![\"200*200](\"http:\/\/www.ludumdare.com\/compo\/wp-content\/uploads\/2010\/04\/Screenshot-1.png\")
<\/a>200*200 heightfield, with 2 triangles per cell --> 80000 polys, rendered twice (filled, outlined)<\/p><\/div>\n
runs at about 4 fps. Laaaame.<\/p>\n
OK now I never did 3D before, so maybe I’m just not doing it rite (insert kitty picture).<\/p>\n
- \n
- Vertex Arrays not supposed to be used like that? For now I have all the coordinates of all vertices of all polys one after the other into a 1D array of size (n tris * 3 vertices * 3 coordinates). So lots of vertices are repeated. Is that wrong? I see we can also use glDrawElements() to avoid repeating vertices, but that implies using an array of vertex indices. Would that be faster?<\/li>\n
- Better technique than vertex arrays?<\/li>\n
- Just plain too much polys, try to do level of detail, or manual clipping before drawing?<\/li>\n
- Get rid of the nice outline (um, which gives as about 5 more fps…)?<\/li>\n <\/ul>\n
For now I’ll just reduce the size, try to get some proper terrain generation, and gameplay into that. Cause yeah, it’s supposed to be\u00a0 a game at some point…<\/p>\n \n
Tags: screenshot<\/a><\/p>","time":"April 24th, 2010 5:35 am","title":"LuaGL performance fail!"}