Image 1: viewport shading. Image 2: full render. Image 3,4: the settings. I tried to turn down the world lightning here, but must have missed it somewhere. If I hide all lights, (including in render mode), the full render will still be light, so I guess there’s some world light left somewhere that affects the render? The output properties ...32 votes, 12 comments. 736K subscribers in the blender community. Blender is an awesome open-source software for 3D modelling, animation, rendering… Viewport shading refers to the overall look of the 3D viewport. Since Blender version 2.80 and the introduction of Eevee we have a lot more options than we had before. We find the settings for the viewport shading in the top right corner of the 3D viewport. These are the shading modes available from left to right: Wireframe.Bug: Displacement renders better in Viewport than in Production Render. See attached image: GroundClay - Viewport and GroundClay - Render for the difference. Also attached is the original Blend file packed with the images and node setup. Made on macOS Blender 2.79b with RPR 1.6.159.Jul 3, 2021 · Bug: Displacement renders better in Viewport than in Production Render. See attached image: GroundClay - Viewport and GroundClay - Render for the difference. Also attached is the original Blend file packed with the images and node setup. Made on macOS Blender 2.79b with RPR 1.6.159. Expected result: the Production... Better contrast in the viewport because it doesn't apply that dull grey Background world node color in the viewport. Under Shading tab drop down - select world - change that color to almost black and give it a render. You can also generate a star filled sky with noise. May 22, 2021 · If you look at "Sampling" in your scene properties, you can see one difference, which is that you are using many fewer samples in the viewport. So the viewport will have more rendering artifacts (sometimes called fireflies.) Another major difference is that you are using a denoiser in your render but not in the viewport. – Marty Fouts. *Open in version 2.81 (Due to eevee having better shadows and looks better then 2.80) *on the right window of blender, change viewport shading to "Rendered", in the little down arrow button beside the shading button, please ensure Scene Light and Scene World are Ticked *Press F12 / Render, the rendered result should appear of the left Window.Aug 13, 2018 · 1 Answer. Sorted by: 1. The light source I think is the same. The reason the preview render looks so dark is because the samples are much lower so in the final render more samples pick up the light better. Perhaps you can check light bounces in your render Tab and reduce them to 1 or 2 because the default is always 12 which is often excessive. Jul 3, 2021 · Bug: Displacement renders better in Viewport than in Production Render. See attached image: GroundClay - Viewport and GroundClay - Render for the difference. Also attached is the original Blend file packed with the images and node setup. Made on macOS Blender 2.79b with RPR 1.6.159. Expected result: the Production... Aug 13, 2018 · 1 Answer. Sorted by: 1. The light source I think is the same. The reason the preview render looks so dark is because the samples are much lower so in the final render more samples pick up the light better. Perhaps you can check light bounces in your render Tab and reduce them to 1 or 2 because the default is always 12 which is often excessive. Note: The final render always uses Static BVH, while the viewport render uses the settings in Properties > Render > Performance > Viewport. Cache BVH: When enabled, Blender saves the BVH to the hard drive and re-uses it if no geometry had been modified. According to the wiki this will slow down the render if geometry is modified. *Open in version 2.81 (Due to eevee having better shadows and looks better then 2.80) *on the right window of blender, change viewport shading to "Rendered", in the little down arrow button beside the shading button, please ensure Scene Light and Scene World are Ticked *Press F12 / Render, the rendered result should appear of the left Window. Image 1: viewport shading. Image 2: full render. Image 3,4: the settings. I tried to turn down the world lightning here, but must have missed it somewhere. If I hide all lights, (including in render mode), the full render will still be light, so I guess there’s some world light left somewhere that affects the render? The output properties ... 1 Answer. For now Intel's OpenImageDenoise is superior to all the other ones. From the release notes: Compared to the existing denoiser, it works better with more complex materials like glass, and suffers less from splotchy artifacts. It also gives better results with very low numbers of samples, which can be used for quick previews.Apr 27, 2020 · When I render the viewport from "View > Viewport Render Image" it appears different and far darker. Images are darkened in wireframe and solid mode but not in material preview or rendered preview (cycles / evee). HOWEVER, if any other render passes beside "Combined" is chosen then it then starts to appear darkened if viewport rendered. Mar 7, 2020 · I need to get the same effect as in the viewport, but I can't find a difference in the settings for viewport and final render. All lights are render-activated in the outliner, and