 - d * d);
+        float r = atan(d, z) / PI;
+        float phi = atan(xy.y, xy.x);
+
+        uv.x = r * cos(phi) + 0.5;
+        uv.y = r * sin(phi) + 0.5;
+    }
+    else
+    {
+        uv = fragTexCoord.xy;
+    }
+
+    gl_FragColor = texture2D(texture0, uv);
+}
\ No newline at end of file
diff --git a/examples/shaders/resources/shaders/glsl120/grayscale.fs b/examples/shaders/resources/shaders/glsl120/grayscale.fs
new file mode 100644
index 00000000..4de60d22
--- /dev/null
+++ b/examples/shaders/resources/shaders/glsl120/grayscale.fs
@@ -0,0 +1,23 @@
+#version 120
+
+// Input vertex attributes (from vertex shader)
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+// Input uniform values
+uniform sampler2D texture0;
+uniform vec4 colDiffuse;
+
+// NOTE: Add here your custom variables
+
+void main()
+{
+    // Texel color fetching from texture sampler
+    vec4 texelColor = texture2D(texture0, fragTexCoord)*colDiffuse*fragColor;
+    
+    // Convert texel color to grayscale using NTSC conversion weights
+    float gray = dot(texelColor.rgb, vec3(0.299, 0.587, 0.114));
+    
+    // Calculate final fragment color
+    gl_FragColor = vec4(gray, gray, gray, texelColor.a);
+}
\ No newline at end of file
diff --git a/examples/shaders/resources/shaders/glsl120/pixelizer.fs b/examples/shaders/resources/shaders/glsl120/pixelizer.fs
new file mode 100644
index 00000000..6f741faf
--- /dev/null
+++ b/examples/shaders/resources/shaders/glsl120/pixelizer.fs
@@ -0,0 +1,30 @@
+#version 120
+
+// Input vertex attributes (from vertex shader)
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+// Input uniform values
+uniform sampler2D texture0;
+uniform vec4 colDiffuse;
+
+// NOTE: Add here your custom variables 
+
+// NOTE: Render size values must be passed from code
+const float renderWidth = 800.0;
+const float renderHeight = 450.0;
+
+float pixelWidth = 5.0;
+float pixelHeight = 5.0;
+
+void main() 
+{ 
+    float dx = pixelWidth*(1.0/renderWidth);
+    float dy = pixelHeight*(1.0/renderHeight);
+    
+    vec2 coord = vec2(dx*floor(fragTexCoord.x/dx), dy*floor(fragTexCoord.y/dy));
+    
+    vec3 tc = texture2D(texture0, coord).rgb;
+
+    gl_FragColor = vec4(tc, 1.0);
+}
\ No newline at end of file
diff --git a/examples/shaders/resources/shaders/glsl120/posterization.fs b/examples/shaders/resources/shaders/glsl120/posterization.fs
new file mode 100644
index 00000000..475b93a1
--- /dev/null
+++ b/examples/shaders/resources/shaders/glsl120/posterization.fs
@@ -0,0 +1,27 @@
+#version 120
+
+// Input vertex attributes (from vertex shader)
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+// Input uniform values
+uniform sampler2D texture0;
+uniform vec4 colDiffuse;
+
+// NOTE: Add here your custom variables
+
+float gamma = 0.6;
+float numColors = 8.0;
+
+void main() 
+{ 
+    vec3 color = texture2D(texture0, fragTexCoord.xy).rgb;
+    
+    color = pow(color, vec3(gamma, gamma, gamma));
+    color = color*numColors;
+    color = floor(color);
+    color = color/numColors;
+    color = pow(color, vec3(1.0/gamma));
+    
+    gl_FragColor = vec4(color, 1.0);
+}
\ No newline at end of file
diff --git a/examples/shaders/resources/shaders/glsl120/predator.fs b/examples/shaders/resources/shaders/glsl120/predator.fs
new file mode 100644
index 00000000..2999cc8d
--- /dev/null
+++ b/examples/shaders/resources/shaders/glsl120/predator.fs
@@ -0,0 +1,29 @@
+#version 120
+
+// Input vertex attributes (from vertex shader)
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+// Input uniform values
+uniform sampler2D texture0;
+uniform vec4 colDiffuse;
+
+// NOTE: Add here your custom variables
+
+void main() 
+{
+    vec3 color = texture2D(texture0, fragTexCoord).rgb;
+    vec3 colors[3];
+    colors[0] = vec3(0.0, 0.0, 1.0);
+    colors[1] = vec3(1.0, 1.0, 0.0);
+    colors[2] = vec3(1.0, 0.0, 0.0);
+    
+    float lum = (color.r + color.g + color.b)/3.0;
+
+    vec3 tc = vec3(0.0, 0.0, 0.0);
+    
+    if (lum < 0.5) tc = mix(colors[0], colors[1], lum/0.5);
+    else tc = mix(colors[1], colors[2], (lum - 0.5)/0.5);
+
+    gl_FragColor = vec4(tc, 1.0);
+}
\ No newline at end of file
diff --git a/examples/shaders/resources/shaders/glsl120/scanlines.fs b/examples/shaders/resources/shaders/glsl120/scanlines.fs
new file mode 100644
index 00000000..929c79eb
--- /dev/null
+++ b/examples/shaders/resources/shaders/glsl120/scanlines.fs
@@ -0,0 +1,42 @@
+#version 120
+
+// Input vertex attributes (from vertex shader)
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+// Input uniform values
+uniform sampler2D texture0;
+uniform vec4 colDiffuse;
+
+// NOTE: Add here your custom variables
+
+float offset = 0.0;
+float frequency = 450.0/3.0;
+
+uniform float time;
+
+void main()
+{
+/*
+    // Scanlines method 1
+    float tval = 0; //time
+    vec2 uv = 0.5 + (fragTexCoord - 0.5)*(0.9 + 0.01*sin(0.5*tval));
+
+    vec4 color = texture2D(texture0, fragTexCoord);
+
+    color = clamp(color*0.5 + 0.5*color*color*1.2, 0.0, 1.0);
+    color *= 0.5 + 0.5*16.0*uv.x*uv.y*(1.0 - uv.x)*(1.0 - uv.y);
+    color *= vec4(0.8, 1.0, 0.7, 1);
+    color *= 0.9 + 0.1*sin(10.0*tval + uv.y*1000.0);
+    color *= 0.97 + 0.03*sin(110.0*tval);
+
+    fragColor = color;
+*/
+    // Scanlines method 2
+    float globalPos = (fragTexCoord.y + offset) * frequency;
+    float wavePos = cos((fract(globalPos) - 0.5)*3.14);
+    
+    vec4 color = texture2D(texture0, fragTexCoord);
+
+    gl_FragColor = mix(vec4(0.0, 0.3, 0.0, 0.0), color, wavePos);
+}
\ No newline at end of file
diff --git a/examples/shaders/resources/shaders/glsl120/sobel.fs b/examples/shaders/resources/shaders/glsl120/sobel.fs
new file mode 100644
index 00000000..a3f3f2bf
--- /dev/null
+++ b/examples/shaders/resources/shaders/glsl120/sobel.fs
@@ -0,0 +1,38 @@
+#version 120
+
+// Input vertex attributes (from vertex shader)
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+// Input uniform values
+uniform sampler2D texture0;
+uniform vec4 colDiffuse;
