diff --git a/src/light.cpp b/src/light.cpp
index 8dced5a..7696a09 100644
--- a/src/light.cpp
+++ b/src/light.cpp
@@ -62,6 +62,12 @@ bool Light::isDirectionnal()
 
 void Light::initShadowMap(int resWidth, int resHeight, glm::vec3 dim)
 {
+    viewMatrix = glm::lookAt(position, position+direction, glm::vec3(0, 1, 0));
+    if(type == DIRECTIONNAL)
+        projectionMatrix = glm::ortho(-dim.x/2, dim.x/2, -dim.y/2, dim.y/2, -dim.z/2, dim.z/2);
+    else
+        ; // TODO : glm::projection
+
     shadowCaster = true;
     shadowMap = new FrameBuffer();
     // Depth buffer
@@ -81,8 +87,6 @@ void Light::initShadowMap(int resWidth, int resHeight, glm::vec3 dim)
 
 void Light::generateShadowMap(Scene* scene)
 {
-    viewMatrix = glm::lookAt(position, position+direction, glm::vec3(0, 1, 0));
-
     shadowMap->bindFBO();
     glAssert(glEnable(GL_DEPTH_TEST));
     for(SceneIterator<PhongEntity*>* entityIt = scene->getGeometry();
@@ -96,7 +100,7 @@ void Light::generateShadowMap(Scene* scene)
         for(int j=0; j<entity->getMesh()->indiceGroups.size(); ++j)
         {
             Material* mat = entity->getMesh()->indiceGroups[j].material;
-            if(mat->getFlags() & ALPHA_MASK)
+            if(mat->getFlags() & ALPHA_MASK_FLAG)
             {
                 PhongMaterial* pmat = (PhongMaterial*)mat;
                 shaders[1]->bind();
diff --git a/src/sparrowrenderer.cpp b/src/sparrowrenderer.cpp
index 7d0c652..1ed01cc 100644
--- a/src/sparrowrenderer.cpp
+++ b/src/sparrowrenderer.cpp
@@ -1,8 +1,11 @@
 #include <glew/glew.h>
+#include <GL/gl.h>
+#include <GL/glext.h>
 #include <cstdio>
 #include "sparrowrenderer.h"
 #include "glassert.h"
 #include "camera.h"
+#include "framebuffer.h"
 #include "module.h"
 #include <chrono>
 
@@ -60,6 +63,7 @@ void SparrowRenderer::resizeGL(int width, int height)
 
 void SparrowRenderer::renderGL()
 {
+    FrameBuffer::screen->bindFBO();
     glAssert(glClearColor(clearColor.r, clearColor.g, clearColor.b, 1));
     glAssert(glClearDepth(1.0));
     glAssert(glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT));