Indigo Renderer Forum

Bug - Indigo v0.6 Test 1 - bidirectional/phong

Edited for better reading and to save the searchsystem of phpBB. *fg*

Heya Nick!

The bidirectional support is mocking the phong lobe ...

If I try to render a scene with bidirectional enabled and phong materials
in the scene I get strange artifacts. Without bidir no problem. ;o)

Here is the example that is showing the artifacts and the download of the scenefile:


note: No primitive is being used, meshes only.

Thanks for reading!

edit: btw. big thanx for the phong speedup! The noise clears up
faster then in Indigo v0.5 Test 7.

edit 2: The provided scene renders fine with and without bidir
in Indigo v0.5 Test7.

edit 3: Tested the same scene without Meshlights and used
a HDRI for lighting. Result: No problem with bidirectinal support.

This Image shows HDRI with bidirectional ...


edit 4:Test with Skylight and background element: Same problem
with bidir ... artefacts are showing up fast.

This Image shows Background element with bidirectional ...


... to be continued.



take care
psor

I also have this problem, but I found that using phong with NK data removes the artifacts... weird.
Here's part of an image (after about 12 hours rendering) with normal phong materials:


Ithen changed the metal backplate to use NKdata and it rendered fine, though the plug plastic still had artifacts.


Edit: also had this problem majorly with skylights and meshes, though everything looks fine in v5 test7

Nick? I need some feedback. Is the bumpmapping support broken with
phong at this time? I tried to do a lil investigation and was on the way
to help a mate out with a testscene. ... but bumpmapping seems to be
off - at least for me. ;o)

Phong - w/o bidir


Diffuse - w/bidir


Specular - w/bidir


There is nothing special about the scene, just three meshlights a
background and a leather-bumpmap ...

As you can see the diffuse and specular shader getting faceted if I use
a bumpmap ... any update on this issue is very welcome ... thanx! ;o)


take care
psor

but nick said that bump for phongs is screwed up

interesting finds though psor

Ups, ... thanks mate! I couldn't recall that ... but was wondering
what is going on with my scene ... *LOL*




take care
psor