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just adding one triangle per point now

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ericrius1 2015-06-25 11:56:51 -07:00
parent c6baca35b9
commit e6f9d49eb7
1 changed files with 18 additions and 8 deletions
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26
libraries/entities-renderer/src/RenderableQuadEntityItem.cpp
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@ -33,20 +33,30 @@ QuadEntityItem(entityItemID, properties) {
void RenderableQuadEntityItem::updateGeometry() {
if(_quadVertices.size() < 4) {
if(_quadVertices.size() < 1) {
return;
}
// qDebug() << "num points: " << _points.size();
// qDebug() << "num quad vertices" << _quadVertices.size();
if (_pointsChanged) {
_verticesBuffer.reset(new gpu::Buffer());
_numVertices = 0;
for (int i = 0; i < _quadVertices.size(); i+=4) {
_verticesBuffer->append(sizeof(glm::vec3), (const gpu::Byte*)&_quadVertices.at(i));
_verticesBuffer->append(sizeof(glm::vec3), (const gpu::Byte*)&_quadVertices.at(i + 1));
_verticesBuffer->append(sizeof(glm::vec3), (const gpu::Byte*)&_quadVertices.at(i + 2));
_verticesBuffer->append(sizeof(glm::vec3), (const gpu::Byte*)&_quadVertices.at(i + 3));
_numVertices += 4;
_verticesBuffer.reset(new gpu::Buffer());
_verticesBuffer->append(sizeof(glm::vec3), (const gpu::Byte*)&_quadVertices.at(0));
_verticesBuffer->append(sizeof(glm::vec3), (const gpu::Byte*)&_quadVertices.at(1));
_verticesBuffer->append(sizeof(glm::vec3), (const gpu::Byte*)&_quadVertices.at(2));
_verticesBuffer->append(sizeof(glm::vec3), (const gpu::Byte*)&_quadVertices.at(3));
_numVertices = 4;
glm::vec3 point, v1;
for (int i = 1; i < _points.size(); i++) {
point = _points.at(i);
if(i % 2 == 0) {
v1 = {point.x - _lineWidth, point.y, point.z};
} else {
v1 = {point.x + _lineWidth, point.y, point.z};
}
_verticesBuffer->append(sizeof(glm::vec3), (const gpu::Byte*)&v1);
_numVertices ++;
}
_pointsChanged = false;
}