From e03792c2d5620ca07ac50717062df846927027c0 Mon Sep 17 00:00:00 2001
From: Patrick Schönberger
Date: Wed, 10 Feb 2021 11:52:27 +0100
Subject: render shadowmap and irradiance

---
 shaders/frag_irradiance.glsl | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 shaders/frag_irradiance.glsl

(limited to 'shaders/frag_irradiance.glsl')

diff --git a/shaders/frag_irradiance.glsl b/shaders/frag_irradiance.glsl
new file mode 100644
index 0000000..9e14ebe
--- /dev/null
+++ b/shaders/frag_irradiance.glsl
@@ -0,0 +1,34 @@
+#version 330 core
+
+in vec3 FragPos;
+in vec3 Normal;
+
+out vec4 FragColor;
+
+uniform sampler2D shadowmapTexture;
+
+uniform vec3 objectColor;
+uniform vec3 lightColor;
+uniform vec3 lightPos;
+uniform vec3 viewPos;
+
+void main()
+{
+  vec3 norm = normalize(Normal);
+  vec3 lightDir = normalize(lightPos - FragPos);
+
+  float diff = max(dot(norm, lightDir), 0.0);
+  vec3 diffuse = diff * lightColor;
+
+  float ambientStrength = 0.1;
+  vec3 ambient = ambientStrength * lightColor;
+
+  float specularStrength = 0.5;
+  vec3 viewDir = normalize(viewPos - FragPos);
+  vec3 reflectDir = reflect(-lightDir, norm);
+  float spec = pow(max(dot(viewDir, reflectDir), 0.0), 32);
+  vec3 specular = specularStrength * spec * lightColor;
+
+  vec3 result = (ambient + diffuse + specular) * objectColor;
+  FragColor = vec4(result, 1.0f);
+}
-- 
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