change

1 files changed, 14 insertions, 0 deletions

diff --git a/advanced_lighting/4.normal_mapping/shaders/depth.fs b/advanced_lighting/4.normal_mapping/shaders/depth.fs
new file mode 100644
index 0000000..88fb9e6
--- /dev/null
+++ b/advanced_lighting/4.normal_mapping/shaders/depth.fs
@@ -0,0 +1,14 @@
+#version 330 core
+
+in vec4 frag_pos;
+
+uniform vec3 light_pos;
+uniform float far;
+
+void
+main(void)
+{
+    float light_distance = length(frag_pos.xyz-light_pos);
+    light_distance = light_distance/far;
+    gl_FragDepth = light_distance;
+}