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xash3d-fwgs
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xash3d-fwgs/ref_vk/vk_brush.c

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#include "vk_brush.h"
#include "vk_core.h"
#include "vk_const.h"
#include "vk_buffer.h"
#include "vk_pipeline.h"
#include "vk_framectl.h"
#include "vk_math.h"
#include "vk_textures.h"
#include "vk_lightmap.h"
#include "vk_scene.h"
#include "vk_render.h"
#include "vk_light.h"
#include "vk_mapents.h"
#include "ref_params.h"
#include "eiface.h"
#include <math.h>
#include <memory.h>
static struct {
struct {
int num_vertices, num_indices;
} stat;
int rtable[MOD_FRAMES][MOD_FRAMES];
} g_brush;
void VK_InitRandomTable( void )
{
int tu, tv;
// make random predictable
gEngine.COM_SetRandomSeed( 255 );
for( tu = 0; tu < MOD_FRAMES; tu++ )
{
for( tv = 0; tv < MOD_FRAMES; tv++ )
{
g_brush.rtable[tu][tv] = gEngine.COM_RandomLong( 0, 0x7FFF );
}
}
gEngine.COM_SetRandomSeed( 0 );
}
qboolean VK_BrushInit( void )
{
VK_InitRandomTable ();
return true;
}
void VK_BrushShutdown( void )
{
}
// speed up sin calculations
static const float r_turbsin[] =
{
#include "warpsin.h"
};
#define SUBDIVIDE_SIZE 64
#define TURBSCALE ( 256.0f / ( M_PI2 ))
/*
=============
EmitWaterPolys
Does a water warp on the pre-fragmented glpoly_t chain
=============
*/
static void EmitWaterPolys( const cl_entity_t *ent, const msurface_t *warp, qboolean reverse )
{
const float time = gpGlobals->time;
float *v, nv, waveHeight;
float s, t, os, ot;
glpoly_t *p;
int i;
int num_vertices = 0, num_indices = 0;
xvk_render_buffer_allocation_t vertex_buffer, index_buffer = {0};
int vertex_offset = 0;
vk_vertex_t *gpu_vertices;
uint16_t *indices;
#define MAX_WATER_VERTICES 16
vk_vertex_t poly_vertices[MAX_WATER_VERTICES];
const qboolean useQuads = FBitSet( warp->flags, SURF_DRAWTURB_QUADS );
if( !warp->polys ) return;
// set the current waveheight
// FIXME VK if( warp->polys->verts[0][2] >= RI.vieworg[2] )
// waveHeight = -ent->curstate.scale;
// else
waveHeight = ent->curstate.scale;
// reset fog color for nonlightmapped water
// FIXME VK GL_ResetFogColor();
// Compute vertex count
for( p = warp->polys; p; p = p->next ) {
const int triangles = p->numverts - 2;
num_vertices += p->numverts;
num_indices += triangles * 3;
}
vertex_buffer = XVK_RenderBufferAllocAndLock( sizeof(vk_vertex_t), num_vertices );
index_buffer = XVK_RenderBufferAllocAndLock( sizeof(uint16_t), num_indices );
if (vertex_buffer.ptr == NULL || index_buffer.ptr == NULL)
{
// TODO should we free one of the above if it still succeeded?
