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+++ b/deploy/data/skybox/radiance/output_pmrem_posx_2_64x64.tga
@@ -0,0 +1,3 @@
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diff --git a/deploy/data/skybox/radiance/output_pmrem_posx_3_32x32.tga b/deploy/data/skybox/radiance/output_pmrem_posx_3_32x32.tga
new file mode 100644
index 0000000..461cc00
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posx_3_32x32.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 3116
diff --git a/deploy/data/skybox/radiance/output_pmrem_posx_4_16x16.tga b/deploy/data/skybox/radiance/output_pmrem_posx_4_16x16.tga
new file mode 100644
index 0000000..db6e89d
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posx_4_16x16.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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diff --git a/deploy/data/skybox/radiance/output_pmrem_posx_5_8x8.tga b/deploy/data/skybox/radiance/output_pmrem_posx_5_8x8.tga
new file mode 100644
index 0000000..6205fe1
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posx_5_8x8.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 236
diff --git a/deploy/data/skybox/radiance/output_pmrem_posx_6_4x4.tga b/deploy/data/skybox/radiance/output_pmrem_posx_6_4x4.tga
new file mode 100644
index 0000000..ae7a1eb
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posx_6_4x4.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 92
diff --git a/deploy/data/skybox/radiance/output_pmrem_posy_0_256x256.tga b/deploy/data/skybox/radiance/output_pmrem_posy_0_256x256.tga
new file mode 100644
index 0000000..51b4a61
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posy_0_256x256.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 196652
diff --git a/deploy/data/skybox/radiance/output_pmrem_posy_1_128x128.tga b/deploy/data/skybox/radiance/output_pmrem_posy_1_128x128.tga
new file mode 100644
index 0000000..4074cbb
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posy_1_128x128.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 49196
diff --git a/deploy/data/skybox/radiance/output_pmrem_posy_2_64x64.tga b/deploy/data/skybox/radiance/output_pmrem_posy_2_64x64.tga
new file mode 100644
index 0000000..c76b178
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posy_2_64x64.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 12332
diff --git a/deploy/data/skybox/radiance/output_pmrem_posy_3_32x32.tga b/deploy/data/skybox/radiance/output_pmrem_posy_3_32x32.tga
new file mode 100644
index 0000000..5f5972c
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posy_3_32x32.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 3116
diff --git a/deploy/data/skybox/radiance/output_pmrem_posy_4_16x16.tga b/deploy/data/skybox/radiance/output_pmrem_posy_4_16x16.tga
new file mode 100644
index 0000000..ab82d2e
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posy_4_16x16.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bb236d64b7e41e297e6b5553c9660fcee9eaf6dde03da8f642102dff163b7cf0
+size 812
diff --git a/deploy/data/skybox/radiance/output_pmrem_posy_5_8x8.tga b/deploy/data/skybox/radiance/output_pmrem_posy_5_8x8.tga
new file mode 100644
index 0000000..7070c7f
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posy_5_8x8.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 236
diff --git a/deploy/data/skybox/radiance/output_pmrem_posy_6_4x4.tga b/deploy/data/skybox/radiance/output_pmrem_posy_6_4x4.tga
new file mode 100644
index 0000000..81b6fb0
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posy_6_4x4.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 92
diff --git a/deploy/data/skybox/radiance/output_pmrem_posz_0_256x256.tga b/deploy/data/skybox/radiance/output_pmrem_posz_0_256x256.tga
new file mode 100644
index 0000000..b93407a
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posz_0_256x256.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:10d29620fed7c07a8106501d3079f917e64b66447850f3f3d89069f9e0a4be72
+size 196652
diff --git a/deploy/data/skybox/radiance/output_pmrem_posz_1_128x128.tga b/deploy/data/skybox/radiance/output_pmrem_posz_1_128x128.tga
new file mode 100644
index 0000000..48a81fc
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posz_1_128x128.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:28b757b41ad55e7b008e599832063c3e206f14b3d1cd10c3c1e531ef08b03f54
+size 49196
diff --git a/deploy/data/skybox/radiance/output_pmrem_posz_2_64x64.tga b/deploy/data/skybox/radiance/output_pmrem_posz_2_64x64.tga
new file mode 100644
index 0000000..95ba362
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posz_2_64x64.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 12332
diff --git a/deploy/data/skybox/radiance/output_pmrem_posz_3_32x32.tga b/deploy/data/skybox/radiance/output_pmrem_posz_3_32x32.tga
new file mode 100644
index 0000000..01a4eef
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posz_3_32x32.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 3116
diff --git a/deploy/data/skybox/radiance/output_pmrem_posz_4_16x16.tga b/deploy/data/skybox/radiance/output_pmrem_posz_4_16x16.tga
new file mode 100644
index 0000000..6ddfa87
