From f3d9a3b437723b9ce50d46eed4c836d8ce583c2c Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop+git@gmail.com>
Date: Wed, 4 May 2011 20:05:06 -0400
Subject: [PATCH] add renderMaterial(), call glDrawElements()

---
 wfobj-view.cc | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/wfobj-view.cc b/wfobj-view.cc
index e4fa19a..ace16ec 100644
--- a/wfobj-view.cc
+++ b/wfobj-view.cc
@@ -22,6 +22,7 @@ private:
     void initgl();
     void display();
     void setProjection();
+    void renderMaterial(const WFObj::Material & m);
 
     WFObj m_obj;
     GLuint m_list;
@@ -127,6 +128,15 @@ void Viewer::display()
         glTexCoordPointer(2, GL_FLOAT, stride,
                 (GLvoid *) m_obj.getTextureCoordOffset());
     }
+    for (map<string, WFObj::Material>::iterator it = m_obj.getMaterials().begin();
+            it != m_obj.getMaterials().end();
+            it++)
+    {
+        renderMaterial(it->second);
+        glDrawElements(GL_TRIANGLES, it->second.num_vertices,
+                GL_UNSIGNED_SHORT,
+                (GLvoid *) (sizeof(GLushort) * it->second.first_vertex));
+    }
     SDL_GL_SwapBuffers();
 }
 
@@ -195,3 +205,19 @@ void Viewer::run()
         }
     }
 }
+
+void Viewer::renderMaterial(const WFObj::Material & m)
+{
+    if (m.flags & WFObj::Material::SHININESS_BIT)
+        glMaterialf(GL_FRONT, GL_SHININESS, m.shininess);
+    if (m.flags & WFObj::Material::AMBIENT_BIT)
+        glMaterialfv(GL_FRONT, GL_AMBIENT, &m.ambient[0]);
+    if (m.flags & WFObj::Material::DIFFUSE_BIT)
+        glMaterialfv(GL_FRONT, GL_DIFFUSE, &m.diffuse[0]);
+    if (m.flags & WFObj::Material::SPECULAR_BIT)
+        glMaterialfv(GL_FRONT, GL_SPECULAR, &m.specular[0]);
+    if (m.flags & WFObj::Material::TEXTURE_BIT)
+    {
+        cerr << "error: textured materials not implemented yet" << endl;
+    }
+}