# Corona materials render black in Cinema4D **URL:** \ **Category:** General\ **Created:** [December 21, 2018, 12:32pm UTC](https://forums.chaos.com/t/corona-materials-render-black-in-cinema4d/142629 "2018-12-21T12:32:52Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![Space\_Station\_X](https://avatars.discourse-cdn.com/v4/letter/s/c77e96/32.png) [@Space\_Station\_X](https://forums.chaos.com/u/Space_Station_X)\ **Post date:** [December 21, 2018, 12:32pm UTC](https://forums.chaos.com/t/corona-materials-render-black-in-cinema4d/142629/1 "2018-12-21T12:32:52Z")
Hi, I have the newest C4D version and downloaded the newest Corona release. Everything was working fine until I got a low on memory error while rendering a scene. I stopped the rendering, closed down cinema, unnecessary applications to free some ram and proceeded to render the scene again. This time all of the materials rendered black. I made a new project, created a cube, new corona material as white and applied it to the cube. Even in a new project the applied material renders out fully black. I don’t know how to fix it. ![scene.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/2/6/26d0a52309db2765aa266abbecfaf30260152a46.jpeg) ![bnwcorona.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/e/a/ea789664234b81cb7de73d67ff8e61f93b0dcbe9.jpeg) ![blackrender.png](https://europe1.discourse-cdn.com/chaosprd/original/3X/e/f/ef0e400a1db9de46c1e8d78c9ab47486fd7be0d4.png) ---
**Author:** ![beanzvision](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/beanzvision/32/235528_2.png) [@beanzvision](https://forums.chaos.com/u/beanzvision)\ **Post date:** [December 21, 2018, 12:59pm UTC](https://forums.chaos.com/t/corona-materials-render-black-in-cinema4d/142629/2 "2018-12-21T12:59:15Z")
How much memory do you have? Also, have you tried simply rebooting your machine? ---
**Author:** ![houska](https://avatars.discourse-cdn.com/v4/letter/h/3ec8ea/32.png) [@houska](https://forums.chaos.com/u/houska)\ **Post date:** [December 21, 2018, 1:48pm UTC](https://forums.chaos.com/t/corona-materials-render-black-in-cinema4d/142629/3 "2018-12-21T13:48:55Z")
Do you have Corona set as your renderer in the render settings? This seems like an output from the C4D’s standard renderer ---
**Author:** ![Space\_Station\_X](https://avatars.discourse-cdn.com/v4/letter/s/c77e96/32.png) [@Space\_Station\_X](https://forums.chaos.com/u/Space_Station_X)\ **Post date:** [December 21, 2018, 2:03pm UTC](https://forums.chaos.com/t/corona-materials-render-black-in-cinema4d/142629/4 "2018-12-21T14:03:14Z")
> [@beanzvision](#): > > How much memory do you have? Also, have you tried simply rebooting your machine? 16gb 3200, it’s a tiny scene with nearly nothing in it. That was yesterday, rebooted the machine many times since then. ---
**Author:** ![Space\_Station\_X](https://avatars.discourse-cdn.com/v4/letter/s/c77e96/32.png) [@Space\_Station\_X](https://forums.chaos.com/u/Space_Station_X)\ **Post date:** [December 21, 2018, 2:06pm UTC](https://forums.chaos.com/t/corona-materials-render-black-in-cinema4d/142629/5 "2018-12-21T14:06:04Z")
> [@houska](#): > > Do you have Corona set as your renderer in the render settings? This seems like an output from the C4D’s standard renderer Yes I do. For that scene if I open the corona renderer it shows the exact same thing. For this cube if I open the renderer and press render it just opens the standard renderer. ---
**Author:** ![houska](https://avatars.discourse-cdn.com/v4/letter/h/3ec8ea/32.png) [@houska](https://forums.chaos.com/u/houska)\ **Post date:** [December 21, 2018, 2:09pm UTC](https://forums.chaos.com/t/corona-materials-render-black-in-cinema4d/142629/6 "2018-12-21T14:09:44Z")
> [@Space\_Station\_X](#): > > Yes I do. For that scene if I open the corona renderer it shows the exact same thing. For this cube if I open the renderer and press render it just opens the standard renderer. That is strange… Could you send us the scene? ---
**Author:** ![Space\_Station\_X](https://avatars.discourse-cdn.com/v4/letter/s/c77e96/32.png) [@Space\_Station\_X](https://forums.chaos.com/u/Space_Station_X)\ **Post date:** [December 21, 2018, 3:53pm UTC](https://forums.chaos.com/t/corona-materials-render-black-in-cinema4d/142629/7 "2018-12-21T15:53:17Z")
> [@houska](#): > > > [@Space\_Station\_X](#): > > > > Yes I do. For that scene if I open the corona renderer it shows the exact same thing. For this cube if I open the renderer and press render it just opens the standard renderer. > > That is strange… Could you send us the scene? I’ve attached the room scene and just the cube with a plain Corona material. [room scene.c4d](https://forums.chaos.com/uploads/short-url/r4208p2nvlo0WSu8ONEe5ZXdrmO.c4d) (6.65 MB) [cube.c4d](https://forums.chaos.com/uploads/short-url/w6pjbu0NFFfmPOocAXAAEyv0xKM.c4d) (244 KB) ---