+
+// NOTE: Add here your custom variables
+vec2 resolution = vec2(800.0, 450.0);
+
+void main() 
+{
+	float x = 1.0/resolution.x;
+	float y = 1.0/resolution.y;
+    
+	vec4 horizEdge = vec4(0.0);
+	horizEdge -= texture2D(texture0, vec2(fragTexCoord.x - x, fragTexCoord.y - y))*1.0;
+	horizEdge -= texture2D(texture0, vec2(fragTexCoord.x - x, fragTexCoord.y    ))*2.0;
+	horizEdge -= texture2D(texture0, vec2(fragTexCoord.x - x, fragTexCoord.y + y))*1.0;
+	horizEdge += texture2D(texture0, vec2(fragTexCoord.x + x, fragTexCoord.y - y))*1.0;
+	horizEdge += texture2D(texture0, vec2(fragTexCoord.x + x, fragTexCoord.y    ))*2.0;
+	horizEdge += texture2D(texture0, vec2(fragTexCoord.x + x, fragTexCoord.y + y))*1.0;
+    
+	vec4 vertEdge = vec4(0.0);
+	vertEdge -= texture2D(texture0, vec2(fragTexCoord.x - x, fragTexCoord.y - y))*1.0;
+	vertEdge -= texture2D(texture0, vec2(fragTexCoord.x    , fragTexCoord.y - y))*2.0;
+	vertEdge -= texture2D(texture0, vec2(fragTexCoord.x + x, fragTexCoord.y - y))*1.0;
+	vertEdge += texture2D(texture0, vec2(fragTexCoord.x - x, fragTexCoord.y + y))*1.0;
+	vertEdge += texture2D(texture0, vec2(fragTexCoord.x    , fragTexCoord.y + y))*2.0;
+	vertEdge += texture2D(texture0, vec2(fragTexCoord.x + x, fragTexCoord.y + y))*1.0;
+    
+	vec3 edge = sqrt((horizEdge.rgb*horizEdge.rgb) + (vertEdge.rgb*vertEdge.rgb));
+	
+	gl_FragColor = vec4(edge, texture2D(texture0, fragTexCoord).a);
+}
\ No newline at end of file
diff --git a/examples/shaders/resources/shaders/glsl120/swirl.fs b/examples/shaders/resources/shaders/glsl120/swirl.fs
new file mode 100644
index 00000000..0618e013
--- /dev/null
+++ b/examples/shaders/resources/shaders/glsl120/swirl.fs
@@ -0,0 +1,44 @@
+#version 120
+
+// Input vertex attributes (from vertex shader)
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+// Input uniform values
+uniform sampler2D texture0;
+uniform vec4 colDiffuse;
+
+// NOTE: Add here your custom variables
+
+// NOTE: Render size values should be passed from code
+const float renderWidth = 800;
+const float renderHeight = 450;
+
+float radius = 250.0;
+float angle = 0.8;
+
+uniform vec2 center;
+
+void main()
+{
+    vec2 texSize = vec2(renderWidth, renderHeight);
+    vec2 tc = fragTexCoord*texSize;
+    tc -= center;
+    
+    float dist = length(tc);
+
+    if (dist < radius) 
+    {
+        float percent = (radius - dist)/radius;
+        float theta = percent*percent*angle*8.0;
+        float s = sin(theta);
+        float c = cos(theta);
+        
+        tc = vec2(dot(tc, vec2(c, -s)), dot(tc, vec2(s, c)));
+    }
+
+    tc += center;
+    vec4 color = texture2D(texture0, tc/texSize)*colDiffuse*fragColor;;
+
+    gl_FragColor = vec4(color.rgb, 1.0);;
+}
\ No newline at end of file
diff --git a/examples/shaders/shaders_postprocessing.c b/examples/shaders/shaders_postprocessing.c
index 4aac5f91..b8b5f6ae 100644
--- a/examples/shaders/shaders_postprocessing.c
+++ b/examples/shaders/shaders_postprocessing.c
@@ -20,10 +20,8 @@
 
