Shadertoy demo D-man (using two cubemaps)

[Stefan]

Today a demo named D-man has been published which is using two cubemaps.

I ported it to GeeXLab

I don't have the original cubemaps from Shadertoy, so copy both cupemaps from geexlab_code_sample_pack/host_api/Skybox/  into your data folder

Second cubemap is disabled by default at the end of the pixel shader.
I enabled it to make sure that GeeXLab works as intended.