python中的glCreateProgram（）.uniform

Question

我正在尝试用opengl将一些javascript代码移植到python中。但我不知道我在翻译时做错了什么prog.uniform[u] = gl.getUniformLocation(prog, u);

Javascript代码：

let v = buildShader(vert, gl.VERTEX_SHADER);
let f = buildShader(frag, gl.FRAGMENT_SHADER);
let prog = gl.createProgram();
gl.attachShader(prog, v);
gl.attachShader(prog, f);
gl.linkProgram(prog);
prog.uniform = {};
u = ['model','bounds','frac','aspect'];
_.each(u, function(u){ prog.uniform[u] = gl.getUniformLocation(prog, u); });

Python3/PyOpenGl：

v = self.buildShader(vert, GL_VERTEX_SHADER)
f = self.buildShader(frag, GL_FRAGMENT_SHADER)
prog = glCreateProgram()
glAttachShader(prog, v)
glAttachShader(prog, f)
glLinkProgram(prog)
for u in ['model','bounds','frac','aspect']:
  loc = glGetUniformLocations(prog,u)
  glProgramUniform(prog,loc,u)

Answer 1

^{}给统一赋值，其中第三个参数是值。你知道吗

glProgramUniform(prog,loc,u)没有任何意义，因为u是字符串，它是统一的名称。你知道吗

您必须创建一个字典，其中包含每个名称的制服位置：

uniform = {}
for u in ['model','bounds','frac','aspect']:
    uniform[u] = glGetUniformLocation(prog, u)

或者只是

uniform = { u : glGetUniformLocation(prog, u) for u in ['model','bounds','frac','aspect'] }