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This is necessary to avoid this forum being flooded by spam.
Important notice: All artwork submitted on our public gallery forums gallery forums may or may not be used by OTOY for publication on our website gallery.
If you do not want us to publish your art, please mention it in your post clearly. (put a very red small diagonal cross in the left right corner of the image)
Any images already published on the gallery will be removed if the original author asks us to do so.
We recommend placing your credits on the images so you benefit from the exposure too, and use a minimum image width of 1200 pixels, and use pathtracing or PMC. Thanks for your attention, The OctaneRender Team.
For new users: this forum is moderated. Your first post will appear only after it has been reviewed by a moderator, so it will not show up immediately.
This is necessary to avoid this forum being flooded by spam.
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BKEicholtz
- Posts: 80
- Joined: Tue Dec 07, 2010 11:14 pm
You are off to a nice start. It looks like you are getting some nice, soft shadows with the daylight system. Did you modify the default settings to achieve that?
ASRock Extreme11 | i7 3970x 5.0 Ghz | 32gb RAM | (4) EVGA SC Titans
some parts of image is very good. But need more lighting effect of raw diffuse textures. Woods expecially
Octane For Cinema 4D developer / 3d generalist
3930k / 16gb / 780ti + 1070/1080 / psu 1600w / numerous hw
3930k / 16gb / 780ti + 1070/1080 / psu 1600w / numerous hw
Do you mean you are using a HDRI? How do you get real shadows with it?
AMD FX8350 8 cores. 16GBs RAM
GTX690
Win8 64.
GTX690
Win8 64.
Yes, the light coming from HDRI image.PAQUITO wrote:Do you mean you are using a HDRI? How do you get real shadows with it?
The trick is to overexpose the sun disk in photoshop.
It's possible to correct the gamma of the HDRI image, but for value over 1.3/1.4, the color casting become too strong.
For some reason, the gamma adjustment for some HDRI won't work for value not equal to 1.0 or 2.0.
I need to investigate...
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gordonrobb
- Posts: 1247
- Joined: Sat Mar 16, 2013 9:08 am
I'm trying to understand this. I have a nice HDR environment, and I want to have it light my object, and cast a shadow. I load it inot Photo Shop, but can only change the exposure of the whole thing. Can you give me a clue in how you adjusted the exposure of only the sun in your hdr?noldo wrote:Yes, the light coming from HDRI image.PAQUITO wrote:Do you mean you are using a HDRI? How do you get real shadows with it?
The trick is to overexpose the sun disk in Photoshop.
Windows 8 Pro | i7 3770 OC | 32 GB Ram | Single Titan (plus Black Edition on Order) | Octane Lightwave |
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LudovicRouy
- Posts: 216
- Joined: Sat Apr 03, 2010 5:05 pm
- Location: FRANCE
- Contact:
I've noticed that the bricks on the right aren't tiled correctly, anyway that's a good render.
I have a few HDRI:s from http://www.cgskies.com/noldo wrote:Yes, the light coming from HDRI image.PAQUITO wrote:Do you mean you are using a HDRI? How do you get real shadows with it?
The trick is to overexpose the sun disk in photoshop.
It's possible to correct the gamma of the HDRI image, but for value over 1.3/1.4, the color casting become too strong.
For some reason, the gamma adjustment for some HDRI won't work for value not equal to 1.0 or 2.0.
I need to investigate...
Those cast pretty nice shadows, but I do need to adjust the gamma a bit for them to show up. Haven't tried them in Octane, but I guess it's pretty much the same as in other renderers.
http://www.cgskies.com/resources_tutorial_rendering.php
Here they actually show how gamma adjustment effects the image. With the default the shadows are very hard to see.
The price is pretty reasonable considering that the images are up to 15000x7500 resolution.
Win 7 64 | Geforce GTX780 | i7 3930k| 32GB
Open the hdri image in photoshop, select with the elliptical marquee tool the sun disk, adjust the exposure of the selection, save the hdri, then open in octane render.gordonrobb wrote:I'm trying to understand this. I have a nice HDR environment, and I want to have it light my object, and cast a shadow. I load it inot Photo Shop, but can only change the exposure of the whole thing. Can you give me a clue in how you adjusted the exposure of only the sun in your hdr?noldo wrote:Yes, the light coming from HDRI image.PAQUITO wrote:Do you mean you are using a HDRI? How do you get real shadows with it?
The trick is to overexpose the sun disk in Photoshop.
Just pay attention to no overexpose the hdri, otherwise octane not take account the sun.
Proceed with one stop (1.0) for every adjustment of the hdri, and in octane deselect & select the importance sampling flag in texture environment (sometimes gets stuck).
Another aid is to fade the selection before adjusting the exposure of the hdri (some pixel, depending on the dimension of the sun), this influence the definition of the shadow.
Good work!