Witch of Git - lovr-particles/blob - shaders/particles.comp

   1 uniform float dt;
   2
   3 struct particle_t {
   4   vec4 positionAndSize;
   5   vec4 velocity;
   6   vec4 padding2; // for LÖVR's limited ShaderBlock type :(
   7   vec4 padding3; // for LÖVR's limited ShaderBlock type :(
   8 };
   9 layout(std430) buffer particleData {
  10   float reloadFlag;
  11   particle_t particles[];
  12 };
  13
  14 layout(local_size_x = 128) in;
  15 void compute() {
  16   uint id = gl_GlobalInvocationID.x;
  17   vec3 vel = particles[id].velocity.xyz;
  18   particles[id].positionAndSize.xyz += vel * dt;
  19   particles[id].velocity.xyz -= vel * length(vel) * dt;
  20 }