diff --git a/CMakeLists.txt b/CMakeLists.txt
index c5f923f..6f9a961 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,10 +21,6 @@ add_subdirectory(./deps/glm)
 ##test target##
 add_executable(jungle ./test/main.cpp ./deps/glad/src/glad.c)
 target_include_directories(jungle PRIVATE ./test/)
-if (${BLENDING})
-    add_definitions(-DBLENDING=1)
-    message("开启BLENDING")
-endif()
 #glfw dep
 add_dependencies(jungle glfw)
 target_include_directories(jungle PRIVATE ./deps/glfw/include/ ./deps/glad/include/ ./inc)
diff --git a/test/main.cpp b/test/main.cpp
index 96c2c41..9b97476 100644
--- a/test/main.cpp
+++ b/test/main.cpp
@@ -73,9 +73,6 @@ int main()
     glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
     glfwWindowHint(GLFW_SCALE_TO_MONITOR, GLFW_FALSE);
     glfwWindowHint(GLFW_SCALE_FRAMEBUFFER, GLFW_FALSE);
-#ifdef BLENDING
-    glEnable(GL_BLEND);
-#endif
 
 #ifdef __APPLE__
     glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
@@ -115,10 +112,6 @@ int main()
 
     // configure global opengl state
     // -----------------------------
-#ifdef BLENDING
-    glEnable(GL_BLEND);
-    glBlendFunc(GL_SRC_ALPHA, GL_DST_ALPHA);
-#endif
     // glEnable(GL_DEPTH_TEST);
 
     // build and compile our shader zprogram
@@ -342,21 +335,6 @@ int main()
         // glDepthMask(GL_FALSE);
 
         // render transparent objects with blending enabled
-#ifdef BLENDING
-        glEnable(GL_BLEND);
-        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-        for (unsigned int i = 5; i < 10; i++)
-        {
-            ourShader.setIVec2("index", cubeTextures[i]);
-
-            // calculate the model matrix for each object and pass it to shader before drawing
-            glm::mat4 model = glm::mat4(1.0f); // make sure to initialize matrix to identity matrix first
-            model = glm::translate(model, glm::vec3(cubePositions[i]));
-            ourShader.setMat4("model", model);
-            glDrawArrays(GL_TRIANGLES, 0, 36);
-        }
-        glDisable(GL_BLEND);
-#endif
 
         // glDisable(GL_DEPTH_TEST);
         //  glfw: swap buffers and poll IO events (keys pressed/released, mouse moved etc.)