**Author:** ![beanzvision](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/beanzvision/32/235528_2.png) [@beanzvision](https://forums.chaos.com/u/beanzvision)\ **Post date:** [December 21, 2018, 4:00pm UTC](https://forums.chaos.com/t/corona-materials-render-black-in-cinema4d/142629/8 "2018-12-21T16:00:49Z")
> [@Space\_Station\_X](#): > > > [@houska](#): > > > > > [@Space\_Station\_X](#): > > > > > > Yes I do. For that scene if I open the corona renderer it shows the exact same thing. For this cube if I open the renderer and press render it just opens the standard renderer. > > > > That is strange… Could you send us the scene? > > I’ve attached the room scene and just the cube with a plain Corona material. The cube scene renders just fine for me (after I made the default renderer to Corona). The room scene renders black because the textures/paths are missing. When you save the scene, choose save ‘project with assets’. Otherwise, others will get the same result. ![missing.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/5/3/53f7b9c9e62242182493ff560bb79e1f0b2b19c3.jpeg) ---
**Author:** ![Space\_Station\_X](https://avatars.discourse-cdn.com/v4/letter/s/c77e96/32.png) [@Space\_Station\_X](https://forums.chaos.com/u/Space_Station_X)\ **Post date:** [December 21, 2018, 6:28pm UTC](https://forums.chaos.com/t/corona-materials-render-black-in-cinema4d/142629/9 "2018-12-21T18:28:58Z")
[/quote] The cube scene renders just fine for me (after I made the default renderer to Corona). The room scene renders black because the textures/paths are missing. When you save the scene, choose save ‘project with assets’. Otherwise, others will get the same result. [/quote] So I reasigned the directories of the textures and now it renders out in colour, thank you! However in a new project like the cube when I apply a corona material and proceed to open the VFB, after pressing Render it just opens the picture viewer. Pressing interactive renderer works though so I should be alright from now on. Thanks again! ---
**Author:** ![sprayer\_1](https://avatars.discourse-cdn.com/v4/letter/s/5fc32e/32.png) [@sprayer\_1](https://forums.chaos.com/u/sprayer_1)\ **Post date:** [December 22, 2018, 1:21pm UTC](https://forums.chaos.com/t/corona-materials-render-black-in-cinema4d/142629/10 "2018-12-22T13:21:22Z")
is this section was changed for cinema too? ---
**Author:** ![beanzvision](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/beanzvision/32/235528_2.png) [@beanzvision](https://forums.chaos.com/u/beanzvision)\ **Post date:** [December 22, 2018, 2:07pm UTC](https://forums.chaos.com/t/corona-materials-render-black-in-cinema4d/142629/11 "2018-12-22T14:07:32Z")
> [@sprayer](#): > > is this section was changed for cinema too? “Corona Renderer for Cinema 4D - General” seems like the section to me. 😉 Edit: I see it was moved 😉 ---
**Author:** ![beanzvision](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/beanzvision/32/235528_2.png) [@beanzvision](https://forums.chaos.com/u/beanzvision)\ **Post date:** [December 22, 2018, 2:10pm UTC](https://forums.chaos.com/t/corona-materials-render-black-in-cinema4d/142629/12 "2018-12-22T14:10:26Z")
> [@Space\_Station\_X](#): > The cube scene renders just fine for me (after I made the default renderer to Corona). The room scene renders black because the textures/paths are missing. When you save the scene, choose save ‘project with assets’. Otherwise, others will get the same result. [/quote] So I reasigned the directories of the textures and now it renders out in colour, thank you! However in a new project like the cube when I apply a corona material and proceed to open the VFB, after pressing Render it just opens the picture viewer. Pressing interactive renderer works though so I should be alright from now on. Thanks again! [/quote] In Cinema’s preference settings, go to the Corona tab (at the bottom) you can choose if you want it to render to the PV or VFB as default. Hope that helps.