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Added scroll navigation.
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3350cc73aa
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@ -285,11 +285,12 @@ void key_callback(GLFWwindow window, int key, int action)
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beta += 5;
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break;
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case GLFW_KEY_PAGEUP:
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if (zoom > 1)
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zoom -= 1;
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zoom -= 0.25f;
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if (zoom < 0.f)
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zoom = 0.f;
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break;
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case GLFW_KEY_PAGEDOWN:
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zoom += 1;
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zoom += 0.25f;
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break;
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default:
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break;
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@ -336,6 +337,18 @@ void mouse_position_callback(GLFWwindow window, int x, int y)
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}
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//========================================================================
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// Callback function for scroll events
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//========================================================================
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void scroll_callback(GLFWwindow window, int x, int y)
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{
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zoom += y / 4.f;
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if (zoom < 0)
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zoom = 0;
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}
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//========================================================================
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// Callback function for window resize events
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//========================================================================
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@ -389,6 +402,7 @@ int main(int argc, char* argv[])
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glfwSetWindowSizeCallback(window_resize_callback);
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glfwSetMouseButtonCallback(mouse_button_callback);
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glfwSetMousePosCallback(mouse_position_callback);
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glfwSetScrollCallback(scroll_callback);
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// Initialize OpenGL
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init_opengl();
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