Changed global and local compute work group sizes (Fixes #251)

computeparticles/computeparticles.cpp

@@ -204,7 +204,7 @@ public:
 		vkCmdBindDescriptorSets(compute.commandBuffer, VK_PIPELINE_BIND_POINT_COMPUTE, compute.pipelineLayout, 0, 1, &compute.descriptorSet, 0, 0);
 
 		// Dispatch the compute job
-		vkCmdDispatch(compute.commandBuffer, PARTICLE_COUNT / 16, 1, 1);
+		vkCmdDispatch(compute.commandBuffer, PARTICLE_COUNT / 256, 1, 1);
 
 		// Add memory barrier to ensure that compute shader has finished writing to the buffer
 		// Without this the (rendering) vertex shader may display incomplete results (partial data from last frame) 

data/shaders/computeparticles/particle.comp

@@ -16,7 +16,7 @@ layout(std140, binding = 0) buffer Pos
    Particle particles[ ];
 };
 
-layout (local_size_x = 16, local_size_y = 16) in;
+layout (local_size_x = 256) in;
 
 layout (binding = 1) uniform UBO 
 {