HDR output buffer (WIP)

internal/asset/shader/world/geometry.vert

@@ -3,6 +3,7 @@
 uniform mat4 projection;
 uniform mat4 view;
 uniform mat4 model;
+uniform mat4 mvp;
 uniform mat4 lightspace;
 uniform vec3 viewPos;
 
@@ -33,7 +34,7 @@ void main() {
 	vec4 posView  = view * pos4;
 	fragDepthView = posView.z;
 
-    gl_Position = projection * posView;
+    gl_Position = mvp * vec4(vert, 1);
 
 	fragPosWorld -= viewPos;
 }

internal/asset/shader/world/lighting.frag

@@ -24,8 +24,6 @@ in vec2 fragPosScreen;
 out vec4 outputColor;
 
 
-const float gamma = 2.2;
-
 const float ambient = 0.3, specularStrength = 0.08, specularShininess = 8;
 const float fogDensity = .00003;
 
@@ -64,12 +62,12 @@ void main() {
 
 	color += vec4(fragColor.rgb * light, 0.0f);
 	color.a = fragColor.a;
-	color.rgb = pow(color.rgb, vec3(1.0/gamma));
 
-	float z = gl_FragCoord.z / gl_FragCoord.w;
-	float fog = clamp(exp(-fogDensity * z * z), 0.2, 1);
+	//float z = gl_FragCoord.z / gl_FragCoord.w;
+	//float fog = clamp(exp(-fogDensity * z * z), 0.2, 1);
 
-	outputColor = mix(fogColor, color, fog);
+	//outputColor = mix(fogColor, color, fog);
+	outputColor = color;
 }
 
 void lightSun() {

internal/asset/shader/world/output.frag

@@ -1,10 +1,15 @@
 #version 330
 
 uniform sampler2D tex;
+uniform float gamma, exposure;
 
 in vec2 fragPosScreen;
 out vec4 outputColor;
 
 void main() {
-    outputColor = texture(tex, fragPosScreen);
+    vec4 texColor = texture(tex, fragPosScreen);
+	if (texColor.a < 1e-4)
+		discard;
+
+	outputColor = vec4(pow(texColor.rgb / exposure, vec3(1.0/gamma)), 1.0f);
 }

internal/asset/shader/world/water.frag

@@ -43,7 +43,7 @@ void main() {
 
 	color += vec4(fragColor.rgb * light, 0.0f);
 	color.a = fragColor.a;
-	color.rgb = pow(color.rgb, vec3(1.0/gamma));
+	color.rgb = color.rgb;
 
 	float z = gl_FragCoord.z / gl_FragCoord.w;
 	float fog = clamp(exp(-fogDensity * z * z), 0.2, 1);