 #if defined(PLATFORM_DESKTOP)
     #define GLSL_VERSION            330
-    #define DEFAULT_VERTEX_SHADER   "resources/shaders/glsl330/base.vs"
 #else   // PLATFORM_RPI, PLATFORM_ANDROID, PLATFORM_WEB
     #define GLSL_VERSION            100
-    #define DEFAULT_VERTEX_SHADER   "resources/shaders/glsl100/base.vs"
 #endif
 
 #define MAX_POSTPRO_SHADERS         12
@@ -85,18 +83,19 @@ int main()
     // NOTE 2: We load the correct shader depending on GLSL version
     Shader shaders[MAX_POSTPRO_SHADERS];
     
-    shaders[FX_GRAYSCALE] = LoadShader(DEFAULT_VERTEX_SHADER, FormatText("resources/shaders/glsl%i/grayscale.fs", GLSL_VERSION));
-    shaders[FX_POSTERIZATION] = LoadShader(DEFAULT_VERTEX_SHADER, FormatText("resources/shaders/glsl%i/posterization.fs", GLSL_VERSION));
-    shaders[FX_DREAM_VISION] = LoadShader(DEFAULT_VERTEX_SHADER, FormatText("resources/shaders/glsl%i/dream_vision.fs", GLSL_VERSION));
-    shaders[FX_PIXELIZER] = LoadShader(DEFAULT_VERTEX_SHADER, FormatText("resources/shaders/glsl%i/pixelizer.fs", GLSL_VERSION));
-    shaders[FX_CROSS_HATCHING] = LoadShader(DEFAULT_VERTEX_SHADER, FormatText("resources/shaders/glsl%i/cross_hatching.fs", GLSL_VERSION));
-    shaders[FX_CROSS_STITCHING] = LoadShader(DEFAULT_VERTEX_SHADER, FormatText("resources/shaders/glsl%i/cross_stitching.fs", GLSL_VERSION));
-    shaders[FX_PREDATOR_VIEW] = LoadShader(DEFAULT_VERTEX_SHADER, FormatText("resources/shaders/glsl%i/predator.fs", GLSL_VERSION));
-    shaders[FX_SCANLINES] = LoadShader(DEFAULT_VERTEX_SHADER, FormatText("resources/shaders/glsl%i/scanlines.fs", GLSL_VERSION));
-    shaders[FX_FISHEYE] = LoadShader(DEFAULT_VERTEX_SHADER, FormatText("resources/shaders/glsl%i/fisheye.fs", GLSL_VERSION));
-    shaders[FX_SOBEL] = LoadShader(DEFAULT_VERTEX_SHADER, FormatText("resources/shaders/glsl%i/sobel.fs", GLSL_VERSION));
-    shaders[FX_BLOOM] = LoadShader(DEFAULT_VERTEX_SHADER, FormatText("resources/shaders/glsl%i/bloom.fs", GLSL_VERSION));
-    shaders[FX_BLUR] = LoadShader(DEFAULT_VERTEX_SHADER, FormatText("resources/shaders/glsl%i/blur.fs", GLSL_VERSION));
+    // NOTE: Defining 0 (NULL) for vertex shader forces usage of internal default vertex shader
+    shaders[FX_GRAYSCALE] = LoadShader(0, FormatText("resources/shaders/glsl%i/grayscale.fs", GLSL_VERSION));
+    shaders[FX_POSTERIZATION] = LoadShader(0, FormatText("resources/shaders/glsl%i/posterization.fs", GLSL_VERSION));
+    shaders[FX_DREAM_VISION] = LoadShader(0, FormatText("resources/shaders/glsl%i/dream_vision.fs", GLSL_VERSION));
+    shaders[FX_PIXELIZER] = LoadShader(0, FormatText("resources/shaders/glsl%i/pixelizer.fs", GLSL_VERSION));
+    shaders[FX_CROSS_HATCHING] = LoadShader(0, FormatText("resources/shaders/glsl%i/cross_hatching.fs", GLSL_VERSION));
+    shaders[FX_CROSS_STITCHING] = LoadShader(0, FormatText("resources/shaders/glsl%i/cross_stitching.fs", GLSL_VERSION));
+    shaders[FX_PREDATOR_VIEW] = LoadShader(0, FormatText("resources/shaders/glsl%i/predator.fs", GLSL_VERSION));
+    shaders[FX_SCANLINES] = LoadShader(0, FormatText("resources/shaders/glsl%i/scanlines.fs", GLSL_VERSION));
+    shaders[FX_FISHEYE] = LoadShader(0, FormatText("resources/shaders/glsl%i/fisheye.fs", GLSL_VERSION));
+    shaders[FX_SOBEL] = LoadShader(0, FormatText("resources/shaders/glsl%i/sobel.fs", GLSL_VERSION));
+    shaders[FX_BLOOM] = LoadShader(0, FormatText("resources/shaders/glsl%i/bloom.fs", GLSL_VERSION));
+    shaders[FX_BLUR] = LoadShader(0, FormatText("resources/shaders/glsl%i/blur.fs", GLSL_VERSION));
     
     int currentShader = FX_GRAYSCALE;
 
@@ -177,4 +176,4 @@ int main()
     //--------------------------------------------------------------------------------------
 
     return 0;
-}
\ No newline at end of file
+}
diff --git a/examples/text/text_input_box.c b/examples/text/text_input_box.c
index 54eebf40..5f8d1c01 100644
--- a/examples/text/text_input_box.c
+++ b/examples/text/text_input_box.c
@@ -52,7 +52,7 @@ int main()
                 letterCount++;
             }
             
-            if (key == KEY_BACKSPACE)
+            if (IsKeyPressed(KEY_BACKSPACE))
             {
                 letterCount--;
                 name[letterCount] = '\0';
diff --git a/examples/text/text_ttf_loading.c b/examples/text/text_ttf_loading.c
index c9c2fb27..fedfbfb8 100644
--- a/examples/text/text_ttf_loading.c
+++ b/examples/text/text_ttf_loading.c
@@ -32,7 +32,7 @@ int main()
     GenTextureMipmaps(&font.texture);
 
     float fontSize = font.baseSize;
-    Vector2 fontPosition = { 40, screenHeight/2 + 50 };
+    Vector2 fontPosition = { 40, screenHeight/2 - 50 };
     Vector2 textSize;
 
