XNA Diffuse Shader Issue. Edge lighting problem. Image Attached

Posted by adtither on Game Development See other posts from Game Development or by adtither
Published on 2014-04-21T12:13:24Z Indexed on 2014/08/22 4:28 UTC
Read the original article Hit count: 310

Filed under:

XNA

|

shaders

|

lighting

|

shadows

|

normals

DiffuseShadowIssue DiffuseCubeIssue

As you can see in this image the diffuse shading is working correctly in some places but in other places such as the the bottom of the sphere you can see the squares/triangles of the mesh.

Any idea what would be causing this? Let me know if you need anymore information related to code. I can upload my normals calculations and shader effect if required.

EDIT: Here's a link to the shader I'm using http://pastebin.com/gymVc7CP

Link to normals calculations: http://pastebin.com/KnMGdzHP

Seems to be an issue with edge lighting. Can't seem to see where I'm going wrong with the normals calculations though.

© Game Development or respective owner

Related posts about XNA

Camera for 2.5D Game

as seen on Game Development - Search for 'Game Development'
I'm hoping someone can explain this to me like I'm 5, because I've been struggling with this for hours and simply cannot understand what I'm doing wrong. I've written a Camera class for my 2.5D game. The intention is to support world and screen spaces like this: The camera is the black thing on… >>> More
Using XNA ContentPipeline to export a file in a machine without full XNA GS

as seen on Game Development - Search for 'Game Development'
My game uses the Content Pipeline to load the spriteSheet at runtime. The artist for the game sends me the modified spritesheet and I do a build in my machine and send him an updated project. So I'm looking for a way to generate the xnb files in his machine (this is the output of the content pipeline)… >>> More
XNA - Strange Texture Rendering Issue Using XNA BasicEffect

as seen on Game Development - Search for 'Game Development'
I have been reading and working through Riemers 3D XNA tutorials to expand my knowledge of XNA from 2D into 3D. Unfortunately I am having rendering issues that I am unable to solve and I need a point in the right direction. I am not expecting the Models to look identical to Blender but there is… >>> More
XNA Notes 009

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
This past week the MVPs (myself included) were on Microsoft campus for the MVP summit. So I apologize in advance if you did something cool or heard of something cool happening with XNA and XBLIGs and it’s not in my notes. I did my best to stay on top of things, but honestly this community is fast… >>> More
XNA Notes 006

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
If you used to think the XNA community was small and inactive, hopefully these XNA Notes are opening your eyes. And I honestly feel like I’m still only catching the tail end of everything that’s going on. It’s a large and active community and you can be so mired down in one part of it you miss all… >>> More

Related posts about shaders

Implementing algorithms via compute shaders vs. pipeline shaders

as seen on Game Development - Search for 'Game Development'
With the availability of compute shaders for both DirectX and OpenGL it's now possible to implement many algorithms without going through the rasterization pipeline and instead use general purpose computing on the GPU to solve the problem. For some algorithms this seems to become the intuitive canonical… >>> More
How do multipass shaders work in OpenGL?

as seen on Game Development - Search for 'Game Development'
In Direct3D, multipass shaders are simple to use because you can literally define passes within a program. In OpenGL, it seems a bit more complex because it is possible to give a shader program as many vertex, geometry, and fragment shaders as you want. A popular example of a multipass shader is… >>> More
Differences in cg shader code for OpenGL vs. for DirectX?

as seen on Game Development - Search for 'Game Development'
I have been trying to use an existing library that automatically generates shaders (Hydrax plugin for Ogre3D). These shaders are used to render water and somewhat involved, but are not extremely complicated. However there seems to be some differences in how the cg shaders are handled by OpenGL and… >>> More
WPF Parent Window shading using Pixel Shaders

as seen on Code Project - Search for 'Code Project'
This article discusses using Pixel Shaders to shade the main window when a dialog is showing. >>> More
Unity3D draw call optimization : static batching VS manually draw mesh with MaterialPropertyBlock

as seen on Game Development - Search for 'Game Development'
I've read Unity3D draw call batching documentation. I understood it, and I want to use it (or something similar) in order to optimize my application. My situation is the following: I'm drawing hundreds of 3d buildings. Each building can be represented using a Mesh (or a SubMesh for each building… >>> More