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thug/Code/Gfx/NGC/p_nxmiscfx.cpp

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thug1src
2016-02-13 21:39:12 +00:00
#include <core/defines.h>
#include <gel/collision/collision.h>
#include <gel/collision/colltridata.h>
#include <gel/collision/movcollman.h>
#include <gel/collision/batchtricoll.h>
#include <engine/SuperSector.h>
#include <gfx/nx.h>
#include <gfx/nxtexman.h>
#include <gfx/debuggfx.h>
#include <gfx/NxViewMan.h>
#include <gfx/NxMiscFX.h>
#include <gfx/Ngc/p_nxgeom.h>
#include <gfx/Ngc/p_nxtexture.h>
#include <gfx/Ngc/nx/render.h>
#include <sys/ngc/p_prim.h>
#include <sys/ngc/p_gx.h>
#include "dolphin/base/ppcwgpipe.h"
#include "dolphin/gx/gxvert.h"
namespace Nx
{
#define DRAW_DEBUG_LINES 0
# if DRAW_DEBUG_LINES
static float debugpos[10240*6];
static GXColor debugcol[10240];
static int nLines = 0;
# endif // DRAW_DEBUG_LINES
#define ADD_LINE(_s,_e,_r,_g,_b) { debugpos[(nLines*6)+0] = _s[X]; \
debugpos[(nLines*6)+1] = _s[Y]; \
debugpos[(nLines*6)+2] = _s[Z]; \
debugpos[(nLines*6)+3] = _e[X]; \
debugpos[(nLines*6)+4] = _e[Y]; \
debugpos[(nLines*6)+5] = _e[Z]; \
debugcol[nLines] = (GXColor){_r,_g,_b,255}; \
nLines++; } \
/******************************************************************/
/* */
/* */
/******************************************************************/
struct sNgcScreenFlashVert
{
float x, y, z;
GXColor col;
float u, v;
};
/******************************************************************/
/* */
/* */
/******************************************************************/
struct sNgcVert
{
Mth::Vector pos;
GXColor col;
s16 u, v;
};
/******************************************************************/
/* */
/* */
/******************************************************************/
#if 0
struct sNgcSplatInstanceDetails : public sSplatInstanceDetails
{
// Platform specific part.
NxNgc::CInstance *mp_instance;
// NxNgc::sMaterialHeader m_mat;
// NxNgc::sMaterialPassHeader m_pass;
NxNgc::sTexture * mp_texture;
sNgcVert m_verts[SPLAT_POLYS_PER_MESH * 3];
};
#endif // 0
/******************************************************************/
/* */
/* */
/******************************************************************/
struct sNgcShatterInstanceDetails : public sShatterInstanceDetails
{
// Platform specific part.
sNgcShatterInstanceDetails( int num_tris, NxNgc::sMesh *p_mesh, NxNgc::sScene *p_scene, GXVtxFmt format );
~sNgcShatterInstanceDetails( void );
NxNgc::sMesh *mp_mesh;
NxNgc::sScene *mp_scene;
sNgcVert *mp_vertex_buffer;
GXVtxFmt m_vertex_format;
};
/*****************************************************************************
** Private Functions **
*****************************************************************************/
/******************************************************************/
/* */
/* */
/******************************************************************/
sNgcShatterInstanceDetails::sNgcShatterInstanceDetails( int num_tris, NxNgc::sMesh *p_mesh, NxNgc::sScene *p_scene, GXVtxFmt format ) : sShatterInstanceDetails( num_tris )
{
mp_mesh = p_mesh;
mp_scene = p_scene;
mp_vertex_buffer = new sNgcVert[num_tris * 3];
m_vertex_format = format;
}
/******************************************************************/
/* */
/* */
/******************************************************************/
sNgcShatterInstanceDetails::~sNgcShatterInstanceDetails( void )
{
delete [] mp_vertex_buffer;
}
/******************************************************************/
/* */
/* */
/******************************************************************/
#if 0
sNgcSplatInstanceDetails * getDetailsForTextureSplat( NxNgc::sTexture *p_texture )
{
sNgcSplatInstanceDetails *p_Ngc_details;
Dbg_Assert( p_splat_details_table );
// Check to see whether we have a scene already created for this type of texture splat.
p_splat_details_table->IterateStart();
sSplatInstanceDetails *p_details = p_splat_details_table->IterateNext();
while( p_details )
{
p_Ngc_details = static_cast<sNgcSplatInstanceDetails*>( p_details );
// if( p_Ngc_details->m_pass.m_texture.p_data == p_texture )
if( p_Ngc_details->mp_texture == p_texture )
{
// This scene contains a material with the required texture, so use this scene.
return p_Ngc_details;
}
p_details = p_splat_details_table->IterateNext();
}
// Create an (opaque) material used to render the mesh.
p_Ngc_details = new sNgcSplatInstanceDetails;
p_Ngc_details->mp_texture = p_texture;
p_Ngc_details->m_highest_active_splat = 0;
memset( p_Ngc_details->m_lifetimes, 0, sizeof( int ) * SPLAT_POLYS_PER_MESH );
for( int v = 0; v < SPLAT_POLYS_PER_MESH * 3; ++v )
{
p_Ngc_details->m_verts[v].pos = Mth::Vector(0.0f, 0.0f, 0.0f, 1.0f);
p_Ngc_details->m_verts[v].col = (GXColor){ 0x80, 0x80, 0x80, 0xff };
}
p_splat_details_table->PutItem((uint32)p_Ngc_details, p_Ngc_details );
return p_Ngc_details;
}
#endif // 0
/******************************************************************/
/* */
/* */
/******************************************************************/
bool subdivide_tri_stack( sNgcVert **p_write, NxNgc::sMesh *p_mesh )
{
// If there are elements on the stack, pop off the top three vertices and subdivide if necessary.
if( triSubdivideStack.IsEmpty())
{
return false;
}
// Three temporary buffers.
sNgcVert v0;
sNgcVert v1;
sNgcVert v2;
sNgcVert *p_v0 = &v0;
sNgcVert *p_v1 = &v1;
sNgcVert *p_v2 = &v2;
// Stack is LIFO, so Pop() off in reverse order.
triSubdivideStack.Pop( p_v2 );
triSubdivideStack.Pop( p_v1 );
triSubdivideStack.Pop( p_v0 );
// Calculate the area of this tri.
Mth::Vector p( p_v1->pos[X] - p_v0->pos[X], p_v1->pos[Y] - p_v0->pos[Y], p_v1->pos[Z] - p_v0->pos[Z] );
Mth::Vector q( p_v2->pos[X] - p_v0->pos[X], p_v2->pos[Y] - p_v0->pos[Y], p_v2->pos[Z] - p_v0->pos[Z] );
Mth::Vector r(( p[Y] * q[Z] ) - ( q[Y] * p[Z] ), ( p[Z] * q[X] ) - ( q[Z] * p[X] ), ( p[X] * q[Y] ) - ( q[X] * p[Y] ));
float area_squared = r.LengthSqr();
if( area_squared > shatterAreaTest )
{
// Three temporary buffers.
sNgcVert i01 = v0;
sNgcVert i12 = v0;
sNgcVert i20 = v0;
// Deal with positions (always present).
i01.pos[X] = p_v0->pos[X] + (( p_v1->pos[X] - p_v0->pos[X] ) * 0.5f );
i01.pos[Y] = p_v0->pos[Y] + (( p_v1->pos[Y] - p_v0->pos[Y] ) * 0.5f );
i01.pos[Z] = p_v0->pos[Z] + (( p_v1->pos[Z] - p_v0->pos[Z] ) * 0.5f );
i12.pos[X] = p_v1->pos[X] + (( p_v2->pos[X] - p_v1->pos[X] ) * 0.5f );
i12.pos[Y] = p_v1->pos[Y] + (( p_v2->pos[Y] - p_v1->pos[Y] ) * 0.5f );
i12.pos[Z] = p_v1->pos[Z] + (( p_v2->pos[Z] - p_v1->pos[Z] ) * 0.5f );
i20.pos[X] = p_v2->pos[X] + (( p_v0->pos[X] - p_v2->pos[X] ) * 0.5f );
i20.pos[Y] = p_v2->pos[Y] + (( p_v0->pos[Y] - p_v2->pos[Y] ) * 0.5f );
i20.pos[Z] = p_v2->pos[Z] + (( p_v0->pos[Z] - p_v2->pos[Z] ) * 0.5f );
// Deal with colors (not always present).
// if ( p_mesh->mp_colBuffer )
{
i01.col.r = v0.col.r + (u8)(( v1.col.r - v0.col.r ) >> 1 );
i12.col.r = v1.col.r + (u8)(( v2.col.r - v1.col.r ) >> 1 );
i20.col.r = v2.col.r + (u8)(( v0.col.r - v2.col.r ) >> 1 );
i01.col.g = v0.col.g + (u8)(( v1.col.g - v0.col.g ) >> 1 );
i12.col.g = v1.col.g + (u8)(( v2.col.g - v1.col.g ) >> 1 );
i20.col.g = v2.col.g + (u8)(( v0.col.g - v2.col.g ) >> 1 );
i01.col.b = v0.col.b + (u8)(( v1.col.b - v0.col.b ) >> 1 );
i12.col.b = v1.col.b + (u8)(( v2.col.b - v1.col.b ) >> 1 );
i20.col.b = v2.col.b + (u8)(( v0.col.b - v2.col.b ) >> 1 );
i01.col.a = v0.col.a + (u8)(( v1.col.a - v0.col.a ) >> 1 );
i12.col.a = v1.col.a + (u8)(( v2.col.a - v1.col.a ) >> 1 );
i20.col.a = v2.col.a + (u8)(( v0.col.a - v2.col.a ) >> 1 );
}
// Deal with uv0 (not always present).
// if ( p_mesh->mp_uvBuffer )
{
i01.u = v0.u + (( v1.u - v0.u ) >> 1 );
i01.v = v0.v + (( v1.v - v0.v ) >> 1 );
i12.u = v1.u + (( v2.u - v1.u ) >> 1 );
i12.v = v1.v + (( v2.v - v1.v ) >> 1 );
i20.u = v2.u + (( v0.u - v2.u ) >> 1 );
i20.v = v2.v + (( v0.v - v2.v ) >> 1 );
}
// Push the four new tris onto the stack.
triSubdivideStack.Push( &v0 );
triSubdivideStack.Push( &i01 );
triSubdivideStack.Push( &i20 );
triSubdivideStack.Push( &i01 );
triSubdivideStack.Push( &v1 );
triSubdivideStack.Push( &i12 );
triSubdivideStack.Push( &i01 );
triSubdivideStack.Push( &i12 );
triSubdivideStack.Push( &i20 );
triSubdivideStack.Push( &i20 );
triSubdivideStack.Push( &i12 );
triSubdivideStack.Push( &v2 );
}
else
{
// Just copy the tri into the next available slot.
**p_write = v0;
(*p_write)++;
**p_write = v1;
(*p_write)++;
**p_write = v2;
(*p_write)++;
}
return true;
}
/******************************************************************/
/* */
/* */
/******************************************************************/
static bool same_side( Mth::Vector &p1, Mth::Vector &p2, Mth::Vector &a, Mth::Vector &b )
{
Mth::Vector cp1 = Mth::CrossProduct( b - a, p1 - a );
Mth::Vector cp2 = Mth::CrossProduct( b - a, p2 - a );
if( Mth::DotProduct( cp1, cp2 ) >= 0.0f )
return true;
else
return false;
}
/******************************************************************/
/* */
/* */
/******************************************************************/
static bool point_in_triangle( Mth::Vector &p, Mth::Vector &a, Mth::Vector &b, Mth::Vector &c )
{
if( same_side( p, a, b, c ) && same_side( p, b, a, c ) && same_side( p, c, a, b ))
return true;
else
return false;
}
/******************************************************************/
/* */
/* */
/******************************************************************/
static inline bool line_segment_intersection( float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4 )
{
float den = (( y4 - y3 ) * ( x2 - x1 )) - (( x4 - x3 ) * ( y2 - y1 ));
if( den == 0.0f )
{
// Parallel lines.
return false;
}
float num_a = (( x4 - x3 ) * ( y1 - y3 )) - (( y4 - y3 ) * ( x1 - x3 ));
float num_b = (( x2 - x1 ) * ( y1 - y3 )) - (( y2 - y1 ) * ( x1 - x3 ));
num_a /= den;
num_b /= den;
if(( num_a <= 1.0f ) && ( num_b <= 1.0f ))
return true;
return false;
}
/******************************************************************/
/* */
/* */
/******************************************************************/
static inline bool tri_texture_intersect( float u0, float v0, float u1, float v1, float u2, float v2 )
{
// Trivial check to see if all three points are outside range of texture.
if(( u0 < -1.0f ) && ( u1 < -1.0f ) && ( u2 < -1.0f ))
return false;
if(( u0 > 1.0f ) && ( u1 > 1.0f ) && ( u2 > 1.0f ))
return false;
if(( v0 < -1.0f ) && ( v1 < -1.0f ) && ( v2 < -1.0f ))
return false;
if(( v0 > 1.0f ) && ( v1 > 1.0f ) && ( v2 > 1.0f ))
return false;
// Check that at least one corner of the texture falls within the tri.
Mth::Vector texture_square[4] = { Mth::Vector( -1.0f, -1.0f, 0.0f, 0.0f ),
Mth::Vector( 1.0f, -1.0f, 0.0f, 0.0f ),
Mth::Vector( 1.0f, 1.0f, 0.0f, 0.0f ),
Mth::Vector( -1.0f, 1.0f, 0.0f, 0.0f )};
Mth::Vector a( u0, v0, 0.0f );
Mth::Vector b( u1, v1, 0.0f );
Mth::Vector c( u2, v2, 0.0f );
for( int p = 0; p < 4; ++p )
{
if( point_in_triangle( texture_square[p], a, b, c ))
{
return true;
}
}
// No corners of the texture fall within the tri. There are 3 possible explanations:
// 1) The tri intersects the texture, but does not contain a texture corner.
// 2) The texture lies entirely outside of the tri.
// 3) The tri falls entirely within the texture.
// Given the relatively small size of the textures, case (3) is extremely unlikely.
// Perform a trivial check to see whether a corner of the tri lies within the texture. This will catch (3) and sometimes (1).
if(( u0 >= -1.0f ) && ( u0 <= 1.0f ) && ( v0 >= -1.0f ) && ( v0 <= 1.0f ))
return true;
if(( u1 >= -1.0f ) && ( u1 <= 1.0f ) && ( v1 >= -1.0f ) && ( v1 <= 1.0f ))
return true;
if(( u2 >= -1.0f ) && ( u2 <= 1.0f ) && ( v2 >= -1.0f ) && ( v2 <= 1.0f ))
return true;
// Perform the complete check to see if any line segment forming the tri intersects any line segment forming the texture.
for( int p = 0; p < 4; ++p )
{
int q = ( p + 1 ) % 4;
if( line_segment_intersection( u0, v0, u1, v1, texture_square[p][X], texture_square[p][Y], texture_square[q][X], texture_square[q][Y] ))
return true;
}
return false;
}
/*****************************************************************************
** Public Functions **
*****************************************************************************/
/******************************************************************/
/* */
/* */
/******************************************************************/
void plat_screen_flash_render( sScreenFlashDetails *p_details )
{
// Create an (opaque) material used to render the mesh.
NxNgc::sMaterialHeader mat;
NxNgc::sMaterialPassHeader pass;
// Header.
mat.m_checksum = 0xa9db601e; // particle
mat.m_passes = 1;
mat.m_alpha_cutoff = 1;
mat.m_flags = (1<<1); // 2 sided.
// mat.m_shininess = 0.0f;
// Pass 0.
pass.m_texture.p_data = NULL;
pass.m_flags = (1<<5) | (1<<6); // clamped.
pass.m_filter = 0;
pass.m_blend_mode = (unsigned char)NxNgc::vBLEND_MODE_BLEND;
pass.m_alpha_fix = (unsigned char)0;
pass.m_k = 0;
pass.m_color.r = 128;
pass.m_color.g = 128;
pass.m_color.b = 128;
pass.m_color.a = 255;
// Get viewport details.
