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| author | Wolfgang Draxinger <Wolfgang.Draxinger@draxit.de> | 2014-11-25 09:41:12 +0100 |
|---|---|---|
| committer | Wolfgang Draxinger <Wolfgang.Draxinger@draxit.de> | 2014-11-25 09:41:12 +0100 |
| commit | ff5c0c58953aa679b2b794906428f8a7cd2b2696 (patch) | |
| tree | 8a88d7e23c312fc3f29b76e842db1bd0a8f650dc | |
| parent | b62b7bf28ec0069e6f460fa0f07b64a0dba72557 (diff) | |
| download | codesamples-ff5c0c58953aa679b2b794906428f8a7cd2b2696.tar.gz codesamples-ff5c0c58953aa679b2b794906428f8a7cd2b2696.tar.bz2 | |
solid arrowheads in frustum
| -rw-r--r-- | samples/OpenGL/frustum/frustum.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/samples/OpenGL/frustum/frustum.c b/samples/OpenGL/frustum/frustum.c index 2728cee..5e70382 100644 --- a/samples/OpenGL/frustum/frustum.c +++ b/samples/OpenGL/frustum/frustum.c @@ -168,10 +168,12 @@ void draw_arrow( by + (-0.866*d[1] - 0.5*b[1])*bh, bz + (-0.866*d[2] - 0.5*b[2])*bh } }; - GLushort const idx[][2] = { + GLushort const idx_line[][2] = { {0, 1}, - {0, 2}, {0, 3}, - {1, 4}, {1, 5} + }; + GLushort const idx_heads[][3] = { + {0, 2, 3}, + {1, 4, 5} }; glDisableClientState(GL_COLOR_ARRAY); glDisableClientState(GL_NORMAL_ARRAY); @@ -180,7 +182,8 @@ void draw_arrow( glEnableClientState(GL_VERTEX_ARRAY); glVertexPointer(3, GL_FLOAT, 0, pos); - glDrawElements(GL_LINES, 2*5, GL_UNSIGNED_SHORT, idx); + glDrawElements(GL_LINES, 2, GL_UNSIGNED_SHORT, idx_line); + glDrawElements(GL_TRIANGLES, 2*3, GL_UNSIGNED_SHORT, idx_heads); glDisableClientState(GL_VERTEX_ARRAY); if(annotation) { |