Unclear Iray Renders

oconnordavid16

No matter what I try I just cannot get a clear render, they all come out unclear like they are full of little dots but if I render in 3Delight it comes out fine but then none of the lights work and the windows are messed up.

Can anyone help? Ho do I get a clear Iray render? 

 

Fishtales

Looks like the render hasn't completed so some things to look at.

https://renderguide.com/daz3d-render-settings/

http://docs.daz3d.com/doku.php/public/software/dazstudio/4/referenceguide/interface/panes/surfaces/shaders/iray_uber_shader/shader_general_concepts/start

http://docs.daz3d.com/doku.php/public/software/dazstudio/4/referenceguide/interface/panes/render_settings/engine/nvidia_iray/tone_mapping/start

It could also be caused by too much gloss on the car, lower the Glossiness, or the main light is too strong which you can reduce by lowering the Lumen or compensate by changing the Tone Mapping settings.

Hylas

You need to render longer. Go to Render Settings -> Progressive Rendering and set Max Time to 0 to disable the timer (it's 2h by default.)

Richard Haseltine

How is the scene lit? Is it in an enclosed space or is it open?

oconnordavid16

Richard Haseltine said:

How is the scene lit? Is it in an enclosed space or is it open?

Its open and only lighting is the car lights and camera headlamp (set to very low) as its meant be darkish/early morning  

oconnordavid16

Hylas said:

You need to render longer. Go to Render Settings -> Progressive Rendering and set Max Time to 0 to disable the timer (it's 2h by default.)

 will try this tonight so thanks :) 

oconnordavid16

Fishtales said:

Looks like the render hasn't completed so some things to look at.

https://renderguide.com/daz3d-render-settings/

http://docs.daz3d.com/doku.php/public/software/dazstudio/4/referenceguide/interface/panes/surfaces/shaders/iray_uber_shader/shader_general_concepts/start

http://docs.daz3d.com/doku.php/public/software/dazstudio/4/referenceguide/interface/panes/render_settings/engine/nvidia_iray/tone_mapping/start

It could also be caused by too much gloss on the car, lower the Glossiness, or the main light is too strong which you can reduce by lowering the Lumen or compensate by changing the Tone Mapping settings.

will have a look at these thanks :)  

Richard Haseltine

oconnordavid16 said:

Richard Haseltine said:

How is the scene lit? Is it in an enclosed space or is it open?

Its open and only lighting is the car lights and camera headlamp (set to very low) as its meant be darkish/early morning  

You might want to add an HDR and then adjust the Tone Mapping settings (especially gamma) to get the look you want.

oconnordavid16

Richard Haseltine said:

oconnordavid16 said:

Richard Haseltine said:

How is the scene lit? Is it in an enclosed space or is it open?

Its open and only lighting is the car lights and camera headlamp (set to very low) as its meant be darkish/early morning  

You might want to add an HDR and then adjust the Tone Mapping settings (especially gamma) to get the look you want.

How would I do that?  

oconnordavid16

oconnordavid16 said:

Hylas said:

You need to render longer. Go to Render Settings -> Progressive Rendering and set Max Time to 0 to disable the timer (it's 2h by default.)

 will try this tonight so thanks :) 

this worked, its not looking better but is taking a very long time, have to stop it now as can't leave the pc on when going to sleep or going out  

Hylas

An outdoor render should not be taking this long.

In Render Settings -> Environment, make sure Environment Mode is set to Dome & Scene.

Drop an appropriate HDRI in Environment Map. Here's a free one that might suit you: https://hdrihaven.com/hdri/?c=night&h=shanghai_bund

Control intensity and orientation of the HDRI with Environment Intensity and Dome Rotation.

In Render Settings -> Tone Mapping, for night/dusk renders I usually increase ISO to 200-400. See if that helps.

 

oconnordavid16

Hylas said:

An outdoor render should not be taking this long.

In Render Settings -> Environment, make sure Environment Mode is set to Dome & Scene.

Drop an appropriate HDRI in Environment Map. Here's a free one that might suit you: https://hdrihaven.com/hdri/?c=night&h=shanghai_bund

Control intensity and orientation of the HDRI with Environment Intensity and Dome Rotation.

In Render Settings -> Tone Mapping, for night/dusk renders I usually increase ISO to 200-400. See if that helps.

 

 

not having much luck even with doing this, can't seem to get the image right and the render is still taking ages so long that ive had stop it as couldn't leave the pc on when out out going sleep, there is alot of emmisve lighting with the car lights

oconnordavid16

Looks like I will haver to put up with unclear renders as noting I try seems to work, 9 hours and it still is only 60% 

Fishtales

Can you attach the scene file so that someone can try and replicate the scene if they have the elements?

ps2000

Do you render with your cpu?

That can take a long time, especially if it's only a mid-range cpu.

For iray-rendering you should use a halfway decent nvidia-gpu with enough ram (8gb), it renders several times faster than a cpu.

oconnordavid16

Fishtales said:

Can you attach the scene file so that someone can try and replicate the scene if they have the elements?