CViewport *p_vp = CViewportManager::sGetActiveViewport( p_details->m_viewport );
sNgcScreenFlashVert verts[4];
verts[0].x = p_vp->GetOriginX() * 640;
verts[0].y = p_vp->GetOriginY() * 448;
verts[0].z = p_details->m_z;
verts[1].x = verts[0].x + ( p_vp->GetWidth() * 640 );
verts[1].y = verts[0].y;
verts[1].z = verts[0].z;
verts[2].x = verts[0].x + ( p_vp->GetWidth() * 640 );
verts[2].y = verts[0].y + ( p_vp->GetHeight() * 448 );
verts[2].z = verts[0].z;
verts[3].x = verts[0].x;
verts[3].y = verts[0].y + ( p_vp->GetHeight() * 448 );
verts[3].z = verts[0].z;
for( int v = 0; v < 4; ++v )
{
verts[v].col = (GXColor){ p_details->m_current.r, p_details->m_current.g, p_details->m_current.b, p_details->m_current.a };
}
if( p_details->mp_texture )
{
verts[0].u = 0.0f;
verts[0].v = 0.0f;
verts[1].u = 1.0f;
verts[1].v = 0.0f;
verts[2].u = 1.0f;
verts[2].v = 1.0f;
verts[3].u = 0.0f;
verts[3].v = 1.0f;
Nx::CNgcTexture *p_Ngc_texture = static_cast<CNgcTexture*>( p_details->mp_texture );
pass.m_texture.p_data = p_Ngc_texture->GetEngineTexture();
pass.m_flags |= (1<<0);
}
GX::SetZMode ( GX_FALSE, GX_ALWAYS, GX_FALSE );
NxNgc::multi_mesh( &mat, &pass, true, false );
GX::SetTexCoordGen( GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_FALSE, GX_PTIDENTITY );
GX::SetCurrMtxPosTex03( GX_PNMTX0, GX_IDENTITY, GX_IDENTITY, GX_IDENTITY, GX_IDENTITY );
// Render the triangles
if( p_details->mp_texture )
{
GX::SetVtxDesc( 3, GX_VA_POS, GX_DIRECT, GX_VA_CLR0, GX_DIRECT, GX_VA_TEX0, GX_DIRECT );
}
else
{
GX::SetVtxDesc( 2, GX_VA_POS, GX_DIRECT, GX_VA_CLR0, GX_DIRECT );
}
GX::Begin( GX_QUADS, GX_VTXFMT0, 4 );
for (int i = 0; i < 4; i++ )
{
GX::Position3f32( verts[i].x, verts[i].y, verts[i].z );
GX::Color1u32(*((u32*)&(verts[i].col)));
if( p_details->mp_texture ) GX::TexCoord2f32( verts[i].u, verts[i].v );
}
GX::End();
}
/******************************************************************/
/* */
/* */
/******************************************************************/
void plat_texture_splat_initialize( void )
{
}
/******************************************************************/
/* */
/* */
/******************************************************************/
void plat_texture_splat_cleanup( void )
{
#if 0
sNgcSplatInstanceDetails *p_Ngc_details;
Dbg_Assert( p_splat_details_table );
p_splat_details_table->IterateStart();
sSplatInstanceDetails *p_details = p_splat_details_table->IterateNext();
while( p_details )
{
p_Ngc_details = static_cast<sNgcSplatInstanceDetails*>( p_details );
//delete p_Ngc_details->mp_material;
p_details = p_splat_details_table->IterateNext();
p_splat_details_table->FlushItem((uint32)p_Ngc_details );
delete p_Ngc_details;
}
#endif // 0
}
/******************************************************************/
/* */
/* */
/******************************************************************/
void plat_texture_splat_reset_poly( sSplatInstanceDetails *p_details, int index )
{
#if 0
// Cast the details to Ngc details.
sNgcSplatInstanceDetails *p_Ngc_details = static_cast<sNgcSplatInstanceDetails *>( p_details );
// Force this poly to be degenerate.
p_Ngc_details->m_verts[index * 3 + 1] = p_Ngc_details->m_verts[index * 3];
p_Ngc_details->m_verts[index * 3 + 2] = p_Ngc_details->m_verts[index * 3];
#endif // 0
}
/******************************************************************/
/* */
/* */
/******************************************************************/
bool plat_texture_splat( Nx::CSector **pp_sectors, Nx::CCollStatic **pp_collision, Mth::Vector& start, Mth::Vector& end, float size, float lifetime, Nx::CTexture *p_texture, Nx::sSplatTrailInstanceDetails *p_trail_details )
{
#if 0
Mth::Matrix view_matrix, ortho_matrix, projection_matrix;
# if DRAW_DEBUG_LINES
// Gfx::AddDebugLine( start, end, MAKE_RGB( 200, 200, 0 ), MAKE_RGB( 200, 200, 0 ), 1 );
ADD_LINE( start, end, 200, 200, 0 );
# endif // DRAW_DEBUG_LINES
// The length of the start->end line defines the view depth of the frustum.
Mth::Vector splat_vector = end - start;
float view_depth = splat_vector.Length();
splat_vector.Normalize();
// Calculate the parallel projection matrix. Generally the projection vector will tend to point downwards, so we use a
// random vector in the x-z plane to define the up vector for the projection. However if this splat is part of a trail,
// use the previous point to generate the up vector.
if( p_trail_details )
{
Mth::Vector up( start[X] - p_trail_details->m_last_pos[X], start[Y] - p_trail_details->m_last_pos[Y], start[Z] - p_trail_details->m_last_pos[Z], 0.0f );
// The height of the viewport is defined by the distance between the two points.
float height = up.Length() * 0.5f;
start -= up * 0.5f;
end -= up * 0.5f;
up.Normalize();
Mth::CreateMatrixLookAt( view_matrix, start, end, up );
Mth::CreateMatrixOrtho( ortho_matrix, size, height, 0.1f, view_depth );
}
else if( fabsf( splat_vector[Y] ) > 0.5f )
{
float angle = ((float)rand() * 2.0f * Mth::PI ) / (float)RAND_MAX;
Mth::CreateMatrixLookAt( view_matrix, start, end, Mth::Vector( sinf( angle ), 0.0f, cosf( angle ), 0.0f ));
Mth::CreateMatrixOrtho( ortho_matrix , size, size, 0.1f, view_depth );
}
else
{
Mth::CreateMatrixLookAt( view_matrix, start, end, Mth::Vector( 0.0f, 1.0f, 0.0f, 0.0f ));
Mth::CreateMatrixOrtho( ortho_matrix , size, size, 0.1f, view_depth );
}
projection_matrix = view_matrix * ortho_matrix;
// Pointer to the mesh we will be modifying. (Don't want to set the pointer up until we know for
// sure that we will be adding some polys).
sNgcSplatInstanceDetails *p_details = NULL;
sNgcVert *p_target_verts = NULL;
Nx::CSector *p_sector;
while( (p_sector = *pp_sectors) )
{
Nx::CNgcGeom *p_Ngc_geom = static_cast<Nx::CNgcGeom*>( p_sector->GetGeom());
if( p_Ngc_geom )
{
# if DRAW_DEBUG_LINES
Mth::Vector min = p_Ngc_geom->GetBoundingBox().GetMin();
Mth::Vector max = p_Ngc_geom->GetBoundingBox().GetMax();
Mth::Vector box[8];
box[0] = box[1] = box[2] = box[3] = max;
box[1][X] = min[X];
box[2][Y] = min[Y];
box[3][Z] = min[Z];
box[5] = box[6] = box[7] = box[4] = min;;
box[5][X] = max[X];
box[6][Y] = max[Y];
box[7][Z] = max[Z];
for ( int i = 1; i < 4; i++ )
{
// Gfx::AddDebugLine( box[0], box[i], MAKE_RGB( 200, 0, 0 ), MAKE_RGB( 200, 0, 0 ), 1 );
ADD_LINE( box[0], box[i], 200, 0, 0 );
}
for ( int i = 5; i < 8; i++ )
{
// Gfx::AddDebugLine( box[4], box[i], MAKE_RGB( 200, 0, 0 ), MAKE_RGB( 200, 0, 0 ), 1 );
ADD_LINE( box[4], box[i], 200, 0, 0 );
}
// Gfx::AddDebugLine( box[1], box[6], MAKE_RGB( 200, 0, 0 ), MAKE_RGB( 200, 0, 0 ), 1 );
// Gfx::AddDebugLine( box[1], box[7], MAKE_RGB( 200, 0, 0 ), MAKE_RGB( 200, 0, 0 ), 1 );
// Gfx::AddDebugLine( box[2], box[5], MAKE_RGB( 200, 0, 0 ), MAKE_RGB( 200, 0, 0 ), 1 );
// Gfx::AddDebugLine( box[2], box[7], MAKE_RGB( 200, 0, 0 ), MAKE_RGB( 200, 0, 0 ), 1 );
// Gfx::AddDebugLine( box[3], box[5], MAKE_RGB( 200, 0, 0 ), MAKE_RGB( 200, 0, 0 ), 1 );
// Gfx::AddDebugLine( box[3], box[6], MAKE_RGB( 200, 0, 0 ), MAKE_RGB( 200, 0, 0 ), 1 );
ADD_LINE( box[1], box[6], 200, 0, 0 );
ADD_LINE( box[1], box[7], 200, 0, 0 );
ADD_LINE( box[2], box[5], 200, 0, 0 );
ADD_LINE( box[2], box[7], 200, 0, 0 );
ADD_LINE( box[3], box[5], 200, 0, 0 );
ADD_LINE( box[3], box[6], 200, 0, 0 );
# endif // DRAW_DEBUG_LINES
// For each mesh in the geom...
for( uint32 m = 0; m < p_Ngc_geom->m_num_mesh; ++m )
{
NxNgc::sMesh *p_mesh = p_Ngc_geom->m_mesh_array[m];
NxNgc::sScene *p_scene = p_Ngc_geom->mp_scene->GetEngineScene();
// Not allowed on meshes which are flagged not to shadow.
if( p_mesh->m_flags & NxNgc::sMesh::MESH_FLAG_NO_SKATER_SHADOW )
continue;
// Count indices.
int num_indices = 0;
unsigned char * p_start = (unsigned char *)&p_mesh->mp_dl[1];
// uint32 cp = (p_start[2]<<24)|(p_start[3]<<16)|(p_start[4]<<8)|p_start[5];
unsigned char * p_end = &p_start[p_mesh->mp_dl->m_size];
p_start = &p_start[p_mesh->mp_dl->m_index_offset]; // Skip to actual 1st GDBegin.
unsigned char * p8 = p_start;
int stride = p_mesh->mp_dl->m_index_stride;
unsigned char * p_index_buffer = &p8[1];
while ( p8 < p_end )
{
if ( ( p8[0] & 0xf8 ) == GX_TRIANGLESTRIP )
{
// Found a triangle strip - parse it.
int num_verts = ( p8[1] << 8 ) | p8[2];
p8 += 3; // Skip GDBegin
num_indices += num_verts;
p8 += stride * 2 * num_verts;
}
else
{
break;
}
}
if ( p_index_buffer )
{
// Create the index buffer.
uint polys = 0;
uint16 idxbuf[2048*3]; // 12k.
uint16 * p_dest = idxbuf;
uint8 * p_source = (uint8*)p_index_buffer;
uint16 total = 0;
while ( total < num_indices )
{
uint16 num = ( p_source[0] << 8 ) | p_source[1];
p_source += 2;
uint16 i0;
uint16 i1 = ( p_source[0] << 8 ) | p_source[1];
p_source += stride * 2;
uint16 i2 = ( p_source[0] << 8 ) | p_source[1];
p_source += stride * 2;
for ( int vv = 2; vv < num; vv++ )
{
i0 = i1;
i1 = i2;
i2 = ( p_source[0] << 8 ) | p_source[1];
p_source += stride * 2;
*p_dest++ = i0;
*p_dest++ = i1;
*p_dest++ = i2;
polys++;
}
p_source += 1;
total += num + 1; // Count each index + the count.
