June 2013
Intermediate to advanced
346 pages
8h 42m
English
Content preview from OpenGL ES 2 for Android
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Occluding Hidden Objects
We now have everything in place, so let’s run the app to see what happens. You might be surprised to find that the terrain doesn’t show up at all! Let’s take a look at onDrawFrame to see what might be going on:
| Heightmap/src/com/particles/android/ParticlesRenderer.java | |
| | glClear(GL_COLOR_BUFFER_BIT); |
| | drawHeightmap(); |
| | drawSkybox(); |
| | drawParticles(); |
We first draw the height map, but then we draw the skybox right after, obliterating everything that was there before. Switch the two draw calls so that the skybox is drawn first and the height map is drawn second, and see what happens.
The terrain should now show up, but you’ll likely see some strange artifacts, as seen in Figure 60, Terrain with strange artifacts. The reason ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.