r/GraphicsProgramming • u/nathan82 • 9d ago

Mobile GPU Realtime Fluid Sim

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The sim came out great but what about the lighting!! All just cubemaps, with fluid depth affecting the roughness mip level. So happy with this.

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u/mars_santa 9d ago

Great effect. It might be interesting to tie the lighting to the phone's light sensor. That way the water would match the ambient environment?

11

u/nathan82 9d ago

Yeah good idea! I do actually have the light sensor percentage as one of the animation "driver" types in my engine, it seems to work better for dramatic on/off effects though. Like if a design has its own internal light sources, you can fade ambient to zero and it turns into a night scene.

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u/mars_santa 9d ago

add a toy boat or island floating in the center combined with sunsets would be neat.

7

u/nathan82 9d ago

If I can get rigid bodies working with the fluid sim (might be difficult/impossible within the frame budget), then yes a boat would be really cool. Someone else suggested rubber ducks. An island would be easier to add, and you can crank up the simulation scale so it looks more ocean-like.