Alarm watch

[drybarr]

Hi guys. Just registered here, but ive been watching you and taking notes for a while

I have made an alarm wristwatch, not going to go into details about the product, but I want to make a cool render to blow up on a whole A3.

I want to make the display look realistic, but I need it to be switched off, ie not showing any graphics. I also would like to show that the white finish on the watch itself is glossy. White glossy objects dont seem to be easy..
Also Im not happy with the red LEDs, any suggestions on that?

I have used Micha's velociraptor scene, slightly modified (light intensity)

[garrett_jsaa]

Alarm watch

Looks very nice!

I agree the LEDs need work. Have you tried an emissive material? You could use a texture map under "emissive" to control the brightest point of the LED, or even let the entire LED shine.

[garrett_jsaa]

Alarm watch



Is this what you might use?

[Micha_cg]

Alarm watch

Last I have rendered a computer mouse with LED lights.
So I would assign a red colored glass material with blurry refraction to your LED surface. Behind this, I would place an emitter material. Distance and shape of the emitter change the look of the LED. At the end it should look like Garretts texture.

[drybarr]

Alarm watch

Thank you guys, I will try that. The LEDs now are a shape with a refractive specular material, and inside it another shape with an emitter, multiplier 3. They turned out better in this picture, but I really need the watch to be white and a have a fairly light scene, unlike this one.

Do you have any tips on the display or the white glossy finish? Im going to try and assign a testured material for the ground mat, see how that turns ont in the reflections.

[Jean-Paul Paloux_cg]

Alarm watch

notthing to do with the render, but is there going to have a glass on top of the leds ? because dust could come in and stay

Sometimes you can also use Photoshop... It's not a written law that everything must be done inside the box of the render window. Don't worry about this comment, I'm not saying that I don't try to do everything in the render window either

Even Micha is touching the curves post render instead of tweaking the lights and restarting a new render.

[garrett_jsaa]

Alarm watch

I used no texture. Just an LED shaped object with red emitter and a little transparency. One object only.

I like the green LEDs, but I am confused by the shadows under them. Anyone know what's going on there?

[Micha_cg]

Alarm watch

The LEDs now are a shape with a refractive specular material, and inside it another shape with an emitter, multiplier 3. ...

I would use a small emitter inside and only less blury refraction, so that LED dosn't looks like a constant colored object. (I'm not sure you have done it - enable "affect shadow" at the refraction layer. It helps to get green light through the glass without caustic calculation.)

I don't understand right: which effect do you want to get for the black display? Any example photos?

The strange shadow looks like the typical textured emitter bug. Is the emitter object inside the LED textured?

[drybarr]

Alarm watch

I tried the LED settings recomended by you and came up with this:




For the other things, wait for another post soon Im working on that

edit: oh yeah, i dont seem to have that green LED scene leftt on my harddrive, but I think they were textured with "acolor" and a multiplier 2-3 because I couldnt get descent intesity from the default settings.

[Jean-Paul Paloux_cg]

Alarm watch

I find your leds nicer than those of the first post. good improvement !
Jp

[garrett_jsaa]

Alarm watch

I agree, these are a big improvement. I just did an image search for LED and it seems that despite their brightness, they have a highlight, like yours. But mostly the highlight seems slightly yellow:



Though this looks pink:



Also you could post process a little glow. That or model the air molecules!

[garrett_jsaa]

Alarm watch

I am curious about JP's earlier comment. Will there be a cover over the LEDs? They seem long and exposed.

[drybarr]

Alarm watch

OK made a screen. I wasn't sure how I wanted it, just thought it didn't look like a display in the first post.. does this look better? Im not sure about the random reflelections on the right side, i kinda like them but at the same time.. i dunno Its 2 reflection layers, fresnel, one sharp and one real blury. Texture on a surface beneath it.



I didn't intend to have a glass cover (although perhaps I should, I see if I give it a shot). I wouldnt worry about dust getting stuck because it will be rather easy to blow it off because of the cut through shape there. But yeah a cover would help protecting leds




This pic shows it a little better. Also, do you know if I can get the brushed metal look to flow with the shape of the surface holding the LEDs? It looks weird now, it changes direction close to the rounded edge.



And the wristband bump looks horrible will have to make a new one with better resolution

How can I get the more yellow burnt out highlights on the LEDs?

[Micha_cg]

Alarm watch

Screen: usage three planes. First plane is the clear display sheave - material: single reflection layer with fresnel. Behind the first plane place a plane with small squarish openings.
Third plane: material with an emitter layer (50% transparency) and diffuse layer. The diffuse layer catch the environment light, the emitter layer get a LED texture. -> but I run in a (old) textured emitter bug.

Creation of the LED texture: I have tested to use many small pointlights, but the render engine slow down. So I tryed to create a LED texture. Best way I find: set Vray in PPT mode and ... look at my screenshot. The PPT mode (both GI engines at LC and LC at "path tracing") works much faster than standard raytracing here. -> After some more test I see: the slow down is only in adaptive mode -> posted at the bug section.



Hmm, two bugs. So, here my final soultion for now: avoid the adaptive QMC and you can use point lights. Here the rhino file and a rendered example. Advantage of the pointlights: easy to control. Rendertimes are faster as expected.



Brush Metal: please look at user tutorial M

[drybarr]

Alarm watch

Thanks Micha. Funny that you found a software bug, although I didnt quite understand what it was about

Brushed metal: The mat i used is from the tutorial, bump and texture, and it's awesome. But what i saw asking for was, is it posible to sort of bend the material? So that it the scratches sort of follow the shape of my object?

Anyway Im out of time on this project and here's the printed board: