OTOY Forums

madcoo wrote:Hi guys!

Still practising photorealism...

- Modelled in Sketchup
- UV-Unwrapped and UV-Mapped in Blender
- Stopped rendering after 5000 spp
- I also used the Alpha Render technique to get rid of the background

I'm working on a wooden surface on which the phone will rest.

Please comment!

Congratulations... it looks great

I've never done a "UV-Unwrapped and UV-Mapped in Blender" do you know any tutorial that can explain the steps?
Seems like something worth learning.

Cheers

tomas_p wrote:Instead of youre bitmap with display view, put a pure white 32 bit HDR image an instead power slider of this hdr youre bitmap with dark spaces and make gama on hdr higher....
The resolution of iPhone display is 480x380px. And at you render are all pixels coupled all in all without dark spaces.
Instead of youre bitmap with display view, put a pure white 32 bit HDR image an instead power slider of this hdr youre bitmap with dark spaces and make gama on hdr higher....

Sorry but I'm just making sure I understand what you're talking about...

So...
1) I should use a display image that actually shows the "pixels" of the display screen, for a more realistic look (that's what you're talking about regarding the "dark spaces"?)
2) Use a HDRI pure white image in the "diffuse" setting (instead of the display screen)
3) use the display screen image in the power slider of this HDRI image
4) raise the HDRI's gamma
=> this should look like the screen is lit up.

Is this correct?
Thanks!

Jakerlund wrote: Congratulations... it looks great
I've never done a "UV-Unwrapped and UV-Mapped in Blender" do you know any tutorial that can explain the steps?
Seems like something worth learning.
Cheers

Definitely worth learning !!!
I heard Blender is one of the most powerful tools for uv-unwrapping.
I don't know if this is true, but personnaly I got used to it and I couldn't use anything else now.

I learnt UV-Unwrapping with Blender here : http://www.siteduzero.com/tutoriel-3-37 ... ender.html
It's in French but there are plenty of self-explanatory images.

It's pretty easy:
- Split your 3D-View screen in two
- On the right-hand side (at least that's what I do), change the 3D-View to the UV-View. A square will appear -> that's the UV-Map, which is empty for now
- In the 3D-View screen select your model and hit "Tab" to go to Edit Mode.
- Select the edges that will "cut" your model (imagine you're "peeling the skin off your model").
- Still in the 3D-View screen select all the the model and hit "U" => Unwrap
- You'll see the result in the UV window

This is just a quick sum-up, but I hope it will get you on the right track.
Start practising with a cube or any other "simple" shape first.

One ESSENTIAL concept to understand in UV-Unwrapping is the following:
Once you have unwrapped your UVs, you can re-arrange them, pull them, twist them, do whatever you want with them : it won't affect your model.
The most important thing is to unwrap your model in a logical way. There are no strict rules about this. For example if I had to unwrap a character's face, I would put the front of the face in the middle, the ears on either side, the rest of the skull on top of the face...

I hope this helps, if you got questions just ask.

i like The model and mapping but i don't like the reflection on the scren!!!

Daniel79 wrote:i like The model and mapping but i don't like the reflection on the screen!!!

Me neither, i have to admit !!!


I wanted to have sharp reflections on it, but because the focus of the camera is so close to the phone, it blurs out everything around it, including the environment map - hence the blurry reflections

I don't know if there's a way round this...
Any help would be much appreciated!!!

hi madcoo

Sorry for my bad English.

all steps was good comprehented

Dark spaces are the physical grid in which are the physical pixels. Go close to monitor or screen and you see, that each pixel on phisical screen are isolated on dark background.

I think the screen on you iPhone should be under a glass for more realistic result.

I'm glad I understood it all, and don't be sorry about your English : it's very kind of you to try and help me !!!
(and my English isn't perfect either)

And yes indeed, I should have put the display underneath a glass...

Well, if I really want this phone to look real, I'll have to work some more hours on it, then !!!
But hey, as they say : "No pain - no gain" !!!

Awesome thansk Thomas I will try this


Peter