gEngine.Con_Printf(S_ERROR "Ran out of buffer space\n");
return;
}
gpu_vertices = vertex_buffer.ptr;
indices = index_buffer.ptr;
for( p = warp->polys; p; p = p->next )
{
ASSERT(p->numverts <= MAX_WATER_VERTICES);
if( reverse )
v = p->verts[0] + ( p->numverts - 1 ) * VERTEXSIZE;
else v = p->verts[0];
for( i = 0; i < p->numverts; i++ )
{
if( waveHeight )
{
nv = r_turbsin[(int)(time * 160.0f + v[1] + v[0]) & 255] + 8.0f;
nv = (r_turbsin[(int)(v[0] * 5.0f + time * 171.0f - v[1]) & 255] + 8.0f ) * 0.8f + nv;
nv = nv * waveHeight + v[2];
}
else nv = v[2];
os = v[3];
ot = v[4];
s = os + r_turbsin[(int)((ot * 0.125f + gpGlobals->time) * TURBSCALE) & 255];
s *= ( 1.0f / SUBDIVIDE_SIZE );
t = ot + r_turbsin[(int)((os * 0.125f + gpGlobals->time) * TURBSCALE) & 255];
t *= ( 1.0f / SUBDIVIDE_SIZE );
poly_vertices[i].pos[0] = v[0];
poly_vertices[i].pos[1] = v[1];
poly_vertices[i].pos[2] = nv;
poly_vertices[i].gl_tc[0] = s;
poly_vertices[i].gl_tc[1] = t;
poly_vertices[i].lm_tc[0] = 0;
poly_vertices[i].lm_tc[1] = 0;
#define WATER_NORMALS
poly_vertices[i].normal[0] = 0;
poly_vertices[i].normal[1] = 0;
#ifdef WATER_NORMALS
poly_vertices[i].normal[2] = 0;
#else
poly_vertices[i].normal[2] = 1;
#endif
// Ray tracing apparently expects triangle list only (although spec is not very clear about this kekw)
if (i > 1) {
#ifdef WATER_NORMALS
vec3_t e0, e1, normal;
VectorSubtract( poly_vertices[i - 1].pos, poly_vertices[0].pos, e0 );
VectorSubtract( poly_vertices[i].pos, poly_vertices[0].pos, e1 );
CrossProduct( e1, e0, normal );
//VectorNormalize(normal);
VectorAdd(normal, poly_vertices[0].normal, poly_vertices[0].normal);
VectorAdd(normal, poly_vertices[i].normal, poly_vertices[i].normal);
VectorAdd(normal, poly_vertices[i - 1].normal, poly_vertices[i - 1].normal);
#endif
*(indices++) = (uint16_t)(vertex_offset);
*(indices++) = (uint16_t)(vertex_offset + i - 1);
*(indices++) = (uint16_t)(vertex_offset + i);
}
if( reverse )
v -= VERTEXSIZE;
else
v += VERTEXSIZE;
}
#ifdef WATER_NORMALS
for( i = 0; i < p->numverts; i++ ) {
VectorNormalize(poly_vertices[i].normal);
}
#endif
memcpy(gpu_vertices + vertex_offset, poly_vertices, sizeof(vk_vertex_t) * p->numverts);
vertex_offset += p->numverts;
}
XVK_RenderBufferUnlock( vertex_buffer.buffer );
XVK_RenderBufferUnlock( index_buffer.buffer );
// Render
{
const vk_render_geometry_t geometry = {
.texture = warp->texinfo->texture->gl_texturenum, // FIXME assert >= 0
.material = kXVkMaterialWater,
.surf = warp,
.max_vertex = num_vertices,
.vertex_offset = vertex_buffer.buffer.unit.offset,
.element_count = num_indices,
.index_offset = index_buffer.buffer.unit.offset,
};
VK_RenderModelDynamicAddGeometry( &geometry );
}
// FIXME VK GL_SetupFogColorForSurfaces();
}
void XVK_DrawWaterSurfaces( const cl_entity_t *ent )
{
const model_t *model = ent->model;
vec3_t mins, maxs;
if( !VectorIsNull( ent->angles ))
{
for( int i = 0; i < 3; i++ )
{
mins[i] = ent->origin[i] - model->radius;
maxs[i] = ent->origin[i] + model->radius;
}
//rotated = true;
}
else
{
VectorAdd( ent->origin, model->mins, mins );
VectorAdd( ent->origin, model->maxs, maxs );
//rotated = false;
}
// if( R_CullBox( mins, maxs ))
// return;
VK_RenderModelDynamicBegin( ent->curstate.rendermode, "%s water", model->name );
// Iterate through all surfaces, find *TURB*
for( int i = 0; i < model->nummodelsurfaces; i++ )
{
const msurface_t *surf = model->surfaces + model->firstmodelsurface + i;
if( !FBitSet( surf->flags, SURF_DRAWTURB ) && !FBitSet( surf->flags, SURF_DRAWTURB_QUADS) )
continue;
if( surf->plane->type != PLANE_Z && !FBitSet( ent->curstate.effects, EF_WATERSIDES ))
continue;
