Index: configure
===================================================================
--- configure	(revision 234)
+++ configure	(revision 235)
@@ -61,7 +61,7 @@
 {
 echo "ODE Auto local installation ..."
 if [ -d "ode" ]; then
-    echo "ODE (partial ?) install detected, abort (ode/)"
+    echo "ODE (partial ?) install detected, abort (ode/). Try removing --ode-install or ode/ directory."
     exit 1
 fi
 
@@ -125,7 +125,7 @@
 {
 echo "PHP4 Auto local installation ..."
 if [ -d "php" ]; then
-    echo "PHP (partial ?) install detected, abort (php/)"
+    echo "PHP (partial ?) install detected, abort (php/). Try removing --instal-php or php/ directory."
     exit 1
 fi
 
__rayapi void raydium_viewport_enable(char * name);
+/**
+Direct all render operations to dedicated viewport.
+Advanced camera feature as sound/rumble are desactivated during viewport render.
+**/ 
+
+__rayapi void raydium_viewport_save(void);
+/**
+Copy viewport rendering to texture buffer.
+Render operations return to normal state, with normal camera behavior.
+**/
+
+__rayapi void raydium_viewport_define(GLfloat px, GLfloat py, GLfloat sizex, GLfloat sizey);
+/**
+Define viewport size for current rendering.
+Use of ## raydium_viewport_define## desable all sound/rumble function of the camera
+This function are reserved for the main camera of the scene.
+**/
+
+__rayapi void raydium_viewport_draw(char * name, GLfloat tx,GLfloat ty,GLfloat sx,GLfloat sy);
+/**
+Draw contents of ##name## viewport to screen
+##tx##,##ty## are lower left corner in screen percents.
+##sx##,##sy## are size in screen percents.
+**/
 #endif
+
+
+
+