diff --git a/app.cc b/app.cc
index 108c07a..4b348ec 100644
--- a/app.cc
+++ b/app.cc
@@ -3,12 +3,25 @@
 #include "glcxx.hpp"
 #include "GL3/gl3w.h"
 #include <iostream>
+#include "glm/glm.hpp"
+#include "glm/gtc/matrix_transform.hpp"
 
 using namespace std;
 
 std::shared_ptr<glcxx::Program> program;
 std::shared_ptr<glcxx::Buffer> cube_buffer;
 std::shared_ptr<glcxx::Array> cube_array;
+static struct
+{
+    GLint ambient;
+    GLint specular;
+    GLint shininess;
+    GLint tex;
+    GLint projection;
+    GLint modelview;
+} uniforms;
+glm::mat4 modelview;
+glm::mat4 projection;
 
 #define WIDTH   800
 #define HEIGHT  800
@@ -26,6 +39,12 @@ bool init(void)
             "position", 0,
             "normal", 1,
             "tex_coord", 2);
+        uniforms.ambient = program->get_uniform_location("ambient");
+        uniforms.specular = program->get_uniform_location("specular");
+        uniforms.shininess = program->get_uniform_location("shininess");
+        uniforms.tex = program->get_uniform_location("tex");
+        uniforms.projection = program->get_uniform_location("projection");
+        uniforms.modelview = program->get_uniform_location("modelview");
 
         cube_buffer = glcxx::Buffer::create(GL_ARRAY_BUFFER, GL_STATIC_DRAW,
                                             {-1, -1, -1,  0, 0, -1,  0, 0,
@@ -40,6 +59,9 @@ bool init(void)
         glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(GLfloat), NULL);
         glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(GLfloat), (void *)(3 * sizeof(GLfloat)));
         glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 8 * sizeof(GLfloat), (void *)(6 * sizeof(GLfloat)));
+
+        modelview = glm::translate(glm::mat4(1.0), glm::vec3(0, 0, -3));
+        projection = glm::perspective(60.0f, (float)WIDTH / (float)HEIGHT, 0.1f, 1000.0f);
     }
     catch (glcxx::Error & e)
     {
@@ -52,6 +74,16 @@ bool init(void)
 void display(SDL_Window * window)
 {
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+    program->use();
+    cube_array->bind();
+    glUniform4f(uniforms.ambient, 1.0, 1.0, 1.0, 1.0);
+    glUniform4f(uniforms.specular, 1.0, 1.0, 1.0, 1.0);
+    glUniform1f(uniforms.shininess, 1.0);
+    glUniformMatrix4fv(uniforms.modelview, 1, GL_FALSE, &modelview[0][0]);
+    glUniformMatrix4fv(uniforms.projection, 1, GL_FALSE, &projection[0][0]);
+    glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+
     SDL_GL_SwapWindow(window);
 }