     SetTextureFilter(font.texture, FILTER_POINT);
diff --git a/examples/textures/resources/KAISG.ttf b/examples/textures/resources/KAISG.ttf
new file mode 100644
index 00000000..04478b25
--- /dev/null
+++ b/examples/textures/resources/KAISG.ttf
diff --git a/examples/textures/textures_image_generation.c b/examples/textures/textures_image_generation.c
index 7d8e017e..790c34f1 100644
--- a/examples/textures/textures_image_generation.c
+++ b/examples/textures/textures_image_generation.c
@@ -24,10 +24,10 @@ int main()
 
     Image verticalGradient = GenImageGradientV(screenWidth, screenHeight, RED, BLUE);
     Image horizontalGradient = GenImageGradientH(screenWidth, screenHeight, RED, BLUE);
-    Image radialGradient = GenImageGradientRadial(screenWidth, screenHeight, 0.f, WHITE, BLACK);
+    Image radialGradient = GenImageGradientRadial(screenWidth, screenHeight, 0.0f, WHITE, BLACK);
     Image checked = GenImageChecked(screenWidth, screenHeight, 32, 32, RED, BLUE);
     Image whiteNoise = GenImageWhiteNoise(screenWidth, screenHeight, 0.5f);
-    Image perlinNoise = GenImagePerlinNoise(screenWidth, screenHeight, 8.f);
+    Image perlinNoise = GenImagePerlinNoise(screenWidth, screenHeight, 50, 50, 4.0f);
     Image cellular = GenImageCellular(screenWidth, screenHeight, 32);
 
     Texture2D textures[NUM_TEXTURES];
diff --git a/examples/textures/textures_image_text.c b/examples/textures/textures_image_text.c
new file mode 100644
index 00000000..1d4231f7
--- /dev/null
+++ b/examples/textures/textures_image_text.c
@@ -0,0 +1,83 @@
+/*******************************************************************************************
+*
+*   raylib [texture] example - Image text drawing using TTF generated spritefont
+*
+*   This example has been created using raylib 1.8 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Copyright (c) 2017 Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+#include "raylib.h"
+
+int main()
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    int screenWidth = 800;
+    int screenHeight = 450;
+
+    InitWindow(screenWidth, screenHeight, "raylib [texture] example - image text drawing");
+    
+    // TTF SpriteFont loading with custom generation parameters
+    SpriteFont font = LoadSpriteFontEx("resources/KAISG.ttf", 64, 0, 0);
+    
+    Image parrots = LoadImage("resources/parrots.png"); // Load image in CPU memory (RAM)
+
+    // Draw over image using custom font
+    ImageDrawTextEx(&parrots, (Vector2){ 20, 20 }, font, "[Parrots font drawing]", font.baseSize, 0, WHITE);
+
+    Texture2D texture = LoadTextureFromImage(parrots);  // Image converted to texture, uploaded to GPU memory (VRAM)
+    UnloadImage(parrots);   // Once image has been converted to texture and uploaded to VRAM, it can be unloaded from RAM
+    
+    Vector2 position = { screenWidth/2 - texture.width/2, screenHeight/2 - texture.height/2 - 20 };
+    
+    bool showFont = false;
+
+    SetTargetFPS(60);
+    //--------------------------------------------------------------------------------------
+
+    // Main game loop
+    while (!WindowShouldClose())    // Detect window close button or ESC key
+    {
+        // Update
+        //----------------------------------------------------------------------------------
+        if (IsKeyDown(KEY_SPACE)) showFont = true;
+        else showFont = false;
+        //----------------------------------------------------------------------------------
+
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(RAYWHITE);
+
+            if (!showFont)
+            {
+                // Draw texture with text already drawn inside
+                DrawTextureV(texture, position, WHITE);
+                
+                // Draw text directly using sprite font
+                DrawTextEx(font, "[Parrots font drawing]", (Vector2){ position.x + 20, 
+                           position.y + 20 + 280 }, font.baseSize, 0, WHITE);
+            }
+            else DrawTexture(font.texture, screenWidth/2 - font.texture.width/2, 50, BLACK);
+            
+            DrawText("PRESS SPACE to SEE USED SPRITEFONT ", 290, 420, 10, DARKGRAY);
+        
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    UnloadTexture(texture);     // Texture unloading
+        
+    UnloadSpriteFont(font);     // Unload custom spritefont
+    
+    CloseWindow();              // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+}
\ No newline at end of file
diff --git a/examples/textures/textures_image_text.png b/examples/textures/textures_image_text.png
new file mode 100644
index 00000000..dafbabfb
--- /dev/null
+++ b/examples/textures/textures_image_text.png