2013年7月1日 · Point sprites are indeed well suited for particle systems. But they don't have anything to do with VBOs and GLSL, meaning they are a completely orthogonal feature. No …

I'm trying to render some particles with OpenGL 3+ using point sprites. I've just realized that I have a major issue with the points. They increase in size automatically with respect to the …

2014年6月22日 · Other properties of each point determine the point's color. Each track binds it's vertex array, color array, and a time stamp array and calls a glDrawArrays to render its points. …

As I understand it, gl_PointCoord is always available in the fragment shader in OpenGL 3 when rendering points; but, on the other hand, the GLSL 1.20 specification says that it is only …

Just have a look in pmviewer.sourceforge.net the code is using point sprites and each point has a own color and size to simulate volume rendering: The vertex shader is: vertexShader // with …

2013年1月30日 · Wikipedia only knows about Sprites (Billboard redirects there): In computer graphics, a sprite is a two-dimensional bitmap that is integrated into a larger scene, most often …

In compatbility profiles (or any version of GL before 3.1), the behavior you want only occurs when GL_POINT_SPRITE is enabled. In a core profile, that state was removed, and gl_PointCoord …

2013年4月15日 · This value goes from [0, 1] across the surface of the point. When doing point rendering, it is the only input that ever changes across the surface of the point. (0, 0) is the …

I'm trying to implement textured points (e.g. point sprites) in OpenGL ES 2.0 for a particle system. Problem I'm having is the points all render as solid black squares, rather than having the …

2013年3月24日 · In many cases it may be easier to use textured quads instead of point sprites. This comes from the fact that point sprite size is given as pixels and at least the cases I've …