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JohnnyCode

how to draw a moving object trace path?

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ATEFred    1700

One approach is have attractors on the start and end of your trace creating object ( such as the hilt and tip of a sword ), and create bands of geometry every frame from these attractor positions. Simplest form of that is one band being 2 verts, one for each attractor / end of the band, have a dynamic vertex buffer which you fill up with all active band vertices, from newest to oldest ( or the other way around ). You can use vertex colours for fading it out. Then render it as a tri strip, and job done :)

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