# Black patches on sclaing a 3D image **URL:** \ **Category:** Questions\ **Created:** [May 30, 2019, 9:00am UTC](https://forum.babylonjs.com/t/black-patches-on-sclaing-a-3d-image/3600 "2019-05-30T09:00:34Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![Keshav\_Bisarwal](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/keshav_bisarwal/32/2642_2.png) [@Keshav\_Bisarwal](https://forum.babylonjs.com/u/Keshav_Bisarwal)\ **Post date:** [May 30, 2019, 9:00am UTC](https://forum.babylonjs.com/t/black-patches-on-sclaing-a-3d-image/3600/1 "2019-05-30T09:00:34Z")
Hi, I am using BabylonJs to render 3D view of a field. The 3D is ok if the elevation is not too much but if the field is on mountain, i am seeing black surface on sclaing the 3D image. ![3D_blackPatches](https://us1.discourse-cdn.com/flex024/uploads/babylonjs/original/2X/2/29edc7f10aa29359b8fe9a5b8d69c60c593f6b23.png) I have attached an image to help you visualize the issue better. Please let me know if more information is required on this. Thanks a lot in adcance πŸ™‚ ---
**Author:** ![JohnK](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/johnk/32/26764_2.png) [@JohnK](https://forum.babylonjs.com/u/JohnK)\ **Post date:** [May 30, 2019, 9:12am UTC](https://forum.babylonjs.com/t/black-patches-on-sclaing-a-3d-image/3600/2 "2019-05-30T09:12:48Z")
Hi and welcome @Keshav_Bisarwal and I would need a lot more information 1. What mesh are you using? 2. How is the elevation achieved? Best way to show us the issue is to create a [playground](https://doc.babylonjs.com/babylon101/first#the-playground). You can use [textures directly available](https://doc.babylonjs.com/resources/Playground_Textures) or [your own textures](https://doc.babylonjs.com/resources/External_PG_assets) in the [playground](https://www.babylonjs-playground.com/#) ---
**Author:** ![sebavan](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/sebavan/32/57_2.png) [@sebavan](https://forum.babylonjs.com/u/sebavan)\ **Post date:** [May 30, 2019, 9:38am UTC](https://forum.babylonjs.com/t/black-patches-on-sclaing-a-3d-image/3600/3 "2019-05-30T09:38:27Z")
Welcome to the forum !!! It looks like either a texture setup issue or a shader issue to me. What material are you using ? As @JohnK said as well a playground would be great. ---
**Author:** ![Keshav\_Bisarwal](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/keshav_bisarwal/32/2642_2.png) [@Keshav\_Bisarwal](https://forum.babylonjs.com/u/Keshav_Bisarwal)\ **Post date:** [May 31, 2019, 7:22am UTC](https://forum.babylonjs.com/t/black-patches-on-sclaing-a-3d-image/3600/4 "2019-05-31T07:22:16Z")
Hi @JohnK / @sebavan, Thanks for your quick response. i have created a playground example but i am getting an error about eventListener. [https://www.babylonjs-playground.com/index.html#1NURBM](https://www.babylonjs-playground.com/index.html#1NURBM) But i guess you should have all the required info from the above playground. Also, i am using babylonJs version 3.3.0 Thanks in advance πŸ™‚ ---
**Author:** ![sebavan](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/sebavan/32/57_2.png) [@sebavan](https://forum.babylonjs.com/u/sebavan)\ **Post date:** [May 31, 2019, 9:34am UTC](https://forum.babylonjs.com/t/black-patches-on-sclaing-a-3d-image/3600/5 "2019-05-31T09:34:18Z")
Even a fixed playground does not help much ☹ [https://www.babylonjs-playground.com/index.html#1NURBM#1](https://www.babylonjs-playground.com/index.html#1NURBM#1) Could you change the texture path ? ---
