custom blend funcs

Author: flipcoder

Qor/Pipeline.cpp

@@ -353,8 +353,12 @@ void Pipeline :: render(
         // set up multi-pass state
         if(not has_lights){
             if(m_bBlend) {
-                glEnable(GL_BLEND);
-                glBlendFunc(GL_SRC_ALPHA, GL_ONE);
+                if(m_BlendFunc)
+                    m_BlendFunc();
+                else{
+                    glEnable(GL_BLEND);
+                    glBlendFunc(GL_SRC_ALPHA, GL_ONE);
+                }
                 //glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
             }else{
                 //glDisable(GL_BLEND);

Qor/Pipeline.h

@@ -145,6 +145,11 @@ class Pipeline:
             auto l = this->lock();
             m_bBlend = b;
         }
+        void blend(std::function<void()> func) {
+            auto l = this->lock();
+            m_bBlend = true;
+            m_BlendFunc = func;
+        }
 
         void backfaces(bool b);
 
@@ -220,6 +225,8 @@ class Pipeline:
 
         const static std::vector<std::string> s_TextureUniformNames;
         const static std::vector<std::string> s_AttributeNames;
+
+        std::function<void()> m_BlendFunc;
 };
 
 #endif