if( mins[2] + 1.0f >= surf->plane->dist )
continue;
EmitWaterPolys( ent, surf, false );
}
// submit as dynamic model
VK_RenderModelDynamicCommit();
// TODO:
// - upload water geometry only once, animate in compute/vertex shader
}
/*
===============
R_TextureAnimation
Returns the proper texture for a given time and surface
===============
*/
static const texture_t *R_TextureAnimation( const cl_entity_t *ent, const msurface_t *s, const struct texture_s *base_override )
{
const texture_t *base = base_override ? base_override : s->texinfo->texture;
int count, reletive;
if( ent && ent->curstate.frame )
{
if( base->alternate_anims )
base = base->alternate_anims;
}
if( !base->anim_total )
return base;
if( base->name[0] == '-' )
{
int tx = (int)((s->texturemins[0] + (base->width << 16)) / base->width) % MOD_FRAMES;
int ty = (int)((s->texturemins[1] + (base->height << 16)) / base->height) % MOD_FRAMES;
reletive = g_brush.rtable[tx][ty] % base->anim_total;
}
else
{
int speed;
// Quake1 textures uses 10 frames per second
if( FBitSet( findTexture( base->gl_texturenum )->flags, TF_QUAKEPAL ))
speed = 10;
else speed = 20;
reletive = (int)(gpGlobals->time * speed) % base->anim_total;
}
count = 0;
while( base->anim_min > reletive || base->anim_max <= reletive )
{
base = base->anim_next;
if( !base || ++count > MOD_FRAMES )
return s->texinfo->texture;
}
return base;
}
void VK_BrushModelDraw( const cl_entity_t *ent, int render_mode )
{
// Expect all buffers to be bound
const model_t *mod = ent->model;
vk_brush_model_t *bmodel = mod->cache.data;
if (!bmodel) {
gEngine.Con_Printf( S_ERROR "Model %s wasn't loaded\n", mod->name);
return;
}
if (bmodel->num_water_surfaces) {
XVK_DrawWaterSurfaces(ent);
}
if (bmodel->render_model.num_geometries == 0)
return;
for (int i = 0; i < bmodel->render_model.num_geometries; ++i) {
vk_render_geometry_t *geom = bmodel->render_model.geometries + i;
const int surface_index = geom->surf - mod->surfaces;
const struct texture_s *override = g_map_entities.patch.surfaces ? g_map_entities.patch.surfaces[surface_index].tex : NULL;
const texture_t *t = R_TextureAnimation(ent, geom->surf, override);
if (t->gl_texturenum < 0)
continue;
geom->texture = t->gl_texturenum;
}
bmodel->render_model.render_mode = render_mode;
VK_RenderModelDraw(ent, &bmodel->render_model);
}
static qboolean renderableSurface( const msurface_t *surf, int i ) {
// if ( i >= 0 && (surf->flags & ~(SURF_PLANEBACK | SURF_UNDERWATER | SURF_TRANSPARENT)) != 0)
// {
// gEngine.Con_Reportf("\t%d flags: ", i);
// #define PRINTFLAGS(X) \
// X(SURF_PLANEBACK) \
// X(SURF_DRAWSKY) \
// X(SURF_DRAWTURB_QUADS) \
// X(SURF_DRAWTURB) \
// X(SURF_DRAWTILED) \
// X(SURF_CONVEYOR) \
// X(SURF_UNDERWATER) \
// X(SURF_TRANSPARENT)
// #define PRINTFLAG(f) if (FBitSet(surf->flags, f)) gEngine.Con_Reportf(" %s", #f);
// PRINTFLAGS(PRINTFLAG)
// gEngine.Con_Reportf("\n");
// }
//
if (g_map_entities.patch.surfaces && g_map_entities.patch.surfaces[i].flags & Patch_Surface_Delete)
return false;
//if( surf->flags & ( SURF_DRAWSKY | SURF_DRAWTURB | SURF_CONVEYOR | SURF_DRAWTURB_QUADS ) ) {
if( surf->flags & ( SURF_DRAWTURB | SURF_DRAWTURB_QUADS ) ) {
//if( surf->flags & ( SURF_DRAWSKY | SURF_CONVEYOR ) ) {
// FIXME don't print this on second sort-by-texture pass
//gEngine.Con_Reportf("Skipping surface %d because of flags %08x\n", i, surf->flags);
return false;
}
// Explicitly enable SURF_SKY, otherwise they will be skipped by SURF_DRAWTILED
if( FBitSet( surf->flags, SURF_DRAWSKY )) {
return true;
}
if( FBitSet( surf->flags, SURF_DRAWTILED )) {
//gEngine.Con_Reportf("Skipping surface %d because of tiled flag\n", i);
