Fix draw3dTriangle to render proper 3d objects, not just lines. In order to...

Fix draw3dTriangle to render proper 3d objects, not just lines. In order to recover the previous behavior, set the 3d material to wireframe.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@2723 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CNullDriver.cpp

@@ -625,7 +625,6 @@ void CNullDriver::drawIndexedTriangleFan(const S3DVertex2TCoords* vertices,
 }
 
 
-
 //! Draws an indexed triangle fan.
 void CNullDriver::drawIndexedTriangleFan(const S3DVertexTangents* vertices,
 	u32 vertexCount, const u16* indexList, u32 triangleCount)
@@ -634,7 +633,6 @@ void CNullDriver::drawIndexedTriangleFan(const S3DVertexTangents* vertices,
 }
 
 
-
 //! Draws a 3d line.
 void CNullDriver::draw3DLine(const core::vector3df& start,
 				const core::vector3df& end, SColor color)
@@ -642,17 +640,27 @@ void CNullDriver::draw3DLine(const core::vector3df& start,
 }
 
 
-
 //! Draws a 3d triangle.
 void CNullDriver::draw3DTriangle(const core::triangle3df& triangle, SColor color)
 {
-	draw3DLine(triangle.pointA, triangle.pointB, color);
-	draw3DLine(triangle.pointB, triangle.pointC, color);
-	draw3DLine(triangle.pointC, triangle.pointA, color);
+	S3DVertex vertices[3];
+	vertices[0].Pos=triangle.pointA;
+	vertices[0].Color=color;
+	vertices[0].Normal=triangle.getNormal().normalize();
+	vertices[0].TCoords.set(0.f,0.f);
+	vertices[1].Pos=triangle.pointB;
+	vertices[1].Color=color;
+	vertices[1].Normal=vertices[0].Normal;
+	vertices[1].TCoords.set(0.5f,1.f);
+	vertices[2].Pos=triangle.pointC;
+	vertices[2].Color=color;
+	vertices[2].Normal=vertices[0].Normal;
+	vertices[2].TCoords.set(1.f,0.f);
+	const u16 indexList[] = {0,1,2};
+	drawVertexPrimitiveList(vertices, 3, indexList, 1, EVT_STANDARD, scene::EPT_TRIANGLES, EIT_16BIT);
 }
 
 
-
 //! Draws a 3d axis aligned box.
 void CNullDriver::draw3DBox(const core::aabbox3d<f32>& box, SColor color)
 {