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posz_4_16x16.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 812
diff --git a/deploy/data/skybox/radiance/output_pmrem_posz_5_8x8.tga b/deploy/data/skybox/radiance/output_pmrem_posz_5_8x8.tga
new file mode 100644
index 0000000..8f4b803
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posz_5_8x8.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 236
diff --git a/deploy/data/skybox/radiance/output_pmrem_posz_6_4x4.tga b/deploy/data/skybox/radiance/output_pmrem_posz_6_4x4.tga
new file mode 100644
index 0000000..d64d8c6
--- /dev/null
+++ b/deploy/data/skybox/radiance/output_pmrem_posz_6_4x4.tga
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 92
diff --git a/deploy/data/skybox/skybox.xcf b/deploy/data/skybox/skybox.xcf
new file mode 100644
index 0000000..234c122
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diff --git a/deploy/data/slipperystonework_albedo.png b/deploy/data/slipperystonework_albedo.png
new file mode 100644
index 0000000..25807b0
--- /dev/null
+++ b/deploy/data/slipperystonework_albedo.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:162ceea8b3cc087aa4bcb25db70a88b433649e6e8a7f491ba50cc2581585bf47
+size 7314341
diff --git a/deploy/data/slipperystonework_metallic.png b/deploy/data/slipperystonework_metallic.png
new file mode 100644
index 0000000..fa88b15
--- /dev/null
+++ b/deploy/data/slipperystonework_metallic.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:16ab4394f49880fe64b2a6405592a0325367f184d4829d8219612aef91c05f18
+size 15009
diff --git a/deploy/data/slipperystonework_normal.png b/deploy/data/slipperystonework_normal.png
new file mode 100644
index 0000000..c88630f
--- /dev/null
+++ b/deploy/data/slipperystonework_normal.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ce7fa8504ccc7ef77e9dcb16bd1e1043797de43783dfbe472bf52ffb6e65da56
+size 7533234
diff --git a/deploy/data/slipperystonework_roughness.png b/deploy/data/slipperystonework_roughness.png
new file mode 100644
index 0000000..6bd8a2c
--- /dev/null
+++ b/deploy/data/slipperystonework_roughness.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 4799103
diff --git a/deploy/data/steel.jpg b/deploy/data/steel.jpg
deleted file mode 100644
index d57cafc..0000000
--- a/deploy/data/steel.jpg
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:40ba8f1ef59a9cfda99149b0aca367e9211f130da99a9fdfc547cedfa1a4bcb4
-size 6474
diff --git a/deploy/data/streakedmetal_albedo.png b/deploy/data/streakedmetal_albedo.png
new file mode 100644
index 0000000..2cecab1
--- /dev/null
+++ b/deploy/data/streakedmetal_albedo.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4c21a445fb923a8c0afe279135470f1da0290dd43b4f0ebcdcad458374fcb536
+size 1335112
diff --git a/deploy/data/streakedmetal_metallic.png b/deploy/data/streakedmetal_metallic.png
new file mode 100644
index 0000000..fb50e22
--- /dev/null
+++ b/deploy/data/streakedmetal_metallic.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:07f3c88595d842cf1cd40d4c9bebb4e82e97ae850d9a80500d4fd56a785e902b
+size 19626
diff --git a/deploy/data/streakedmetal_roughness.png b/deploy/data/streakedmetal_roughness.png
new file mode 100644
index 0000000..a1bd67c
--- /dev/null
+++ b/deploy/data/streakedmetal_roughness.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5c7f0e3e6fc1725c71257cf4192792ef03c79d98cf0fa515189dadb04bb785cd
+size 2982336
diff --git a/deploy/data/sword.mtl b/deploy/data/sword.mtl
index 88e8262..c2fa908 100644
--- a/deploy/data/sword.mtl
+++ b/deploy/data/sword.mtl
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:21173927cb0e81a2acbc0e4e8382293c08d8e633f47caa3ce76f870b56b6d561
-size 129
+oid sha256:076919d060d12a120970903fea60f4ee9979602fd7eb705b1e9d4bc78024a583
+size 227
diff --git a/deploy/data/woodframe_albedo.png b/deploy/data/woodframe_albedo.png
new file mode 100644
index 0000000..b4d73c6
--- /dev/null
+++ b/deploy/data/woodframe_albedo.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6bad25466e6184902ee2c2ec7d47f8ae112943d3c92fca387a5b41da0b42a2a5
+size 6976127
diff --git a/deploy/data/woodframe_metallic.png b/deploy/data/woodframe_metallic.png
new file mode 100644
index 0000000..68da9ea
--- /dev/null
+++ b/deploy/data/woodframe_metallic.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:289e65cf6fa41d6c00a62cde57ffb20dbe5f1de6b3e6a3ef4d8a7de8f41524bd
+size 15007
diff --git a/deploy/data/woodframe_normal.png b/deploy/data/woodframe_normal.png
new file mode 100644
index 0000000..984fed4
--- /dev/null
+++ b/deploy/data/woodframe_normal.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:25c6e56846639f176e8d9ef756b5df8329cba6cd0117812dc79dfa2892ccf560
+size 6869334
diff --git a/deploy/data/woodframe_roughness.png b/deploy/data/woodframe_roughness.png
new file mode 100644
index 0000000..532fb92
--- /dev/null
+++ b/deploy/data/woodframe_roughness.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f714f443197a22e6f7148004b344f0081f9c7667b85429472d38b9190af43d79
+size 1822076
diff --git a/src/guitools.cpp b/src/guitools.cpp
index 5a95aae..3fd8d50 100644
--- a/src/guitools.cpp
+++ b/src/guitools.cpp
@@ -8,6 +8,7 @@
 
