My approach is to calculate two tangent vectors parallel to axis X and Y respectively. Then calculate the cross product to find the normal vector. The tangent vector is given by the line that cros...

I'm trying hard to reproduce a MATLAB algorithm called "patchnormal" which first calculates the normal vectors of all faces, and after that calculates the vertex normals from the face normals weigh...

I'm trying to calculate smooth normals for a cone. In looking around for code samples and explanations, I consistently come across directions for face normals. I've posted a couple pictures below o...

I want to display mesh models in OpenGL ES 2.0, where it clearly shows the actual mesh, so I don't want smooth shading across each primitive/triangle. The only two options I can think about are ...

Lets say that i have the following array : float QuadVertices[4 * 2]; float QuadNormals[4 * 2]; Which i fill this way : //Fill vertices for a 2d quad Renderer->FillVertices(QuadVertices,GL_Q...

My Task I currently creating a terrain for Unity3D which is specialized for mobile-devices with low memory for a running app. Allowing a terrain with a size of 15.000 x 15.000 kilometers and a hei...

Many of the mapping techniques including normal bump mapping, parallax mapping and others require the special per-vertex tangent-space basis (tangent, normal, binormal / bitangent). This obviously...