X-Git-Url: http://git.lukelau.me/?p=opengl.git;a=blobdiff_plain;f=normalfrag.glsl;fp=normalfrag.glsl;h=1683592f4a546c830a161286ed785d961826f60d;hp=0000000000000000000000000000000000000000;hb=5a4d005b668b98d44ef20391ecddaf6bfc2ee70f;hpb=c5d984e4904ae7b286bf095a1c640cc25cebe9be

diff --git a/normalfrag.glsl b/normalfrag.glsl
new file mode 100644
index 0000000..1683592
--- /dev/null
+++ b/normalfrag.glsl
@@ -0,0 +1,24 @@
+#version 330
+in vec3 normal;
+in vec3 normalEye;
+in vec3 fragPos;
+uniform vec3 lightPos;
+uniform vec3 viewPos;
+uniform vec4 lightColor;
+out vec4 FragColor;
+
+void main() {
+	float ambient = 0.1;
+	float specularStrength = 0.5;
+	vec3 lightDir = normalize(fragPos - lightPos);
+	float diffuse = max(0, dot(-normal, lightDir));
+
+	vec3 viewDir = normalize(fragPos - viewPos);
+	vec3 reflectDir = reflect(-lightDir, normal);
+	float specular = pow(max(0, dot(viewDir, reflectDir)), 128);
+
+	vec4 lighting = (ambient + diffuse + specular) * lightColor;
+
+	FragColor = lighting * vec4(normalEye, 1);
+}
+