actually add vendor folder

vendor/raylib-cpp/examples/shaders/resources/shaders/glsl100/wave.fs

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+#version 100
+
+precision mediump float;
+
+// Input vertex attributes (from vertex shader)
+varying vec2 fragTexCoord;
+varying vec4 fragColor;
+
+// Input uniform values
+uniform sampler2D texture0;
+uniform vec4 colDiffuse;
+
+uniform float secondes;
+
+uniform vec2 size;
+
+uniform float freqX;
+uniform float freqY;
+uniform float ampX;
+uniform float ampY;
+uniform float speedX;
+uniform float speedY;
+
+void main() {
+    float pixelWidth = 1.0 / size.x;
+    float pixelHeight = 1.0 / size.y;
+    float aspect = pixelHeight / pixelWidth;
+    float boxLeft = 0.0;
+    float boxTop = 0.0;
+
+    vec2 p = fragTexCoord;
+    p.x += cos((fragTexCoord.y - boxTop) * freqX / ( pixelWidth * 750.0) + (secondes * speedX)) * ampX * pixelWidth;
+    p.y += sin((fragTexCoord.x - boxLeft) * freqY * aspect / ( pixelHeight * 750.0) + (secondes * speedY)) * ampY * pixelHeight;
+
+    gl_FragColor = texture2D(texture0, p)*colDiffuse*fragColor;
+}

vendor/raylib-cpp/examples/shaders/resources/shaders/glsl330/wave.fs

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+#version 330
+
+// Input vertex attributes (from vertex shader)
+in vec2 fragTexCoord;
+in vec4 fragColor;
+
+// Input uniform values
+uniform sampler2D texture0;
+uniform vec4 colDiffuse;
+
+// Output fragment color
+out vec4 finalColor;
+
+uniform float secondes;
+
+uniform vec2 size;
+
+uniform float freqX;
+uniform float freqY;
+uniform float ampX;
+uniform float ampY;
+uniform float speedX;
+uniform float speedY;
+
+void main() {
+    float pixelWidth = 1.0 / size.x;
+    float pixelHeight = 1.0 / size.y;
+    float aspect = pixelHeight / pixelWidth;
+    float boxLeft = 0.0;
+    float boxTop = 0.0;
+
+    vec2 p = fragTexCoord;
+    p.x += cos((fragTexCoord.y - boxTop) * freqX / ( pixelWidth * 750.0) + (secondes * speedX)) * ampX * pixelWidth;
+    p.y += sin((fragTexCoord.x - boxLeft) * freqY * aspect / ( pixelHeight * 750.0) + (secondes * speedY)) * ampY * pixelHeight;
+
+    finalColor = texture(texture0, p)*colDiffuse*fragColor;
+}

vendor/raylib-cpp/examples/shaders/shaders_texture_waves.cpp

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+/*******************************************************************************************
+*
+*   raylib [shaders] example - Texture Waves
+*
+*   NOTE: This example requires raylib OpenGL 3.3 or ES2 versions for shaders support,
+*         OpenGL 1.1 does not support shaders, recompile raylib to OpenGL 3.3 version.
+*
+*   NOTE: Shaders used in this example are #version 330 (OpenGL 3.3), to test this example
+*         on OpenGL ES 2.0 platforms (Android, Raspberry Pi, HTML5), use #version 100 shaders
+*         raylib comes with shaders ready for both versions, check raylib/shaders install folder
+*
+*   This example has been created using raylib 2.5 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Example contributed by Anata (@anatagawa) and reviewed by Ramon Santamaria (@raysan5)
+*
+*   Copyright (c) 2019 Anata (@anatagawa) and Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+#include "raylib-cpp.hpp"
+
+#if defined(PLATFORM_DESKTOP)
+    #define GLSL_VERSION            330
+#else   // PLATFORM_RPI, PLATFORM_ANDROID, PLATFORM_WEB
+    #define GLSL_VERSION            100
+#endif
+
+int main(void)
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    const int screenWidth = 800;
+    const int screenHeight = 450;
+
+    raylib::Window window(screenWidth, screenHeight, "raylib-cpp [shaders] example - texture waves");
+
+    // Load texture texture to apply shaders
+    raylib::Texture2D texture("resources/space.png");
+
+    // Load shader and setup location points and values
+    raylib::Shader shader(0, TextFormat("resources/shaders/glsl%i/wave.fs", GLSL_VERSION));
+
+    int secondsLoc = shader.GetLocation("secondes");
+    int freqXLoc = shader.GetLocation("freqX");
+    int freqYLoc = shader.GetLocation("freqY");
+    int ampXLoc = shader.GetLocation("ampX");
+    int ampYLoc = shader.GetLocation("ampY");
+    int speedXLoc = shader.GetLocation("speedX");
+    int speedYLoc = shader.GetLocation("speedY");
+
+    // Shader uniform values that can be updated at any time
+    float freqX = 25.0f;
+    float freqY = 25.0f;
+    float ampX = 5.0f;
+    float ampY = 5.0f;
+    float speedX = 8.0f;
+    float speedY = 8.0f;
+
+    float screenSize[2] = { (float)window.GetWidth(), (float)window.GetHeight() };
+    shader.SetValue(shader.GetLocation("size"), &screenSize, SHADER_UNIFORM_VEC2);
+    shader.SetValue(freqXLoc, &freqX, SHADER_UNIFORM_FLOAT);
+    shader.SetValue(freqYLoc, &freqY, SHADER_UNIFORM_FLOAT);
+    shader.SetValue(ampXLoc, &ampX, SHADER_UNIFORM_FLOAT);
+    shader.SetValue(ampYLoc, &ampY, SHADER_UNIFORM_FLOAT);
+    shader.SetValue(speedXLoc, &speedX, SHADER_UNIFORM_FLOAT);
+    shader.SetValue(speedYLoc, &speedY, SHADER_UNIFORM_FLOAT);
+
+    float seconds = 0.0f;
+
+    window.SetTargetFPS(60);               // Set our game to run at 60 frames-per-second
+    // -------------------------------------------------------------------------------------------------------------
+
+    // Main game loop
+    while (!window.ShouldClose())    // Detect window close button or ESC key
+    {
+        // Update
+        //----------------------------------------------------------------------------------
+        seconds += GetFrameTime();
+
+        shader.SetValue(secondsLoc, &seconds, SHADER_UNIFORM_FLOAT);
+        //----------------------------------------------------------------------------------
+
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(RAYWHITE);
+
+            shader.BeginMode();
+
+                texture.Draw(0, 0, WHITE);
+                texture.Draw(texture.GetWidth(), 0, WHITE);
+
+            EndShaderMode();
+
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    return 0;
+}