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Use glDrawRangeElements, which indicates the range of used indices. It may or

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may not make a difference in performance, but it won't hurt.
This commit is contained in:
Andrzej Kapolka 2013-05-20 17:14:41 -07:00
parent fc238c0382
commit 1be859ede9
1 changed files with 2 additions and 1 deletions
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3
interface/src/VoxelSystem.cpp
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@ -663,7 +663,8 @@ void VoxelSystem::render(bool texture) {
// draw the number of voxels we have
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _vboIndicesID);
glScalef(TREE_SCALE, TREE_SCALE, TREE_SCALE);
glDrawElements(GL_TRIANGLES, 36 * _voxelsInReadArrays, GL_UNSIGNED_INT, 0);
glDrawRangeElementsEXT(GL_TRIANGLES, 0, VERTICES_PER_VOXEL * _voxelsInReadArrays,
36 * _voxelsInReadArrays, GL_UNSIGNED_INT, 0);
glEnable(GL_BLEND);
glDisable(GL_CULL_FACE);