void CEntityMiscModel::Rotate( const vec3_t pivot, const vec3_t rotation ){
m4x4_t rotation_matrix;
m4x4_identity( rotation_matrix );
m4x4_pivoted_rotate_by_vec3( rotation_matrix, rotation, eXYZ, pivot );
m4x4_transform_point( rotation_matrix, m_translate );
VectorIncrement( rotation, m_euler );
UpdateCachedData();
}
void aabb_orthogonal_transform(aabb_t* dst, const aabb_t* src, const m4x4_t transform)
{
VectorCopy(src->origin, dst->origin);
m4x4_transform_point(transform, dst->origin);
dst->extents[0] = (vec_t)(fabs(transform[0] * src->extents[0])
+ fabs(transform[4] * src->extents[1])
+ fabs(transform[8] * src->extents[2]));
dst->extents[1] = (vec_t)(fabs(transform[1] * src->extents[0])
+ fabs(transform[5] * src->extents[1])
+ fabs(transform[9] * src->extents[2]));
dst->extents[2] = (vec_t)(fabs(transform[2] * src->extents[0])
+ fabs(transform[6] * src->extents[1])
+ fabs(transform[10] * src->extents[2]));
}
void bbox_for_oriented_aabb(bbox_t *bbox, const aabb_t *aabb, const m4x4_t matrix, const vec3_t euler, const vec3_t scale)
{
double rad[3];
double pi_180 = Q_PI / 180;
double A, B, C, D, E, F, AD, BD;
VectorCopy(aabb->origin, bbox->aabb.origin);
m4x4_transform_point(matrix, bbox->aabb.origin);
bbox->aabb.extents[0] = aabb->extents[0] * scale[0];
bbox->aabb.extents[1] = aabb->extents[1] * scale[1];
bbox->aabb.extents[2] = aabb->extents[2] * scale[2];
rad[0] = euler[0] * pi_180;
rad[1] = euler[1] * pi_180;
rad[2] = euler[2] * pi_180;
A = cos(rad[0]);
B = sin(rad[0]);
C = cos(rad[1]);
D = sin(rad[1]);
E = cos(rad[2]);
F = sin(rad[2]);
AD = A * -D;
BD = B * -D;
bbox->axes[0][0] = (vec_t)(C*E);
bbox->axes[0][1] = (vec_t)(-BD*E + A*F);
bbox->axes[0][2] = (vec_t)(AD*E + B*F);
bbox->axes[1][0] = (vec_t)(-C*F);
bbox->axes[1][1] = (vec_t)(BD*F + A*E);
bbox->axes[1][2] = (vec_t)(-AD*F + B*E);
bbox->axes[2][0] = (vec_t)D;
bbox->axes[2][1] = (vec_t)(-B*C);
bbox->axes[2][2] = (vec_t)(A*C);
bbox_update_radius(bbox);
}
void aabb_for_transformed_aabb(aabb_t* dst, const aabb_t* src, const m4x4_t transform)
{
if(src->extents[0] < 0
|| src->extents[1] < 0
|| src->extents[2] < 0)
{
aabb_clear(dst);
return;
}
VectorCopy(src->origin, dst->origin);
m4x4_transform_point(transform, dst->origin);
dst->extents[0] = (vec_t)(fabs(transform[0] * src->extents[0])
+ fabs(transform[4] * src->extents[1])
+ fabs(transform[8] * src->extents[2]));
dst->extents[1] = (vec_t)(fabs(transform[1] * src->extents[0])
+ fabs(transform[5] * src->extents[1])
+ fabs(transform[9] * src->extents[2]));
dst->extents[2] = (vec_t)(fabs(transform[2] * src->extents[0])
+ fabs(transform[6] * src->extents[1])
+ fabs(transform[10] * src->extents[2]));
}
void ray_transform( ray_t *ray, const m4x4_t matrix ){
m4x4_transform_point( matrix, ray->origin );
m4x4_transform_normal( matrix, ray->direction );
}
static void PopulateWithBSPModel( bspModel_t *model, m4x4_t transform ){
int i, j, x, y, pw[ 5 ], r, nodeNum;
bspDrawSurface_t *ds;
surfaceInfo_t *info;
bspDrawVert_t *verts;
int *indexes;
mesh_t srcMesh, *mesh, *subdivided;
traceInfo_t ti;
traceWinding_t tw;
/* dummy check */
if ( model == NULL || transform == NULL ) {
return;
}
/* walk the list of surfaces in this model and fill out the info structs */
