PDA

View Full Version : What could I do to improve this scene?



Kanephan
04-15-2005, 12:29 AM
http://img54.echo.cx/img54/3922/render35nc.jpg

I'm actually very pleased with the bulb part (tell me what you think!), but the reflection on the metal part of the lightbulb is trash, and the shadow on the ground isn't very accurate.

Through some stroke of genius/gut feeling I added a dim area light right under the light bulb. I'm not too sure if it had any effect, but I suppose you should take it into consideration.

Breh
04-15-2005, 12:41 AM
Some time ago a very talented CGI artist here in Germany advised me not to try and do "everything" in Lightwave and added that it's production wise more effective to render out images (just like the one you created) and load them into the compositing program (AURA, After FX etc.) and do your tweaking there.


-Herb
[email protected]

Surrealist.
04-15-2005, 12:28 PM
http://img54.echo.cx/img54/3922/render35nc.jpg

I'm actually very pleased with the bulb part (tell me what you think!), but the reflection on the metal part of the lightbulb is trash, and the shadow on the ground isn't very accurate.

Through some stroke of genius/gut feeling I added a dim area light right under the light bulb. I'm not too sure if it had any effect, but I suppose you should take it into consideration.

This photo is not representitive of what you have as the contrast seems a bit too much.

A good idea would be to give more details on what you have done so far to get where you are.

Some things to check:

Metal reflection:

If it is set to environment there is nothing there to reflect, you have to give it an image to simulate something.

Shadows:

What type are you using?

Trace Shadows or Shadow maps?

The most realistic are trace shadows from Area Lights

Just some very basic basic things.

Beyond that, more info, a snap shot of the Layout scene with some settings will help and people here can get you going.

Kanephan
04-15-2005, 01:16 PM
It's all ray traced shadows. I took some snaps of the surface settings and layout

http://img53.echo.cx/img53/6268/rendersettings9ra.jpg

http://img53.echo.cx/img53/2613/surfacesettings6mj.jpg

mattclary
04-15-2005, 01:18 PM
I highly suggest buying F-Prime, you will learn alot about surfacing and lighting while using it. I could have never done this without it. I think this has some of the same challenges you face with your piece.

Kanephan
04-15-2005, 01:21 PM
Now that I've realized what you said about the metal reflection, all I'm really concerned with is the shadow. I want to make it a little softer. Generally I'm very satisfied with the bulb.

A snap of the light settings:

http://img113.echo.cx/img113/2589/lightsettings8vh.jpg

Kanephan
04-15-2005, 01:23 PM
That's really nice Matt. Only problem is it doesn't quite "glow" as much as it just projects light onto the floor.

The metal parts though are almost photorealistic. Nice.

Kanephan
04-15-2005, 01:25 PM
The thing about F-Prime is that I'm not sure my computer can handle it. I'm not in the industry, and I don't have a graphics computer. I'm just a 15 year old kid with a hobby like that other guy. I don't think my 512 mbs of RAM could stand the constant power F-Prime requires.

mattclary
04-15-2005, 01:34 PM
Your machine would probably handle it ok. If you can swing the cash, it will greatly improve your game. With F-Prime, you could use radiosity in a timely render, and I think you would get a much better look. FYI, I'm just a hobbyist also. :)

mattclary
04-15-2005, 01:47 PM
Also, IMO, the "glow" is really going to be a function of contrast. Take a picture of a lit bulb out in daylight and it won't appear to glow (or not much). Take it in a darkened room, and all you will see is a white blob. The trick is to get it "glowy" and not be a white blob. If you render it against a black background, and it doesn't look like a blob, observers will immediately dismiss it as CG. If you are going for photo-real, you will need to make sure the contrast matches what you would see in similar conditions in the real world.

Kanephan
04-15-2005, 02:11 PM
Oh definatey, but my bulb is supposed to be a very dim incandesent light that would hardly light up more than a foot radius.

I was talking about the glow of your sabre. I know in reality it wouldn't glow, but I figured you were trying to replicate the effect in the movies?

Kanephan
04-15-2005, 03:10 PM
OK I think I've improved it significantly. The only problems now are blurring the shadows (which I would like to do in lightwave but don't know how) and...well the whole scene seems a little "washy". I don't know what's going on with the light. Perhaps my volumetrics are too high. Seems kinda foggy.

http://img109.echo.cx/img109/8571/render63wu.jpg