diff --git a/ImGuiVisitor.cpp b/ImGuiVisitor.cpp
index 2f90aa0..173c045 100644
--- a/ImGuiVisitor.cpp
+++ b/ImGuiVisitor.cpp
@@ -171,7 +171,8 @@ void ImGuiVisitor::visit(Shader &n)
 //    ImGui::SameLine(0, 5);
     ImGui::SetNextItemWidth(IMGUI_RIGHT_ALIGN);
     int mode = n.blending;
-    if (ImGui::Combo("Blending", &mode, "Normal\0Screen\0Subtract\0Multiply\0Soft light\0Soft subtract\0Lighten only\0None\0") ) {
+    if (ImGui::Combo("Blending", &mode, "Normal\0Screen\0Subtract\0Multiply\0Soft light"
+                     "\0Hard light\0Soft subtract\0Lighten only\0") ) {
         n.blending = Shader::BlendMode(mode);
 
         std::ostringstream oss;
@@ -189,6 +190,9 @@ void ImGuiVisitor::visit(Shader &n)
         case Shader::BLEND_MULTIPLY:
             oss<<"Multiply";
             break;
+        case Shader::BLEND_HARD_LIGHT:
+            oss<<"Hard light";
+            break;
         case Shader::BLEND_SOFT_LIGHT:
             oss<<"Soft light";
             break;
diff --git a/Shader.cpp b/Shader.cpp
index aac55b0..6362128 100644
--- a/Shader.cpp
+++ b/Shader.cpp
@@ -24,29 +24,32 @@ ShadingProgram *ShadingProgram::currentProgram_ = nullptr;
 ShadingProgram simpleShadingProgram("shaders/simple.vs", "shaders/simple.fs");
 
 // Blending presets for matching with Shader::BlendModes:
-GLenum blending_equation[8] = { GL_FUNC_ADD,  // normal
+GLenum blending_equation[9] = { GL_FUNC_ADD,  // normal
                                 GL_FUNC_ADD,  // screen
                                 GL_FUNC_REVERSE_SUBTRACT, // subtract
                                 GL_FUNC_ADD,  // multiply
                                 GL_FUNC_ADD,  // soft light
+                                GL_FUNC_ADD,  // hard light
                                 GL_FUNC_REVERSE_SUBTRACT, // soft subtract
                                 GL_MAX,       // lighten only
                                 GL_FUNC_ADD};
-GLenum blending_source_function[8] = { GL_ONE,  // normal
+GLenum blending_source_function[9] = { GL_ONE,  // normal
                                        GL_ONE,  // screen
                                        GL_SRC_COLOR,  // subtract (can be GL_ONE)
                                        GL_DST_COLOR,  // multiply : src x dst color
                                        GL_DST_COLOR,  // soft light : src x dst color
+                                       GL_SRC_COLOR,  // hard light : src x src color
                                        GL_DST_COLOR,  // soft subtract
                                        GL_ONE,        //  lighten only
                                        GL_ONE};
-GLenum blending_destination_function[8] = {GL_ONE_MINUS_SRC_ALPHA,// normal
-                                           GL_ONE, // screen
-                                           GL_ONE, // subtract
+GLenum blending_destination_function[9] = {GL_ONE_MINUS_SRC_ALPHA,// normal
+                                           GL_ONE,   // screen
+                                           GL_ONE,   // subtract
                                            GL_ONE_MINUS_SRC_ALPHA, // multiply
-                                           GL_ONE, // soft light
-                                           GL_ONE, // soft subtract
-                                           GL_ONE, // lighten only
+                                           GL_ONE,   // soft light
+                                           GL_ONE,   // hard light
+                                           GL_ONE,   // soft subtract
+                                           GL_ONE,   // lighten only
                                            GL_ZERO};
 
 ShadingProgram::ShadingProgram(const std::string& vertex_file, const std::string& fragment_file) : vertex_id_(0), fragment_id_(0), id_(0)
diff --git a/Shader.h b/Shader.h
index ee8e551..4ae850c 100644
--- a/Shader.h
+++ b/Shader.h
@@ -64,6 +64,7 @@ public:
         BLEND_SUBTRACT,
         BLEND_MULTIPLY,
         BLEND_SOFT_LIGHT,
+        BLEND_HARD_LIGHT,
         BLEND_SOFT_SUBTRACT,
         BLEND_LIGHTEN_ONLY,
         BLEND_NONE