This is is one of my favourites. The way the grass turned out and the potential for it impressed me as I was not really expecting the scene to be that special. I am very glad that I did not resort to using a flat image for the grass and instead played with static particles till I got grass that fit with the opening scene. I was not able to get particle combing happening so there is no collision. I had to be careful with the placement of the butterfly so that is looked like it was on the grass but avoided any intersections with the particles.
I learnt another lesson the hard way with this scene: I had my sample buffers on the ray-tracing spot lights too low and thus have a disappointing shadow result. Though i was excited to see that each blade of grass seemed to receive its own shadow. I did a quick test and it seems like it should not be too hard to fix. But I don’t think I will have the time to re-render it unfortunately as this shot took a while.