}
// Now scan through each non-degenerate tri, checking the verts to see if they are within scope.
for( uint32 i = 0; i < polys; ++i )
{
// Wrap the indices round.
uint16 index0 = idxbuf[(i*3)+0];
uint16 index1 = idxbuf[(i*3)+1];
uint16 index2 = idxbuf[(i*3)+2];
if(( index0 != index1 ) && ( index0 != index2 ) && ( index1 != index2 ))
{
Mth::Vector v0( p_scene->mp_pos_pool[(index0*3)+0],
p_scene->mp_pos_pool[(index0*3)+1],
p_scene->mp_pos_pool[(index0*3)+2] );
Mth::Vector v1( p_scene->mp_pos_pool[(index1*3)+0],
p_scene->mp_pos_pool[(index1*3)+1],
p_scene->mp_pos_pool[(index1*3)+2] );
Mth::Vector v2( p_scene->mp_pos_pool[(index2*3)+0],
p_scene->mp_pos_pool[(index2*3)+1],
p_scene->mp_pos_pool[(index2*3)+2] );
v0[W] = v1[W] = v2[W] = 1.0f; // Make sure they are points, not vectors
// OSReport( "Looking at: (%6.3f, %6.3f, %6.3f) (%6.3f, %6.3f, %6.3f) (%6.3f, %6.3f, %6.3f)\n", v0[X], v0[Y], v0[Z], v1[X], v1[Y], v1[Z], v2[X], v2[Y], v2[Z] );
Mth::Vector uvprojections[3];
uvprojections[0] = v0 * projection_matrix;
uvprojections[1] = v1 * projection_matrix;
uvprojections[2] = v2 * projection_matrix;
// Check that they are in the frustum
// if(( uvprojections[0][X] < -1.0f ) && ( uvprojections[1][X] < -1.0f ) && ( uvprojections[2][X] < -1.0f ))
// continue;
// if(( uvprojections[0][Y] < -1.0f ) && ( uvprojections[1][Y] < -1.0f ) && ( uvprojections[2][Y] < -1.0f ))
// continue;
// if(( uvprojections[0][X] > 1.0f ) && ( uvprojections[1][X] > 1.0f ) && ( uvprojections[2][X] > 1.0f ))
// continue;
// if(( uvprojections[0][Y] > 1.0f ) && ( uvprojections[1][Y] > 1.0f ) && ( uvprojections[2][Y] > 1.0f ))
// continue;
if(( uvprojections[0][Z] < -1.0f ) && ( uvprojections[1][Z] < -1.0f ) && ( uvprojections[2][Z] < -1.0f ))
continue;
if(( uvprojections[0][Z] > 1.0f ) && ( uvprojections[1][Z] > 1.0f ) && ( uvprojections[2][Z] > 1.0f ))
continue;
// Okay, this tri lies within the projection frustum. Now check that it intersects the texture
if( !tri_texture_intersect( uvprojections[0][X], uvprojections[0][Y],
uvprojections[1][X], uvprojections[1][Y],
uvprojections[2][X], uvprojections[2][Y] ))
{
continue;
}
//#ifdef SHORT_VERT
Mth::Vector s = v1 - v0;
Mth::Vector t = v2 - v0;
Mth::Vector normal = Mth::CrossProduct( s, t );
normal.Normalize();
v0 -= normal;
v1 -= normal;
v2 -= normal;
//#endif // SHORT_VERT
// OSReport( "Added: (%5.1f, %5.1f, %5.1f) (%5.1f, %5.1f, %5.1f) (%5.1f, %5.1f, %5.1f)\n", v0[X], v0[Y], v0[Z], v1[X], v1[Y], v1[Z], v2[X], v2[Y], v2[Z] );
// Okay, this tri lies within the projection frustum. Get a pointer to the mesh used for rendering texture splats
// with the given texture. (Note this will create a new instance to handle texture splats of this texture if one
// does not already exist).
if( p_target_verts == NULL )
{
CNgcTexture *p_Ngc_texture = static_cast<CNgcTexture*>( p_texture );
p_details = getDetailsForTextureSplat( p_Ngc_texture->GetEngineTexture());
p_target_verts = p_details->m_verts;
Dbg_Assert( p_target_verts );
}
// If we have trails, scale up the mapping by one pixel in all directions.
// (effectively 2 pixels in u and 2 pixels in v ).
float up_one_u_pixel;
float up_one_v_pixel;
if( p_trail_details )
{
up_one_u_pixel = 1.0f - ( 1.0f / ( p_texture->GetWidth() / 2.0f ) );
up_one_v_pixel = 1.0f - ( 1.0f / ( p_texture->GetHeight() / 2.0f ) );
}
else
{
up_one_u_pixel = 1.0f;
up_one_v_pixel = 1.0f;
}
// Scan through the lifetimes, finding a 'dead' poly (lifetime == 0), or the oldest.
uint32 idx = p_details->GetOldestSplat();
// Convert lifetime from seconds to milliseconds.
p_details->m_lifetimes[idx] = (int)( lifetime * 1000.0f );
// Set up the corresponding vertices. First write the positions.
uint32 index = idx * 3;
p_target_verts[index + 0].pos = v0;
p_target_verts[index + 1].pos = v1;
p_target_verts[index + 2].pos = v2;
// Then the uv's.
p_target_verts[index + 0].u = (s16)( ( ( ( uvprojections[0][X] * 0.5f ) + 0.5f ) * up_one_u_pixel ) * 256.0f );
p_target_verts[index + 0].v = (s16)( ( ( ( uvprojections[0][Y] * 0.5f ) + 0.5f ) * up_one_v_pixel ) * 256.0f );
p_target_verts[index + 1].u = (s16)( ( ( ( uvprojections[1][X] * 0.5f ) + 0.5f ) * up_one_u_pixel ) * 256.0f );
p_target_verts[index + 1].v = (s16)( ( ( ( uvprojections[1][Y] * 0.5f ) + 0.5f ) * up_one_v_pixel ) * 256.0f );
p_target_verts[index + 2].u = (s16)( ( ( ( uvprojections[2][X] * 0.5f ) + 0.5f ) * up_one_u_pixel ) * 256.0f );
p_target_verts[index + 2].v = (s16)( ( ( ( uvprojections[2][Y] * 0.5f ) + 0.5f ) * up_one_v_pixel ) * 256.0f );
// Now the colors
p_target_verts[index + 0].col = (GXColor){128,128,128,255}; // p_coll_geom->GetVertexRGBA(p_coll_geom->GetFaceVertIndex(*p_face_indexes, 0));
p_target_verts[index + 1].col = (GXColor){128,128,128,255}; // p_coll_geom->GetVertexRGBA(p_coll_geom->GetFaceVertIndex(*p_face_indexes, 1));
p_target_verts[index + 2].col = (GXColor){128,128,128,255}; // p_coll_geom->GetVertexRGBA(p_coll_geom->GetFaceVertIndex(*p_face_indexes, 2));
//.col
Mth::Vector *p_v0 = &( p_target_verts[index + 0].pos );
Mth::Vector *p_v1 = &( p_target_verts[index + 1].pos );
Mth::Vector *p_v2 = &( p_target_verts[index + 2].pos );
Mth::Vector pv( p_v1->GetX() - p_v0->GetX(), p_v1->GetY() - p_v0->GetY(), p_v1->GetZ() - p_v0->GetZ() );
Mth::Vector qv( p_v2->GetX() - p_v0->GetX(), p_v2->GetY() - p_v0->GetY(), p_v2->GetZ() - p_v0->GetZ() );
Mth::Vector r(( pv[Y] * qv[Z] ) - ( qv[Y] * pv[Z] ), ( pv[Z] * qv[X] ) - ( qv[Z] * pv[X] ), ( pv[X] * qv[Y] ) - ( qv[X] * pv[Y] ));
float area_squared = r.LengthSqr();
// Set the shatter test to ensure that we don't subdivide too far. Note that each successive subdivision will quarter
// the area of each triangle, which means the area *squared* of each triangle will become 1/16th of the previous value.
shatterAreaTest = area_squared / 128.0f;
triSubdivideStack.Reset();
triSubdivideStack.SetBlockSize( sizeof(sNgcVert) );
triSubdivideStack.Push( &p_target_verts[index + 0] );
triSubdivideStack.Push( &p_target_verts[index + 1] );
triSubdivideStack.Push( &p_target_verts[index + 2] );
// Allocate a block of memory into which the subdivision stack will write the results.