in the object properties. Thanks for any help (I changed the green color a little, so it's not 100% as in the images provided) When I try to render a wave, it keeps being rendered in extremely low quality. I'm not sure exactly which setting is causing this, but increasing the renderand viewport sampling don't seem to help.Aug 1, 2021 · this is a 3d model with a grease pencil outline and I'm rendering with cycles. What resolution are you rendering at? We could use a screen shot of your render settings but I suspect @James question is the key. That looks like a very low resolution render. You're 100% correct. it was a low res render. If you look at "Sampling" in your scene properties, you can see one difference, which is that you are using many fewer samples in the viewport. So the viewport will have more rendering artifacts (sometimes called fireflies.) Another major difference is that you are using a denoiser in your render but not in the viewport. – Marty Fouts.In the viewport it uses only a default hdri to light, in the renderer it uses your lights and your world settings. The viewport has 4 modes: wireframe, clay, materials-preview and render-preview. Your explanation only applies to the material-preview. The render-preview uses the scene hdri and the actual lights (assuming default view-mode settings). Curently it looks like you have the viewport set to lookdev mode (the 3rd of the 4 little sphere button in the top right of the viewport) rather than rendered mode (the 4th little button). For the most part this shouldn't make a big difference when rendering in Eevee, but I'd double check the rendered mode in the viewport.Hi. I have a short animation sequence with emissive particles. It looks pretty well in the viewport but a test PNG render of the shot is pixelated and poor lit and something’s weird with the bloom. I can render the viewport eventually but I’d like to know the cause. I’m a rookie so I could miss some obvious settings.In the viewport it uses only a default hdri to light, in the renderer it uses your lights and your world settings. The viewport has 4 modes: wireframe, clay, materials-preview and render-preview. Your explanation only applies to the material-preview. The render-preview uses the scene hdri and the actual lights (assuming default view-mode settings). 20. The flower mesh has a solidify modifier which is only enabled for rendering. The extra thickness from this modifier makes the translucent material give a different result. In general for differences between render and viewport, check these: Object viewport and render visibility in the outliner. Modifier viewport and render visibility.*Open in version 2.81 (Due to eevee having better shadows and looks better then 2.80) *on the right window of blender, change viewport shading to "Rendered", in the little down arrow button beside the shading button, please ensure Scene Light and Scene World are Ticked *Press F12 / Render, the rendered result should appear of the left Window.I'm trying to make a test render of my model. But everytime I render it the render looks completely different from the viewport. The viewport is in render mode so it should look something like that, but this doesn't come even close. I'm using cycles renderer. And my world note is just the standard one so nothing installed there.In the viewport it uses only a default hdri to light, in the renderer it uses your lights and your world settings. The viewport has 4 modes: wireframe, clay, materials-preview and render-preview. Your explanation only applies to the material-preview. The render-preview uses the scene hdri and the actual lights (assuming default view-mode settings). In 2.79 under Render choose openGL Render Animation, and make sure Only Render is checked under Display on the right side menu. Ah, thanks for the quick response! I should've specified, though- I'm talkin' about the Shift-Z Render View in the Viewport rather than the solid/textured Viewport Vew. The difference between basic render and viewport render is insane! Check this out!If you'd like to help support my channel, please consider making a donation... Curently it looks like you have the viewport set to lookdev mode (the 3rd of the 4 little sphere button in the top right of the viewport) rather than rendered mode (the 4th little button). For the most part this shouldn't make a big difference when rendering in Eevee, but I'd double check the rendered mode in the viewport.**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: Radeon (TM) RX 480 Graphics ATI Technologies Inc. 4.5.13587 Core Profile Context 20.2.2 26.20.15019.19000 **Blender Version** Broken: version: 2.90.0, branch: master, commit date: 2020-08-31 11:26, hash: `0330d1af29` Worked: (newest version of Blender that worked as expected) tested in 2.90 and 2.91 Alpha ...