made the exhibit ui slightly more visible

diff --git a/src/ui_exhibit.cc b/src/ui_exhibit.cc
index 438a52e..02ce049 100644 (file)
--- a/src/ui_exhibit.cc
+++ b/src/ui_exhibit.cc
@@ -213,7 +213,6 @@ void exui_draw()
 
        // render the 2D UI in a texture
        push_render_target(rtarg);
-       glClearColor(0, 1, 0, 0);
        glClear(GL_COLOR_BUFFER_BIT);
        draw_2d_ui();
        pop_render_target();
@@ -244,7 +243,8 @@ void exui_draw()
 
        glPushAttrib(GL_ENABLE_BIT);
        glEnable(GL_BLEND);
-       glBlendFunc(GL_SRC_ALPHA, GL_ONE);
+       glBlendColor(0, 0, 0, 0.35);
+       glBlendFunc(GL_SRC_ALPHA, GL_CONSTANT_ALPHA);
        glEnable(GL_TEXTURE_2D);
        glDisable(GL_CULL_FACE);
        glDepthMask(0);