Method FindUniform

Rendering/OpenGL2/vtkShaderProgram.cxx:1086–1107

}

int vtkShaderProgram::FindUniform(const char* cname)
{
  if (cname == nullptr || !this->Linked)
  {
    return -1;
  }

  GLint loc = -1;

  IterT iter = this->UniformLocs.find(cname);
  if (iter == this->UniformLocs.end())
  {
    loc = static_cast<int>(glGetUniformLocation(static_cast<GLuint>(Handle), (const GLchar*)cname));
    const char* allocStr = strdup(cname);
    this->UniformLocs.insert(std::make_pair(allocStr, static_cast<int>(loc)));
  }
  else
  {
    loc = iter->second;
  }
  return loc;
}

bool vtkShaderProgram::IsUniformUsed(const char* cname)
{