*Open in version 2.81 (Due to eevee having better shadows and looks better then 2.80) *on the right window of blender, change viewport shading to "Rendered", in the little down arrow button beside the shading button, please ensure Scene Light and Scene World are Ticked *Press F12 / Render, the rendered result should appear of the left Window. In 2.79 under Render choose openGL Render Animation, and make sure Only Render is checked under Display on the right side menu. Ah, thanks for the quick response! I should've specified, though- I'm talkin' about the Shift-Z Render View in the Viewport rather than the solid/textured Viewport Vew. Mar 7, 2020 · I need to get the same effect as in the viewport, but I can't find a difference in the settings for viewport and final render. All lights are render-activated in the outliner, and in the object properties. Thanks for any help (I changed the green color a little, so it's not 100% as in the images provided) Hi guys, already did a search on google and youtube, but seems like doesn’t fix my issue. The render is different in render viewport and render, using cycles. Here it is in render viewport : And here in render final There is a lot of differences, first one is the specular, in the render is too shiny. and also the elbow looks different. And the spider geometry, in viewport is fine, in render ...Check each modifier above the hair particle modifier and make sure their viewport settings are the same as their render settings. This means they should all be visible in the viewport and if there are any settings that are render specific (e.g. subdivision count) that they match viewport.Apr 4, 2022 · Try rendering with lower sampling, 144 or 196 and increase all max bounces to 256 or 512 at light paths tab. Make some test with denoiser, 65536 samples is pretty much a overkill for rendering. Disable Use Tiling, now this feature is different than 3.0 previous releases. For testing purposes also consider rendering in CPU only. Feb 8, 2020 · 1 Answer. For now Intel's OpenImageDenoise is superior to all the other ones. From the release notes: Compared to the existing denoiser, it works better with more complex materials like glass, and suffers less from splotchy artifacts. It also gives better results with very low numbers of samples, which can be used for quick previews. Viewport render better than final render #81261. New Issue. Closed. opened 3 years ago by Julian · 15 comments. Julian commented 3 years ago. System Information. Operating system: Windows-10-10.0.18362-SP0 64 Bits. Graphics card: Radeon (TM) RX 480 Graphics ATI Technologies Inc. 4.5.13587 Core Profile Context 20.2.2 26.20.15019.19000. Blender ...Viewport shading refers to the overall look of the 3D viewport. Since Blender version 2.80 and the introduction of Eevee we have a lot more options than we had before. We find the settings for the viewport shading in the top right corner of the 3D viewport. These are the shading modes available from left to right: Wireframe.Sep 3, 2020 · Some of merged reports are same as this one - viewport render doesn't actually match viewport colors. so I will merge this one as well Problem here seems to be "reversed" - in solid mode viewport it always uses "Standard" view transform but then it uses filmic transform on rendered image. May 18, 2021 · But if you want a better workaround, just position the viewport where you want, then press CTRL+ALT+numpad-0 to position the camera at your view, and then do a normal render with F12. Unfortunately, the issue is worse when doing an actual render. Lots of purple shades and again, overexposed bits. One thing I noticed though is that one of your light is disabled in the viewport but not in the render, you can see it cause the light doesn’t come from the same angle onto your scene. But as for the overall brightness it’s probably due to the color management setting.if you’re using the filmic view transform try out different values for ...Sep 8, 2020 · Here’s an example of what I see in the viewport (with Flat Viewport Shading, and Cavity and Outlines turned ON). The snapshot was taken with external software. And here’s the result when I use the Viewport Render Image. … 1 Answer. No that can not be done. The compositer does not render in viewport. The viewport render is just a quick preview of the scene. From digging around a bit, it appears that this is on a sort of unofficial todo list (mentioned here and here ).It is common practice to keep the viewport level lower so that we don't add too much geometry in the 3D viewport while still getting a higher quality render with a higher render number. This of course also causes a difference between the 3D viewport and the final render result.Jun 3, 2019 · The equivalent to camera icon for viewport would be the screen/monitor icon that you can enable from what is shown in the red circle. Anyway there are strange things with that scene, Final Render is very heavy on my machine, it freezes my machine for a while. In addition, apparently the final render result does not show all the lines completely. Apparently there is something wrong when Viewport Render image, Cavity is not that strong compared to what it looks like in viewport. Even switching to the Workbench engine and setting Cavity there on the Render tab, when Render Image the cavity effect is not good either.One thing I noticed though is that one of your light is disabled in the viewport but not in the render, you can see it cause the light doesn’t come from the same angle onto your scene. But as for the overall brightness it’s probably due to the color management setting.if you’re using the filmic view transform try out different values for ...Better contrast in the viewport because it doesn't apply that dull grey Background world node color in the viewport. Under Shading tab drop down - select world - change that color to almost black and give it a render. You can also generate a star filled sky with noise.Image in viewport (1) looks better than render image (2) 1 / 3. I render my projects for a while and everything always was alright, but today every my render coming up with pixel stairs no matter what setting is. Anyone know why it happens?Try rendering with lower sampling, 144 or 196 and increase all max bounces to 256 or 512 at light paths tab. Make some test with denoiser, 65536 samples is pretty much a overkill for rendering. Disable Use Tiling, now this feature is different than 3.0 previous releases. For testing purposes also consider rendering in CPU only.The difference between basic render and viewport render is insane! Check this out!If you'd like to help support my channel, please consider making a donation... Image in viewport (1) looks better than render image (2) 1 / 3. I render my projects for a while and everything always was alright, but today every my render coming up with pixel stairs no matter what setting is. Anyone know why it happens? 2. You have to increase path steps in render dropdown menu under hair particle system, not just in viewport display. Share. Improve this answer. Follow. answered Dec 1, 2021 at 3:11. Glo. 21 3. This caught me out for a while - good answer and a main reason why viewport and final renders of hair look different.Note: The final render always uses Static BVH, while the viewport render uses the settings in Properties > Render > Performance > Viewport. Cache BVH: When enabled, Blender saves the BVH to the hard drive and re-uses it if no geometry had been modified. According to the wiki this will slow down the render if geometry is modified.When I render the viewport from "View > Viewport Render Image" it appears different and far darker. Images are darkened in wireframe and solid mode but not in material preview or rendered preview (cycles / evee). HOWEVER, if any other render passes beside "Combined" is chosen then it then starts to appear darkened if viewport rendered.Viewport Render. Viewport rendering lets you create quick preview renders from the current viewpoint (rather than from the active camera, as would be the case with a regular render). You can use Viewport Render to render both images and animations. Below is a comparison between the Viewport render and a final render using the Cycles Renderer.Viewport Render provides a quick render preview of a still scene or a rough copy of an animation. It gives you an approximation of the expected output without the need to do the final render and wait for it to appear. The render preview mode enables interactive control over the scene and allows you to manipulate objects, lights and cameras, set ...Viewport shading refers to the overall look of the 3D viewport. Since Blender version 2.80 and the introduction of Eevee we have a lot more options than we had before. We find the settings for the viewport shading in the top right corner of the 3D viewport. These are the shading modes available from left to right: Wireframe.Mar 7, 2020 · I need to get the same effect as in the viewport, but I can't find a difference in the settings for viewport and final render. All lights are render-activated in the outliner, and in the object properties. Thanks for any help (I changed the green color a little, so it's not 100% as in the images provided) In the viewport, the hair looks like this: In the render, it looks like this: It looks quite a bit thicker and spiky. Does anybody know why I’m having this discrepancy? I’ve set the hair children amount and render sample amount the same between viewport and render. Attaching file for inspection: 2.8 MonkeyHairTest.blend (1.8 MB)Aug 18, 2023 · Preparing Blender Viewport. It's recommended to set up Blender's viewport as described in this section to make configuring shadows easier. Verge3D aims to resemble Blender's Eevee renderer. Follow these instructions to enable it: Ensure that the Render Properties → Render Engine option is set to Eevee. Eevee is enabled in Blender 2.8+ by ... See full list on artisticrender.com 3. It's an overscan issue. Basically, Eevee does a lot of his work using "what the camera sees". That's why for example you might see screenspace reflections fade out on the picture's edges. Bloom is affected by this as well. In the viewport, "what the camera sees" correspond to your viewport, even when in camera perspective.Steps. Download Article. 1. Navigate to the render settings and output menus. These are (by default) the camera and printer icons in the properties menu towards the right of the screen. 