return false;
}
return true;
}
typedef struct {
int num_surfaces, num_vertices, num_indices;
int max_texture_id;
int water_surfaces;
//int sky_surfaces;
} model_sizes_t;
static model_sizes_t computeSizes( const model_t *mod ) {
model_sizes_t sizes = {0};
for( int i = 0; i < mod->nummodelsurfaces; ++i)
{
const int surface_index = mod->firstmodelsurface + i;
const msurface_t *surf = mod->surfaces + surface_index;
sizes.water_surfaces += !!(surf->flags & (SURF_DRAWTURB | SURF_DRAWTURB_QUADS));
if (!renderableSurface(surf, surface_index))
continue;
++sizes.num_surfaces;
sizes.num_vertices += surf->numedges;
sizes.num_indices += 3 * (surf->numedges - 1);
if (surf->texinfo->texture->gl_texturenum > sizes.max_texture_id)
sizes.max_texture_id = surf->texinfo->texture->gl_texturenum;
}
return sizes;
}
static qboolean loadBrushSurfaces( model_sizes_t sizes, const model_t *mod ) {
vk_brush_model_t *bmodel = mod->cache.data;
uint32_t vertex_offset = 0;
int num_geometries = 0;
xvk_render_buffer_allocation_t vertex_buffer, index_buffer;
vk_vertex_t *bvert = NULL;
uint16_t *bind = NULL;
uint32_t index_offset = 0;
vertex_buffer = XVK_RenderBufferAllocAndLock( sizeof(vk_vertex_t), sizes.num_vertices );
index_buffer = XVK_RenderBufferAllocAndLock( sizeof(uint16_t), sizes.num_indices );
if (vertex_buffer.ptr == NULL || index_buffer.ptr == NULL) {
gEngine.Con_Printf(S_ERROR "Ran out of buffer space\n");
return false;
}
bvert = vertex_buffer.ptr;
bind = index_buffer.ptr;
index_offset = index_buffer.buffer.unit.offset;
// Load sorted by gl_texturenum
for (int t = 0; t <= sizes.max_texture_id; ++t)
{
for( int i = 0; i < mod->nummodelsurfaces; ++i)
{
const int surface_index = mod->firstmodelsurface + i;
msurface_t *surf = mod->surfaces + surface_index;
mextrasurf_t *info = surf->info;
vk_render_geometry_t *model_geometry = bmodel->render_model.geometries + num_geometries;
const float sample_size = gEngine.Mod_SampleSizeForFace( surf );
int index_count = 0;
vec3_t tangent;
int tex_id = surf->texinfo->texture->gl_texturenum;
const xvk_patch_surface_t *const psurf = g_map_entities.patch.surfaces ? g_map_entities.patch.surfaces + surface_index : NULL;
if (!renderableSurface(surf, surface_index))
continue;
if (psurf && psurf->flags & Patch_Surface_Texture)
tex_id = psurf->tex_id;
if (t != tex_id)
continue;
++num_geometries;
//gEngine.Con_Reportf( "surface %d: numverts=%d numedges=%d\n", i, surf->polys ? surf->polys->numverts : -1, surf->numedges );
if (vertex_offset + surf->numedges >= UINT16_MAX)
{
gEngine.Con_Printf(S_ERROR "Model %s indices don't fit into 16 bits\n", mod->name);
// FIXME unlock and free buffers
return false;
}
model_geometry->surf = surf;
model_geometry->texture = tex_id;
model_geometry->vertex_offset = vertex_buffer.buffer.unit.offset;
model_geometry->max_vertex = vertex_offset + surf->numedges;
model_geometry->index_offset = index_offset;
if( FBitSet( surf->flags, SURF_DRAWSKY )) {
model_geometry->material = kXVkMaterialSky;
} else {
model_geometry->material = kXVkMaterialRegular;
if (!FBitSet( surf->flags, SURF_DRAWTILED )) {
VK_CreateSurfaceLightmap( surf, mod );
}
}
if (FBitSet( surf->flags, SURF_CONVEYOR )) {
model_geometry->material = kXVkMaterialConveyor;
}
// FIXME material should be flags
if (psurf && psurf->flags & Patch_Surface_Emissive) {
model_geometry->material = kXVkMaterialEmissive;
VectorCopy(psurf->emissive, model_geometry->emissive);
}
VectorCopy(surf->texinfo->vecs[0], tangent);
VectorNormalize(tangent);
for( int k = 0; k < surf->numedges; k++ )
{
const int iedge = mod->surfedges[surf->firstedge + k];
const medge_t *edge = mod->edges + (iedge >= 0 ? iedge : -iedge);
