3
votes
2answers
1k views

OpenGL ES 2.0: 2D game rendering, no performance gain with glDraw call batching

I just did a small benchmark. To my surprise batching sprites into a single draw call doesn't give any significant performance boost. Following are my results: Hardware: iPod touch 4 Extra info: ...
3
votes
2answers
2k views

Point Sprites vs Textured Quads in Open GLES 2.0

I'm wondering what would perform better, point sprites (GL_POINTS) or regular sprites (GL_TRIANGLES). Here's the scenario: I am developing a simple particle system to allow me to produce various ...
0
votes
1answer
378 views

To stop Spite animation scrolling along the background in openGL ES

After using the endless road algorithm as described here, I also implemented the scrolling of walls along with it. I have the walk animation of the person which is stationed at the center of the ...
1
vote
1answer
896 views

Sprite animation in openGL - Some frames are being skipped

Earlier, I was facing problems on implementing sprite animation in openGL ES. Now its being sorted up. But the problem that i am facing now is that some of my frames are being skipped when a bullet(a ...
4
votes
2answers
422 views

Geometry vs sprites

I'm developing an android game, where the enemies are geometrical shapes. Performance is a main goal for me so I was wondering if defining shapes directly in OpenGL would be more efficient than using ...
3
votes
2answers
1k views

What is causing these visual artifacts on my OpenGL sprites?

What could be the cause of the defects in my characters sprite? I am using OpenGL ES 2.0. I draw my sprites in a sprite batch that uses UV coordinates from one large texture atlas. If you look around ...
2
votes
1answer
2k views

OpenGLES 2.0: Rendering Multiple Sprites - Texel Corruption

I'm having a tremendous time getting the second (or additional) sprites in my game engine to render properly. The first one always works great: it is positioned and sized properly in screen coords, ...