1 files changed, 28 insertions, 0 deletions
diff --git a/src/Renderer.cpp b/src/Renderer.cpp
index 8aaf9c5..b02c5ff 100644
--- a/src/Renderer.cpp
+++ b/src/Renderer.cpp
@@ -23,6 +23,7 @@
 namespace Zoom {
 
 Renderer::Renderer() : activeTexture(0), renderVisitor(this) {
+  nullShader = boost::shared_ptr<Shader>(Shader::load("null.vert", "null.frag"));
   ambientShader = boost::shared_ptr<Shader>(Shader::load("ambient.vert", "ambient.frag"));
   lightShader = boost::shared_ptr<Shader>(Shader::load("light.vert", "light.frag"));
 }
@@ -57,6 +58,33 @@ void Renderer::renderTriangle(const Triangle &t) {
   }
 }
 
+void Renderer::renderShadowVolume(const ShadowVolume &v) {
+  if(!v.isVisible())
+    return;
+
+  glVertex3fv(v.getVertex(2).array);
+  glVertex3fv(v.getVertex(1).array);
+  glVertex3fv(v.getVertex(0).array);
+
+  for(int i = 0; i < 3; ++i) {
+    const vmml::vec3f &p1 = v.getVertex(i), &p2 = v.getVertex((i+1)%3);
+    const vmml::vec4f &dir1 = vmml::vec4f(v.getDirection(i), 0);
+    const vmml::vec4f &dir2 = vmml::vec4f(v.getDirection((i+1)%3), 0);
+
+    glVertex3fv(p1.array);
+    glVertex3fv(p2.array);
+    glVertex4fv(dir1.array);
+
+    glVertex4fv(dir1.array);
+    glVertex3fv(p2.array);
+    glVertex4fv(dir2.array);
+  }
+
+  glVertex4fv(vmml::vec4f(v.getDirection(0), 0).array);
+  glVertex4fv(vmml::vec4f(v.getDirection(1), 0).array);
+  glVertex4fv(vmml::vec4f(v.getDirection(2), 0).array);
+}
+
 void Renderer::useTexture(unsigned texture) {
   if(texture) {
     glBindTexture(GL_TEXTURE_2D, texture);