Don't think id be able to d othat, is quite alot of emiisve lighting in it which i've heard could slow renders down  

oconnordavid16

ps2000 said:

Do you render with your cpu?

That can take a long time, especially if it's only a mid-range cpu.

For iray-rendering you should use a halfway decent nvidia-gpu with enough ram (8gb), it renders several times faster than a cpu.

Not sure actually, how do I check that?  

Fishtales

oconnordavid16 said:

Fishtales said:

Can you attach the scene file so that someone can try and replicate the scene if they have the elements?

Don't think id be able to d othat, is quite alot of emiisve lighting in it which i've heard could slow renders down  

 Create a post; click on Attach File at the bottom; Choose File and then go to where you have saved the scene file and double click on it; post comment.

ps2000

oconnordavid16 said:

ps2000 said:

Do you render with your cpu?

That can take a long time, especially if it's only a mid-range cpu.

For iray-rendering you should use a halfway decent nvidia-gpu with enough ram (8gb), it renders several times faster than a cpu.

Not sure actually, how do I check that?  

Go under Render > Render Settings > Advanced

There under Hardware should be a list of render devices. Normally your cpu and gpus are listed there. The box before cpu should be unchecked to disable your cpu as rendering device. 

Even a slower gpu renders several times faster than a fast top of the line cpu (in case of iray). So it's definitely worth looking into. But make sure to get a gpu with enough ram (at least 8gb). Should your scene be too big it doesn't render or falls back to the cpu as rendering device. 

What cpu and gpu do you have?

Hyelioa

did you try modifying the shader?  Looks like it maybe to glossy?

oconnordavid16

ps2000 said:

oconnordavid16 said:

ps2000 said:

Do you render with your cpu?

That can take a long time, especially if it's only a mid-range cpu.

For iray-rendering you should use a halfway decent nvidia-gpu with enough ram (8gb), it renders several times faster than a cpu.

Not sure actually, how do I check that?  

Go under Render > Render Settings > Advanced

There under Hardware should be a list of render devices. Normally your cpu and gpus are listed there. The box before cpu should be unchecked to disable your cpu as rendering device. 

Even a slower gpu renders several times faster than a fast top of the line cpu (in case of iray). So it's definitely worth looking into. But make sure to get a gpu with enough ram (at least 8gb). Should your scene be too big it doesn't render or falls back to the cpu as rendering device. 

What cpu and gpu do you have?

CPU ----- AMD Ryzen 7 2700X Eight-Core Processor     3.70 GHz 

GPU ----- NVIDIA GeForce GTX 1660 SUPER 

 

 

oconnordavid16

Hyelioa said:

did you try modifying the shader?  Looks like it maybe to glossy? 

 

Dont think I used any shaders  

oconnordavid16

Fishtales said:

oconnordavid16 said:

Fishtales said:

Can you attach the scene file so that someone can try and replicate the scene if they have the elements?

Don't think id be able to d othat, is quite alot of emiisve lighting in it which i've heard could slow renders down  

 Create a post; click on Attach File at the bottom; Choose File and then go to where you have saved the scene file and double click on it; post comment.

I'm using alot of differeant things in the scence including stuff not in this particuklar image and things that other people may not have such as th  cars etc

ps2000

oconnordavid16 said:

ps2000 said:

oconnordavid16 said:

ps2000 said:

Do you render with your cpu?

That can take a long time, especially if it's only a mid-range cpu.

For iray-rendering you should use a halfway decent nvidia-gpu with enough ram (8gb), it renders several times faster than a cpu.

Not sure actually, how do I check that?  

Go under Render > Render Settings > Advanced

There under Hardware should be a list of render devices. Normally your cpu and gpus are listed there. The box before cpu should be unchecked to disable your cpu as rendering device. 

Even a slower gpu renders several times faster than a fast top of the line cpu (in case of iray). So it's definitely worth looking into. But make sure to get a gpu with enough ram (at least 8gb). Should your scene be too big it doesn't render or falls back to the cpu as rendering device. 

What cpu and gpu do you have?

CPU ----- AMD Ryzen 7 2700X Eight-Core Processor     3.70 GHz 

GPU ----- NVIDIA GeForce GTX 1660 SUPER 

 

You should unselect the cpu and cpu fallback and then test if it renders. It could be that it falls back on only the cpu if the scene is bigger (you have only 6gb ram after all)

If it doesn't render with only the gpu try making thinks invisible that are not in the view of the camera (this way you save some ram and the card can maybe render the scene.

oconnordavid16

ps2000 said:

oconnordavid16 said:

ps2000 said:

oconnordavid16 said:

ps2000 said:

Do you render with your cpu?

That can take a long time, especially if it's only a mid-range cpu.

For iray-rendering you should use a halfway decent nvidia-gpu with enough ram (8gb), it renders several times faster than a cpu.

