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attempt to make sure the ray that picks against polyvox entities is long enough

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This commit is contained in:
Seth Alves 2015-05-27 14:57:12 -07:00
parent 386b3301f4
commit 1109444c3d
2 changed files with 11 additions and 4 deletions
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2
cmake/externals/tbb/CMakeLists.txt vendored
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@ -57,8 +57,6 @@ ExternalProject_Get_Property(${EXTERNAL_NAME} SOURCE_DIR)
string(TOUPPER ${EXTERNAL_NAME} EXTERNAL_NAME_UPPER)
message("HERE in tbb")
if (APPLE)
set(_TBB_LIB_DIR "${SOURCE_DIR}/lib")
set(_LIB_PREFIX "lib")

13
libraries/entities-renderer/src/RenderablePolyVoxEntityItem.cpp
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@ -33,6 +33,7 @@
#include "EntityTreeRenderer.h"
#include "RenderablePolyVoxEntityItem.h"
EntityItemPointer RenderablePolyVoxEntityItem::factory(const EntityItemID& entityID, const EntityItemProperties& properties) {
return EntityItemPointer(new RenderablePolyVoxEntityItem(entityID, properties));
}
@ -255,8 +256,13 @@ bool RenderablePolyVoxEntityItem::findDetailedRayIntersection(const glm::vec3& o
PolyVox::Vector3DFloat start(originInVoxel[0], originInVoxel[1], originInVoxel[2]);
PolyVox::Vector3DFloat pvDirection(directionInVoxel[0], directionInVoxel[1], directionInVoxel[2]);
pvDirection.normalise();
// pvDirection *= 1000.0f; // Casts ray of length 1000
pvDirection *= 64.0f; // Casts ray of length 1000
// the PolyVox ray intersection code requires a near and far point.
glm::vec3 scale = _dimensions / _voxelVolumeSize; // meters / voxel-units
float distanceToEntity = glm::distance(origin, _position);
float largestDimension = glm::max(_dimensions[0], _dimensions[1], _dimensions[2]);
// set ray cast length to long enough to cover all of the voxel space
pvDirection *= (distanceToEntity + largestDimension) / glm::min(scale[0], scale[1], scale[2]);
PolyVox::RaycastResult raycastResult;
RaycastFunctor callback;
@ -275,6 +281,8 @@ bool RenderablePolyVoxEntityItem::findDetailedRayIntersection(const glm::vec3& o
}
// compress the data in _volData and save the results. The compressed form is used during
// saves to disk and for transmission over the wire
void RenderablePolyVoxEntityItem::compressVolumeData() {
int rawSize = _volData->getDepth() * _volData->getHeight() * _volData->getWidth();
QByteArray uncompressedData = QByteArray(rawSize, '\0');
@ -303,6 +311,7 @@ void RenderablePolyVoxEntityItem::compressVolumeData() {
}
// take compressed data and decompreess it into _volData.
void RenderablePolyVoxEntityItem::decompressVolumeData() {
int rawSize = _volData->getDepth() * _volData->getHeight() * _volData->getWidth();
QByteArray uncompressedData = QByteArray(rawSize, '\0');