glow shaders included properly, shadows on no background in screenshot too

pipeline/glow-extras/pipeline/RenderingPipeline.cc

@@ -265,6 +265,8 @@ void RenderingPipeline::render(const std::function<void(RenderPass const& pass)>
             // copy shader (with downsampling and dithering)
             auto shader = mShaderOutput->use();
             shader.setTexture("uTexture", toColorTmp ? mTargetColor : mTargetColorTmp);
+            shader.setTexture("uTextureDepth", mTargetDepth);
+            shader.setTexture("uTexRevealage", mTargetTranspReveal);
             shader.setUniform("uOutputSize", glm::vec2(getOutputWidth(), getOutputHeight()));
             shader.setUniform("uDitheringStrength", mDitheringStrength);
 

pipeline/shader/glow-pipeline/output.fsh

 #include "utils.glsl"
 
 uniform sampler2DRect uTexture;
+uniform sampler2DRect uTextureDepth;
+uniform sampler2DRect uTexRevealage;
 
 uniform vec2 uOutputSize;
 uniform float uDitheringStrength;
 
 in vec2 aPosition;
 
-out vec3 fColor;
+out vec4 fColor;
 
 void main()
 {
     // this is tested to properly down-scale 2-to-1
-    vec3 color = texture(uTexture, gl_FragCoord.xy * textureSize(uTexture) / uOutputSize).rgb;
+    vec4 color = texture(uTexture, gl_FragCoord.xy * textureSize(uTexture) / uOutputSize).rgba;
 
     uint seed = uint(gl_FragCoord.x) + uint(gl_FragCoord.y) * 8096;
     float r = wang_float(wang_hash(seed * 3 + 0));
@@ -20,5 +22,11 @@ void main()
     float b = wang_float(wang_hash(seed * 3 + 2));
     vec3 random = vec3(r, g, b);
 
-    fColor = color + (random - .5) * uDitheringStrength;
+    fColor.rgb = color.rgb + (random - .5) * uDitheringStrength;
+
+    float alpha = texelFetch(uTexRevealage, ivec2(gl_FragCoord.xy)).r;
+    fColor.a = float(texture(uTextureDepth, gl_FragCoord.xy).r != 1);
+
+    if(alpha != 1)
+       fColor.a = alpha;
 }