exterior rendering problem

[opang]

Hello there! I would appreciate if someone could

give me advice on my problems. I'm using final

render for this exterior rendering, lit by FR skylight and a free direct. and although i've set min density = 20, max = 140, RHrays = 128, the image still seems to be lack of depth, especially at the intersection areas where detail shadows should be seen (circled by red). also the shadow produced by the free direct light looks weird (cirble by blue), they shift slightly and just dun look right! i'm using shadow map, bias = 1, size = 4000, sample range = 1 already....

Please help..... X ( web page

[opang]

Sorry I think I'll put it here for your convenience.

[SINNER]

OX

 

0.1 for bias

[mbr]

Some things that may be contributing to that impression:

 

1. The scale of the grass image

2. It's too evenly lit. I'd try raytraced shadows, unless you really need the speed of softshadows. At daytime, with that much light it would most likely look like a raytraced shadow

3. The color of the glass makes it feel like a play house - I doubt anyone would want windows that are tinted that blue.

 

With a few tweaks it will be very nice, and they shouldn't take long at all.

 

Is this Stage-1?

[Ricardo Eloy]

I don't know much about fR, but I agree with mbr about your model being too evenly lit. Lessen the intensity of the fR Skylight, making the direct light (sun) look like the only light source in the scene. Have the light bouncing more, that'll definetly take this flat impression away.

[]

Rick

[Fernando Lino]

Hi everyone,

 

a good ratio for Min and Max is 1/10 and RH=>200, quality 35% prepass 1/1

I think that you need to move the light (it has the same camera's direction.

and for me shadow map is not a good option for this rendering.

if you are using Stage-0 check the properties (turn on GI)

[Victor Erthal]

If tou are using fr stage 1, try to use edge detection. Its a bit slower but this can save a lot of problems.

[jucaro]

Hi, try using the Daylight assembly, and change ur shadows into Advanced Raytrace and change the bias value to .1

 

And don't forget to use the logarithmic exposure control.

[opang]

Thanks for all the suggestions! I've tried some of them and here's the result. I hope you think there is at least a little improvement.

I decreased the skylite and made the direct light a dominant. A bias of 0.1 does really help on the shadow! I can't afford ray traced shadow because this image is only 1/8 of the whole site. With more than 80 houses, a 8000 x 8000 pixel rendering may take forever for me, hee. Yes I'm using stage 1, but I'm not familiar with edge detection... gotta figure it out someday!

Further comments are welcome! I really want to make it nice!

[Arnel]

Without changing the scale of your grass and viewpoint your image still looks like a miniature model.

[Victor Erthal]

Great improvement! I can still see some sploches of light (like on the right side of the building) but with a 8000x8000 render, i guess it will be better to correct in photoshop. :ebiggrin: