clear new layers

engine/app.cpp

@@ -641,7 +641,7 @@ bool App::mouse_scroll(float x, float y, float delta)
     MouseEvent e;
     e.m_type = kEventType::MouseScroll;
     e.m_pos = { x / zoom, y / zoom };
-    e.m_scroll_delta = delta;
+    e.m_scroll_delta = delta * 0.1f;
     auto ret = layout[main_id]->on_event(&e);
     layout[main_id]->update();
     return ret == kEventResult::Consumed;

engine/brush.h

@@ -81,6 +81,9 @@ public:
     bool create(int width, int height, std::string name)
     {
         m_rtt.create(width, height);
+        m_rtt.bindFramebuffer();
+        m_rtt.clear();
+        m_rtt.unbindFramebuffer();
         return true;
     }
 };

engine/canvas.cpp

@@ -229,7 +229,7 @@ void ui::Canvas::resize(int width, int height)
     m_tex2.create(width, height);
     for (auto& l : m_layers)
     {
-        l.m_rtt.create(width, height);
+        l.create(width, height, "");
     }
 }
 bool ui::Canvas::create(int width, int height)

engine/layout.h

@@ -1769,9 +1769,6 @@ public:
             glGetIntegerv(GL_VIEWPORT, vp);
             glGetFloatv(GL_COLOR_CLEAR_VALUE, cc);
 
-            double w = (double)m_rtt.getWidth();
-            double h = (double)m_rtt.getHeight();
-
             glClearColor(1, 1, 1, 1);
             glClear(GL_COLOR_BUFFER_BIT);
             glViewport(0, 0, m_rtt.getWidth(), m_rtt.getHeight());