This week I’ve been working on the grass in Unreal Engine 4. In beginning, I downloaded a grass model from Bridge and Imported it into Unreal Engine 4 and then attached a texture to it, the result looks like this.
The result of this test was not satisfactory, the grass was very fake, I think it was the lack of dynamic effects, so I continued to study how to make the grass move, I used the WorlPosition Offset node, using a noise wave map to make the model swaying effect, and then use the two-dimensional gradient map to make the upper part of the grass move, the lower part of the grass does not move, so as to achieve the effect of wind blowing grass.
The results looked good, but I thought it lacked a bit of realism, so I used dynamic mapping to create a fake wind-blown wheat wave effect by connecting normal nodes. Make the grass look more realistic.
In addition, this week I also tried to build my first scene, using the resources I had found, such as trees, vegetation, rocks, branches, etc., to set up the scene based on the references I had found earlier.
Next week I will continue to work on how to add light effects in Unreal Engine and I will optimize the scene to add more details to achieve the effect we have in mind.