X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fvertexbuilder.h;h=55f914a31a24b7400b7efbe9b786d32940fa882c;hb=a40fc85277dba5c34402a0e703d038efd30cc57b;hp=998f7a6cea4d001c20d41f3529c72aac4ccc8763;hpb=2b779717e42b514210f7128cf9aee2276650e003;p=libs%2Fgl.git

diff --git a/source/vertexbuilder.h b/source/vertexbuilder.h
index 998f7a6c..55f914a3 100644
--- a/source/vertexbuilder.h
+++ b/source/vertexbuilder.h
@@ -21,8 +21,20 @@ data.  Attributes can be read from protected member variables.
 */
 class VertexBuilder
 {
+public:
+	class PushMatrix
+	{
+	private:
+		VertexBuilder &bld;
+		Matrix mtx;
+
+	public:
+		PushMatrix(VertexBuilder &b): bld(b), mtx(bld.mtx) { }
+		~PushMatrix() { bld.mtx = mtx; }
+	};
+
 protected:
-	MatrixStack mtx;
+	Matrix mtx;
 	Vector3 nor;
 	Color col;
 	std::map<unsigned, Vector4> texc;
@@ -33,7 +45,13 @@ public:
 
 	virtual ~VertexBuilder() { }
 
-	MatrixStack &matrix()
+	void set_matrix(const Matrix &m)
+	{ mtx = m; }
+
+	void transform(const Matrix &m)
+	{ mtx *= m; }
+
+	const Matrix &get_matrix() const
 	{ return mtx; }
 
 	void vertex(float x, float y)
@@ -49,7 +67,7 @@ public:
 	{ vertex(Vector4(v.x, v.y, v.z, 1)); }
 
 	void vertex(const Vector4 &v)
-	{ vertex_(mtx.top()*v); }
+	{ vertex_(mtx*v); }
 
 protected:
 	virtual void vertex_(const Vector4 &) = 0;
@@ -60,7 +78,7 @@ public:
 
 	void normal(const Vector3 &n)
 	{
-		Vector4 tn = mtx.top()*Vector4(n.x, n.y, n.z, 0);
+		Vector4 tn = mtx*Vector4(n.x, n.y, n.z, 0);
 		nor = Vector3(tn.x, tn.y, tn.z);
 	}
 
@@ -69,7 +87,7 @@ public:
 
 	void tangent(const Vector3 &t)
 	{
-		Vector4 tt = mtx.top()*Vector4(t.x, t.y, t.z, 0);
+		Vector4 tt = mtx*Vector4(t.x, t.y, t.z, 0);
 		attrib(get_component_type(TANGENT3), tt);
 	}
 
@@ -78,7 +96,7 @@ public:
 
 	void binormal(const Vector3 &b)
 	{
-		Vector4 tb = mtx.top()*Vector4(b.x, b.y, b.z, 0);
+		Vector4 tb = mtx*Vector4(b.x, b.y, b.z, 0);
 		attrib(get_component_type(BINORMAL3), tb);
 	}