CODEWITHSUNDEEP
c#unity-game-engineshadertexturesskybox
Alberto
Alberto

Reputation: 294

Cubemap skybox from the scene of the shader

Problem, perhaps, simple: I can't figure out how to get the skybox and apply it to my shader.

I think I'm close but how do I take the skybox from the scene??

mygameobjec.GetComponent<Renderer>().material.SetTexture("_SkyReflection",Skybox.material.Texture??);

Thanks

Upvotes: 0

Views: 704

Answers (1)

Kalle Halvarsson
Kalle Halvarsson

Reputation: 1268

Try RenderSettings.skybox.mainTexture.

https://docs.unity3d.com/ScriptReference/RenderSettings-skybox.html

A tip though: it is also possible to access the current reflection environment inside the shader from a shader global called unity_SpecCube0. Here is a function i often use in my shaders:

// Returns the reflection color given a normal and view direction.
inline half3 SurfaceReflection(half3 viewDir, half3 worldNormal, half roughness) {

    half3 worldRefl = reflect(-viewDir, worldNormal);
    half r = roughness * 1.7 - 0.7 * roughness;
    float4 reflData = UNITY_SAMPLE_TEXCUBE_LOD(
        unity_SpecCube0, worldRefl, r * 6
    );

    return DecodeHDR (reflData, unity_SpecCube0_HDR);
}

Upvotes: 1

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