OK，然后这是我的一个解决方案的猜测：

ok then here is my guess at a solution:

• 在glVertexAttribPointer（）调用，似乎要被罚款

• the glVertexAttribPointer() calls seems to be fine

我的猜测

vsTextureCoord == -1

vsTextureCoord == -1

glGetAttribLocation（）不会产生错误
如果未找到的属性。你必须检查如果结果是
不为-1，以确保一切正常。

glGetAttribLocation() does not generate an error if the attribute was not found. you have to check if the result is not -1 to make sure everything went fine.

源的问题可能是在属性TexCoordIn您
着色器是一个vec4！

source for the problem could be that the attribute TexCoordIn in your shader is a vec4!