Not sure actually, how do I check that?  

Go under Render > Render Settings > Advanced

There under Hardware should be a list of render devices. Normally your cpu and gpus are listed there. The box before cpu should be unchecked to disable your cpu as rendering device. 

Even a slower gpu renders several times faster than a fast top of the line cpu (in case of iray). So it's definitely worth looking into. But make sure to get a gpu with enough ram (at least 8gb). Should your scene be too big it doesn't render or falls back to the cpu as rendering device. 

What cpu and gpu do you have?

CPU ----- AMD Ryzen 7 2700X Eight-Core Processor     3.70 GHz 

GPU ----- NVIDIA GeForce GTX 1660 SUPER 

 

You should unselect the cpu and cpu fallback and then test if it renders. It could be that it falls back on only the cpu if the scene is bigger (you have only 6gb ram after all)

If it doesn't render with only the gpu try making thinks invisible that are not in the view of the camera (this way you save some ram and the card can maybe render the scene.

 

Does not render at all then  

oconnordavid16

ps2000 said:

oconnordavid16 said:

ps2000 said:

oconnordavid16 said:

ps2000 said:

Do you render with your cpu?

That can take a long time, especially if it's only a mid-range cpu.

For iray-rendering you should use a halfway decent nvidia-gpu with enough ram (8gb), it renders several times faster than a cpu.

Not sure actually, how do I check that?  

Go under Render > Render Settings > Advanced

There under Hardware should be a list of render devices. Normally your cpu and gpus are listed there. The box before cpu should be unchecked to disable your cpu as rendering device. 

Even a slower gpu renders several times faster than a fast top of the line cpu (in case of iray). So it's definitely worth looking into. But make sure to get a gpu with enough ram (at least 8gb). Should your scene be too big it doesn't render or falls back to the cpu as rendering device. 

What cpu and gpu do you have?

CPU ----- AMD Ryzen 7 2700X Eight-Core Processor     3.70 GHz 

GPU ----- NVIDIA GeForce GTX 1660 SUPER 

 

You should unselect the cpu and cpu fallback and then test if it renders. It could be that it falls back on only the cpu if the scene is bigger (you have only 6gb ram after all)

If it doesn't render with only the gpu try making thinks invisible that are not in the view of the camera (this way you save some ram and the card can maybe render the scene.

 

Does not render at all then  

Fishtales

oconnordavid16 said:

Fishtales said:

oconnordavid16 said:

Fishtales said:

Can you attach the scene file so that someone can try and replicate the scene if they have the elements?

Don't think id be able to d othat, is quite alot of emiisve lighting in it which i've heard could slow renders down  

 Create a post; click on Attach File at the bottom; Choose File and then go to where you have saved the scene file and double click on it; post comment.

I'm using alot of differeant things in the scence including stuff not in this particuklar image and things that other people may not have such as th  cars etc

That doesn't really matter but it will give people an idea of your render settings and they can substitute whatever they have for what is missing. 

Fishtales

oconnordavid16 said:box before cpu should be unchecked to disable your cpu as rendering device

 

You should unselect the cpu and cpu fallback and then test if it renders. It could be that it falls back on only the cpu if the scene is bigger (you have only 6gb ram after all)

If it doesn't render with only the gpu try making thinks invisible that are not in the view of the camera (this way you save some ram and the card can maybe render the scene.

 

Does not render at all then  

If it doesn't render with the CPU unselected then you are running out of memeory on your graphics card and that is why the renders are taking a long while as it is dropping back to CPU rendering. 

oconnordavid16

Fishtales said:

oconnordavid16 said:box before cpu should be unchecked to disable your cpu as rendering device

 

You should unselect the cpu and cpu fallback and then test if it renders. It could be that it falls back on only the cpu if the scene is bigger (you have only 6gb ram after all)

If it doesn't render with only the gpu try making thinks invisible that are not in the view of the camera (this way you save some ram and the card can maybe render the scene.

 

Does not render at all then  

If it doesn't render with the CPU unselected then you are running out of memeory on your graphics card and that is why the renders are taking a long while as it is dropping back to CPU rendering.  

my gpu mempry seems to be fine  

oconnordavid16

Fishtales said:

oconnordavid16 said:

Fishtales said:

oconnordavid16 said:

Fishtales said:

Can you attach the scene file so that someone can try and replicate the scene if they have the elements?

Don't think id be able to d othat, is quite alot of emiisve lighting in it which i've heard could slow renders down  

 Create a post; click on Attach File at the bottom; Choose File and then go to where you have saved the scene file and double click on it; post comment.

I'm using alot of differeant things in the scence including stuff not in this particuklar image and things that other people may not have such as th  cars etc

That doesn't really matter but it will give people an idea of your render settings and they can substitute whatever they have for what is missing. 

Ah, would screenshots of my setting work no? I don't really want to share the scene  

Fishtales

@oconnordavid16

Is that showing the memory while running the render?

Showing your settings would help, yes?