source: opengl-game/shaders/explosion.frag@ 845a2cb

#version 450
#extension GL_ARB_separate_shader_objects : enable

layout(location = 0) in float opacity;

layout(location = 0) out vec4 frag_color;

void main() {
   frag_color = vec4(1.0, opacity * opacity, 0.0, opacity);
}