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<p><strong>GSoC Week4 Status</strong></p>
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<p>YimingWu</p>
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<p>Oh here is the wiki link: <a class="OWAAutoLink" id="LPlnk634232" href="https://wiki.blender.org/index.php/User:Yiming/GSoC_2018/Week4" previewremoved="true">
https://wiki.blender.org/index.php/User:Yiming/GSoC_2018/Week4</a></p>
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<p><strong>Things have done</strong></p>
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<p>1. Basic DPIX algorithm implemented. Occlsion test is done directly through depth buffer and polygonoffset(to avoid z-fighting). Depth sampling method seems not quite necessary for generating normal lines.</p>
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2. Seperated sorce code into several new files for better organization.</p>
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3. Fixed several bugs caused by optimization, including depth lost and taper option not working.</p>
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4. Used GL_LINE_SMOOTH and GL_POLYGON_SMOOTH to achieve basic anti-alias. (later I was informed that Multisample texture is supported by blender's api.)</p>
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<p>Screenshots and videos! (many people have been following the project's status on twitter, you might have seen most of the images.)</p>
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<p><strong>Next week</strong></p>
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<p>1. I'm currently making some ui concepts for NPR rendering control during this weekend.</p>
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2. Must fix normal matrix problem in DPIX, currently not-one scale factor will cause strange behavior....</p>
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3. Redo the multisample shader. should be very quick. (also, this feature can be enable/disabled by user, and the choosing of multisample quality should also be implemented)</p>
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4. camera distance, light controlled line thickness and transparency should be implemented.</p>
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5. Material seperate lines and edge marks should be implemented.</p>
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6. Rendering should accept post-modifier mesh. Morphing animation should be supported by then.</p>
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7. Dash line style or textured line style need further research, expecially when DPIX algorithm doesn't natually produce continuous line.</p>
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<p><strong>Questions</strong></p>
<p>I have listed questions (and some answers) here in a seperate wiki page. <a class="OWAAutoLink" id="LPlnk120400" href="https://wiki.blender.org/index.php/User:Yiming/GSoC_2018/Questions" previewremoved="true">
https://wiki.blender.org/index.php/User:Yiming/GSoC_2018/Questions</a> </p>
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<p>Regards,</p>
<p>YimingWu</p>
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