diff -r bbb901b97404 -r 90443fb328ea src/gl/partrenderer.cpp
--- a/src/gl/partrenderer.cpp	Fri Jan 31 00:25:35 2020 +0200
+++ b/src/gl/partrenderer.cpp	Sat Feb 01 15:33:57 2020 +0200
@@ -103,26 +103,49 @@
 	glClearColor(0.8f, 0.8f, 0.8f, 1.0f);
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 	glEnable(GL_DEPTH_TEST);
-	glEnable(GL_LIGHTING);
 	glEnable(GL_POLYGON_OFFSET_FILL);
 	glPolygonOffset(1.0f, 1.0f);
 	switch (this->renderStyle)
 	{
 	case gl::RenderStyle::Normal:
+		this->setFragmentStyle(gl::FragmentStyle::Normal);
+		this->renderAllArrays();
+		break;
 	case gl::RenderStyle::BfcRedGreen:
+		glEnable(GL_CULL_FACE);
+		glCullFace(GL_BACK);
+		this->setFragmentStyle(gl::FragmentStyle::BfcGreen);
+		renderVao(gl::ArrayClass::Triangles);
+		renderVao(gl::ArrayClass::Quads);
+		glCullFace(GL_FRONT);
+		this->setFragmentStyle(gl::FragmentStyle::BfcRed);
+		renderVao(gl::ArrayClass::Triangles);
+		renderVao(gl::ArrayClass::Quads);
+		glDisable(GL_CULL_FACE);
+		this->setFragmentStyle(gl::FragmentStyle::Normal);
+		renderVao(gl::ArrayClass::Lines);
 	case gl::RenderStyle::RandomColors:
+		this->setFragmentStyle(gl::FragmentStyle::RandomColors);
+		this->renderAllArrays();
 		break;
 	case gl::RenderStyle::Wireframe:
 		glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+		this->setFragmentStyle(gl::FragmentStyle::Normal);
+		this->renderAllArrays();
 		break;
 	}
+	glDisable(GL_POLYGON_OFFSET_FILL);
+}
+
+void PartRenderer::renderAllArrays()
+{
 	// Lines need to be rendered last so that anti-aliasing does not interfere with polygon rendering.
 	renderVao(gl::ArrayClass::Triangles);
 	renderVao(gl::ArrayClass::Quads);
 	renderVao(gl::ArrayClass::Lines);
-	glDisable(GL_POLYGON_OFFSET_FILL);
 }
 
+
 void PartRenderer::updateViewMatrix()
 {
 	// I'm not quite sure why using the exponent function on the zoom factor causes linear zoom behavior
@@ -188,6 +211,19 @@
 	this->update();
 }
 
+/**
+ * @brief Changes the color of rendered fragments
+ * @param newFragmentStyle new fragment style to use
+ */
+void PartRenderer::setFragmentStyle(gl::FragmentStyle newFragmentStyle)
+{
+	this->compiler->setUniform("fragmentStyle", static_cast<int>(newFragmentStyle));
+}
+
+/**
+ * @brief Changes the way the scene is rendered
+ * @param newStyle new render style to use
+ */
 void PartRenderer::setRenderStyle(const gl::RenderStyle newStyle)
 {
 	this->renderStyle = newStyle;