Fix dust rendering

shader/cloud/basic.frag

@@ -1,30 +1,15 @@
 #version 450 core
 in vec4 vPosID;
 in vec4 vCol;
-in vec4 vCenterSize;
 in vec4 vControls;
 layout (location=0) out vec4 fCol;
 layout (location=1) out vec4 fPos;
 layout (location=2) out vec4 fNorm;
 void main()
 {
-    // there are quite a few intricate controls concerning the normals
-    // we want normals to be bigger towards the center, so that when two clouds
-    // are blended central normals predominate
-    // similarly, we want normals to be bigger the further up the cloud is
-    // finally, we want normals to allow for shadows at the edge of a cloud
-    // when a light is direcly above the cloud
     float d = dot(vControls,vControls);
     if (d > 1) {discard;}
     fCol = vec4(vCol.xyz,vCol.w*(1-d));
-    //fCol = vCol;
-    //float rad = vCenterSize.w*0.5;
-    float rad = vCenterSize.w;
-    float h = (1-d) * rad;
-    fPos = vec4(vPosID.xy, vPosID.z + h, vCol.w*(1-d));
-    //vec3 vCen = 
-    //vec3 fn1 = fPos.z*normalize(vec3(vCenterSize.xyz - fPos.xyz));
-    vec3 fn1 = fPos.z*normalize(vec3(vCenterSize.xy - vPosID.xy,0));
-    //fNorm = vec4(fn1,fPos.w);
-    fNorm = vec4(vControls.xy, 0.1 ,fPos.w);
+    fPos = vec4(vPosID.xyz, vCol.w*(1-d));
+    fNorm = vec4(vControls.xy, 0.1 ,fPos.w); // note arbirary 0.1, might want to point downwards at the edges?
 }

shader/cloud/basic.vert

@@ -1,18 +1,18 @@
 #version 450 core
 layout (location = 0) in vec4 posID;
 layout (location = 1) in vec4 col;
-layout (location = 2) in vec4 centerSize;
-layout (location = 3) in vec4 controls;
+//layout (location = 2) in vec4 centerSize;
+layout (location = 2) in vec4 controls;
 layout (std140, binding = 0) uniform TheMat { mat4 theMat; } ;
 out vec4 vPosID;
 out vec4 vCol;
-out vec4 vCenterSize;
+//out vec4 vCenterSize;
 out vec4 vControls;
 void main()
 {
   gl_Position = theMat * vec4(posID.xyz,1);
   vPosID = posID;
   vCol = col;
-  vCenterSize = centerSize;
+  //vCenterSize = centerSize;
   vControls = controls;
 }