Mem::Manager::sHandle().PushContext(Mem::Manager::sHandle().TopDownHeap());
sNgcVert *p_array = new sNgcVert[1024];
sNgcVert *p_array_start = p_array;
sNgcVert *p_array_loop = p_array;
//memset( p_array, 0, sizeof(sNgcVert) * 1024 );
Mem::Manager::sHandle().PopContext();
while( subdivide_tri_stack( &p_array, NULL ));
// Ensure we haven't overrun the buffer.
Dbg_Assert((uint32)p_array - (uint32)p_array_loop < ( sizeof(sNgcVert) * 1024 ));
float oo_up_one_u_pixel = 1.0f / up_one_u_pixel;
float oo_up_one_v_pixel = 1.0f / up_one_v_pixel;
// int vert_idx = 0;
bool no_polys = true;
while( p_array_loop != p_array )
{
Dbg_Assert(((uint32) p_array_loop) < ((uint32) p_array));
// Dbg_Message("Looking at vert %d", vert_idx);
// Add this triangle, *if* it is valid.
if( tri_texture_intersect(((p_array_loop[0].u * oo_up_one_u_pixel) - 0.5f) * 2.0f,
((p_array_loop[0].v * oo_up_one_v_pixel) - 0.5f) * 2.0f,
((p_array_loop[1].u * oo_up_one_u_pixel) - 0.5f) * 2.0f,
((p_array_loop[1].v * oo_up_one_v_pixel) - 0.5f) * 2.0f,
((p_array_loop[2].u * oo_up_one_u_pixel) - 0.5f) * 2.0f,
((p_array_loop[2].v * oo_up_one_v_pixel) - 0.5f) * 2.0f ))
// if( tri_texture_intersect((p_array_loop[0].u * 2.0f * oo_up_one_u_pixel) - 1.0f,
// (p_array_loop[0].v * 2.0f * oo_up_one_v_pixel) - 1.0f,
// (p_array_loop[1].u * 2.0f * oo_up_one_u_pixel) - 1.0f,
// (p_array_loop[1].v * 2.0f * oo_up_one_v_pixel) - 1.0f,
// (p_array_loop[2].u * 2.0f * oo_up_one_u_pixel) - 1.0f,
// (p_array_loop[2].v * 2.0f * oo_up_one_v_pixel) - 1.0f ))
{
// Dbg_Message("Accepted vert %d", vert_idx);
// Convert lifetime from seconds to milliseconds.
p_details->m_lifetimes[idx] = (int)( lifetime * 1000.0f );
p_target_verts[index + 0].pos = p_array_loop[0].pos;
p_target_verts[index + 1].pos = p_array_loop[1].pos;
p_target_verts[index + 2].pos = p_array_loop[2].pos;
p_target_verts[index + 0].u = p_array_loop[0].u;
p_target_verts[index + 0].v = p_array_loop[0].v;
p_target_verts[index + 1].u = p_array_loop[1].u;
p_target_verts[index + 1].v = p_array_loop[1].v;
p_target_verts[index + 2].u = p_array_loop[2].u;
p_target_verts[index + 2].v = p_array_loop[2].v;
p_target_verts[index + 0].col = p_array_loop[0].col;
p_target_verts[index + 1].col = p_array_loop[1].col;
p_target_verts[index + 2].col = p_array_loop[2].col;
idx = p_details->GetOldestSplat();
index = idx * 3;
Dbg_Assert((index + 2) < (SPLAT_POLYS_PER_MESH * 3));
no_polys = false;
}
p_array_loop += 3;
// vert_idx++;
}
delete [] p_array_start;
// Check if all the new polys were rejected. Don't know why this happens, but we want
// to get rid of the original texture.
if (no_polys)
{
plat_texture_splat_reset_poly( p_details, idx );
}
// OSReport( "Add U0: %6.1f %6.1f\n", p_target_verts[index + 0].u, p_target_verts[index + 0].v );
// OSReport( "Add U1: %6.1f %6.1f\n", p_target_verts[index + 1].u, p_target_verts[index + 1].v );
// OSReport( "Add U2: %6.1f %6.1f\n", p_target_verts[index + 2].u, p_target_verts[index + 2].v );
# if DRAW_DEBUG_LINES
// D3DXVECTOR3* p_d3dvert;
// p_d3dvert = (D3DXVECTOR3*)( p_vert_data + ( p_mesh->m_vertex_stride * index0 ));
// Mth::Vector v0( p_d3dvert->x, p_d3dvert->y, p_d3dvert->z );
// p_d3dvert = (D3DXVECTOR3*)( p_vert_data + ( p_mesh->m_vertex_stride * index1 ));
// Mth::Vector v1( p_d3dvert->x, p_d3dvert->y, p_d3dvert->z );
// p_d3dvert = (D3DXVECTOR3*)( p_vert_data + ( p_mesh->m_vertex_stride * index2 ));
// Mth::Vector v2( p_d3dvert->x, p_d3dvert->y, p_d3dvert->z );
// Gfx::AddDebugLine( v0, v1, MAKE_RGB( 0, 200, 200 ), MAKE_RGB( 0, 200, 200 ), 1 );
// Gfx::AddDebugLine( v1, v2, MAKE_RGB( 0, 200, 200 ), MAKE_RGB( 0, 200, 200 ), 1 );
// Gfx::AddDebugLine( v2, v0, MAKE_RGB( 0, 200, 200 ), MAKE_RGB( 0, 200, 200 ), 1 );
// v0[Y] += 10;
// v1[Y] += 10;
// v2[Y] += 10;
ADD_LINE( v0, v1, 0, 200, 200 );
ADD_LINE( v1, v2, 0, 200, 200 );
ADD_LINE( v2, v0, 0, 200, 200 );
# endif // DRAW_DEBUG_LINES
}
}
}
}
}
++pp_sectors;
}
#endif // 0
return false;
}
/******************************************************************/
/* */
/* */
/******************************************************************/
void plat_texture_splat_render( void )
{
#if 0
//# if DRAW_DEBUG_LINES
//# endif //DRAW_DEBUG_LINES
//
sNgcSplatInstanceDetails *p_Ngc_details;
Dbg_Assert( p_splat_details_table );
p_splat_details_table->IterateStart();
sSplatInstanceDetails *p_details = p_splat_details_table->IterateNext();
while( p_details )
{
p_Ngc_details = static_cast<sNgcSplatInstanceDetails*>( p_details );
if( p_Ngc_details->m_highest_active_splat >= 0 )
{
// NxNgc::multi_mesh( &p_Ngc_details->m_mat, &p_Ngc_details->m_pass, true, true );
GX::SetChanCtrl( GX_COLOR0A0, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, GX_LIGHT_NULL, GX_DF_NONE, GX_AF_NONE );
// NxNgc::sMaterialHeader mat;
// NxNgc::sMaterialPassHeader pass;
//
// mat.m_checksum = 0;
// mat.m_passes = 1;
// mat.m_alpha_cutoff = 0;
// mat.m_flags = 0;
// mat.m_material_dl_id = 0;
// mat.m_draw_order = 0;
// mat.m_pass_item = 0;
// mat.m_texture_dl_id = 0;
//
// pass.m_texture.p_data = p_Ngc_details->mp_texture;
// pass.m_flags = (1<<0)|(1<<5)|(1<<6);
// pass.m_filter = 0;
// pass.m_blend_mode = (unsigned char)NxNgc::vBLEND_MODE_BLEND;
// pass.m_alpha_fix = 128;
// pass.m_uv_wibble_index = 0;
// pass.m_color = (GXColor){128,128,128,255};
// pass.m_k = 0;
// pass.m_u_tile = 0;
// pass.m_v_tile = 0;
//
// multi_mesh( &mat, &pass, true, true );
// GX::SetPointSize( 6, GX_TO_ONE );
//
// GX::SetTexChanTevIndCull( 0, 1, 1, 0, GX_CULL_NONE );
// GX::SetTexCoordGen( GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_FALSE, GX_PTIDENTITY );
// GX::SetCurrMtxPosTex03( GX_PNMTX0, GX_IDENTITY, GX_IDENTITY, GX_IDENTITY, GX_IDENTITY );
// GX::SetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP_NULL, GX_COLOR0A0, GX_TEXCOORD0, GX_TEXMAP_NULL, GX_COLOR_NULL);
//
// GX::SetTevAlphaInOpSwap( GX_TEVSTAGE0, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_RASA,
// GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_2, GX_ENABLE, GX_TEVPREV,
// GX_TEV_SWAP0, GX_TEV_SWAP0 );
//
// GX::SetTevColorInOp( GX_TEVSTAGE0, GX_CC_RASC, GX_CC_ZERO, GX_CC_ZERO, GX_CC_ZERO,
// GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_ENABLE, GX_TEVPREV );
// GX::SetBlendMode ( GX_BM_NONE, GX_BL_ONE, GX_BL_ONE, GX_LO_CLEAR, GX_TRUE, GX_FALSE, GX_TRUE );
// GX::SetChanCtrl( GX_COLOR0A0, GX_DISABLE, GX_SRC_REG, GX_SRC_REG, GX_LIGHT_NULL, GX_DF_NONE, GX_AF_NONE );
// GX::SetChanAmbColor( GX_COLOR0A0, (GXColor){255,255,255,255} );
// GX::SetChanMatColor( GX_COLOR0A0, (GXColor){255,0,255,255} );
//
// GX::SetVtxDesc( 1, GX_VA_POS, GX_DIRECT );
//
// sNgcVert *p_vert_array = p_Ngc_details->m_verts;
// for (int i = 0; i < ( p_details->m_highest_active_splat + 1 ); i++, p_vert_array += 3)
// {
//// printf( "Splat Tri:\n%8.3f %8.3f %8.3f\n", p_vert_array[0].pos[X], p_vert_array[0].pos[Y], p_vert_array[0].pos[Z] );
//// printf( "%8.3f %8.3f %8.3f\n", p_vert_array[1].pos[X], p_vert_array[1].pos[Y], p_vert_array[1].pos[Z] );
//// printf( "%8.3f %8.3f %8.3f\n", p_vert_array[2].pos[X], p_vert_array[2].pos[Y], p_vert_array[2].pos[Z] );
// GX::Begin( GX_LINES, GX_VTXFMT0, 2 );
// GX::Position3f32( p_vert_array[0].pos[X], p_vert_array[0].pos[Y], p_vert_array[0].pos[Z] );
// GX::Position3f32( p_vert_array[1].pos[X], p_vert_array[1].pos[Y], p_vert_array[1].pos[Z] );
// GX::End();
// GX::Begin( GX_LINES, GX_VTXFMT0, 2 );
// GX::Position3f32( p_vert_array[1].pos[X], p_vert_array[1].pos[Y], p_vert_array[1].pos[Z] );
// GX::Position3f32( p_vert_array[2].pos[X], p_vert_array[2].pos[Y], p_vert_array[2].pos[Z] );
// GX::End();
// GX::Begin( GX_LINES, GX_VTXFMT0, 2 );
// GX::Position3f32( p_vert_array[2].pos[X], p_vert_array[2].pos[Y], p_vert_array[2].pos[Z] );
// GX::Position3f32( p_vert_array[0].pos[X], p_vert_array[0].pos[Y], p_vert_array[0].pos[Z] );
// GX::End();
// }
//// GX::End();
//
//
GX::SetCurrMtxPosTex03( GX_PNMTX0, GX_IDENTITY, GX_IDENTITY, GX_IDENTITY, GX_IDENTITY );
GX::UploadTexture( p_Ngc_details->mp_texture->pTexelData,
p_Ngc_details->mp_texture->ActualWidth,
p_Ngc_details->mp_texture->ActualHeight,
GX_TF_CMPR,
GX_CLAMP,
GX_CLAMP,
GX_FALSE,
GX_LINEAR,
GX_LINEAR,
0.0f,
0.0f,
0.0f,
GX_FALSE,
GX_TRUE,
GX_ANISO_1,
GX_TEXMAP0 );
GX::SetTexCoordScale( GX_TEXCOORD0, GX_TRUE, p_Ngc_details->mp_texture->ActualWidth, p_Ngc_details->mp_texture->ActualHeight );
GX::SetTexChanTevIndCull( 1, 0, 1, 0, GX_CULL_NONE );
GX::SetTexCoordGen( GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_FALSE, GX_PTIDENTITY );
GX::SetCurrMtxPosTex03( GX_PNMTX0, GX_IDENTITY, GX_IDENTITY, GX_IDENTITY, GX_IDENTITY );
GX::SetAlphaCompare(GX_ALWAYS, 0, GX_AOP_AND, GX_ALWAYS, 0 );
GX::SetBlendMode ( GX_BM_NONE, GX_BL_ONE, GX_BL_ONE, GX_LO_CLEAR, GX_TRUE, GX_FALSE, GX_TRUE ); // Replace
// GX::SetBlendMode( GX_BM_BLEND, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_CLEAR, GX_TRUE, GX_FALSE, GX_TRUE );
GX::SetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL, GX_TEXCOORD0, GX_TEXMAP_NULL, GX_COLOR_NULL);
GX::SetTevAlphaInOpSwap( GX_TEVSTAGE0, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO,
GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_DISABLE, GX_TEVPREV,
GX_TEV_SWAP0, GX_TEV_SWAP0 );
GX::SetTevColorInOp( GX_TEVSTAGE0, GX_CC_TEXC, GX_CC_ZERO, GX_CC_ZERO, GX_CC_ZERO,
GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_DISABLE, GX_TEVPREV );
f32 pm[GX_PROJECTION_SZ];
GX::GetProjectionv( pm );
float value = pm[6] + ( 150.0f * 5 ) * pm[5];
GXWGFifo.u8 = GX_LOAD_XF_REG;
GXWGFifo.u16 = 0;
GXWGFifo.u16 = 0x1025;
GXWGFifo.f32 = value;
// GX::SetTexCoordGen( GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_FALSE, GX_PTIDENTITY );
// GX::SetCurrMtxPosTex03( GX_PNMTX0, GX_IDENTITY, GX_IDENTITY, GX_IDENTITY, GX_IDENTITY );
// Render the triangles
GX::SetVtxDesc( 3, GX_VA_POS, GX_DIRECT, GX_VA_CLR0, GX_DIRECT, GX_VA_TEX0, GX_DIRECT );
// GX::SetVtxDesc( 1, GX_VA_POS, GX_DIRECT );
GX::Begin( GX_TRIANGLES, GX_VTXFMT6, ( p_details->m_highest_active_splat + 1 ) * 3 );
sNgcVert *p_vert_array = p_Ngc_details->m_verts;
for (int i = 0; i < ( p_details->m_highest_active_splat + 1 ); i++, p_vert_array += 3)
{
GX::Position3f32( p_vert_array[0].pos[X], p_vert_array[0].pos[Y], p_vert_array[0].pos[Z] );
GX::Color1u32(*((u32*)&(p_vert_array[0].col)));
GX::TexCoord2s16( p_vert_array[0].u, p_vert_array[0].v );
GX::Position3f32( p_vert_array[1].pos[X], p_vert_array[1].pos[Y], p_vert_array[1].pos[Z] );
GX::Color1u32(*((u32*)&(p_vert_array[1].col)));
GX::TexCoord2s16( p_vert_array[1].u, p_vert_array[1].v );
GX::Position3f32( p_vert_array[2].pos[X], p_vert_array[2].pos[Y], p_vert_array[2].pos[Z] );
GX::Color1u32(*((u32*)&(p_vert_array[2].col)));
GX::TexCoord2s16( p_vert_array[2].u, p_vert_array[2].v );
// GX::Position3f32( 0.0f, 0.0f, 0.0f );
// GX::Position3f32( 0.0f, 0.0f, 0.0f );
// GX::Position3f32( 0.0f, 0.0f, 0.0f );
// GX::Position3f32( 0.0f, 0.0f, 0.0f );
// GX::Position3f32( 0.0f, 0.0f, 0.0f );
// GX::Position3f32( 0.0f, 0.0f, 0.0f );
}
GX::End();
}
p_details = p_splat_details_table->IterateNext();
}
#endif // 0
}
/******************************************************************/
/* */
/* */
/******************************************************************/
void plat_shatter_initialize( void )
{
}
/******************************************************************/
/* */
/* */
/******************************************************************/
void plat_shatter_cleanup( void )
{
sNgcShatterInstanceDetails *p_Ngc_details;
Dbg_Assert( p_shatter_details_table );
p_shatter_details_table->IterateStart();
sShatterInstanceDetails *p_details = p_shatter_details_table->IterateNext();
while( p_details )
{
p_Ngc_details = static_cast<sNgcShatterInstanceDetails*>( p_details );
p_details = p_shatter_details_table->IterateNext();
p_shatter_details_table->FlushItem((uint32)p_Ngc_details );
delete p_Ngc_details;
}
}
/******************************************************************/
/* */
/* */
/******************************************************************/
void plat_shatter( CGeom *p_geom )
{
#if 1
CNgcGeom *p_Ngc_geom = static_cast<CNgcGeom*>( p_geom );
// For each mesh in the geom...
for( uint32 m = 0; m < p_Ngc_geom->m_num_mesh; ++m )
{
NxNgc::sMesh *p_mesh = p_Ngc_geom->m_mesh_array[m];
NxNgc::sScene *p_scene = p_Ngc_geom->mp_scene->GetEngineScene();
// Count indices.
