Output debugger

(can display intermediary buffers)

shaders/debug/alpha-channel.glsl

@@ -0,0 +1,18 @@
+#version 450 core
+
+//! type fragment
+
+layout( location = 0 ) uniform sampler2D u_InputTexture;
+layout( location = 1 ) uniform int u_LOD;
+layout( location = 2 ) uniform vec2 u_OutputSize;
+
+layout( location = 0 ) out vec4 o_Color;
+
+void main( void )
+{
+	vec2 ts = textureSize( u_InputTexture , u_LOD );
+	ivec2 pos = ivec2( ts * gl_FragCoord.xy / u_OutputSize );
+	o_Color = vec4( vec3( texelFetch( u_InputTexture , pos , u_LOD ).a ) ,
+			1 );
+}
+

shaders/debug/copy.glsl

@@ -0,0 +1,17 @@
+#version 450 core
+
+//! type fragment
+
+layout( location = 0 ) uniform sampler2D u_InputTexture;
+layout( location = 1 ) uniform int u_LOD;
+layout( location = 2 ) uniform vec2 u_OutputSize;
+
+layout( location = 0 ) out vec4 o_Color;
+
+void main( void )
+{
+	vec2 ts = textureSize( u_InputTexture , u_LOD );
+	ivec2 pos = ivec2( ts * gl_FragCoord.xy / u_OutputSize );
+	o_Color = vec4( texelFetch( u_InputTexture , pos , u_LOD ).rgb , 1 );
+}
+

shaders/debug/depth-linear.glsl

@@ -0,0 +1,20 @@
+#version 450 core
+
+//! type fragment
+
+layout( location = 0 ) uniform sampler2D u_InputTexture;
+layout( location = 1 ) uniform int u_LOD;
+layout( location = 2 ) uniform vec2 u_OutputSize;
+layout( location = 3 ) uniform float u_Factor;
+
+layout( location = 0 ) out vec4 o_Color;
+
+void main( void )
+{
+	vec2 ts = textureSize( u_InputTexture , u_LOD );
+	ivec2 pos = ivec2( ts * gl_FragCoord.xy / u_OutputSize );
+	float depth = texelFetch( u_InputTexture , pos , u_LOD ).x
+		* u_Factor;
+	o_Color = vec4( vec3( depth ) , 1 );
+}
+

shaders/debug/depth-reinhart.glsl

@@ -0,0 +1,18 @@
+#version 450 core
+
+//! type fragment
+
+layout( location = 0 ) uniform sampler2D u_InputTexture;
+layout( location = 1 ) uniform int u_LOD;
+layout( location = 2 ) uniform vec2 u_OutputSize;
+
+layout( location = 0 ) out vec4 o_Color;
+
+void main( void )
+{
+	vec2 ts = textureSize( u_InputTexture , u_LOD );
+	ivec2 pos = ivec2( ts * gl_FragCoord.xy / u_OutputSize );
+	vec3 c = vec3( texelFetch( u_InputTexture , pos , u_LOD ).r );
+	o_Color = vec4( 1 - c / ( c + 1 ) , 1 );
+}
+

shaders/debug/reinhart.glsl

@@ -0,0 +1,18 @@
+#version 450 core
+
+//! type fragment
+
+layout( location = 0 ) uniform sampler2D u_InputTexture;
+layout( location = 1 ) uniform int u_LOD;
+layout( location = 2 ) uniform vec2 u_OutputSize;
+
+layout( location = 0 ) out vec4 o_Color;
+
+void main( void )
+{
+	vec2 ts = textureSize( u_InputTexture , u_LOD );
+	ivec2 pos = ivec2( ts * gl_FragCoord.xy / u_OutputSize );
+	vec3 c = texelFetch( u_InputTexture , pos , u_LOD ).rgb;
+	o_Color = vec4( c / ( c + 1 ) , 1 );
+}
+

shaders/scene.f.glsl

@@ -164,8 +164,10 @@ void main( )
 		}
 		bc = FOG_Apply( bc , length( u_CamPos - hitPos ) ,
 				u_FogAttenuation , background );
+		o_Z = r.x;
+	} else {
+		o_Z = u_Render.w;
 	}
 
 	o_Color = bc;
-	o_Z = r.x;
 }

shaders/unused/copy.glsl

@@ -1,20 +0,0 @@
-#version 450 core
-
-layout( location = 0 ) uniform sampler2D u_InputTexture;
-layout( location = 1 ) uniform int u_LOD;
-
-layout( location = 0 ) out vec4 color;
-
-void main( void )
-{
-#if 1
-	vec2 ts = textureSize( u_InputTexture , u_LOD );
-	vec2 tmp = gl_FragCoord.xy / vec2( 1280. , 720. );
-	ivec2 pos = ivec2( ts * tmp );
-	color = texelFetch( u_InputTexture , pos , u_LOD );
-#else
-	vec2 tmp = gl_FragCoord.xy / vec2( 1280. , 720. );
-	color = textureLod( u_InputTexture , tmp , float( u_LOD ) );
-#endif
-}
-