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path: root/indra/newview/llvosurfacepatch.cpp
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-rw-r--r--indra/newview/llvosurfacepatch.cpp224
1 files changed, 146 insertions, 78 deletions
diff --git a/indra/newview/llvosurfacepatch.cpp b/indra/newview/llvosurfacepatch.cpp
index 15fabf0414..9544450a69 100644
--- a/indra/newview/llvosurfacepatch.cpp
+++ b/indra/newview/llvosurfacepatch.cpp
@@ -39,6 +39,7 @@
#include "llviewerobjectlist.h"
#include "llviewerregion.h"
#include "llvlcomposition.h"
+#include "llvolume.h"
#include "llvovolume.h"
#include "pipeline.h"
#include "llspatialpartition.h"
@@ -241,48 +242,50 @@ BOOL LLVOSurfacePatch::updateLOD()
return TRUE;
}
-void LLVOSurfacePatch::getGeometry(LLStrider<LLVector3> &verticesp,
- LLStrider<LLVector3> &normalsp,
- LLStrider<LLVector2> &texCoords0p,
- LLStrider<LLVector2> &texCoords1p,
- LLStrider<U16> &indicesp)
+void LLVOSurfacePatch::getTerrainGeometry(LLStrider<LLVector3> &verticesp,
+ LLStrider<LLVector3> &normalsp,
+ LLStrider<LLVector2> &texCoords0p,
+ LLStrider<LLVector2> &texCoords1p,
+ LLStrider<U16> &indicesp)
{
LLFace* facep = mDrawable->getFace(0);
- if (facep)
- {
- U32 index_offset = facep->getGeomIndex();
-
- updateMainGeometry(facep,
- verticesp,
- normalsp,
- texCoords0p,
- texCoords1p,
- indicesp,
- index_offset);
- updateNorthGeometry(facep,
- verticesp,
- normalsp,
- texCoords0p,
- texCoords1p,
- indicesp,
- index_offset);
- updateEastGeometry(facep,
- verticesp,
- normalsp,
- texCoords0p,
- texCoords1p,
- indicesp,
- index_offset);
- }
+ if (!facep)
+ {
+ return;
+ }
+
+ U32 index_offset = facep->getGeomIndex();
+
+ updateMainGeometry(facep,
+ verticesp,
+ normalsp,
+ texCoords0p,
+ texCoords1p,
+ indicesp,
+ index_offset);
+ updateNorthGeometry(facep,
+ verticesp,
+ normalsp,
+ texCoords0p,
+ texCoords1p,
+ indicesp,
+ index_offset);
+ updateEastGeometry(facep,
+ verticesp,
+ normalsp,
+ texCoords0p,
+ texCoords1p,
+ indicesp,
+ index_offset);
}
void LLVOSurfacePatch::updateMainGeometry(LLFace *facep,
- LLStrider<LLVector3> &verticesp,
- LLStrider<LLVector3> &normalsp,
- LLStrider<LLVector2> &texCoords0p,
- LLStrider<LLVector2> &texCoords1p,
- LLStrider<U16> &indicesp,
- U32 &index_offset)
+ LLStrider<LLVector3> &verticesp,
+ LLStrider<LLVector3> &normalsp,
+ LLStrider<LLVector2> &texCoords0p,
+ LLStrider<LLVector2> &texCoords1p,
+ LLStrider<U16> &indicesp,
+ U32 &index_offset)
{
S32 i, j, x, y;
@@ -381,12 +384,12 @@ void LLVOSurfacePatch::updateMainGeometry(LLFace *facep,
void LLVOSurfacePatch::updateNorthGeometry(LLFace *facep,
- LLStrider<LLVector3> &verticesp,
- LLStrider<LLVector3> &normalsp,
- LLStrider<LLVector2> &texCoords0p,
- LLStrider<LLVector2> &texCoords1p,
- LLStrider<U16> &indicesp,
- U32 &index_offset)
+ LLStrider<LLVector3> &verticesp,
+ LLStrider<LLVector3> &normalsp,
+ LLStrider<LLVector2> &texCoords0p,
+ LLStrider<LLVector2> &texCoords1p,
+ LLStrider<U16> &indicesp,
+ U32 &index_offset)
{
S32 i, x, y;
@@ -571,12 +574,12 @@ void LLVOSurfacePatch::updateNorthGeometry(LLFace *facep,
}
void LLVOSurfacePatch::updateEastGeometry(LLFace *facep,
- LLStrider<LLVector3> &verticesp,
- LLStrider<LLVector3> &normalsp,
- LLStrider<LLVector2> &texCoords0p,
- LLStrider<LLVector2> &texCoords1p,
- LLStrider<U16> &indicesp,
- U32 &index_offset)
+ LLStrider<LLVector3> &verticesp,
+ LLStrider<LLVector3> &normalsp,
+ LLStrider<LLVector2> &texCoords0p,
+ LLStrider<LLVector2> &texCoords1p,
+ LLStrider<U16> &indicesp,
+ U32 &index_offset)
{
S32 i, x, y;
@@ -982,6 +985,49 @@ LLTerrainPartition::LLTerrainPartition(LLViewerRegion* regionp)
mPartitionType = LLViewerRegion::PARTITION_TERRAIN;
}
+// Do not add vertices; honor strict vertex count specified by strider_vertex_count
+void gen_terrain_tangents(U16 strider_vertex_count,
+ U32 strider_index_count,
+ LLStrider<LLVector3> &verticesp,
+ LLStrider<LLVector3> &normalsp,
+ LLStrider<LLVector4a> &tangentsp,
+ LLStrider<LLVector2> &texCoords0p,
+ LLStrider<U16> &indicesp)
+{
+ LL_PROFILE_ZONE_SCOPED
+
+ LLVector4a *vertices = new LLVector4a[strider_vertex_count];
