Fix some unnecessary memory allocation slowness in cycles mesh export.

2 files changed, 13 insertions, 0 deletions

diff --git a/intern/cycles/render/mesh.cpp b/intern/cycles/render/mesh.cpp
index 4a2a64bb0f3..77d4a5fe7d2 100644
--- a/intern/cycles/render/mesh.cpp
+++ b/intern/cycles/render/mesh.cpp
@@ -98,6 +98,18 @@ void Mesh::clear()
 	transform_normal = transform_identity();
 }
 
+void Mesh::set_triangle(int i, int v0, int v1, int v2, int shader_, bool smooth_)
+{
+	Triangle tri;
+	tri.v[0] = v0;
+	tri.v[1] = v1;
+	tri.v[2] = v2;
+
+	triangles[i] = tri;
+	shader[i] = shader_;
+	smooth[i] = smooth_;
+}
+
 void Mesh::add_triangle(int v0, int v1, int v2, int shader_, bool smooth_)
 {
 	Triangle tri;
diff --git a/intern/cycles/render/mesh.h b/intern/cycles/render/mesh.h
index b74c41f6453..a7703f7cabc 100644
--- a/intern/cycles/render/mesh.h
+++ b/intern/cycles/render/mesh.h
@@ -110,6 +110,7 @@ public:
 
 	void reserve(int numverts, int numfaces, int numcurves, int numcurvekeys);
 	void clear();
+	void set_triangle(int i, int v0, int v1, int v2, int shader, bool smooth);
 	void add_triangle(int v0, int v1, int v2, int shader, bool smooth);
 	void add_curve_key(float3 loc, float radius);
 	void add_curve(int first_key, int num_keys, int shader);