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allow the bad triangles to render

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This commit is contained in:
Stephen Birarda 2013-03-29 15:18:34 -07:00
parent e5a31bc174
commit b5d1ae1a36
1 changed files with 11 additions and 18 deletions
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29
interface/src/VoxelSystem.cpp
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@ -107,7 +107,7 @@ void VoxelSystem::setupNewVoxelsForDrawing() {
void VoxelSystem::copyWrittenDataToReadArrays() {
// lock on the buffer write lock so we can't modify the data when the GPU is reading it
pthread_mutex_lock(&bufferWriteLock);
// store a pointer to the current end so it doesn't change during copy
GLfloat *endOfCurrentVerticesData = writeVerticesEndPointer;
// copy the vertices and colors
@ -116,7 +116,6 @@ void VoxelSystem::copyWrittenDataToReadArrays() {
// set the read vertices end pointer to the correct spot so the GPU knows how much to pull
readVerticesEndPointer = readVerticesArray + (endOfCurrentVerticesData - writeVerticesArray);
pthread_mutex_unlock(&bufferWriteLock);
}
int VoxelSystem::treeToArrays(VoxelNode *currentNode, float nodePosition[3]) {
@ -233,22 +232,16 @@ void VoxelSystem::render() {
if (readVerticesEndPointer != readVerticesArray) {
// try to lock on the buffer write
// just avoid pulling new data if it is currently being written
if (pthread_mutex_trylock(&bufferWriteLock) == 0) {
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);
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);
readVerticesEndPointer = readVerticesArray;
pthread_mutex_unlock(&bufferWriteLock);
}
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);
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);
readVerticesEndPointer = readVerticesArray;
}
// tell OpenGL where to find vertex and color information