I am building and rendering a custom mesh. However, sometimes it renders with artifacts. See the noise on the mesh surface, it shouldn’t be there. What can you say?
h__p://s24.postimg.org/gbe4h9r39/image.png
Your link is garbled…
looks like z fighting to me, are you sure you don’t have 2 face on top of one another?
<cite>@zarch said:</cite> Your link is garbled...
Oh, just replace h__p with http. Sorry for that. Most forums policies suggest not to post direct links to something… i don’t remember if this rule applies here, but I did it just to be sure.
As for posting image in my message via some standard forum features - I can’t since there is no such option when I edit a post. Half of the buttons above the editing area are empty - some javascript problem, I assume, - and I suppose that “insert image” is somewhere among them.
Links are fine, we don’t restrict that. Forum buttons are totally busted at the moment. To include an embedded image manually, just use the img tag like a normal web page.
So for most of the people like me who frequently don’t have time to jump through hoops just to see an image (in fact I still haven’t looked at it and this will be the first I see it):
And I agree with @nehon. It’s hard to tell exactly what we are seeing because we don’t know what the scene is but it does look like classic Z-fighting.
Also it looks like some of your mesh is inside out… ie: the winding order is backwards. Like that bottom edge looks like one end of it is flipped and so those triangles are inside out. Do you render with Face Culling set to None? Try setting it to just Front and see if faces seem to disappear… then you will know that some of your faces are backwards.