iPhone reflective Shader

Unity Engine
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1

I found that ReJ mentioned iPhone doesn’t support Cube Map. So, we can’t use Cube Map to reflection. Is there any way to show reflection of the Sky or environment objects? I want to use it on Water.

I’m thinking a way like:

  • take reflection texture from 3D tools
  • combine it with main texture

Target is to gain following effect:

2

http://forum.unity3d.com/viewtopic.php?t=19243&postdays=0&postorder=asc&start=0

–Eric

3

So, as far as I get [though it’s not much clear there. Sorry if I miss anything], they blend the water texture and the sky texture. Here the question come about the big stone reflection. I think they used it in the water texture.

Please correct me if I miss anything. Thanks.

4

They duplicate all the geometry, invert it in Y, and give it a blue material to “fake” the reflection.

5

Thanks aNTeNNa trEE [quite complex name ;)]. I’m confused about getting the glossiness.

Blue Water texture + RBG Sky can give sky on water. Is there anyway to get the glossiness?

Note: I’m new in ShaderLab, so please correct me if I’m wrong.

6

If by glossiness you mean reflection, there is none, it’s just a trick. No shaders, either, just somewhere around 50% alpha on the water plane probably, so you don’t do anything in shaderlab. See here for another example of the “flipped geometry” technique, with some discussion about it.

–Eric

7

Tons of Thanks to Eric !! I understand that I already got it perfect. But something is missing that is not make me happy. Here is a sample image. Inverted mesh is not perfect here. So, skip it please :). I got reflection but not gloss on it. Is there any point I’m missing? Thanks in advance.

127563--4773--$picture_2_187.png

8

It will look “glossy” once you get the geometry right :wink:

9

Thanks Tree :). I’m going to the inverted geometry on the right place. I will update it. Thanks again :).

10

Thanks all. It’s now perfect :).

Thanks again.