int num_indices = 0;
unsigned char * p_start = (unsigned char *)&p_mesh->mp_dl[1];
uint32 cp = (p_start[2]<<24)|(p_start[3]<<16)|(p_start[4]<<8)|p_start[5];
unsigned char * p_end = &p_start[p_mesh->mp_dl->m_size];
p_start = &p_start[p_mesh->mp_dl->m_index_offset]; // Skip to actual 1st GDBegin.
unsigned char * p8 = p_start;
int stride = p_mesh->mp_dl->m_index_stride;
unsigned char * p_index_buffer = &p8[1];
int off = 2 + ( ( cp & ((1<<11)|(1<<12)) ) ? 2 : 0 );
GXVtxFmt format = GX_VTXFMT2;
while ( p8 < p_end )
{
if ( ( p8[0] & 0xf8 ) == GX_TRIANGLESTRIP )
{
format = (GXVtxFmt)(p8[0] & 7);
// Found a triangle strip - parse it.
int num_verts = ( p8[1] << 8 ) | p8[2];
p8 += 3; // Skip GDBegin
num_indices += num_verts;
p8 += stride * 2 * num_verts;
}
else
{
break;
}
}
if( num_indices >= 3 )
{
triSubdivideStack.SetBlockSize( sizeof( sNgcVert ) );
// Create the index buffer.
uint polys = 0;
uint16 idxbuf[1024*3]; // 6k.
uint16 cidxbuf[1024*3]; // 6k.
uint16 tidxbuf[1024*3]; // 6k.
uint16 * p_dest = idxbuf;
uint16 * p_cdest = cidxbuf;
uint16 * p_tdest = tidxbuf;
uint8 * p_source = (uint8*)p_index_buffer;
uint16 total = 0;
while ( total < num_indices )
{
uint16 num = ( p_source[0] << 8 ) | p_source[1];
p_source += 2;
uint16 i0, ci0, ti0;
uint16 i1 = ( p_source[0] << 8 ) | p_source[1];
uint16 ci1 = ( p_source[off+0] << 8 ) | p_source[off+1];
uint16 ti1 = ( p_source[off+2] << 8 ) | p_source[off+3];
p_source += stride * 2;
uint16 i2 = ( p_source[0] << 8 ) | p_source[1];
uint16 ci2 = ( p_source[off+0] << 8 ) | p_source[off+1];
uint16 ti2 = ( p_source[off+2] << 8 ) | p_source[off+3];
p_source += stride * 2;
for ( int vv = 2; vv < num; vv++ )
{
i0 = i1;
i1 = i2;
i2 = ( p_source[0] << 8 ) | p_source[1];
ci0 = ci1;
ci1 = ci2;
ci2 = ( p_source[off+0] << 8 ) | p_source[off+1];
ti0 = ti1;
ti1 = ti2;
ti2 = ( p_source[off+2] << 8 ) | p_source[off+3];
p_source += stride * 2;
*p_dest++ = i0;
*p_dest++ = i1;
*p_dest++ = i2;
*p_cdest++ = ci0;
*p_cdest++ = ci1;
*p_cdest++ = ci2;
*p_tdest++ = ti0;
*p_tdest++ = ti1;
*p_tdest++ = ti2;
polys++;
}
p_source += 1;
total += num + 1; // Count each index + the count.
}
// First scan through each non-degenerate tri, counting them to see how many verts we'll need.
// We also have to figure the area of the tris here, since we need to calculate the worst case given the requirements for subdivision.
uint32 valid_tris = 0;
for( uint32 i = 0; i < polys; ++i )
{
// Wrap the indices round.
uint16 index0 = idxbuf[(i*3)+0];
uint16 index1 = idxbuf[(i*3)+1];
uint16 index2 = idxbuf[(i*3)+2];
uint16 cindex0 = cidxbuf[(i*3)+0];
uint16 cindex1 = cidxbuf[(i*3)+1];
uint16 cindex2 = cidxbuf[(i*3)+2];
uint16 tindex0 = tidxbuf[(i*3)+0];
uint16 tindex1 = tidxbuf[(i*3)+1];
uint16 tindex2 = tidxbuf[(i*3)+2];
if(( index0 != index1 ) && ( index0 != index2 ) && ( index1 != index2 ))
{
++valid_tris;
sNgcVert v0;
sNgcVert v1;
sNgcVert v2;
if ( p_mesh->mp_dl->mp_pos_pool )
{
v0.pos.Set( p_mesh->mp_dl->mp_pos_pool[(index0*3)+0],
p_mesh->mp_dl->mp_pos_pool[(index0*3)+1],
p_mesh->mp_dl->mp_pos_pool[(index0*3)+2] );
v1.pos.Set( p_mesh->mp_dl->mp_pos_pool[(index1*3)+0],
p_mesh->mp_dl->mp_pos_pool[(index1*3)+1],
p_mesh->mp_dl->mp_pos_pool[(index1*3)+2] );
v2.pos.Set( p_mesh->mp_dl->mp_pos_pool[(index2*3)+0],
p_mesh->mp_dl->mp_pos_pool[(index2*3)+1],
p_mesh->mp_dl->mp_pos_pool[(index2*3)+2] );
}
else
{
v0.pos.Set( p_scene->mp_pos_pool[(index0*3)+0],
p_scene->mp_pos_pool[(index0*3)+1],
p_scene->mp_pos_pool[(index0*3)+2] );
v1.pos.Set( p_scene->mp_pos_pool[(index1*3)+0],
p_scene->mp_pos_pool[(index1*3)+1],
p_scene->mp_pos_pool[(index1*3)+2] );
v2.pos.Set( p_scene->mp_pos_pool[(index2*3)+0],
p_scene->mp_pos_pool[(index2*3)+1],
p_scene->mp_pos_pool[(index2*3)+2] );
}
if ( p_scene->mp_col_pool )
{
if ( p_mesh->mp_dl->mp_col_pool )
{
v0.col = *((GXColor*)&p_mesh->mp_dl->mp_col_pool[cindex0]);
v1.col = *((GXColor*)&p_mesh->mp_dl->mp_col_pool[cindex1]);
v2.col = *((GXColor*)&p_mesh->mp_dl->mp_col_pool[cindex2]);
}
else
{
v0.col = *((GXColor*)&p_scene->mp_col_pool[cindex0]);
v1.col = *((GXColor*)&p_scene->mp_col_pool[cindex1]);
v2.col = *((GXColor*)&p_scene->mp_col_pool[cindex2]);
}
}
if ( p_scene->mp_tex_pool )
{
v0.u = p_scene->mp_tex_pool[(tindex0*2)+0];
v0.v = p_scene->mp_tex_pool[(tindex0*2)+1];
v1.u = p_scene->mp_tex_pool[(tindex1*2)+0];
v1.v = p_scene->mp_tex_pool[(tindex1*2)+1];
v2.u = p_scene->mp_tex_pool[(tindex2*2)+0];
v2.v = p_scene->mp_tex_pool[(tindex2*2)+1];
}
v0.pos[W] = v1.pos[W] = v2.pos[W] = 1.0f; // Make sure they are points, not vectors
// Push this tri onto the stack.
triSubdivideStack.Push( &v0 );
triSubdivideStack.Push( &v1 );
triSubdivideStack.Push( &v2 );
// Figure the area of this tri.
Mth::Vector p( v1.pos[X] - v0.pos[X], v1.pos[Y] - v0.pos[Y], v1.pos[Z] - v0.pos[Z], 0.0f );
Mth::Vector q( v2.pos[X] - v0.pos[X], v2.pos[Y] - v0.pos[Y], v2.pos[Z] - v0.pos[Z], 0.0f );
Mth::Vector r(( p[Y] * q[Z] ) - ( q[Y] * p[Z] ), ( p[Z] * q[X] ) - ( q[Z] * p[X] ), ( p[X] * q[Y] ) - ( q[X] * p[Y] ), 0.0f);
float area_squared = r.LengthSqr();
if( area_squared > shatterAreaTest )
{
// We will need to subdivide - each subdivision will result in an area one quarter the previous area
// (and thusly the square of the area will be one sixteenth the previous area).
int num_extra_tris = 1;
while( area_squared > shatterAreaTest )
{
num_extra_tris *= 4;
area_squared *= ( 1.0f / 16.0f );
}
// This original tri will not be added...
