Update #18 - Final release, added PBR shaders

sources/resources/assets/eagler/glsl/deferred/post_exposure_final.fsh

@@ -0,0 +1,40 @@
+#line 2
+
+/*
+ * Copyright (c) 2023 LAX1DUDE. All Rights Reserved.
+ * 
+ * WITH THE EXCEPTION OF PATCH FILES, MINIFIED JAVASCRIPT, AND ALL FILES
+ * NORMALLY FOUND IN AN UNMODIFIED MINECRAFT RESOURCE PACK, YOU ARE NOT ALLOWED
+ * TO SHARE, DISTRIBUTE, OR REPURPOSE ANY FILE USED BY OR PRODUCED BY THE
+ * SOFTWARE IN THIS REPOSITORY WITHOUT PRIOR PERMISSION FROM THE PROJECT AUTHOR.
+ * 
+ * NOT FOR COMMERCIAL OR MALICIOUS USE
+ * 
+ * (please read the 'LICENSE' file this repo's root directory for more info) 
+ * 
+ */
+
+precision lowp int;
+precision highp float;
+precision highp sampler2D;
+
+in vec2 v_position2f;
+
+layout(location = 0) out float exposureOut1f;
+
+uniform sampler2D u_inputTexture;
+uniform vec2 u_inputSize2f;
+
+void main() {
+
+	float a = 0.0;
+	float b = 0.0;
+	for(vec2 v = vec2(0.0, u_inputSize2f * 0.5); v.y < 1.0; v.y += u_inputSize2f.y) {
+		for(v.x = u_inputSize2f.x * 0.5; v.x < 1.0; v.x += u_inputSize2f.x) {
+			a += textureLod(u_inputTexture, v, 0.0).r * (1.0 - length(v - 0.5));
+			b += 1.0;
+		}
+	}
+
+	exposureOut1f = a / b;
+}