 #include <SparrowRenderer/mesh.h>
 #include <SparrowRenderer/pbrmaterial.h>
+#include <SparrowRenderer/deferredpipeline.h>
 
 #include <glm/ext.hpp>
 
@@ -48,7 +49,7 @@ void GuiTools::materialGui()
     options += "None\n";
     meshes.push_back(nullptr);
     int i = 1;
-    for(SceneIterator<GeometryNode*>* geometryIt = getEngine().getScene()->getGeometry(); geometryIt->isValid(); geometryIt->next())
+    for(SceneIterator<GeometryNode*>* geometryIt = m_scene->getGeometry(); geometryIt->isValid(); geometryIt->next())
     {
         options += geometryIt->getItem()->mesh->getName();
         options += '\n';
@@ -91,3 +92,9 @@ void GuiTools::toggleMaterialEditor()
 {
     m_materialEditorEnabled = !m_materialEditorEnabled;
 }
+
+void GuiTools::toggleRenderingPipelineGui()
+{
+    DeferredPipeline* pipeline = dynamic_cast<DeferredPipeline*>(m_scene->getPipeline());
+    pipeline->toggleDebugGui();
+}
diff --git a/src/guitools.h b/src/guitools.h
index 685175a..ded58ef 100644
--- a/src/guitools.h
+++ b/src/guitools.h
@@ -20,6 +20,7 @@ public:
     void materialGui();
     void togglePicker();
     void toggleMaterialEditor();
+    void toggleRenderingPipelineGui();
 };
 
 #endif // GUITOOLS_H
diff --git a/src/sparrowshell/scriptnode.cpp b/src/sparrowshell/scriptnode.cpp
index 74ba8d7..9214b24 100644
--- a/src/sparrowshell/scriptnode.cpp
+++ b/src/sparrowshell/scriptnode.cpp
@@ -21,7 +21,7 @@ ScriptNode::ScriptNode()
     LUA_SET_FUN(clear);
     LUA_SET_FUN(picker);
     LUA_SET_FUN(materialEditor);
-//    m_script["engine"] = getEngine();
+    LUA_SET_FUN(rendering);
 
