Depth fetch workaround.

Shaders/deferred/mesh.frag.glsl

@@ -134,7 +134,9 @@ void main() {
 	}
 	fragColor[0] = vec4(n.xy, packFloat(metalness, roughness), mask_probe);
 #else
-	fragColor[0] = vec4(n.xy, packFloat(metalness, roughness), mask);
+	// fragColor[0] = vec4(n.xy, packFloat(metalness, roughness), mask);
+	// TODO: Can not read and write to depth buffer at once, fetch depth from g0
+	fragColor[0] = vec4(n.xy, packFloat(metalness, roughness), 1.0 - gl_FragCoord.z);
 #endif
 	fragColor[1] = vec4(baseColor.rgb, occ);
 

Shaders/deferred_light/deferred_light.frag.glsl

@@ -99,10 +99,12 @@ void main() {
 	vec2 texCoord = screenPosition * 0.5 + 0.5;
 	// texCoord += vec2(0.5 / screenSize); // Half pixel offset
 
-	// 0 - 1 => -1 - 1
-	float depth = texture(gbufferD, texCoord).r * 2.0 - 1.0;
 	vec4 g0 = texture(gbuffer0, texCoord); // Normal.xy, metallic/roughness, mask
 	vec4 g1 = texture(gbuffer1, texCoord); // Basecolor.rgb, occlusion
+	// 0 - 1 => -1 - 1
+	// float depth = texture(gbufferD, texCoord).r * 2.0 - 1.0;
+	// TODO: Can not read and write to depth buffer at once, fetch depth from g0
+	float depth = (1.0 - g0.a) * 2.0 - 1.0;
 
 	vec3 n;
 	n.z = 1.0 - abs(g0.x) - abs(g0.y);