**Author:** ![Keshav\_Bisarwal](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/keshav_bisarwal/32/2642_2.png) [@Keshav\_Bisarwal](https://forum.babylonjs.com/u/Keshav_Bisarwal)\ **Post date:** [June 1, 2019, 5:12am UTC](https://forum.babylonjs.com/t/black-patches-on-sclaing-a-3d-image/3600/6 "2019-06-01T05:12:18Z")
Hi @sebavan, Thanks for fixing the playground πŸ™‚ [https://www.babylonjs-playground.com/index.html#1NURBM#3](https://www.babylonjs-playground.com/index.html#1NURBM#3) I have changed the texture image path and it works now. I have also scaled the ground and it works now. // this.ground.scaling.y = 10; Please have a look πŸ™‚ ---
**Author:** ![JohnK](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/johnk/32/26764_2.png) [@JohnK](https://forum.babylonjs.com/u/JohnK)\ **Post date:** [June 1, 2019, 10:04am UTC](https://forum.babylonjs.com/t/black-patches-on-sclaing-a-3d-image/3600/7 "2019-06-01T10:04:08Z")
Cannot give you a definitive answer about the workings of a spot light as to why but maybe sebvan can. It is certainly something to do with the spot light and the values you use. I have added a light and you should know that a color3 takes vales from 0 to 1, not 0 to 255 [Color3 - Babylon.js Documentation](https://doc.babylonjs.com/api/classes/babylon.color3#constructor) Suggest you play around with the spot light position and diffuse and specular values [https://www.babylonjs-playground.com/index.html#1NURBM#4](https://www.babylonjs-playground.com/index.html#1NURBM#4) ---
**Author:** ![sebavan](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/sebavan/32/57_2.png) [@sebavan](https://forum.babylonjs.com/u/sebavan)\ **Post date:** [June 1, 2019, 11:11am UTC](https://forum.babylonjs.com/t/black-patches-on-sclaing-a-3d-image/3600/8 "2019-06-01T11:11:45Z")
I would suggest to use unlit in this situation: ```auto groundMaterial.emissiveColor = BABYLON.Color3.White(); groundMaterial.diffuseTexture.disableLighting =-true; ``` [https://www.babylonjs-playground.com/index.html#1NURBM#5](https://www.babylonjs-playground.com/index.html#1NURBM#5) ---
**Author:** ![Keshav\_Bisarwal](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/keshav_bisarwal/32/2642_2.png) [@Keshav\_Bisarwal](https://forum.babylonjs.com/u/Keshav_Bisarwal)\ **Post date:** [June 3, 2019, 6:01am UTC](https://forum.babylonjs.com/t/black-patches-on-sclaing-a-3d-image/3600/9 "2019-06-03T06:01:57Z")
Hi @sebavan / @JohnK, Thanks a lot guys for your suggestions. groundMaterial.emissiveColor = BABYLON.Color3.White(); groundMaterial.diffuseTexture.disableLighting =-true; The above code works perfectly for me. I am in process of testing to see that it doesn’t impact elsewhere. Thanks πŸ™‚ ---
**Author:** ![sebavan](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/sebavan/32/57_2.png) [@sebavan](https://forum.babylonjs.com/u/sebavan)\ **Post date:** [June 3, 2019, 7:23am UTC](https://forum.babylonjs.com/t/black-patches-on-sclaing-a-3d-image/3600/10 "2019-06-03T07:23:23Z")
should be true and not -true (guess I put a typo there :-)) ---
**Author:** ![Keshav\_Bisarwal](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/keshav_bisarwal/32/2642_2.png) [@Keshav\_Bisarwal](https://forum.babylonjs.com/u/Keshav_Bisarwal)\ **Post date:** [June 3, 2019, 8:19am UTC](https://forum.babylonjs.com/t/black-patches-on-sclaing-a-3d-image/3600/11 "2019-06-03T08:19:54Z")
Yeah… I thought that was intentional πŸ˜ƒ Updated at my end. Thanks