Android OpenGL-ES 2.0 ball animation
- Tila: Closed
- Palkinto: $50
- Vastaanotetut työt: 3
- Voittaja: andrecachola
Kilpailun tehtävänanto
The objective of this contest is to draw a ball trail animation in an Android OpenGL-ES 2.0 application.
An example of a trail effect that needs to be generated is shown in the video ball.mp4. The objective is to do the same with OpenGL-ES 2.0. The ball goes through a magic wall in the middle so there is an intentional discontinuity.
An Android application example is provided on which the green rectangles are drawn in OpenGL-ES 2.0 as well as the balls in yellow. See app.png and run the app.apk on a recent Android device.
The contest consists to draw the balls with the trail in pure OpenGL-ES 2.0 using the provided Android application as a base.
The Android application example is composed of:
- aiOpenGLESBall.zip, the whole eclipse project
- app.apk, the compiled version
- AndroidManifest.xml, a simple manifest
- data.txt, a text file with the locations at each frame of the green rectangles and the balls using the following format: rectangle_left_x, rectangle_left_y, ball_left_x, ball_left_y, rectangle_right_x, rectangle_right_y, ball_right_x, ball_right_y
- Main.java, the whole java / OpenGL ES 2.0 source code drawing the green rectangles as well as the balls. Read the code to better understand the application example.
Use of "complex" frameworks such as Unity is not acceptable. Ideally, the trail should be drawn from scratch in OpenGL ES 2.0. If you have in mind a framework that is open-source and can be integrated into an Android application, it will be considered. Please, provide details in your submission. Also, very important, only version 2.0 of OpenGL ES needs to be used. No other version will be accepted.
The ball trail should be "simple" and clean with a blending alpha effect. This is not a game, so no explosion or spark... It should be as smooth as possible.
To compete in this contest, you need to provide a screenshot of your modified Android application and a copy of your modified apk binaries.
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