How would I create a simple but nice looking river?
Even a small creek or stream of water i just want to know some good ways of doing this!
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2$\begingroup$ To get the most from this site it is recommended to show what you've tried, this gives us an idea of your level or familiarity with Blender, and helps give answers. As it stands the question is too vague and we have no idea what kind of answers would be most suitable. Do you know how to model? $\endgroup$– zeffiiCommented Jun 10, 2015 at 15:05
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2$\begingroup$ You have tagged your question with both 'game-engine' and 'blender-render' which one are you using? $\endgroup$– Ray MairlotCommented Jun 10, 2015 at 15:11
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1$\begingroup$ i would recommend this video for your question youtube.com/watch?v=xNWIUqETWfA $\endgroup$– agha rehan abbasCommented Jun 10, 2015 at 15:21
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$\begingroup$ Since the OP accepted the answer as useful, I've gone ahead and edited the question to be more specific. Let me know if it's acceptable. $\endgroup$– Todd McIntoshCommented Jun 10, 2015 at 17:11
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1 Answer
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One of the tricky things about rivers is how to animate the water ripples along the path of the curving river. The best way that I have found to do this is by adding a Displacement Modifier set to UV texture coordinates and using a Noise/Cloud texture as well as UV unwrapping the mesh first before extrusion.
There are two important secrets to this technique.
- One is UV unwrapping the river water mesh as a straight line first before you alter it to fit the river shape. If you start with a plane, unwrap it right away, then the UV map will stay straight even if you extrude the plane edges to form the curved river shape.
- Secondly, you need to enable the AnimAll addon so that you can animate the UV map.
Once you do that you can set two keyframes for
the UV map and then animate it moving from top to bottom. In the Tools panel on the left, choose the Animation tab (after enabling the AnimAll addon). Select the UV checkbox, and click the Insert keyframe button at the appropriate frames after moving the UV map.
This will move the texture image along the river and will also move the displacement along the river. Once your UV's are set and animated you can use those texture coordinates for material textures or displacement modifier textures.
Here's a test scene using this technique:
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$\begingroup$ @sketcherskt I'm glad this answer helped you. It would be great if you could modify your question so that it more accurately reflected what you were looking for. This way the post will be clearer and will help others more effectively in the future. $\endgroup$ Commented Jun 10, 2015 at 16:42
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$\begingroup$ I just edited the question to be more specific. Let me know if it does not reflect the main point of your original question. $\endgroup$ Commented Jun 10, 2015 at 16:47
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$\begingroup$ hey todd mcintosh how was i suppose to know how to make a river and be that specific i thought how to make a river would be enough info and it seemed so but im glad you edited my question to make it more specific. $\endgroup$ Commented Jun 10, 2015 at 16:52
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$\begingroup$ also how do i add keyframes to uv's? $\endgroup$ Commented Jun 10, 2015 at 16:53
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$\begingroup$ You use the AnimAll addon to give you keyframe ability on the UV map. I've added an extra screen shot in the answer. $\endgroup$ Commented Jun 10, 2015 at 17:02