diff --git a/shaders/glsl.cpp b/shaders/glsl.cpp
index df15cf00..ea51fb62 100644
--- a/shaders/glsl.cpp
+++ b/shaders/glsl.cpp
@@ -598,6 +598,13 @@ void GLSLShader::render(GLuint &orig,
     pass[0].width = width;
     pass[0].height = height;
 
+    for (int i = 1; i < (int)pass.size(); i++)
+    {
+        GLuint tmp = pass[i].texture;
+        pass[i].texture = pass[i].feedback_texture;
+        pass[i].feedback_texture = tmp;
+    }
+
     // loop through all real passes
     for (unsigned int i = 1; i < pass.size(); i++)
     {
@@ -705,18 +712,10 @@ void GLSLShader::render(GLuint &orig,
 
         glBindTexture(GL_TEXTURE_2D, pass[i - 1].texture);
         glPixelStorei(GL_UNPACK_ROW_LENGTH, (GLint) pass[i - 1].width);
-        glTexParameteri(GL_TEXTURE_2D,
-                        GL_TEXTURE_MAG_FILTER,
-                        filter);
-        glTexParameteri(GL_TEXTURE_2D,
-                        GL_TEXTURE_MIN_FILTER,
-                        filter);
-        glTexParameteri(GL_TEXTURE_2D,
-                        GL_TEXTURE_WRAP_S,
-                        pass[i].wrap_mode);
-        glTexParameteri(GL_TEXTURE_2D,
-                        GL_TEXTURE_WRAP_T,
-                        pass[i].wrap_mode);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, pass[i].wrap_mode);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, pass[i].wrap_mode);
 
         glUseProgram(pass[i].program);
 #ifdef USE_SLANG
diff --git a/shaders/glsl.h b/shaders/glsl.h
index ee15de1c..62c8e859 100644
--- a/shaders/glsl.h
+++ b/shaders/glsl.h
@@ -81,7 +81,8 @@ enum
     SL_LUTSIZE = 6,
     SL_MVP = 7,
     SL_FRAMECOUNT = 8,
-    SL_PARAM = 9
+    SL_PARAM = 9,
+    SL_FEEDBACK = 10
 };
 
 typedef struct
@@ -124,6 +125,7 @@ typedef struct
     std::vector<SlangUniform> uniforms;
     std::vector<uint8_t> ubo_buffer;
     GLuint ubo;
+    GLuint feedback_texture;
 #endif
 } GLSLPass;
 
@@ -189,6 +191,8 @@ typedef struct
     void slang_introspect();
     void slang_set_shader_vars(int p);
     void slang_clear_shader_vars();
+
+    bool using_feedback = false;
 #endif
 } GLSLShader;
 
diff --git a/shaders/slang.cpp b/shaders/slang.cpp
index 1af7815a..b0c596f3 100644
--- a/shaders/slang.cpp
+++ b/shaders/slang.cpp
@@ -377,6 +377,7 @@ void GLSLShader::slang_introspect()
     for (int i = 1; i < (int)pass.size(); i++)
     {
         GLSLPass &p = pass[i];
+        p.feedback_texture = 0;
 
         int num_uniforms;
         glGetProgramiv(p.program, GL_ACTIVE_UNIFORMS, &num_uniforms);
@@ -491,6 +492,13 @@ void GLSLShader::slang_introspect()
             {
                 u.num++;
             }
+            else if (indexedtexorsize("PassFeedback", SL_FEEDBACK))
+            {
+                using_feedback = true;
+                u.num++;
+                if (u.type == SL_FEEDBACK + 1)
+                    u.type = SL_PASSSIZE;
+            }
             else if (indexedtexorsize("User", SL_LUTTEXTURE))
             {
             }
@@ -642,6 +650,7 @@ void GLSLShader::slang_set_shader_vars(int p)
         case SL_PREVIOUSFRAMETEXTURE:
         case SL_PASSTEXTURE:
         case SL_LUTTEXTURE:
+        case SL_FEEDBACK:
             glActiveTexture(GL_TEXTURE0 + texunit);
 
             if (u.type == SL_PASSTEXTURE)
@@ -650,6 +659,8 @@ void GLSLShader::slang_set_shader_vars(int p)
                 glBindTexture(GL_TEXTURE_2D, prev_frame[u.num - 1].texture);
             else if (u.type == SL_LUTTEXTURE)
                 glBindTexture(GL_TEXTURE_2D, lut[u.num].texture);
+            else if (u.type == SL_FEEDBACK)
+                glBindTexture(GL_TEXTURE_2D, pass[u.num].feedback_texture);
 
             if (u.location == -1)
                 *((GLint *)(ubo + u.offset)) = texunit;
@@ -727,6 +738,9 @@ void GLSLShader::slang_set_shader_vars(int p)
             break;
         }
     }
+    if (using_feedback)
+        for (int i = 1; i < (int)pass.size(); i++)
+            glGenTextures(1, &pass[i].feedback_texture);
 
     if (pass[p].ubo_buffer.size() > 0)
     {