--valid_tris;
// ...however, the subdivided versions will.
valid_tris += num_extra_tris;
}
}
}
if( valid_tris == 0 )
{
continue;
}
// Create a tracking structure for this mesh.
sNgcShatterInstanceDetails *p_details = new sNgcShatterInstanceDetails( valid_tris, p_mesh, p_scene, format );
sNgcVert *p_write_vertex = p_details->mp_vertex_buffer;
uint32 details_index = 0;
Mth::Vector spread_center = shatterVelocity * -shatterSpreadFactor;
float base_speed = shatterVelocity.Length();
spread_center[X] += p_mesh->mp_dl->m_sphere[0];
spread_center[Y] += p_mesh->mp_dl->m_sphere[1];
spread_center[Z] += p_mesh->mp_dl->m_sphere[2];
// Add the tracking structure to the table.
p_shatter_details_table->PutItem((uint32)p_details, p_details );
// Process-subdivide the entire stack.
sNgcVert *p_copy_vertex = p_write_vertex;
while( subdivide_tri_stack( &p_write_vertex, p_mesh ));
// Copy the (possibly subdivided) vertex data over.
while( p_copy_vertex < p_write_vertex )
{
Mth::Vector *p_vert0 = &p_copy_vertex[0].pos;
Mth::Vector *p_vert1 = &p_copy_vertex[1].pos;
Mth::Vector *p_vert2 = &p_copy_vertex[2].pos;
// Calculate position as the midpoint of the three vertices per poly.
p_details->mp_positions[details_index][X] = ( p_vert0->GetX() + p_vert1->GetX() + p_vert2->GetX() ) * ( 1.0f / 3.0f );
p_details->mp_positions[details_index][Y] = ( p_vert0->GetY() + p_vert1->GetY() + p_vert2->GetY() ) * ( 1.0f / 3.0f );
p_details->mp_positions[details_index][Z] = ( p_vert0->GetZ() + p_vert1->GetZ() + p_vert2->GetZ() ) * ( 1.0f / 3.0f );
// Calculate the vector <velocity> back from the bounding box of the object. Then use this to figure the 'spread' of the
// shards by calculating the vector from this position to the center of each shard.
float speed = base_speed + ( base_speed * (( shatterVelocityVariance * rand() ) / RAND_MAX ));
p_details->mp_velocities[details_index] = ( p_details->mp_positions[details_index] - spread_center ).Normalize( speed );
Mth::Vector axis( -1.0f + ( 2.0f * (float)rand() / RAND_MAX ), -1.0f + ( 2.0f * (float)rand() / RAND_MAX ), -1.0f + ( 2.0f * (float)rand() / RAND_MAX ));
axis.Normalize();
p_details->mp_matrices[details_index].Ident();
p_details->mp_matrices[details_index].Rotate( axis, 0.1f * ((float)rand() / RAND_MAX ));
p_copy_vertex += 3;
++details_index;
}
}
}
#endif
}
/******************************************************************************
*
*
*****************************************************************************/
void plat_shatter_update( sShatterInstanceDetails *p_details, float framelength )
{
sNgcShatterInstanceDetails *p_Ngc_details = static_cast<sNgcShatterInstanceDetails*>( p_details );
sNgcVert *p_vert_data = p_Ngc_details->mp_vertex_buffer;
for( int i = 0; i < p_details->m_num_triangles; ++i )
{
Mth::Vector *p_v0 = &p_vert_data[(i*3)+0].pos;
Mth::Vector *p_v1 = &p_vert_data[(i*3)+1].pos;
Mth::Vector *p_v2 = &p_vert_data[(i*3)+2].pos;
// To move the shatter pieces:
// 1) subtract position from each vertex
// 2) rotate
// 3) update position with velocity
// 4) add new position to each vertex
// The matrix holds 3 vectors at once.
Mth::Matrix m;
m[X].Set( p_v0->GetX() - p_details->mp_positions[i][X], p_v0->GetY() - p_details->mp_positions[i][Y], p_v0->GetZ() - p_details->mp_positions[i][Z] );
m[Y].Set( p_v1->GetX() - p_details->mp_positions[i][X], p_v1->GetY() - p_details->mp_positions[i][Y], p_v1->GetZ() - p_details->mp_positions[i][Z] );
m[Z].Set( p_v2->GetX() - p_details->mp_positions[i][X], p_v2->GetY() - p_details->mp_positions[i][Y], p_v2->GetZ() - p_details->mp_positions[i][Z] );
m[X].Rotate( p_details->mp_matrices[i] );
m[Y].Rotate( p_details->mp_matrices[i] );
m[Z].Rotate( p_details->mp_matrices[i] );
// Update the position and velocity of the shatter piece, dealing with bouncing if necessary.
p_details->UpdateParameters( i, framelength );
m[X] += p_details->mp_positions[i];
m[Y] += p_details->mp_positions[i];
m[Z] += p_details->mp_positions[i];
p_v0->Set( m[X][X], m[X][Y], m[X][Z] );
p_v1->Set( m[Y][X], m[Y][Y], m[Y][Z] );
p_v2->Set( m[Z][X], m[Z][Y], m[Z][Z] );
}
}
/******************************************************************************
*
*
*****************************************************************************/
void plat_shatter_render( sShatterInstanceDetails *p_details )
{
sNgcShatterInstanceDetails *p_Ngc_details = static_cast<sNgcShatterInstanceDetails*>( p_details );
Dbg_Assert( p_Ngc_details );
// p_Ngc_details->mp_mesh->mp_material->Submit( 0, (GXColor){0,0,0,0} );
NxNgc::MaterialSubmit( p_Ngc_details->mp_mesh, p_Ngc_details->mp_scene );
GX::SetChanCtrl( GX_COLOR0, GX_ENABLE, GX_SRC_VTX, GX_SRC_REG, GX_LIGHT_NULL, GX_DF_NONE, GX_AF_NONE );
GX::SetChanCtrl( GX_ALPHA0, GX_DISABLE, GX_SRC_VTX, GX_SRC_VTX, GX_LIGHT_NULL, GX_DF_NONE, GX_AF_NONE );
// GX::SetChanMatColor( GX_COLOR0A0, p_Ngc_details->mp_mesh->m_base_color );
GX::SetChanMatColor( GX_COLOR0A0, (GXColor){128,128,128,255} );
// GX::SetTexCoordGen( GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_FALSE, GX_IDENTITY );
// Render the triangles
GX::SetVtxDesc( 3, GX_VA_POS, GX_DIRECT, GX_VA_CLR0, GX_DIRECT, GX_VA_TEX0, GX_DIRECT );
GX::Begin( GX_TRIANGLES, p_Ngc_details->m_vertex_format, p_Ngc_details->m_num_triangles * 3 );
sNgcVert *p_vert_array = p_Ngc_details->mp_vertex_buffer;
for (int i = 0; i < p_Ngc_details->m_num_triangles; i++, p_vert_array += 3)
{
GX::Position3f32( p_vert_array[0].pos[X], p_vert_array[0].pos[Y], p_vert_array[0].pos[Z] );
GX::Color1u32(*((u32*)&(p_vert_array[0].col)));
GX::TexCoord2s16( p_vert_array[0].u, p_vert_array[0].v );
GX::Position3f32( p_vert_array[1].pos[X], p_vert_array[1].pos[Y], p_vert_array[1].pos[Z] );
GX::Color1u32(*((u32*)&(p_vert_array[1].col)));
GX::TexCoord2s16( p_vert_array[1].u, p_vert_array[1].v );
GX::Position3f32( p_vert_array[2].pos[X], p_vert_array[2].pos[Y], p_vert_array[2].pos[Z] );
GX::Color1u32(*((u32*)&(p_vert_array[2].col)));
GX::TexCoord2s16( p_vert_array[2].u, p_vert_array[2].v );
}
GX::End();
}
///////////////////////////////////////////////////////////////////
//
// FOG
//
///////////////////////////////////////////////////////////////////
/******************************************************************/
/* */
/* */
/******************************************************************/
static bool fogEnabled = false;
static GXColor fogColor = (GXColor){ 0, 0, 0, 0 };
static float fogNear = 0.0f;
static float fogFar = 0.0f;
void CFog::s_plat_enable_fog(bool enable)
{
if( enable != fogEnabled )
{
// If we're disabling, reset to default values.
if ( !enable )
{
fogColor = (GXColor){ 0, 0, 0, 0 };
fogNear = 0.0f;
fogFar = 0.0f;
}
fogEnabled = enable;
}
}
void CFog::s_plat_set_fog_exponent(float exponent)
{
// Dbg_Message("Stub: CFog::SetFogExponent()");
}
void CFog::s_plat_set_fog_rgba(Image::RGBA rgba)
{
fogColor.r = rgba.r;
fogColor.g = rgba.g;
fogColor.b = rgba.b;
fogColor.a = rgba.a;
// fogFar = 1000.0f * ( 128.0f / (float)fogColor.a );
fogFar = 20000.0f * ( 128.0f / (float)fogColor.a );
}
void CFog::s_plat_set_fog_near_distance(float distance)
{
fogNear = distance;
// fogFar = 1000.0f * ( 128.0f / (float)fogColor.a );
fogFar = 20000.0f * ( 128.0f / (float)fogColor.a );
}
void CFog::s_plat_set_fog_color( void )
{
GX::SetFogColor( fogColor );
}
/******************************************************************/
/* */
/* */
/******************************************************************/
void CFog::s_plat_fog_update( void )
{
if( fogEnabled )
{
GX::SetFog( GX_FOG_EXP, fogNear, fogFar, 2.0f, 20000.0f, fogColor );
}
else
{
GX::SetFog( GX_FOG_NONE, 0.0f, 0.0f, 0.0f, 0.0f, fogColor );
}
}
} // Nx
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