Fix for alpha particles

Examples/Flashlight/Shader Selector (EXP) (Flashlight)/assets/minecraft/shaders/post/transparency.json

@@ -29,16 +29,6 @@
                 }
             ]
         },
-        {
-            "name": "toggler/remove",
-            "intarget": "particles",
-            "outtarget": "final"
-        },
-        {
-            "name": "blit",
-            "intarget": "final",
-            "outtarget": "particles"
-        },
         {
             "name": "transparency",
             "intarget": "minecraft:main",

Examples/Flashlight/Shader Selector (EXP) (Flashlight)/assets/minecraft/shaders/program/transparency.fsh

@@ -0,0 +1,105 @@
+#version 150
+
+uniform sampler2D DiffuseSampler;
+uniform sampler2D DiffuseDepthSampler;
+uniform sampler2D TranslucentSampler;
+uniform sampler2D TranslucentDepthSampler;
+uniform sampler2D ItemEntitySampler;
+uniform sampler2D ItemEntityDepthSampler;
+uniform sampler2D ParticlesSampler;
+uniform sampler2D ParticlesDepthSampler;
+uniform sampler2D WeatherSampler;
+uniform sampler2D WeatherDepthSampler;
+uniform sampler2D CloudsSampler;
+uniform sampler2D CloudsDepthSampler;
+
+in vec2 texCoord;
+
+
+#define NUM_LAYERS 6
+
+vec4 color_layers[NUM_LAYERS];
+float depth_layers[NUM_LAYERS];
+int active_layers = 0;
+
+out vec4 fragColor;
+
+void try_insert( vec4 color, float depth ) {
+    if ( color.a == 0.0 ) {
+        return;
+    }
+
+    color_layers[active_layers] = color;
+    depth_layers[active_layers] = depth;
+
+    int jj = active_layers++;
+    int ii = jj - 1;
+    while ( jj > 0 && depth_layers[jj] > depth_layers[ii] ) {
+        float depthTemp = depth_layers[ii];
+        depth_layers[ii] = depth_layers[jj];
+        depth_layers[jj] = depthTemp;
+
+        vec4 colorTemp = color_layers[ii];
+        color_layers[ii] = color_layers[jj];
+        color_layers[jj] = colorTemp;
+
+        jj = ii--;
+    }
+}
+
+flat in vec2 oneTexel;
+
+void try_insert_particle( vec4 color, float depth ) {
+    vec4 col = color;
+    bool isMarker = col.rg * 255. == vec2(254., 253.);
+    if (isMarker) {
+        col = texture(
+            DiffuseSampler,
+            texCoord + vec2(0.0, oneTexel.y)
+        );
+    }
+
+    if ( col.a == 0.0 ) {
+        return;
+    }
+
+    color_layers[active_layers] = col;
+    depth_layers[active_layers] = depth;
+
+    int jj = active_layers++;
+    int ii = jj - 1;
+    while ( jj > 0 && depth_layers[jj] > depth_layers[ii] ) {
+        float depthTemp = depth_layers[ii];
+        depth_layers[ii] = depth_layers[jj];
+        depth_layers[jj] = depthTemp;
+
+        vec4 colorTemp = color_layers[ii];
+        color_layers[ii] = color_layers[jj];
+        color_layers[jj] = colorTemp;
+
+        jj = ii--;
+    }
+}
+
+vec3 blend( vec3 dst, vec4 src ) {
+    return ( dst * ( 1.0 - src.a ) ) + src.rgb;
+}
+
+void main() {
+    color_layers[0] = vec4( texture( DiffuseSampler, texCoord ).rgb, 1.0 );
+    depth_layers[0] = texture( DiffuseDepthSampler, texCoord ).r;
+    active_layers = 1;
+
+    try_insert( texture( TranslucentSampler, texCoord ), texture( TranslucentDepthSampler, texCoord ).r );
+    try_insert( texture( ItemEntitySampler, texCoord ), texture( ItemEntityDepthSampler, texCoord ).r );
+    try_insert_particle( texture( ParticlesSampler, texCoord ), texture( ParticlesDepthSampler, texCoord ).r );
+    try_insert( texture( WeatherSampler, texCoord ), texture( WeatherDepthSampler, texCoord ).r );
+    try_insert( texture( CloudsSampler, texCoord ), texture( CloudsDepthSampler, texCoord ).r );
+
+    vec3 texelAccum = color_layers[0].rgb;
+    for ( int ii = 1; ii < active_layers; ++ii ) {
+        texelAccum = blend( texelAccum, color_layers[ii] );
+    }
+
+    fragColor = vec4( texelAccum.rgb, 1.0 );
+}

Examples/Flashlight/Shader Selector (EXP) (Flashlight)/assets/minecraft/shaders/program/transparency.json

@@ -0,0 +1,28 @@
+{
+    "blend": {
+        "func": "add",
+        "srcrgb": "one",
+        "dstrgb": "zero"
+    },
+    "vertex": "screenquad",
+    "fragment": "transparency",
+    "attributes": [ "Position" ],
+    "samplers": [
+        { "name": "DiffuseSampler" },
+        { "name": "DiffuseDepthSampler" },
+        { "name": "TranslucentSampler" },
+        { "name": "TranslucentDepthSampler" },
+        { "name": "ItemEntitySampler" },
+        { "name": "ItemEntityDepthSampler" },
+        { "name": "ParticlesSampler" },
+        { "name": "ParticlesDepthSampler" },
+        { "name": "CloudsSampler" },
+        { "name": "CloudsDepthSampler" },
+        { "name": "WeatherSampler" },
+        { "name": "WeatherDepthSampler" }
+    ],
+    "uniforms": [
+        { "name": "ProjMat",    "type": "matrix4x4", "count": 16, "values": [ 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0 ] },
+        { "name": "OutSize",    "type": "float",     "count": 2,  "values": [ 1.0, 1.0 ] }
+    ]
+}

Examples/Phosphor/Shader.Selector.Phosphor/assets/minecraft/shaders/post/transparency.json

@@ -2,7 +2,6 @@
     "targets": [
         { "name": "controller", "width": 2, "height": 3 },
         { "name": "controllerSwap", "width": 2, "height": 3 },
-        { "name": "manic.tentacles", "width": 256, "height": 256},
         "water",
         "translucent",
         "itemEntity",
@@ -30,16 +29,6 @@
                 }
             ]
         },
-        {
-            "name": "toggler/remove",
-            "intarget": "particles",
-            "outtarget": "final"
-        },
-        {
-            "name": "blit",
-            "intarget": "final",
-            "outtarget": "particles"
-        },
         {
             "name": "transparency",
             "intarget": "minecraft:main",