for ( i = 0; i < model->numBSPSurfaces; i++ )
{
/* get surface and info */
ds = &bspDrawSurfaces[ model->firstBSPSurface + i ];
info = &surfaceInfos[ model->firstBSPSurface + i ];
if ( info->si == NULL ) {
continue;
}
/* no shadows */
if ( !info->castShadows ) {
continue;
}
/* patchshadows? */
if ( ds->surfaceType == MST_PATCH && patchShadows == qfalse ) {
continue;
}
/* some surfaces in the bsp might have been tagged as nodraw, with a bogus shader */
if ( ( bspShaders[ ds->shaderNum ].contentFlags & noDrawContentFlags ) ||
( bspShaders[ ds->shaderNum ].surfaceFlags & noDrawSurfaceFlags ) ) {
continue;
}
/* translucent surfaces that are neither alphashadow or lightfilter don't cast shadows */
if ( ( info->si->compileFlags & C_NODRAW ) ) {
continue;
}
if ( ( info->si->compileFlags & C_TRANSLUCENT ) &&
!( info->si->compileFlags & C_ALPHASHADOW ) &&
!( info->si->compileFlags & C_LIGHTFILTER ) ) {
continue;
}
/* setup trace info */
ti.si = info->si;
ti.castShadows = info->castShadows;
ti.surfaceNum = model->firstBSPBrush + i;
ti.skipGrid = ( ds->surfaceType == MST_PATCH );
/* choose which node (normal or skybox) */
if ( info->parentSurfaceNum >= 0 ) {
nodeNum = skyboxNodeNum;
/* sky surfaces in portal skies are ignored */
if ( info->si->compileFlags & C_SKY ) {
continue;
}
}
else{
nodeNum = headNodeNum;
}
/* setup trace winding */
memset( &tw, 0, sizeof( tw ) );
tw.infoNum = AddTraceInfo( &ti );
tw.numVerts = 3;
/* switch on type */
switch ( ds->surfaceType )
{
/* handle patches */
case MST_PATCH:
/* subdivide the surface */
srcMesh.width = ds->patchWidth;
srcMesh.height = ds->patchHeight;
srcMesh.verts = &bspDrawVerts[ ds->firstVert ];
//% subdivided = SubdivideMesh( srcMesh, 8, 512 );
subdivided = SubdivideMesh2( srcMesh, info->patchIterations );
/* fit it to the curve and remove colinear verts on rows/columns */
PutMeshOnCurve( *subdivided );
mesh = RemoveLinearMeshColumnsRows( subdivided );
FreeMesh( subdivided );
/* set verts */
verts = mesh->verts;
/* subdivide each quad to place the models */
for ( y = 0; y < ( mesh->height - 1 ); y++ )
{
for ( x = 0; x < ( mesh->width - 1 ); x++ )
{
/* set indexes */
pw[ 0 ] = x + ( y * mesh->width );
pw[ 1 ] = x + ( ( y + 1 ) * mesh->width );
pw[ 2 ] = x + 1 + ( ( y + 1 ) * mesh->width );
pw[ 3 ] = x + 1 + ( y * mesh->width );
pw[ 4 ] = x + ( y * mesh->width ); /* same as pw[ 0 ] */
/* set radix */
r = ( x + y ) & 1;
/* make first triangle */
VectorCopy( verts[ pw[ r + 0 ] ].xyz, tw.v[ 0 ].xyz );
Vector2Copy( verts[ pw[ r + 0 ] ].st, tw.v[ 0 ].st );
VectorCopy( verts[ pw[ r + 1 ] ].xyz, tw.v[ 1 ].xyz );
Vector2Copy( verts[ pw[ r + 1 ] ].st, tw.v[ 1 ].st );
VectorCopy( verts[ pw[ r + 2 ] ].xyz, tw.v[ 2 ].xyz );
Vector2Copy( verts[ pw[ r + 2 ] ].st, tw.v[ 2 ].st );
m4x4_transform_point( transform, tw.v[ 0 ].xyz );
m4x4_transform_point( transform, tw.v[ 1 ].xyz );
m4x4_transform_point( transform, tw.v[ 2 ].xyz );
FilterTraceWindingIntoNodes_r( &tw, nodeNum );
/* make second triangle */
VectorCopy( verts[ pw[ r + 0 ] ].xyz, tw.v[ 0 ].xyz );
Vector2Copy( verts[ pw[ r + 0 ] ].st, tw.v[ 0 ].st );
VectorCopy( verts[ pw[ r + 2 ] ].xyz, tw.v[ 1 ].xyz );
Vector2Copy( verts[ pw[ r + 2 ] ].st, tw.v[ 1 ].st );
VectorCopy( verts[ pw[ r + 3 ] ].xyz, tw.v[ 2 ].xyz );
