INTERIOR LIGHTING TUTORIAL_for beginners

This was actually my WIP tutorial at Asgvis and would like to migrate here. I know this one will be very useful especially to the new ones who want to explore Vray sketchup. This tutorial was doen using vray Sketchup1 the old version. I hope I could update this as we go on.]

Here is

I am making an attempt to make a tutorial using simple image from displacement to bump, doing some complicated materials to hopefully playing on emissive lighting. I will also explore using double reflections to achieve good metals and other materials. so bear with this simple set up and materials which you can find on typical free sketchup.
typical screen scene.



im attaching the scene first here. rendered in clay style. In order to render achieve clay render you need to tick override materials in the global switches. this scene has been rendered using the default setting except using the viewport size of 958X619.


also im attaching the link for the model so you can do it together with me.

rapidshare.com rapidshare.comWIP.rar.html

Sky multiplier was set from 1 to 4 in this render to allow more light to penetrate inside the room. Of course adjusting the Fstop value of the camera, or increasing the ISO or decreasing the shutters speed can lighten our scene. but as for now i dont want to touch the camera yet so not to confuse especially the new guys.

the shadows are still sharp and the contrast between dark and light tones is just too much.

If I increased the Sky multiplier or lighten up my camera i will have alot of blotches, especially if im using IR Render engine as my primary RE. This was actually one my frustration before. Adding another Vray rectangular outside will help to fill lights inside the interior. I added a vrectangular light (invisible) with strenght of 500.

*tip1* you have to place the rectangular light a certain distance from the wall to avoid burnout of certain walls near the window.
*tip2* save your Light catche, photon map or Ir map and reload them if you are experimenting with light. once you reloaded the saved map, vray will just render your scene.
*tip3* use track mouse while rendering, and point your mouse to the areas you wanted to see first. if you dont like the result, jsut cancel rendering and adjust those things you wanted to do.

If I increased the Sky multiplier or lighten up my camera i will have alot of blotches, especially if im using IR Render engine as my primary RE. This was actually one my frustration before. Adding another Vray rectangular outside will help to fill lights inside the interior. I added a vrectangular light (invisible) with strenght of 500. you can use 200-300 also.

multiplier @500 i think is a bit too much but it any case just lower it.

*tip1* you have to place the rectangular light a certain distance from the wall to avoid burnout of certain walls near the window.
*tip2* use track mouse while rendering, and point your mouse to the areas you wanted to see first. if you dont like the result, jsut cancel rendering and adjust those things you wanted to do.

ok i lower the multiplier of rect light up to 350 and decrease the noise threshold (QMC Sampler) to lessen the noise. I dont really recommend the lowering of noise threshold when still checking the light as it will slow down the rendering process signinficantly. Also I saved my IR and LC map and reloaded them again on this rednering to speed up my workflow.

to add more drama i added the blinds

but oh no what are those noisy stuff on the corner of the wall.
I call them "Blindspot". because i put the window blind, the light could not penetrate those area (sorry if i dont know how to explain clearly, bear with me here, but hopefully with the next step i could explain it more clearer). when there is blind spot like that, you will have either splotches or noisy stuff. OK what is the solution then? increasing the samples, hsph subdivison, reducing the noise??? well any of these thing will increase render time, it may help or completely obliterate them but i bet your rendering time will be much longer. I ask about on this forum about this problem but no one responded to me.. yes no one.
trying to understand how it works. i will share now a solution which i found through experimentation.
By putting another invisible Rectangular light (as fill or ambient light) with low multiplier behind the camera, you could actually reach those what i called "blind spots".

the above render, i turned off the rectangular light on that window (since its useless now because of the window blind) and created a fairly huge rectangular light behind the camera with multiplier of 2.5. Wow rendering time is much faster than the other image before.

bossing, idol, master... ano pa tatawag ko. wala na talaga ako masabi sa mga tinuturo mo samin at tulong. salamat po talaga sa mga shineshare mo. galing. keep posting. thanks.

sana naman hindi sasabihin ni djok djok na ang forum ay payabangan ngan lang hindi tinutruan yung mga bago.

Haaay.......thanks master sa tutorial na to malaking bagay to sa amin

salamat naman at marami palang matutulungan. sige sa susunod update lo yung Vray1.5 naman. old version kasi to. i do beleive yung new may pagkaiba ng kaunti.

wow sir! thanks...very useful to...mabuhay ka sir!

thnx!

maraming salamat sa inyo ser!

thanks for the good tutorial master nomer... that why good people become legends because they spread their knowledge..they leave a legacy...

wow! chief ang galing tlaga, hanep!

salamat sa tutorials nyo tlga nawiwiwli nako dito sa cgpinoy!!!