How to reuse HDR reflection probes?

Unity Engine
1

Hi all,
I want to use a cubemap for my eye material as custom reflection, so i set up a scene and use a reflection probe to bake a HDR cubemap.
The problem is, a half4 value ‘unity_SpecCube0_HDR’ is required to decode the hdr color value:

                float4 rgbm = UNITY_SAMPLE_TEXCUBE_LOD(unity_SpecCube0, reflUVW, mip);
                float3 reflectColor = DecodeHDR_NoLinearSupportInSM2(rgbm, unity_SpecCube0_HDR);

I think the corresponding lightingData contains but without document i cant parse the binary data.

Anyone knows where to find it?

2

Solved by using rgbm decode method here:
http://realtimecollisiondetection.net/blog/?p=15

float3 rgb = rgbm.rgb * rgbm.a * 6;