Vector2Copy( verts[ pw[ r + 3 ] ].st, tw.v[ 2 ].st );
m4x4_transform_point( transform, tw.v[ 0 ].xyz );
m4x4_transform_point( transform, tw.v[ 1 ].xyz );
m4x4_transform_point( transform, tw.v[ 2 ].xyz );
FilterTraceWindingIntoNodes_r( &tw, nodeNum );
}
}
/* free the subdivided mesh */
FreeMesh( mesh );
break;
/* handle triangle surfaces */
case MST_TRIANGLE_SOUP:
case MST_PLANAR:
/* set verts and indexes */
verts = &bspDrawVerts[ ds->firstVert ];
indexes = &bspDrawIndexes[ ds->firstIndex ];
/* walk the triangle list */
for ( j = 0; j < ds->numIndexes; j += 3 )
{
VectorCopy( verts[ indexes[ j ] ].xyz, tw.v[ 0 ].xyz );
Vector2Copy( verts[ indexes[ j ] ].st, tw.v[ 0 ].st );
VectorCopy( verts[ indexes[ j + 1 ] ].xyz, tw.v[ 1 ].xyz );
Vector2Copy( verts[ indexes[ j + 1 ] ].st, tw.v[ 1 ].st );
VectorCopy( verts[ indexes[ j + 2 ] ].xyz, tw.v[ 2 ].xyz );
Vector2Copy( verts[ indexes[ j + 2 ] ].st, tw.v[ 2 ].st );
m4x4_transform_point( transform, tw.v[ 0 ].xyz );
m4x4_transform_point( transform, tw.v[ 1 ].xyz );
m4x4_transform_point( transform, tw.v[ 2 ].xyz );
FilterTraceWindingIntoNodes_r( &tw, nodeNum );
}
break;
/* other surface types do not cast shadows */
default:
break;
}
}
}
static void PopulateWithPicoModel( int castShadows, picoModel_t *model, m4x4_t transform ){
int i, j, k, numSurfaces, numIndexes;
picoSurface_t *surface;
picoShader_t *shader;
picoVec_t *xyz, *st;
picoIndex_t *indexes;
traceInfo_t ti;
traceWinding_t tw;
/* dummy check */
if ( model == NULL || transform == NULL ) {
return;
}
/* get info */
numSurfaces = PicoGetModelNumSurfaces( model );
/* walk the list of surfaces in this model and fill out the info structs */
for ( i = 0; i < numSurfaces; i++ )
{
/* get surface */
surface = PicoGetModelSurface( model, i );
if ( surface == NULL ) {
continue;
}
/* only handle triangle surfaces initially (fixme: support patches) */
if ( PicoGetSurfaceType( surface ) != PICO_TRIANGLES ) {
continue;
}
/* get shader (fixme: support shader remapping) */
shader = PicoGetSurfaceShader( surface );
if ( shader == NULL ) {
continue;
}
ti.si = ShaderInfoForShaderNull( PicoGetShaderName( shader ) );
if ( ti.si == NULL ) {
continue;
}
/* translucent surfaces that are neither alphashadow or lightfilter don't cast shadows */
if ( ( ti.si->compileFlags & C_NODRAW ) ) {
continue;
}
if ( ( ti.si->compileFlags & C_TRANSLUCENT ) &&
!( ti.si->compileFlags & C_ALPHASHADOW ) &&
!( ti.si->compileFlags & C_LIGHTFILTER ) ) {
continue;
}
/* setup trace info */
ti.castShadows = castShadows;
ti.surfaceNum = -1;
ti.skipGrid = qtrue; // also ignore picomodels when skipping patches
/* setup trace winding */
memset( &tw, 0, sizeof( tw ) );
tw.infoNum = AddTraceInfo( &ti );
tw.numVerts = 3;
/* get info */
numIndexes = PicoGetSurfaceNumIndexes( surface );
indexes = PicoGetSurfaceIndexes( surface, 0 );
/* walk the triangle list */
for ( j = 0; j < numIndexes; j += 3, indexes += 3 )
{
for ( k = 0; k < 3; k++ )
{
xyz = PicoGetSurfaceXYZ( surface, indexes[ k ] );
st = PicoGetSurfaceST( surface, 0, indexes[ k ] );
VectorCopy( xyz, tw.v[ k ].xyz );
Vector2Copy( st, tw.v[ k ].st );
m4x4_transform_point( transform, tw.v[ k ].xyz );
}
FilterTraceWindingIntoNodes_r( &tw, headNodeNum );
}
}
}