     m_script.new_usertype<Engine>("Engine",
                                   "time",&Engine::getTime
@@ -99,3 +99,7 @@ void ScriptNode::picker(){
 void ScriptNode::materialEditor(){
     this->getEngine().getGuiTools()->toggleMaterialEditor();
 }
+
+void ScriptNode::rendering(){
+    this->getEngine().getGuiTools()->toggleRenderingPipelineGui();
+}
diff --git a/src/sparrowshell/scriptnode.h b/src/sparrowshell/scriptnode.h
index 2410cba..1f1d48b 100644
--- a/src/sparrowshell/scriptnode.h
+++ b/src/sparrowshell/scriptnode.h
@@ -24,7 +24,7 @@ public:
     void testfunc(int, float,float,float);
     void picker();
     void materialEditor();
-
+    void rendering();
 };
 
 #endif // SCRIPTNODE_H
diff --git a/src/test/main.cpp b/src/test/main.cpp
index 49854ca..69eaa16 100644
--- a/src/test/main.cpp
+++ b/src/test/main.cpp
@@ -90,6 +90,8 @@ void generateTerrain(SceneTree *scene, btDiscreteDynamicsWorld *world)
     TestGen gen;
     PBRMaterial *mat = new PBRMaterial();
     mat->albedo = glm::vec3(0.1f, 0.4f, 0.2f);
+    mat->metallic = 0.2f;
+    mat->roughness = 0.95f;
 
     for(int x=-3; x<3; ++x)
     for(int y=-2; y<2; ++y)
@@ -202,8 +204,8 @@ public:
         scene->getRootObject()->addChild(potator);
 
         //lighting
-        Texture* skyboxTexture = RESOURCE_GET(Texture, "skybox");
-        Texture* ambientTexture = RESOURCE_GET(Texture, "ambient");
+        Texture* skyboxTexture = RESOURCE_GET(Texture, "radiance");
+        Texture* ambientTexture = RESOURCE_GET(Texture, "irradiance");
         LightNode *ambientLight = new LightNode(new AmbientLight(ambientTexture, skyboxTexture));
 
         DeferredPipeline* pipeline = dynamic_cast<DeferredPipeline*>(scene->getPipeline());
@@ -322,14 +324,33 @@ int main(){
     AmbientLight::setBrdfLut(new Texture(img, false));
     delete img;
     Image * imgs[6];
-    imgs[0] = Loader::loadImage("skybox/craterlake_rt.tga", 24, false); // right
-    imgs[1] = Loader::loadImage("skybox/craterlake_lf.tga", 24, false); // left
-    imgs[2] = Loader::loadImage("skybox/craterlake_up.tga", 24, false); // top
-    imgs[3] = Loader::loadImage("skybox/craterlake_dn.tga", 24, false); // bottom
-    imgs[4] = Loader::loadImage("skybox/craterlake_ft.tga", 24, false); // front
-    imgs[5] = Loader::loadImage("skybox/craterlake_bk.tga", 24, false); // back
+    imgs[0] = Loader::loadImage("skybox/posx.jpg", 24, false); // right
+    imgs[1] = Loader::loadImage("skybox/negx.jpg", 24, false); // left
+    imgs[2] = Loader::loadImage("skybox/posy.jpg", 24, false); // top
+    imgs[3] = Loader::loadImage("skybox/negy.jpg", 24, false); // bottom
+    imgs[4] = Loader::loadImage("skybox/posz.jpg", 24, false); // front
+    imgs[5] = Loader::loadImage("skybox/negz.jpg", 24, false); // back
     RESOURCE_ADD(new Texture(imgs), Texture, "skybox");
-    RESOURCE_ADD(new Texture(imgs), Texture, "ambient");
+    for(int i=0; i<6; ++i)
+        delete imgs[i];
+
+    imgs[0] = Loader::loadImage("skybox/irradiance/output_iem_posx.tga", 24, false); // right
+    imgs[1] = Loader::loadImage("skybox/irradiance/output_iem_negx.tga", 24, false); // left
+    imgs[2] = Loader::loadImage("skybox/irradiance/output_iem_posy.tga", 24, false); // top
+    imgs[3] = Loader::loadImage("skybox/irradiance/output_iem_negy.tga", 24, false); // bottom
+    imgs[4] = Loader::loadImage("skybox/irradiance/output_iem_posz.tga", 24, false); // front
+    imgs[5] = Loader::loadImage("skybox/irradiance/output_iem_negz.tga", 24, false); // back
+    RESOURCE_ADD(new Texture(imgs, false), Texture, "irradiance");
+    for(int i=0; i<6; ++i)
+        delete imgs[i];
+
+    imgs[0] = Loader::loadImage("skybox/radiance/output_pmrem_posx_0_256x256.tga", 24, false); // right
+    imgs[1] = Loader::loadImage("skybox/radiance/output_pmrem_negx_0_256x256.tga", 24, false); // left
+    imgs[2] = Loader::loadImage("skybox/radiance/output_pmrem_posy_0_256x256.tga", 24, false); // top
+    imgs[3] = Loader::loadImage("skybox/radiance/output_pmrem_negy_0_256x256.tga", 24, false); // bottom
+    imgs[4] = Loader::loadImage("skybox/radiance/output_pmrem_posz_0_256x256.tga", 24, false); // front
+    imgs[5] = Loader::loadImage("skybox/radiance/output_pmrem_negz_0_256x256.tga", 24, false); // back
+    RESOURCE_ADD(new Texture(imgs), Texture, "radiance");
     for(int i=0; i<6; ++i)
         delete imgs[i];
 
diff --git a/src/test/potator.cpp b/src/test/potator.cpp
index 965463e..40efa6f 100644
--- a/src/test/potator.cpp
+++ b/src/test/potator.cpp
@@ -66,14 +66,18 @@ Potator::Potator(PlayerCharacterNode * player,
         m_cubeMesh->addTriangle(id+7, id+5, id+6);
     }
 
-    Image* wood = Loader::loadImage("woodbox.jpg", 24);
     PBRMaterial *mat = new PBRMaterial();
-    mat->setTexture(PBRMaterial::ALBEDO_SLOT, new Texture(wood), "wood_texture");
-    mat->roughness = 0.8f;
-    mat->metallic = 0.1f;
+    Image* img = Loader::loadImage("woodframe_albedo.png", 24);
+    mat->setTexture(PBRMaterial::ALBEDO_SLOT, new Texture(img));
+    img = Loader::loadImage("woodframe_metallic.png", 8);
+    mat->setTexture(PBRMaterial::METALLIC_SLOT, new Texture(img));
+    img = Loader::loadImage("woodframe_roughness.png", 8);
+    mat->setTexture(PBRMaterial::ROUGHNESS_SLOT, new Texture(img));
+    img = Loader::loadImage("woodframe_normal.png", 24);
+    mat->setTexture(PBRMaterial::NORMALS_SLOT, new Texture(img));
 
     m_cubeMesh->setMaterial(mat);
-
+    m_cubeMesh->computeTangents();
     m_cubeMesh->initGL();
 
     btVector3 halfExtents(s.x+PHYSICS_OFFSET, s.y+PHYSICS_OFFSET, s.z+PHYSICS_OFFSET);
@@ -83,13 +87,19 @@ Potator::Potator(PlayerCharacterNode * player,
 
     // creating sphere
     mat = new PBRMaterial();
-    mat->albedo = glm::vec3(0.1f);
-    mat->roughness = 0.1f;
-    mat->metallic = 0.9f;
+    img = Loader::loadImage("slipperystonework_albedo.png", 24);
+    mat->setTexture(PBRMaterial::ALBEDO_SLOT, new Texture(img));
+    img = Loader::loadImage("slipperystonework_metallic.png", 8);
+    mat->setTexture(PBRMaterial::METALLIC_SLOT, new Texture(img));
+    img = Loader::loadImage("slipperystonework_roughness.png", 8);
+    mat->setTexture(PBRMaterial::ROUGHNESS_SLOT, new Texture(img));
+    img = Loader::loadImage("slipperystonework_normal.png", 24);
+    mat->setTexture(PBRMaterial::NORMALS_SLOT, new Texture(img));
 
     SphereGenerator sphereGen;
-    m_sphereMesh = sphereGen.generateGeodesicMesh(mat, 2, sphereRadius);
+    m_sphereMesh = sphereGen.generateParametricMesh(mat, 20, 20, sphereRadius);
     m_sphereMesh->computeNormals();
+    m_sphereMesh->computeTangents();
     m_sphereMesh->mergeVertices();
     m_sphereMesh->initGL();