max length of u_sprite in point vertex shader

[fuzhenn]

Max length of u_sprite is is 504/1014/3900 at maximum in different browsers and environment. It limits max number of sprites. Any improvement?

[wsw0108]

https://www.khronos.org/opengl/wiki/Uniform_(GLSL) OpenGL的限制，作为参考。

• https://github.com/wsw0108/t/blob/master/gl-tests/limits.js

  PS D:\projects\t> node .\gl-tests\limits.js
  MAX_VERTEX_UNIFORM_VECTORS: 1024
  MAX_VARYING_VECTORS: 30
  MAX_FRAGMENT_UNIFORM_VECTORS: 1024
  MAX_TEXTURE_SIZE: 16384
  MAX_VIEWPORT_DIMS: 32767,32767
  MAX_VERTEX_ATTRIBS: 16
  MAX_COMBINED_TEXTURE_IMAGE_UNITS: 32
  MAX_VERTEX_TEXTURE_IMAGE_UNITS: 16
  MAX_TEXTURE_IMAGE_UNITS: 16
  MAX_CUBE_MAP_TEXTURE_SIZE: 16384
  MAX_RENDERBUFFER_SIZE: 16384

• https://github.com/wsw0108/t/blob/master/gl-tests/browser.html

  MAX_VERTEX_UNIFORM_VECTORS: 4096
  MAX_VARYING_VECTORS: 30
  MAX_FRAGMENT_UNIFORM_VECTORS: 1024
  MAX_TEXTURE_SIZE: 16384
  MAX_VIEWPORT_DIMS: 16384,16384
  MAX_VERTEX_ATTRIBS: 16
  MAX_COMBINED_TEXTURE_IMAGE_UNITS: 32
  MAX_VERTEX_TEXTURE_IMAGE_UNITS: 16
  MAX_TEXTURE_IMAGE_UNITS: 16
  MAX_CUBE_MAP_TEXTURE_SIZE: 16384
  MAX_RENDERBUFFER_SIZE: 16384

[fuzhenn]

谢谢.

这个问题其实还好, 重要性不高, 别在这个问题上占用太多时间了, 期待你的dynamic2的进展