fix exposure settings on output

2022-03-06 12:36:21 +08:00
parent 5d4acbfc43
commit 5f66b792c7
1 changed files with 7 additions and 1 deletions
--- a/internal/asset/shader/world/output.frag
+++ b/internal/asset/shader/world/output.frag
@@ -11,5 +11,11 @@ void main() {
 	if (texColor.a < 1e-4)
 		discard;

-	outputColor = vec4(pow(texColor.rgb * exposure, vec3(1.0/gamma)), 1.0f);
+	vec3 mapped = texColor.rgb;
+	if (exposure < 1e-4)
+	 	mapped = mapped / (mapped + vec3(1.0));
+	else
+		mapped = vec3(1.0) - exp(-mapped * exposure);
+
+	outputColor = vec4(pow(mapped, vec3(1.0/gamma)), 1.0f);
 }