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Danwhitton
11-04-2003, 06:15 AM
OK.
Got a question on why an HDRI reflection will not fully reflect around a sphere. IS it my ray depth?

MY scene is set up entirely with mr shaders.

sphere has a DGS will light blue diffuse and .8 specularity

ground plane grey diffuse, no psec( although I got some more reflection around the sphere by making my ground somewhat specular, but then the DHR image is mapped onto my ground plane, not what I want to do)

I created a giant sphere turned off all stats to make it invisble, added an mib_lookup_sphere to it. Then went to Render Globals> Custom Entities> Custom Textures and hit create. Sourced the file texture in the hypershade and added an HDR radiance texture to it. Went to my mib-Lookup_Sphere and next to "tex" typed the string of my file.

Next I created a Point light turned on GI (energy =1000, exponet =1.6) suppressed it. Export options> Light Shader> Physical Light
. Under color I set the V(intensity to match the enery of my photons of 1000) Went back made it an area light with sphere.

Render Globals is preety much default
Production Quality
GI
FG with min/max
Precompute photon lookup
jitter
Sampling Quality = 1, 3

Any ideas?

Thanks in advance. Dan
Ozren
11-04-2003, 08:15 AM
I dont quite understand your Q, but....the sphere is reflecting the flor, so it cant reflect your entire hdri map. Also your reflections are wrong, and thats becuause hdri is not correctly maped to your sorrounding sphere.
galactor
11-04-2003, 09:43 AM
Can you make the HDR map vivible on the environment sphere?
Maybe the image isn't mapped correctly onto the sphere.

:: Galactor ::
wgreenlee1
11-04-2003, 12:37 PM
it wont...
the sphere is reflecting the floor also and so you cant see the hdri all the way around this blue sphere
take away the plane(floor)and it will lite the sphere but the sphere is going to reflect everything

if ray tracing is on it wont care what the shaders say it going to shoot the rays to the floor and make it visable in the sphere
bmoney
11-06-2003, 04:15 PM
The sphere is reflecting the floor and the harsh shadow is the only thing that makes it look a bit average. Is the Sphere you used for HDRI a full sphere, or is it cut in half?
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