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13-Aug-2003 Fake
13-Aug-2003 Fake
Comments: 7
Horo

03.07.2020, 10:28








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Indirect Method IV
Indirect Method IV

            

Indirect Method IV
Description: In terms of image appearance, very similar to the last. However, where the last had a cumultive render time of over 24 hours this image took less than one. The final render under 7 minutes. Renders for the baked lights were lit with Horo's bluegreymoon.hdr as opposed to the room light. The ambient lighting and light bounce being handled by the gels and the camera light. Light bounce also contributed to by the main light gel also casting soft shadows. One gel render only required for the camera, because of FOV. Two for the main light to cover holes in the map. Clearly there are still issues on plain areas of the image, however, where image texture complexity is higher (the chairs) the process seems to work well.
Added by: davidbrinnen
Keywords: davidbrinnen, bryce6.1, HDR, IBL, Horo, bluegreymoon, indirect, light, baked, chairs, experiment, fast
Date: 05.20.2008 20:53
Hits: 2265
Downloads: 77
Rating: 0.00 (0 Vote(s))
File size: 80.4 KB
Previous image: Eagles Landing
Next image: Indirect MKIII



Author: Comment:
Horo
Admin

Join Date: 05.26.2004
Comments: 4561
-

When I first looked, I liked this Mk.IV better than the previous one Mk.III. This so because I'm looking at that bleeding over of colours and the more obvious, the better.

On second thoughts (or beholding), however, I think Mk.III is less unnatural. In reality, the effect is very subtle, here it is very pronounced. Nothing wrong with this since we are slowly approaching to get to what we want. We need to see the effect clearly. Fine-tuning will be at a later stage.

Your method is certainly viable, no doubt about that. Preproduction is still very labour and time intensive, though the final render is swift. Your verve in this endavour is very honorable. Let's hope we finally turn up with a cheaper method yielding results that look like reality. But one thing we see here quite profoundly is that Bryce can be made to create un-bryce-like renders which look as if it could actually do GI.
05.21.2008 19:20 Offline Horo h.-r.h.wernli at bluewin.ch https://www.horo.ch/
davidbrinnen
Admin

Join Date: 01.03.2004
Comments: 2227
-

Thanks, yes I agree about the colours, I did increase the saturation for the camera gel in PSP8 after using gamma correction on it. This might have been the case, but I've done so many varients now I've somewhat lost track. Labour and time intensive is the price and a little bit of brainwork. But hopefully at the end the brainwork will be minimal if there is a set forumula to follow. I ossilate between liking the quality of light being produced to a vague sense of horror at the cludgyness of the process. It is not tidy, precise or neat - but it still sort of works.
05.21.2008 22:34 Offline davidbrinnen mail at davidbrinnen.co.uk http://www.davidbrinnen.com
rashadcarter1
Admin

Join Date: 06.04.2006
Comments: 2622
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My my, we are looking good. I particularly like the way the red and green are bleeding onto the ceiling. There are still some issues but if your progression so far is any indication of what is to come it is just a matter of time before you have a complete control over the work.

I have been so very busy the last few days so I regret not giving feedback sooner.

Workarounds in Bryce are so very costly. I am very proud of the profound growth we are collaborating to achieve and indeed sucessfully finding, but the cost mentally and physically is hard to cope with. I am praying that Bryce gets a real GI that renders at a reasonable speed.

On the issue of saturation, I have found an intersting connection. When working with these high red and green saturations for the walls the immediate assumption is that the light coming off the wall should be the exact same color. but in fact it seems not quite right. If for example the wall is True red at saturation 240, then the light it sheds should be around 120 in saturation, roughly half the saturation of the wall itself. It is because red light is not the only color of light the wall reflects, just the most prominent. If anything, you might want to lower the saturation of the gels a touch.
05.22.2008 05:00 Offline rashadcarter1 rashadcarter1 at aol.com
davidbrinnen
Admin

Join Date: 01.03.2004
Comments: 2227
-

I too would like to see a real GI render for Bryce. I said the same too about HDR and while it is good, the control available to the user is limited. Without the benifit of experimenting with these things its not always obvious what controlls are needed. The saturation issue is a good one, so for example, if a GI renderer were to be implimented, I would want to see plenty of settings to tweak things like the saturation of bounced light and the ammount of bounce and the number of bounces and probably a whole host of things, because like IBL I'm sure once I started using it I'd find I'd want to change things for myself. For example, I think a saturation, colour correcting, hue, contrast, etc, controls for the IBL would have been very useful, considering how time consuming it is to make hdr's it would be useful to tweak them in bryce rather doing them over from scratch. Anyhow, no worries about not getting back. I fear complete control may be some way away, there are a lot of confiugration options in my method and as yet I only have a vague idea of what impact they have on the final image. But it looks doable, if fiddly and I stronly susppect your spot system will yeild higher quality results. The issue there is render time, but we will see.
05.22.2008 08:18 Offline davidbrinnen mail at davidbrinnen.co.uk http://www.davidbrinnen.com
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