On Thu, Oct 27, 2011 at 1:57 PM, Latimerius <[email protected]> wrote: > 2011/10/27 John Davis <[email protected]>: >> Latimerius, >> >> I think you are correct. There is another section of the xml file: >> <triangles count="12" material="Material2"> >> <input offset="0" semantic="VERTEX" source="#ID7" /> >> <p>0 1 2 1 0 3 4 5 6 5 4 7 8 9 10 9 8 11 12 13 14 >> 13 12 15 16 17 18 17 16 19 20 21 22 21 20 23</p> >> </triangles> >> >> I did not notice until your note. I looked at it further. The >> numbers are not consecutive. It starts off as >> 0 1 2 and ends in 23 but it appears that it is saying triangle >> 4(counting from 1) is specified by three vertices encoded at offset >> 1. > > Actually, it is saying the first triangle has vertices 0, 1 and 2, the > second one 1, 0 and 3, the next one 4, 5 and 6 etc. The vertex > indices run from 0 to 23 for 24 vertices. > >> I'll see if I can use this. Be right back. > > I'm not as familiar with GL ES yet but in full GL you'd render indexed > data by calling glEnableClientState (GL_INDEX_ARRAY) then > glIndexPointer() and glDrawElements(). >
That is what I kind of what I tried to do (I used GL_VERTEX_ARRAY, INDEX_ARRAY was not there.): Using this as a guide: http://www.songho.ca/opengl/gl_vertexarray.html public void draw(GL10 gl) { // http://pyopengl.sourceforge.net/documentation/ref/gl/vertexpointer.html gl.glEnableClientState(GL10.GL_VERTEX_ARRAY); gl.glVertexPointer(3, GL10.GL_FLOAT, 0, mVertexBuffer); gl.glDrawElements(GL10.GL_TRIANGLES, 24, GL10.GL_FIXED, mIndicesBuffer); // mode, count, type, indices gl.glDisableClientState(GL10.GL_VERTEX_ARRAY); } It did not display anything though. -- John F. Davis 独树一帜 -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
