Hi there. This is my second attempt on creating foliage scene using TheBounty renderer v2.0 for Blender v2.90 (Iโm beta tester). So what can I say, this is superfast renderer for CPU I think. It has different types of lighting algorithms: Direct lighting, Stochastic progressive photon mapping, Bidirectional pathtracing, Photon mapping and Pathtracing which is Unbiased algorithm like Cycles.
So, the engine says by itself and this is second render of the foliage scene too:
โ Stochastic progressive photon mapping (SPPM);
โ Enabled: Premultiply alpha, Trans.shadows is 10, Trans.background, Mat.refract.transparented;
โ 16 AA samples (Gaussian);
โ 2mln photons, Rec.rayDepth is 48, Bounces/Depth is 10;
โ Rendertime: 55 minutes on my Core2Quad Q6600 @2.4ghz, 3Gb Ram Ddr2 800mhz.
EDIT: And yeah, grass textures are based on planes and two trees from Botaniq tree libraries๐. Special credits to the Botaniq team.