diff --git a/inc/render_ogl.h b/inc/render_ogl.h
index 8033aad..2547ff3 100644
--- a/inc/render_ogl.h
+++ b/inc/render_ogl.h
@@ -27,7 +27,8 @@ typedef struct OGLRENDERER
     GLint main_vertex_coord_attr_loc;
     GLuint main_vbos[3];
     GLuint main_vao;
-    GLint frame_count_uni_loc;
+    GLint shader1_frame_count_uni_loc;
+    GLint shader2_frame_count_uni_loc;
     GLuint frame_buffer_id[FBO_COUNT];
     GLuint frame_buffer_tex_id[FBO_COUNT];
     GLint shader1_tex_coord_attr_loc;
diff --git a/src/render_ogl.c b/src/render_ogl.c
index e2e9f8e..f3a894c 100644
--- a/src/render_ogl.c
+++ b/src/render_ogl.c
@@ -507,7 +507,7 @@ static void ogl_init_shader1_program()
 
     GLint vertex_coord_attr_loc = glGetAttribLocation(g_ogl.shader1_program, "VertexCoord");
     g_ogl.shader1_tex_coord_attr_loc = glGetAttribLocation(g_ogl.shader1_program, "TexCoord");
-    g_ogl.frame_count_uni_loc = glGetUniformLocation(g_ogl.shader1_program, "FrameCount");
+    g_ogl.shader1_frame_count_uni_loc = glGetUniformLocation(g_ogl.shader1_program, "FrameCount");
 
     glGenBuffers(3, g_ogl.shader1_vbos);
 
@@ -717,6 +717,7 @@ static void ogl_init_shader2_program()
 
     GLint vertex_coord_attr_loc = glGetAttribLocation(g_ogl.shader2_program, "VertexCoord");
     g_ogl.shader2_tex_coord_attr_loc = glGetAttribLocation(g_ogl.shader2_program, "TexCoord");
+    g_ogl.shader2_frame_count_uni_loc = glGetUniformLocation(g_ogl.shader2_program, "FrameCount");
 
     glGenBuffers(3, g_ogl.shader2_vbos);
 
@@ -1059,6 +1060,9 @@ static void ogl_render()
 
         if (g_ogl.shader1_program && g_ogl.shader2_program && g_ogl.main_program)
         {
+            static int frames = 0;
+            frames++;
+
             /* draw surface into framebuffer */
             glUseProgram(g_ogl.main_program);
 
@@ -1088,6 +1092,9 @@ static void ogl_render()
 
             glBindFramebuffer(GL_FRAMEBUFFER, g_ogl.frame_buffer_id[1]);
 
+            if (g_ogl.shader1_frame_count_uni_loc != -1)
+                glUniform1i(g_ogl.shader1_frame_count_uni_loc, frames);
+
             glBindVertexArray(g_ogl.shader1_vao);
             glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
             glBindVertexArray(0);
@@ -1116,6 +1123,9 @@ static void ogl_render()
             glActiveTexture(GL_TEXTURE1);
             glBindTexture(GL_TEXTURE_2D, g_ogl.frame_buffer_tex_id[0]);
 
+            if (g_ogl.shader2_frame_count_uni_loc != -1)
+                glUniform1i(g_ogl.shader2_frame_count_uni_loc, frames);
+
             glBindVertexArray(g_ogl.shader2_vao);
             glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
             glBindVertexArray(0);
@@ -1161,8 +1171,8 @@ static void ogl_render()
             glBindTexture(GL_TEXTURE_2D, g_ogl.frame_buffer_tex_id[0]);
 
             static int frames = 1;
-            if (g_ogl.frame_count_uni_loc != -1)
-                glUniform1i(g_ogl.frame_count_uni_loc, frames++);
+            if (g_ogl.shader1_frame_count_uni_loc != -1)
+                glUniform1i(g_ogl.shader1_frame_count_uni_loc, frames++);
 
             glBindVertexArray(g_ogl.shader1_vao);
             glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);