I find that the best way to position the image is either by adjusting the opacity to 50%, or setting the blend mode of the layer to multiply (works best on lighter surfaces). Once you’ve found the best image, place it over the base render image. If your model has a more complicated topography or surface, matching the perspective can be a bit trickier. In my example, level ground with the horizon a little bit above the halfway point would be the ideal perspective for an image.
The next step is to find an image of grass with a similar perspective of the render. As you can see, there is already grass applied to the bridge, but it is too flat and uniform. This is what the render looked like straight out of Vray. The render shows the main building in the background, with a bridge filling most of the space. In the example below, I’m using a design for a productive infrastructure for sheep that was for a studio project. This method involves using an existing photo to be overlaid on top of the render. The first method involves using an existing photo, and matching that into the scene, while the second method consists of painting in the blades of grass with the Photoshop brush tool. This tutorial will demonstrate two methods to adding realistic grass to your renderings.
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