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don't NULL out buffer data, just draw less

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Stephen Birarda 2013-04-01 17:25:31 -07:00
parent ec6b8d2016
commit 761daf684f
1 changed files with 0 additions and 2 deletions
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2
interface/src/VoxelSystem.cpp
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@ -237,11 +237,9 @@ void VoxelSystem::render() {
if (pthread_mutex_trylock(&bufferWriteLock) == 0) { if (pthread_mutex_trylock(&bufferWriteLock) == 0) {
glBindBuffer(GL_ARRAY_BUFFER, vboVerticesID); glBindBuffer(GL_ARRAY_BUFFER, vboVerticesID);
glBufferData(GL_ARRAY_BUFFER, VERTEX_POINTS_PER_VOXEL * sizeof(GLfloat) * MAX_VOXELS_PER_SYSTEM, NULL, GL_DYNAMIC_DRAW);
glBufferSubData(GL_ARRAY_BUFFER, 0, (readVerticesEndPointer - readVerticesArray) * sizeof(GLfloat), readVerticesArray); glBufferSubData(GL_ARRAY_BUFFER, 0, (readVerticesEndPointer - readVerticesArray) * sizeof(GLfloat), readVerticesArray);
glBindBuffer(GL_ARRAY_BUFFER, vboColorsID); glBindBuffer(GL_ARRAY_BUFFER, vboColorsID);
glBufferData(GL_ARRAY_BUFFER, VERTEX_POINTS_PER_VOXEL * sizeof(GLubyte) * MAX_VOXELS_PER_SYSTEM, NULL, GL_DYNAMIC_DRAW);
glBufferSubData(GL_ARRAY_BUFFER, 0, (readVerticesEndPointer - readVerticesArray) * sizeof(GLubyte), readColorsArray); glBufferSubData(GL_ARRAY_BUFFER, 0, (readVerticesEndPointer - readVerticesArray) * sizeof(GLubyte), readColorsArray);
readVerticesEndPointer = readVerticesArray; readVerticesEndPointer = readVerticesArray;