Change default blending function

Remove the rendering of our star

shaders/ABuffer/abufferResolveFragment.glsl

@@ -128,11 +128,14 @@ vec3 CartesianToSpherical(vec3 _cartesian) {
 }
 
 vec4 blend(vec4 src, vec4 dst) {
+	#if 0
 	vec4 o;
 	o.a = src.a + dst.a * (1.0f - src.a);
 	o.rgb = (src.rgb*src.a + dst.rgb*dst.a* (1.0f - src.a));
 	return o;
-	//return mix(src, dst, dst.a*(1.0f - src.a));
+	#else
+	return mix(src, dst, dst.a*(1.0f - src.a));
+	#endif
 }
 
 void blendStep(inout vec4 dst, in vec4 src, in float stepSize) {

shaders/modules/stars/star_fs.glsl

@@ -74,7 +74,6 @@ void main() {
     }
 
     vec4 textureColor = texture(psfTexture, texCoord);
-    // textureColor.a = sqrt(textureColor.a);
     vec4 fullColor = vec4(color.rgb, textureColor.a);
 
     const float minPixelSize = 25;
@@ -89,10 +88,6 @@ void main() {
     // float depth = 10000.0;
     // gl_FragDepth = depth;
 
-    // Ease the workload on the abuffer a bit
-    if (textureColor.a < 0.1)
-        discard;
-
     ABufferStruct_t frag = createGeometryFragment(fullColor, position, depth);
     addToBuffer(frag);
 }

shaders/modules/stars/star_ge.glsl

@@ -55,6 +55,9 @@ uniform mat4 projection;
 uniform float scaleFactor;
 
 void main() {
+    if ((psc_position[0].x == 0.0) && (psc_position[0].y == 0.0) && (psc_position[0].z == 0.0))
+        return;
+
     ge_brightness = vs_brightness[0];
     ge_velocity = vs_velocity[0];
     ge_speed = vs_speed[0];