diff --git a/src/libs/gltf/gltf_view/lv_gltf_view.cpp b/src/libs/gltf/gltf_view/lv_gltf_view.cpp
index 4dcd80a6a8..1528a4a645 100644
--- a/src/libs/gltf/gltf_view/lv_gltf_view.cpp
+++ b/src/libs/gltf/gltf_view/lv_gltf_view.cpp
@@ -688,8 +688,8 @@ static void lv_gltf_destructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
 static void lv_gltf_view_state_init(lv_gltf_t * view)
 {
     lv_memset(&view->state, 0, sizeof(view->state));
-    view->state.opaque_frame_buffer_width = 256;
-    view->state.opaque_frame_buffer_height = 256;
+    view->state.opaque_frame_buffer_width = LV_GLTF_TRANSMISSION_PASS_SIZE;
+    view->state.opaque_frame_buffer_height = LV_GLTF_TRANSMISSION_PASS_SIZE;
     view->state.material_variant = 0;
     view->state.render_state_ready = false;
     view->state.render_opaque_buffer = false;
diff --git a/src/libs/gltf/gltf_view/lv_gltf_view_internal.h b/src/libs/gltf/gltf_view/lv_gltf_view_internal.h
index 937c12f46d..8cf1f1509c 100644
--- a/src/libs/gltf/gltf_view/lv_gltf_view_internal.h
+++ b/src/libs/gltf/gltf_view/lv_gltf_view_internal.h
@@ -40,6 +40,7 @@
 #define LV_GLTF_GAMMA_DARKEST   "0.8"
 
 #define LV_GLTF_DISTANCE_SCALE_FACTOR 2.5f
+#define LV_GLTF_TRANSMISSION_PASS_SIZE 256
 
 /* Apply defaults below if not set explicitly */
 
diff --git a/src/libs/gltf/gltf_view/lv_gltf_view_render.cpp b/src/libs/gltf/gltf_view/lv_gltf_view_render.cpp
index ba3e6e226a..3adef36933 100644
--- a/src/libs/gltf/gltf_view/lv_gltf_view_render.cpp
+++ b/src/libs/gltf/gltf_view/lv_gltf_view_render.cpp
@@ -572,7 +572,9 @@ static bool draw_material(lv_gltf_t * viewer, const lv_gltf_uniform_locations_t
         GL_CALL(glDisable(GL_CULL_FACE));
     if(gltfMaterial.alphaMode == fastgltf::AlphaMode::Blend) {
         GL_CALL(glEnable(GL_BLEND));
-        GL_CALL(glDepthMask(GL_FALSE));
+        if(!is_transmission_pass) {
+            GL_CALL(glDepthMask(GL_FALSE));
+        }
         GL_CALL(glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA));
         GL_CALL(glBlendEquation(GL_FUNC_ADD));
         GL_CALL(glEnable(GL_CULL_FACE));
@@ -1037,8 +1039,8 @@ static void setup_view_proj_matrix_from_camera(lv_gltf_t * viewer, uint32_t came
 
     float aspect = (float)width / (float)height;
     if(transmission_pass) {
-        width = 256;
-        height = 256;
+        width = LV_GLTF_TRANSMISSION_PASS_SIZE;
+        height = LV_GLTF_TRANSMISSION_PASS_SIZE;
     }
 
     std::visit(fastgltf::visitor{