图形学OpenGL
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习题三:

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for (unsigned int i = 0; i < 10; i++)  
{  
    glm::mat4 model;  
    model = glm::translate(model, cubePositions[i]);  
    float angle = 0.0f;  
    if (i % 3 == 0)  
    {  
        angle = i * ((360.0f * sin(glfwGetTime()) / 2) + 0.5f);  
    }  
    model = glm::rotate(model, glm::radians(angle), glm::vec3(1.0f, 0.3f, 0.5f));  
    glUniformMatrix4fv(modelLoc, 1, GL_FALSE, glm::value_ptr(model));  
    glDrawArrays(GL_TRIANGLES, 0, 36);  
}