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 );
+}
+