本文整理汇总了C++中VoxelTreeElement::getDensity方法的典型用法代码示例。如果您正苦于以下问题：C++ VoxelTreeElement::getDensity方法的具体用法？C++ VoxelTreeElement::getDensity怎么用？C++ VoxelTreeElement::getDensity使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类VoxelTreeElement的用法示例。
在下文中一共展示了VoxelTreeElement::getDensity方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: calculateAverageFromChildren
// will average the child colors...
void VoxelTreeElement::calculateAverageFromChildren() {
int colorArray[4] = {0,0,0,0};
float density = 0.0f;
for (int i = 0; i < NUMBER_OF_CHILDREN; i++) {
VoxelTreeElement* childAt = getChildAtIndex(i);
if (childAt && childAt->isColored()) {
for (int j = 0; j < 3; j++) {
colorArray[j] += childAt->getTrueColor()[j]; // color averaging should always be based on true colors
}
colorArray[3]++;
}
if (childAt) {
density += childAt->getDensity();
}
}
density /= (float) NUMBER_OF_CHILDREN;
//
// The VISIBLE_ABOVE_DENSITY sets the density of matter above which an averaged color voxel will
// be set. It is an important physical constant in our universe. A number below 0.5 will cause
// things to get 'fatter' at a distance, because upward averaging will make larger voxels out of
// less data, which is (probably) going to be preferable because it gives a sense that there is
// something out there to go investigate. A number above 0.5 would cause the world to become
// more 'empty' at a distance. Exactly 0.5 would match the physical world, at least for materials
// that are not shiny and have equivalent ambient reflectance.
//
const float VISIBLE_ABOVE_DENSITY = 0.10f;
nodeColor newColor = { 0, 0, 0, 0};
if (density > VISIBLE_ABOVE_DENSITY) {
// The density of material in the space of the voxel sets whether it is actually colored
for (int c = 0; c < 3; c++) {
// set the average color value
newColor[c] = colorArray[c] / colorArray[3];
}
// set the alpha to 1 to indicate that this isn't transparent
newColor[3] = 1;
}
// Set the color from the average of the child colors, and update the density
setColor(newColor);
setDensity(density);
}