added setteable alpha's and frame pointers

1 files changed, 28 insertions, 1 deletions

diff --git a/Smoke/divergence.c b/Smoke/divergence.c
index 05fe29e..516aa8d 100644
--- a/Smoke/divergence.c
+++ b/Smoke/divergence.c
@@ -4,6 +4,8 @@
 #endif
 
 
+#include <rfftw.h>
+
 #include "funcs.h"
 #include "palette.h"
 
@@ -16,6 +18,11 @@ static int divergence_num_colors = PALETTE_MAXCOLORS;
 
 static int divergence_colormap = PALETTE_BLACKWHITE;
 
+static int divergence_alpha = 1.0f;
+
+static fftw_real *divergence_frame;
+
+
 
 void divergence_set_render(int render_divergence)
 {
@@ -47,13 +54,33 @@ int divergence_get_colormap(void)
   return divergence_colormap;
 }
 
+void divergence_set_alpha(int alpha)
+{
+  divergence_alpha = alpha;
+}
+
+int divergence_get_alpha(void)
+{
+  return divergence_alpha;
+}
+
+void divergence_set_frame(fftw_real *frame)
+{
+  divergence_frame = frame;
+}
+
+fftw_real *divergence_get_frame(void)
+{
+  return divergence_frame;
+}
+
 
 struct color4f divergence_get_color(float value)
 {
   struct color4f return_value;
 
   return_value = set_palette(divergence_colormap, value, divergence_num_colors);
-  return_value.a = 1.0f;
+  return_value.a = divergence_alpha;
 
   return return_value;
 }