2. Choose a rendering engine. Pick from Cycles, Eevee and Workbench. Each engine has a different feature set for different applications:If you look at "Sampling" in your scene properties, you can see one difference, which is that you are using many fewer samples in the viewport. So the viewport will have more rendering artifacts (sometimes called fireflies.) Another major difference is that you are using a denoiser in your render but not in the viewport. – Marty Fouts.Oct 5, 2020 · 1. The problem: When in solid view there's no way of seeing if Vertex Colour mode is enabled or not. In your case it was enabled, which means that whatever material you used when drawing was being overridden by the brown colour selected for vertex colour. That only becomes visible when you switch to material preview or rendered mode. 2 Answers. Look at your outliner, you have (at least) 1 object (probably a light) set to render, but hidden in viewport (camera icon active, but eyeball icon greyed out) it's named BMWRim . I'm guessing it's a rim light. it's just a car part, normal material, not light, but I know what you mean.What you are experiencing is a limitation of the render viewport. Sadly it is broken and has issues displaying the mix of transparency and luminescent (emission or reflections) correctly. Sadly it is broken and has issues displaying the mix of transparency and luminescent (emission or reflections) correctly.So my exposure is set to 9 but I don’t see why that would be a problem since the viewport render is perfect. Viewport in the middle of rendering 1024 samples. Viewport applied OIDN denoising after 1024 samples had rendered. Final Render with 1024 samples and OIDN. I have also tried rendering with up to 4096 samples. Still get the same problem.Wrong Cavity in Viewport Render Image and Workbench Render. #80601. If you do View > Viewport Render Image, resulting image shows Cavity smoother than what you get in Viewport. The file is in the Workbench engine with cavity enabled. If you do Render > Render image, the same happens.I was trying to get the same look with slightly yellow highlights but since there is only one Color setting it’s not possible. Much better than no specular highlights but a slight degradation to previous freedom. I enjoyed creating materials with 2 shades like green and blue with hardness of 5 which looked great.$\begingroup$ because the render of viewport is opengl and is not presiso simply shows a fast render without reflections or detail, to be able to move vertices and that the representation is instantaneous, unlike rendering with the button that applies calculations of the rendering engine cycles or blender render depending on the case and it is very different to render with millions of ...The first image which is a viewport render took 1 minutes and 45 seconds to render, the other one which is the F12 render took 5 minutes and 39 seconds to render, and I think both renders look pretty much the same quality, and sometimes viewport rendering has slightly better quality! I really don’t understand why.Sep 8, 2020 · Here’s an example of what I see in the viewport (with Flat Viewport Shading, and Cavity and Outlines turned ON). The snapshot was taken with external software. And here’s the result when I use the Viewport Render Image. … If you look at "Sampling" in your scene properties, you can see one difference, which is that you are using many fewer samples in the viewport. So the viewport will have more rendering artifacts (sometimes called fireflies.) Another major difference is that you are using a denoiser in your render but not in the viewport. – Marty Fouts.Black Streaks in Final Render and Viewport (Cycles) Modeled in Blender, Texture in Substance. This is for a game I'm making and would love some critique on how I can improve it. Got baked, then baked the F-Curves. Sand moves to the vibration of the music by alvarinski & lk.sech. { 18,000 frames at 4K = 7 days of rendering }Viewport Render provides a quick render preview of a still scene or a rough copy of an animation. It gives you an approximation of the expected output without the need to do the final render and wait for it to appear. The render preview mode enables interactive control over the scene and allows you to manipulate objects, lights and cameras, set ...this is a 3d model with a grease pencil outline and I'm rendering with cycles. What resolution are you rendering at? We could use a screen shot of your render settings but I suspect @James question is the key. That looks like a very low resolution render. You're 100% correct. it was a low res render.Preparing Blender Viewport. It's recommended to set up Blender's viewport as described in this section to make configuring shadows easier. Verge3D aims to resemble Blender's Eevee renderer. Follow these instructions to enable it: Ensure that the Render Properties → Render Engine option is set to Eevee. Eevee is enabled in Blender 2.8+ by ...My project stopped again because of some problems to edit and render hair. I am not new in hair particles and mostly made grass, stones distributions by using systems. But now I am working on 3d portrait and responsiveness of hair are important in order to make good result. So problems are following: 1. Particle edit is ignoring length of hair defined by weight of vertex. Switching "Keep ...Hello, I’m trying to build a carport scene with blender 2.8 and eevee renderer on an ubuntu machine. At the end of the day I find that the “Look dev” looks much better than the “render result” view. Materials look more natural, shines and glasses are more realistic etc. And “look dev” renders much faster (~20x), when I hit the “view -> viewpoint render image” button instead ...The equivalent to camera icon for viewport would be the screen/monitor icon that you can enable from what is shown in the red circle. Anyway there are strange things with that scene, Final Render is very heavy on my machine, it freezes my machine for a while. In addition, apparently the final render result does not show all the lines