Hopefully this little write-up is helpful to you. It overviews a big chunk of what I’ve learned about WebGL and 3D in general. BTW, if I’ve gotten anything wrong, somebody please correct me — because I’m still learning, too! Architecture The browser is just that, a Web browser. All it does is expose the WebGL … Read more
Overall the changes increase flexibility with bigger buffers, more formats, more uniforms, etc. Additional features such as instanced rendering, pixel buffer objects, and occlusion queries, provide opportunities for optimization. Depending on your platform it could be revolutionary, however many of the key features were already extensions on platforms such as iOS. For my work personally, … Read more
Well, according to the OpenGL API you should use DYNAMIC_DRAW. STREAM You should use STREAM_DRAW when the data store contents will be modified once and used at most a few times. STATIC Use STATIC_DRAW when the data store contents will be modified once and used many times. DYNAMIC Use DYNAMIC_DRAW when the data store contents … Read more
I know one good reason to prefer explicit location definition. Consider that you hold your geometry data in Vertex Array Objects. For a given object, you create a VAO in such way that the indices correspond to, for example: index 0: positions, index 1: normals, index 2: texcoords Now consider that you want to draw … Read more