diff --git a/doc/demo11_particle_light/image/light1.gif b/doc/demo11_particle_light/image/light1.gif
new file mode 100644
index 0000000..c74d0fa
Binary files /dev/null and b/doc/demo11_particle_light/image/light1.gif differ
diff --git a/doc/demo11_particle_light/image/light2.jpg.import b/doc/demo11_particle_light/image/light2.jpg.import
new file mode 100644
index 0000000..357337b
--- /dev/null
+++ b/doc/demo11_particle_light/image/light2.jpg.import
@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/light2.jpg-8e71ba3d22e5505a8c0b19e5861928f5.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://doc/demo11_particle_light/image/light2.jpg"
+dest_files=[ "res://.import/light2.jpg-8e71ba3d22e5505a8c0b19e5861928f5.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=true
+svg/scale=1.0
diff --git a/doc/demo11_particle_light/particle.md b/doc/demo11_particle_light/particle.md
index 281caa9..4abfa43 100644
--- a/doc/demo11_particle_light/particle.md
+++ b/doc/demo11_particle_light/particle.md
@@ -3,9 +3,7 @@
 - godot 的 2D 动态光照
 - 首先看看 Demo 的预览效果。可以看到，当我们在 Demo 中移动光源的位置，小人和场景也会随之表现出不同光照的情景
 
-<video src="image/light1.mp4" controls="controls" width="640" height="320" autoplay="autoplay">
-godot 的 2D 动态光照
-</video>
+![Image text](image/light1.gif)
 
 - 那么它和普通的 Sprite 有什么区别呢? 通过对比不难看出它们的差别主要是集中在材质上面。小人使用了自定义的 mat_normal 材质