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-rw-r--r--demo/first_person/height.fs18
1 files changed, 18 insertions, 0 deletions
diff --git a/demo/first_person/height.fs b/demo/first_person/height.fs
new file mode 100644
index 0000000..19315b9
--- /dev/null
+++ b/demo/first_person/height.fs
@@ -0,0 +1,18 @@
+#version 330 core
+
+in vec3 pos;
+in vec3 normal;
+in vec2 uv;
+
+uniform sampler2D grass;
+
+out vec4 fragment_color;
+
+
+void main()
+{
+ vec4 tex = texture(grass, uv);
+ vec4 grey = vec4(0.3, 0.3, 0.3, 1.0);
+ float steepness = dot(vec3(0, 1, 0), normal);
+ fragment_color = mix(tex, grey, steepness);
+}