I need help with Glass material

[rampally]

I am rendering A interior ....with curtain walls.... you can see  images
however problem is when i am rendering curtain wall with glass material  with no thickness to glass  and ( Thin (no refraction)) no i am able to render it with Sunlight in side hall.
But when i am rendering with 10mm thickness to my glass And turning Off  ( Thin (no refraction)) i couldn't able to see sunlight in side hall ..can any one  help me what i am do wrong here
i want sunlight in  hall ..at the same time i want my glass some thickness TOO...Can any one help  me here

[Ludvik Koutny]

If you do not use thin, then your windows need to have some thickness. That means two faces, front and back, not just one. Otherwise, Corona will think that anything behind that window is full of glass, not air ;) And that glass then bends the light from sun away.

[rampally]

If you do not use thin, then your windows need to have some thickness. That means two faces, front and back, not just one. Otherwise, Corona will think that anything behind that window is full of glass, not air ;) And that glass then bends the light from sun away.

Hi Rawalanche
i have done same thing when i use thin with single plane there is no problem....with sun light...as i have shown in image
however when i  use two faces (or some  thickness ) with no thin on....sun light could not pass through glass........
here what i want is sunlight in  hall  with some thickness to glass with thin OFF

[Ludvik Koutny]

Then you have either some more faces there, possibly coplanar ones. Or maybe you have inverted normals.

[maru]

You are not using the "Caustics (slow)" option, huh?

[rampally]

Then you have either some more faces there, possibly coplanar ones. Or maybe you have inverted normals.

No coplanar  however one with portal and again it is faraway form this glass.......No inverted normals

[rampally]

You are not using the "Caustics (slow)" option, huh?

yes i tried it BUT No use....

[maru]

Can you try reproducing this "bug" in a more simple scene and sharing it? I tried and all kind of glass let sunlight through. Only when caustics are enabled there are some problems.

[rampally]

Can you try reproducing this "bug" in a more simple scene and sharing it? I tried and all kind of glass let sunlight through. Only when caustics are enabled there are some problems.

Ok maru I will

[filipskrzat]

if there is nothing behind your windows, why u even make glass ?
Nothing from inside reflect in them.

[omeso100]

hi everyone im working on the  project "Test 2" above
what i'm trying to achieve high glossy doors like whats on jpg A and still retaine white has the diffuse colour.  timber veneer  to have a finish like jpg B could someone please advice

[Juraj]

You have to take into account your reference is from angle, therefore fresnel makes the specular reflection more prominent.

In real-life, this is coated material. It's semi-glossy rather rough (vynil/paper/woodchip/etc..) surface, spraypainted with glossy coat (usually  Polyurethane in 1 to 3 layers).
So more complex scenario is to do blend material with each having correct reflective curve (or higher IOR for coat in simpler way).

Simplest is to simply rise the fresnel IOR from 1.52 to to something like 2-3.

[filipskrzat]

Juraj I have a question for you about reflections.

How do you make reflections in your renders so clear and sharp?

e.x. here https://m1.behance.net/rendition/modules/66515785/hd/eddde03d5346f3d71974b71ab3f39cb4.jpg

Is this matter of render settings, render time (in corona) or smth else?

[rampally]

Juraj I have a question for you about reflections.

How do you make reflections in your renders so clear and sharp?

e.x. here https://m1.behance.net/rendition/modules/66515785/hd/eddde03d5346f3d71974b71ab3f39cb4.jpg

Is this matter of render settings, render time (in corona) or smth else?

Use portals where ever necessary .... it will take care about 50% of it   remaining 50% is to cook it some more time..HAHAHA

[rampally]

if there is nothing behind your windows, why u even make glass ?
Nothing from inside reflect in them.

its Only example