diff --git a/OpenGL4/HeightMap.cpp b/OpenGL4/HeightMap.cpp
index 6d56dfe..f5b0606 100644
--- a/OpenGL4/HeightMap.cpp
+++ b/OpenGL4/HeightMap.cpp
@@ -6,13 +6,12 @@
 #include <string>
 
 GLuint imageIndex;
+int scale = 50;
 
 HeightMap::HeightMap(const std::string &file)
 {
 	int bpp;
 	unsigned char* imgData = stbi_load(file.c_str(), &width, &height, &bpp, 4);
-	
-	int scale = 50;
 
 	for (int h = 0; h < height; h++)
 	{
@@ -72,4 +71,9 @@ void HeightMap::Draw()
 	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
 	//glDisableClientState(GL_COLOR_ARRAY);
 	//glDisableClientState(GL_NORMAL_ARRAY);
+}
+
+void HeightMap::GetHeigth(float x, float z)
+{
+
 }
\ No newline at end of file
diff --git a/OpenGL4/HeightMap.h b/OpenGL4/HeightMap.h
index 9b04fb3..f59f378 100644
--- a/OpenGL4/HeightMap.h
+++ b/OpenGL4/HeightMap.h
@@ -12,6 +12,7 @@ public:
 	~HeightMap();
 
 	void Draw();
+	void GetHeigth(float x, float z);
 
 	struct Vertex {
 		float x;
diff --git a/OpenGL4/Main.cpp b/OpenGL4/Main.cpp
index fa53e1e..cc14694 100644
--- a/OpenGL4/Main.cpp
+++ b/OpenGL4/Main.cpp
@@ -34,7 +34,7 @@ struct Vertex
 };
 
 std::vector<Vertex> cubeVertices;
-
+float speed = 1000;
 
 void drawCube()
 {
@@ -63,7 +63,7 @@ void display()
 
 	glMatrixMode(GL_PROJECTION);
 	glLoadIdentity();
-	gluPerspective(60.0f, (float)width/height, 0.1, 15000);
+	gluPerspective(60.0f, (float)width/height, 0.1, 100000);
 
 	glMatrixMode(GL_MODELVIEW);
 	glLoadIdentity();
@@ -123,13 +123,14 @@ void idle()
 	float deltaTime = frameTime - lastFrameTime;
 	lastFrameTime = frameTime;
 
-	const float speed = 500;
 	if (keys['a']) move(0, deltaTime*speed);
 	if (keys['d']) move(180, deltaTime*speed);
 	if (keys['w']) move(90, deltaTime*speed);
 	if (keys['s']) move(270, deltaTime*speed);
 	if (keys['q']) moveVert(1, deltaTime*speed);
 	if (keys['e']) moveVert(-1, deltaTime*speed);
+	if (keys['+']) speed += 100;
+	if (keys['-']) speed -= speed <= 100 ? 0 : 100;
 
 	glutPostRedisplay();
 }
@@ -186,7 +187,7 @@ int main(int argc, char* argv[])
 	glutKeyboardUpFunc(keyboardUp);
 	glutPassiveMotionFunc(mousePassiveMotion);
 
-	heightmap = new HeightMap("worlds/HMCSHeightmap.gif");
+	heightmap = new HeightMap("worlds/alps.png");
 
 	cubeVertices.push_back(Vertex{ -1, -1, -1, 0,0,1, 1,1,1,1 });
 	cubeVertices.push_back(Vertex{ -1,  1, -1, 0,0,1, 1,1,1,1 });
diff --git a/OpenGL4/worlds/alps.png b/OpenGL4/worlds/alps.png
new file mode 100644
index 0000000..bc8e990
Binary files /dev/null and b/OpenGL4/worlds/alps.png differ
diff --git a/OpenGL4/worlds/awesome.png b/OpenGL4/worlds/awesome.png
new file mode 100644
index 0000000..7dd3c74
Binary files /dev/null and b/OpenGL4/worlds/awesome.png differ