[#69] Fade out particle color towards end of life

projects/particle_simulation/shaders/shader_space.frag

@@ -40,4 +40,7 @@ void main()
    
    // make the triangle look like a circle
    outColor *= circleFactor(passTriangleCoordinates);
+   
+   // fade out particle shortly before it dies
+   outColor *= clamp(passlifeTime * 2, 0, 1);
 }
\ No newline at end of file

projects/particle_simulation/shaders/shader_water.frag

@@ -40,4 +40,7 @@ void main()
     
     // make the triangle look like a circle
    outColor *= circleFactor(passTriangleCoordinates);
+   
+   // fade out particle shortly before it dies
+   outColor *= clamp(passlifeTime * 2, 0, 1);
 }