something

1 files changed, 25 insertions, 0 deletions

diff --git a/advanced_lighting/7.bloom/shaders/final.frag b/advanced_lighting/7.bloom/shaders/final.frag
new file mode 100644
index 0000000..fe9f5d7
--- /dev/null
+++ b/advanced_lighting/7.bloom/shaders/final.frag
@@ -0,0 +1,25 @@
+#version 330 core
+
+in VS_OUT {
+	vec2 tex_coords;
+} vs_out;
+
+out vec4 frag_color;
+
+uniform sampler2D scene;
+uniform sampler2D blur;
+uniform bool bloom;
+uniform float exposure;
+
+void main()
+{
+	const float gamma = 2.2;
+	vec3 scene_color = texture(scene, vs_out.tex_coords).rgb;
+	vec3 blur_color = texture(blur, vs_out.tex_coords).rgb;
+	if (bloom) {
+		scene_color += blur_color;
+	}
+	vec3 result = vec3(1.0) - exp(-scene_color * exposure);
+	result = pow(result, vec3(1.0 / gamma));
+	frag_color = vec4(result, 1.0);
+}