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This presentation by Chujia Wei from Carleton University's School of Computer Science explores advanced techniques in coordinated particle tracing to generate stylized images. By employing concepts from particle systems, this method enables the simulation of dynamic attributes such as position, speed, and direction to create visually appealing designs, akin to scratchboard techniques. Building on previous works, this approach can enhance the coordination of particle movements, allowing for artistic applications like natural textures and complex forms.
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Coordinated Particle Tracing Presenter: Chujia Wei School of Computer Science Carleton University Supervisor: David Mould
Introduction • Stylized images Images created by scratchboard.
Technique – Particle system • Attributes such as • Position • Speed • Direction • Dynamics • Move according to speed and direction • Update attributes over time
Technique – Particle tracing • Conventional particle system Created using “Flame Painter” Created by l. karluk
Technique – Coordinated particle tracing • Parallel curves • Coordinated movement Figures are created by scratchboard.
Technique – Coordinated particle tracing • Additional attribute • Neighbor ID (for coordination) • Additional dynamics • Coordinate with neighbors
Related work • “RenderBots—Multi Agent Systems for Direct Image Generation”, S. Schlechtweg, T. Germer and T. Strothotte, 2005. • “Artistic Tessellations by Growing Curves”, H. Li and D. Mould, 2011.
1. RenderBots—Multi Agent Systems for Direct Image Generation • EdgeBots.
2. Artistic Tessellations by Growing Curves Figure: created by Li and Mould.
Other applications • Creating natural images/textures.
Other applications • Example of creating mushroom gills.
D C B A Algorithm • Basic rules • Coordinated moving system
Algorithm • Birth and death Birth: generate new particles from an existing one. Death: merge one particle with its neighbor.
Using input images (plan) • Match tones • Particle spacing based on intensity Created by photoshop
Emit particles at proper position • Emit at edges/ stipple points Right figure: created by Mould
Shape objects • Gradient based direction Right figure: created by Li and Mould
References • [1] H. Li and D. Mould, “Artistic Tessellations by Growing Curves”, Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Non-Photorealistic Animation and Rendering, page 125-134, 2011. • [2] S. Schlechtweg, T. Germer and T. Strothotte, “RenderBots—Multi Agent Systems for Direct Image Generation”, Computer Graphics Forum, 2005.
