1 files changed, 20 insertions, 0 deletions
diff --git a/gst/goom/v3d.c b/gst/goom/v3d.c
new file mode 100644
index 00000000..54e3c97d
--- /dev/null
+++ b/gst/goom/v3d.c
@@ -0,0 +1,20 @@
+#include "v3d.h"
+
+void
+v3d_to_v2d (v3d * v3, int nbvertex, int width, int height, float distance,
+    v2d * v2)
+{
+  int i;
+
+  for (i = 0; i < nbvertex; ++i) {
+    if (v3[i].z > 2) {
+      int Xp, Yp;
+
+      F2I ((distance * v3[i].x / v3[i].z), Xp);
+      F2I ((distance * v3[i].y / v3[i].z), Yp);
+      v2[i].x = Xp + (width >> 1);
+      v2[i].y = -Yp + (height >> 1);
+    } else
+      v2[i].x = v2[i].y = -666;
+  }
+}