completely.Check each modifier above the hair particle modifier and make sure their viewport settings are the same as their render settings. This means they should all be visible in the viewport and if there are any settings that are render specific (e.g. subdivision count) that they match viewport.When I take an object and click "quick smoke" and set the flow type to fire, it looks very good in the viewport. However the render looks terrible. Here is an example: Viewport- Render- It, for some reason, has a black outline. I saw this problem much more when I too the monkey, set to to quick explode, then added a smoke domain.To me it looks like denoising artifacts. That in combination with Subsurface Subsurface Scattering can look ugly sometimes. You have different settings under Render Properties -> Sampling -> Viewport/Denoise and Render/Denoise Try matching them or turning off denoising for the final render. – oaaya. Aug 1, 2022 at 21:49.
The difference between basic render and viewport render is insane! Check this out!If you'd like to help support my channel, please consider making a donation... . Sandw appliance
I'm trying to make a test render of my model. But everytime I render it the render looks completely different from the viewport. The viewport is in render mode so it should look something like that, but this doesn't come even close. I'm using cycles renderer. And my world note is just the standard one so nothing installed there.I was working on Blender Guru's beginner tutorial. When I was rendering final image, I found that rendered image is way different from viewport image, in which I was checking for light setting. Render image looks way brighter than viewport's. How can I correct this? Render setting has not changed from default; Exposure is 1.00Image in viewport (1) looks better than render image (2) 1 / 3. I render my projects for a while and everything always was alright, but today every my render coming up with pixel stairs no matter what setting is. Anyone know why it happens?May 1, 2020 · No matter what sorts of settings I tweak in the Render properties, I always get an ugly, much darker result that looks very different from what I am seeing in the viewport. The shading that I originally set for the objects doesn't match the render, nor do the shadows match. I have spent all day trying to resolve this issue with no luck. Viewed 202 times. 1. I was trying to render a circle that I would later add glare to in compositing. When I rendered the image with the compositing, it looked fin in blender, however when I saved the image it did not save the glare and it was just a white circle. Any ideas on why this is happening?Oct 12, 2019 · Hello, I’m trying to build a carport scene with blender 2.8 and eevee renderer on an ubuntu machine. At the end of the day I find that the “Look dev” looks much better than the “render result” view. Materials look more natural, shines and glasses are more realistic etc. And “look dev” renders much faster (~20x), when I hit the “view -> viewpoint render image” button instead ... *Open in version 2.81 (Due to eevee having better shadows and looks better then 2.80) *on the right window of blender, change viewport shading to "Rendered", in the little down arrow button beside the shading button, please ensure Scene Light and Scene World are Ticked *Press F12 / Render, the rendered result should appear of the left Window. Blender 3D computer graphics software Software Information & communications technology Technology Comments sorted by Best Top New Controversial Q&A Add a Comment OculusDrummer •The problem is still here, in 3.51.: Viewport Render Image while in Cycles rendered mode gives a grey screen, while x-y and grid-lines and are presented in “render”. Render viewport while in evee works fine, Render in cycles with using a camera - also works fine.Better contrast in the viewport because it doesn't apply that dull grey Background world node color in the viewport. Under Shading tab drop down - select world - change that color to almost black and give it a render. You can also generate a star filled sky with noise.When I take an object and click "quick smoke" and set the flow type to fire, it looks very good in the viewport. However the render looks terrible. Here is an example: Viewport- Render- It, for some reason, has a black outline. I saw this problem much more when I too the monkey, set to to quick explode, then added a smoke domain.You can set the output resolution of the render in the Properties Editor > Render settings > Dimensions Panel: The Dimensions section has settings for the size of the rendered images. By default the dimensions SizeX and SizeY are 1920×1080 and can be changed by adjusting the X and Y fields. These buttons control the overall size of the image.It is common practice to keep the viewport level lower so that we don't add too much geometry in the 3D viewport while still getting a higher quality render with a higher render number. This of course also causes a difference between the 3D viewport and the final render result.It is common practice to keep the viewport level lower so that we don't add too much geometry in the 3D viewport while still getting a higher quality render with a higher render number. This of course also causes a difference between the 3D viewport and the final render result..