const mvertex_t *in_vertex = mod->vertexes + (iedge >= 0 ? edge->v[0] : edge->v[1]);
vk_vertex_t vertex = {
{in_vertex->position[0], in_vertex->position[1], in_vertex->position[2]},
};
float s = DotProduct( in_vertex->position, surf->texinfo->vecs[0] ) + surf->texinfo->vecs[0][3];
float t = DotProduct( in_vertex->position, surf->texinfo->vecs[1] ) + surf->texinfo->vecs[1][3];
s /= surf->texinfo->texture->width;
t /= surf->texinfo->texture->height;
vertex.gl_tc[0] = s;
vertex.gl_tc[1] = t;
// lightmap texture coordinates
s = DotProduct( in_vertex->position, info->lmvecs[0] ) + info->lmvecs[0][3];
s -= info->lightmapmins[0];
s += surf->light_s * sample_size;
s += sample_size * 0.5f;
s /= BLOCK_SIZE * sample_size; //fa->texinfo->texture->width;
t = DotProduct( in_vertex->position, info->lmvecs[1] ) + info->lmvecs[1][3];
t -= info->lightmapmins[1];
t += surf->light_t * sample_size;
t += sample_size * 0.5f;
t /= BLOCK_SIZE * sample_size; //fa->texinfo->texture->height;
if( FBitSet( surf->flags, SURF_PLANEBACK ))
VectorNegate( surf->plane->normal, vertex.normal );
else VectorCopy( surf->plane->normal, vertex.normal );
VectorCopy(tangent, vertex.tangent);
vertex.lm_tc[0] = s;
vertex.lm_tc[1] = t;
*(bvert++) = vertex;
// Ray tracing apparently expects triangle list only (although spec is not very clear about this kekw)
if (k > 1) {
*(bind++) = (uint16_t)(vertex_offset + 0);
*(bind++) = (uint16_t)(vertex_offset + k - 1);
*(bind++) = (uint16_t)(vertex_offset + k);
index_count += 3;
index_offset += 3;
}
}
model_geometry->element_count = index_count;
vertex_offset += surf->numedges;
}
}
XVK_RenderBufferUnlock( index_buffer.buffer );
XVK_RenderBufferUnlock( vertex_buffer.buffer );
ASSERT(sizes.num_surfaces == num_geometries);
bmodel->render_model.num_geometries = num_geometries;
return true;
}
qboolean VK_BrushModelLoad( model_t *mod, qboolean map )
{
if (mod->cache.data)
{
gEngine.Con_Reportf( S_WARN "Model %s was already loaded\n", mod->name );
return true;
}
gEngine.Con_Reportf("%s: %s flags=%08x\n", __FUNCTION__, mod->name, mod->flags);
{
const model_sizes_t sizes = computeSizes( mod );
const size_t model_size =
sizeof(vk_brush_model_t) +
sizeof(vk_render_geometry_t) * sizes.num_surfaces;
vk_brush_model_t *bmodel = Mem_Calloc(vk_core.pool, model_size);
mod->cache.data = bmodel;
Q_strncpy(bmodel->render_model.debug_name, mod->name, sizeof(bmodel->render_model.debug_name));
bmodel->render_model.render_mode = kRenderNormal;
bmodel->render_model.static_map = map;
bmodel->num_water_surfaces = sizes.water_surfaces;
if (sizes.num_surfaces != 0) {
bmodel->render_model.geometries = (vk_render_geometry_t*)((char*)(bmodel + 1));
if (!loadBrushSurfaces(sizes, mod) || !VK_RenderModelInit(&bmodel->render_model)) {
gEngine.Con_Printf(S_ERROR "Could not load model %s\n", mod->name);
Mem_Free(bmodel);
return false;
}
}
g_brush.stat.num_indices += sizes.num_indices;
g_brush.stat.num_vertices += sizes.num_vertices;
gEngine.Con_Reportf("Model %s loaded surfaces: %d (of %d); total vertices: %u, total indices: %u\n", mod->name, bmodel->render_model.num_geometries, mod->nummodelsurfaces, g_brush.stat.num_vertices, g_brush.stat.num_indices);
}
return true;
}
void VK_BrushModelDestroy( model_t *mod ) {
vk_brush_model_t *bmodel = mod->cache.data;
ASSERT(mod->type == mod_brush);
if (!bmodel)
return;
VK_RenderModelDestroy(&bmodel->render_model);
Mem_Free(bmodel);
mod->cache.data = NULL;
}
void VK_BrushStatsClear( void )
{
// Free previous map data
g_brush.stat.num_vertices = 0;
g_brush.stat.num_indices = 0;
}
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