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clearSphereInVolume

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This commit is contained in:
Seth Alves 2015-05-21 17:04:57 -07:00
parent 478cb40135
commit 8b2d570f3f
2 changed files with 41 additions and 17 deletions
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56
libraries/entities-renderer/src/RenderablePolyVoxEntityItem.cpp
View file

@ -50,29 +50,48 @@ void RenderablePolyVoxEntityItem::setVoxelVolumeSize(glm::vec3 voxelVolumeSize)
_volData = new PolyVox::SimpleVolume<uint8_t>(PolyVox::Region(lowCorner, highCorner));
}
void createSphereInVolume(PolyVox::SimpleVolume<uint8_t>& volData, float fRadius) {
// This vector hold the position of the center of the volume
PolyVox::Vector3DFloat v3dVolCenter(volData.getWidth() / 2, volData.getHeight() / 2, volData.getDepth() / 2);
void RenderablePolyVoxEntityItem::createSphereInVolume(glm::vec3 center, float radius) {
// This three-level for loop iterates over every voxel in the volume
for (int z = 0; z < volData.getDepth(); z++) {
for (int y = 0; y < volData.getHeight(); y++) {
for (int x = 0; x < volData.getWidth(); x++) {
for (int z = 0; z < _volData->getDepth(); z++) {
for (int y = 0; y < _volData->getHeight(); y++) {
for (int x = 0; x < _volData->getWidth(); x++) {
// Store our current position as a vector...
PolyVox::Vector3DFloat v3dCurrentPos(x,y,z);
glm::vec3 pos(x, y, z);
// And compute how far the current position is from the center of the volume
float fDistToCenter = (v3dCurrentPos - v3dVolCenter).length();
uint8_t uVoxelValue = 0;
float fDistToCenter = glm::distance(pos, center);
uint8_t uVoxelValue = _volData->getVoxelAt(x, y, z);
// If the current voxel is less than 'radius' units from the center then we make it solid.
if(fDistToCenter <= fRadius) {
if (fDistToCenter <= radius) {
// Our new voxel value
uVoxelValue = 255;
}
// Wrte the voxel value into the volume
volData.setVoxelAt(x, y, z, uVoxelValue);
_volData->setVoxelAt(x, y, z, uVoxelValue);
}
}
}
}
void RenderablePolyVoxEntityItem::clearSphereInVolume(glm::vec3 center, float radius) {
// This three-level for loop iterates over every voxel in the volume
for (int z = 0; z < _volData->getDepth(); z++) {
for (int y = 0; y < _volData->getHeight(); y++) {
for (int x = 0; x < _volData->getWidth(); x++) {
// Store our current position as a vector...
glm::vec3 pos(x, y, z);
// And compute how far the current position is from the center of the volume
float fDistToCenter = glm::distance(pos, center);
uint8_t uVoxelValue = _volData->getVoxelAt(x, y, z);
// If the current voxel is less than 'radius' units from the center then we make it solid.
if (fDistToCenter <= radius) {
// Our new voxel value
uVoxelValue = 0;
}
// Wrte the voxel value into the volume
_volData->setVoxelAt(x, y, z, uVoxelValue);
}
}
}
@ -84,9 +103,12 @@ void RenderablePolyVoxEntityItem::getModel() {
setVoxelVolumeSize(_voxelVolumeSize);
}
// PolyVox::SimpleVolume<uint8_t> volData(PolyVox::Region(PolyVox::Vector3DInt32(0,0,0),
// PolyVox::Vector3DInt32(63, 63, 63)));
createSphereInVolume(*_volData, 15);
glm::vec3 center(_volData->getDepth() / 2.0f,
_volData->getHeight() / 2.0f,
_volData->getWidth() / 2.0f);
createSphereInVolume(center, 15);
createSphereInVolume(center + glm::vec3(8.0f, 0.0f, 0.0f), 15);
clearSphereInVolume(center + glm::vec3(4.0f, 0.0f, 4.0f), 15);
// A mesh object to hold the result of surface extraction
PolyVox::SurfaceMesh<PolyVox::PositionMaterialNormal> polyVoxMesh;

2
libraries/entities-renderer/src/RenderablePolyVoxEntityItem.h
View file

@ -31,6 +31,8 @@ public:
void getModel();
virtual void setVoxelVolumeSize(glm::vec3 voxelVolumeSize);
void createSphereInVolume(glm::vec3 center, float radius);
void clearSphereInVolume(glm::vec3 center, float radius);
private:
PolyVox::SimpleVolume<uint8_t>* _volData = nullptr;