Body: <p>Anyone here using the Imager plugin and creating responsive images using srcset and sizes?
  Any ideas on how to avoid creating multiple versions of the same image if the original asset uploaded is smaller than the set transforms? I added the setting <code>'allowUpscale'       =&gt;      false,</code> but this has resulted in 7 versions of the same image (same dimensions etc)
  <a href="https://github.com/aelvan/Imager-Craft" rel="nofollow noreferrer">https://github.com/aelvan/Imager-Craft</a></p>
  
  <p>For example:</p>
  
  <pre><code>/imager/resources/general/359/Golden-Retriever-Isolated_b4a9cbfcf0e16c2bbe8891faf2f17377.jpg 302w, 
  /imager/resources/general/359/Golden-Retriever-Isolated_46442a24ab3b20705cf025765c954564.jpg 302w, 
  /imager/resources/general/359/Golden-Retriever-Isolated_dc3d89e10897fe49613e23ec867b72c7.jpg 302w, 
  /imager/resources/general/359/Golden-Retriever-Isolated_13d85085a2b68d4289e86166bdc76d2f.jpg 302w,
  /imager/resources/general/359/Golden-Retriever-Isolated_033ae678b7fe3957fc7ac9eab98c2dac.jpg 302w, 
  /imager/resources/general/359/Golden-Retriever-Isolated_78f5cce99e1c3c7765fb260eb99fceaa.jpg 302w, 
  /imager/resources/general/359/Golden-Retriever-Isolated_3907e8c0ed1757af4be1f9f097fb579b.jpg 302w, 
  /imager/resources/general/359/Golden-Retriever-Isolated_6e4e16791425f7dfc1ab06a09cd800f4.jpg 302w, 
  /imager/resources/general/359/Golden-Retriever-Isolated_042ca14a1382a40b78a83ee7d3f8e3dd.jpg 300w
  </code></pre>
  
  <p>Edit: here is my code as requested.</p>
  
  <pre><code>{% case "image" %}
  {% set image = block.image.first() %}
  {% set transformedImages = craft.imager.transformImage(image, [
          { width: 1680 },
          { width: 1430 },
          { width: 1350 },
          { width: 1150 },
          { width: 840 },
          { width: 715 },
          { width: 660 },
          { width: 450},
          { width: 300}
      ], { mode: 'fit' })
  %}
  &lt;figure{%- if block.position != "full" %} class="img-{{ block.position }}--small"{% endif -%}&gt;
      &lt;img
          src="{{ craft.imager.transformImage(image, { width: 715, mode: 'fit' }) }}"
          srcset="{{ craft.imager.srcset(transformedImages) }}"
          sizes="{{ (block.position == 'full') ? '(max-width: 60em) 100vw, 61.5vw' : '(max-width: 37.5em) 100vw, (max-width: 81.25em) 30vw, 400px'  }}"
          alt="{{ image.altText ?: image.title }}"
      /&gt;
      {% if block.caption|length %}
      &lt;figcaption class="figcaption"&gt;
          {{ block.caption }}
      &lt;/figcaption&gt;
      {% endif %}
  &lt;/figure&gt;
  </code></pre>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-11-09T20:14:00.073Z
Comments.Text: Can you show all your code?
Comments.UserDisplayName: Nutmeg
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-11-09T21:11:08.387Z
Comments.Text: I'd call that a bug. Do you mind adding an issue to the repo?
Comments.UserDisplayName: André Elvan
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-11-09T22:11:08.657Z
Comments.Text: I have added the code into the original question.
  @AndréElvan I will post on the Repo now.
Comments.UserDisplayName: Terry Upton
Tags: <image-transforms><responsive-images><plugin-imager>
Title: Responsive images using Imager when original asset isn't large enough
ThreadText: # Responsive images using Imager when original asset isn't large enough
  
  (Asked by: username_0 on 2016-11-09)
  
  Anyone here using the Imager plugin and creating responsive images using srcset and sizes?
  Any ideas on how to avoid creating multiple versions of the same image if the original asset uploaded is smaller than the set transforms? I added the setting `'allowUpscale' => false,` but this has resulted in 7 versions of the same image (same dimensions etc)
  <https://github.com/aelvan/Imager-Craft>
  
  For example:
  
  ```
  /imager/resources/general/359/Golden-Retriever-Isolated_b4a9cbfcf0e16c2bbe8891faf2f17377.jpg 302w, 
  /imager/resources/general/359/Golden-Retriever-Isolated_46442a24ab3b20705cf025765c954564.jpg 302w, 
  /imager/resources/general/359/Golden-Retriever-Isolated_dc3d89e10897fe49613e23ec867b72c7.jpg 302w, 
  /imager/resources/general/359/Golden-Retriever-Isolated_13d85085a2b68d4289e86166bdc76d2f.jpg 302w,
  /imager/resources/general/359/Golden-Retriever-Isolated_033ae678b7fe3957fc7ac9eab98c2dac.jpg 302w, 
  /imager/resources/general/359/Golden-Retriever-Isolated_78f5cce99e1c3c7765fb260eb99fceaa.jpg 302w, 
  /imager/resources/general/359/Golden-Retriever-Isolated_3907e8c0ed1757af4be1f9f097fb579b.jpg 302w, 
  /imager/resources/general/359/Golden-Retriever-Isolated_6e4e16791425f7dfc1ab06a09cd800f4.jpg 302w, 
  /imager/resources/general/359/Golden-Retriever-Isolated_042ca14a1382a40b78a83ee7d3f8e3dd.jpg 300w
  
  ```
  
  Edit: here is my code as requested.
  
  ```
  {% case "image" %}
  {% set image = block.image.first() %}
  {% set transformedImages = craft.imager.transformImage(image, [
          { width: 1680 },
          { width: 1430 },
          { width: 1350 },
          { width: 1150 },
          { width: 840 },
          { width: 715 },
          { width: 660 },
          { width: 450},
          { width: 300}
      ], { mode: 'fit' })
  %}
  <figure{%- if block.position != "full" %} class="img-{{ block.position }}--small"{% endif -%}>
      <img
          src="{{ craft.imager.transformImage(image, { width: 715, mode: 'fit' }) }}"
          srcset="{{ craft.imager.srcset(transformedImages) }}"
          sizes="{{ (block.position == 'full') ? '(max-width: 60em) 100vw, 61.5vw' : '(max-width: 37.5em) 100vw, (max-width: 81.25em) 30vw, 400px'  }}"
          alt="{{ image.altText ?: image.title }}"
      />
      {% if block.caption|length %}
      <figcaption class="figcaption">
          {{ block.caption }}
      </figcaption>
      {% endif %}
  </figure>
  
  ```
  
  **Tags:** image-transforms, responsive-images, plugin-imager
  
  > **Comments:**
  > **username_1**: Can you show all your code?  
  > **username_2**: I'd call that a bug. Do you mind adding an issue to the repo?  
  > **username_0**: I have added the code into the original question. @username_2 I will post on the Repo now.  
  
  ---
  
  ## 0 answers
  
  