+ LLVector4a *normals = new LLVector4a[strider_vertex_count];
+ LLVector4a *tangents = new LLVector4a[strider_vertex_count];
+ std::vector<LLVector2> texcoords(strider_vertex_count);
+ std::vector<U16> indices(strider_index_count);
+
+ for (U16 v = 0; v < strider_vertex_count; ++v)
+ {
+ F32 *vert = verticesp[v].mV;
+ vertices[v] = LLVector4a(vert[0], vert[1], vert[2], 1.f);
+ F32 *n = normalsp[v].mV;
+ normals[v] = LLVector4a(n[0], n[1], n[2], 1.f);
+ tangents[v] = tangentsp[v];
+ texcoords[v] = texCoords0p[v];
+ }
+ for (U32 i = 0; i < strider_index_count; ++i)
+ {
+ indices[i] = indicesp[i];
+ }
+
+ LLCalculateTangentArray(strider_vertex_count, vertices, normals, texcoords.data(), strider_index_count / 3, indices.data(), tangents);
+
+ for (U16 v = 0; v < strider_vertex_count; ++v)
+ {
+ tangentsp[v] = tangents[v];
+ }
+
+ delete[] vertices;
+ delete[] normals;
+ delete[] tangents;
+}
+
void LLTerrainPartition::getGeometry(LLSpatialGroup* group)
{
LL_PROFILE_ZONE_SCOPED;
@@ -989,35 +1035,57 @@ void LLTerrainPartition::getGeometry(LLSpatialGroup* group)
LLVertexBuffer* buffer = group->mVertexBuffer;
//get vertex buffer striders
- LLStrider<LLVector3> vertices;
- LLStrider<LLVector3> normals;
- LLStrider<LLVector2> texcoords2;
- LLStrider<LLVector2> texcoords;
- LLStrider<U16> indices;
-
- llassert_always(buffer->getVertexStrider(vertices));
- llassert_always(buffer->getNormalStrider(normals));
- llassert_always(buffer->getTexCoord0Strider(texcoords));
- llassert_always(buffer->getTexCoord1Strider(texcoords2));
- llassert_always(buffer->getIndexStrider(indices));
-
- U32 indices_index = 0;
- U32 index_offset = 0;
-
- for (std::vector<LLFace*>::iterator i = mFaceList.begin(); i != mFaceList.end(); ++i)
- {
- LLFace* facep = *i;
-
- facep->setIndicesIndex(indices_index);
- facep->setGeomIndex(index_offset);
- facep->setVertexBuffer(buffer);
-
- LLVOSurfacePatch* patchp = (LLVOSurfacePatch*) facep->getViewerObject();
- patchp->getGeometry(vertices, normals, texcoords, texcoords2, indices);
-
- indices_index += facep->getIndicesCount();
- index_offset += facep->getGeomCount();
- }
+ LLStrider<LLVector3> vertices_start;
+ LLStrider<LLVector3> normals_start;
+ LLStrider<LLVector4a> tangents_start;
+ LLStrider<LLVector2> texcoords_start;
+ LLStrider<LLVector2> texcoords2_start;
+ LLStrider<U16> indices_start;
+
+ llassert_always(buffer->getVertexStrider(vertices_start));
+ llassert_always(buffer->getNormalStrider(normals_start));
+ llassert_always(buffer->getTangentStrider(tangents_start));
+ llassert_always(buffer->getTexCoord0Strider(texcoords_start));
+ llassert_always(buffer->getTexCoord1Strider(texcoords2_start));
+ llassert_always(buffer->getIndexStrider(indices_start));
+
+ U32 indices_index = 0;
+ U32 index_offset = 0;
+
+ {
+ LLStrider<LLVector3> vertices = vertices_start;
+ LLStrider<LLVector3> normals = normals_start;
+ LLStrider<LLVector2> texcoords = texcoords_start;
+ LLStrider<LLVector2> texcoords2 = texcoords2_start;
+ LLStrider<U16> indices = indices_start;
+
+ for (std::vector<LLFace*>::iterator i = mFaceList.begin(); i != mFaceList.end(); ++i)
+ {
+ LLFace* facep = *i;
+
+ facep->setIndicesIndex(indices_index);
+ facep->setGeomIndex(index_offset);
+ facep->setVertexBuffer(buffer);
+
+ LLVOSurfacePatch* patchp = (LLVOSurfacePatch*) facep->getViewerObject();
+ patchp->getTerrainGeometry(vertices, normals, texcoords, texcoords2, indices);
+
+ indices_index += facep->getIndicesCount();
+ index_offset += facep->getGeomCount();
+ }
+ }
+
+ const bool has_tangents = tangents_start.get() != nullptr;
+ if (has_tangents)
+ {
+ LLStrider<LLVector3> vertices = vertices_start;
+ LLStrider<LLVector3> normals = normals_start;
+ LLStrider<LLVector4a> tangents = tangents_start;
+ LLStrider<LLVector2> texcoords = texcoords_start;
+ LLStrider<U16> indices = indices_start;
+
+ gen_terrain_tangents(index_offset, indices_index, vertices, normals, tangents, texcoords, indices);
+ }
buffer->unmapBuffer();
mFaceList.clear();
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 17:42:11 +0000