/*
=============
RB_SwapBuffers
=============
*/
const void RB_SwapBuffers( const void *data ) {
// texture swapping test
if ( r_showImages.GetInteger() != 0 ) {
RB_ShowImages();
}
// force a gl sync if requested
if ( r_finish.GetBool() ) {
qglFinish();
}
RB_LogComment( "***************** RB_SwapBuffers *****************\n\n\n" );
// don't flip if drawing to front buffer
if ( !r_frontBuffer.GetBool() ) {
GLimp_SwapBuffers();
}
}
/*
==============
RenderBumpTriangles
==============
*/
static void RenderBumpTriangles( srfTriangles_t *lowMesh, renderBump_t *rb ) {
int i, j;
RB_SetGL2D();
qglDisable( GL_CULL_FACE );
qglColor3f( 1, 1, 1 );
qglMatrixMode( GL_PROJECTION );
qglLoadIdentity();
qglOrtho( 0, 1, 1, 0, -1, 1 );
qglDisable( GL_BLEND );
qglMatrixMode( GL_MODELVIEW );
qglLoadIdentity();
qglDisable( GL_DEPTH_TEST );
qglClearColor(1,0,0,1);
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
qglColor3f( 1, 1, 1 );
// create smoothed normals for the surface, which might be
// different than the normals at the vertexes if the
// surface uses unsmoothedNormals, which only takes the
// normal from a single triangle. We need properly smoothed
// normals to make sure that the traces always go off normal
// to the true surface.
idVec3 *lowMeshNormals = (idVec3 *)Mem_ClearedAlloc( lowMesh->numVerts * sizeof( *lowMeshNormals ) );
R_DeriveFacePlanes( lowMesh );
R_CreateSilIndexes( lowMesh ); // recreate, merging the mirrored verts back together
const idPlane *planes = lowMesh->facePlanes;
for ( i = 0 ; i < lowMesh->numIndexes ; i += 3, planes++ ) {
for ( j = 0 ; j < 3 ; j++ ) {
int index;
index = lowMesh->silIndexes[i+j];
lowMeshNormals[index] += (*planes).Normal();
}
}
// normalize and replicate from silIndexes to all indexes
for ( i = 0 ; i < lowMesh->numIndexes ; i++ ) {
lowMeshNormals[lowMesh->indexes[i]] = lowMeshNormals[lowMesh->silIndexes[i]];
lowMeshNormals[lowMesh->indexes[i]].Normalize();
}
// rasterize each low poly face
for ( j = 0 ; j < lowMesh->numIndexes ; j+=3 ) {
// pump the event loop so the window can be dragged around
Sys_GenerateEvents();
RasterizeTriangle( lowMesh, lowMeshNormals, j/3, rb );
qglClearColor(1,0,0,1);
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
qglRasterPos2f( 0, 1 );
qglPixelZoom( glConfig.vidWidth / (float)rb->width, glConfig.vidHeight / (float)rb->height );
qglDrawPixels( rb->width, rb->height, GL_RGBA, GL_UNSIGNED_BYTE, rb->localPic );
qglPixelZoom( 1, 1 );
qglFlush();
GLimp_SwapBuffers();
}
Mem_Free( lowMeshNormals );
}
/*
==============
RenderBumpFlat_f
==============
*/
void RenderBumpFlat_f( const idCmdArgs &args ) {
int width, height;
idStr source;
int i;
idBounds bounds;
srfTriangles_t *mesh;
// update the screen as we print
common->SetRefreshOnPrint( true );
width = height = 256;
// check options
for ( i = 1 ; i < args.Argc() - 1; i++ ) {
const char *s;
s = args.Argv( i );
if ( s[0] == '-' ) {
i++;
s = args.Argv( i );
}
if ( !idStr::Icmp( s, "size" ) ) {
if ( i + 2 >= args.Argc() ) {
i = args.Argc();
break;
}
width = atoi( args.Argv( i + 1 ) );
height = atoi( args.Argv( i + 2 ) );
i += 2;
} else {
common->Printf( "WARNING: Unknown option \"%s\"\n", s );
break;
}
}
if ( i != ( args.Argc() - 1 ) ) {
common->Error( "usage: renderBumpFlat [-size width height] asefile" );
return;
}
common->Printf( "Final image size: %i, %i\n", width, height );
// load the source in "fastload" mode, because we don't
// need tangent and shadow information
source = args.Argv( i );
idRenderModel *highPolyModel = renderModelManager->AllocModel();
highPolyModel->PartialInitFromFile( source );
if ( highPolyModel->IsDefaultModel() ) {
common->Error( "failed to load %s", source.c_str() );
}
// combine the high poly model into a single polyset
if ( highPolyModel->NumSurfaces() != 1 ) {
highPolyModel = CombineModelSurfaces( highPolyModel );
}
// create normals if not present in file
const modelSurface_t *surf = highPolyModel->Surface( 0 );
mesh = surf->geometry;
// bound the entire file
R_BoundTriSurf( mesh );
bounds = mesh->bounds;
SaveWindow();
ResizeWindow( width, height );
// for small images, the viewport may be less than the minimum window
qglViewport( 0, 0, width, height );
qglEnable( GL_CULL_FACE );
qglCullFace( GL_FRONT );
qglDisable( GL_STENCIL_TEST );
qglDisable( GL_SCISSOR_TEST );
qglDisable( GL_ALPHA_TEST );
qglDisable( GL_BLEND );
qglEnable( GL_DEPTH_TEST );
qglDisable( GL_TEXTURE_2D );
qglDepthMask( GL_TRUE );
qglDepthFunc( GL_LEQUAL );
qglColor3f( 1, 1, 1 );
qglMatrixMode( GL_PROJECTION );
qglLoadIdentity();
qglOrtho( bounds[0][0], bounds[1][0], bounds[0][2],
bounds[1][2], -( bounds[0][1] - 1 ), -( bounds[1][1] + 1 ) );
qglMatrixMode( GL_MODELVIEW );
qglLoadIdentity();
// flat maps are automatically anti-aliased
idStr filename;
int j, k, c;
byte *buffer;
int *sumBuffer, *colorSumBuffer;
bool flat;
int sample;
sumBuffer = (int *)Mem_Alloc( width * height * 4 * 4 );
memset( sumBuffer, 0, width * height * 4 * 4 );
buffer = (byte *)Mem_Alloc( width * height * 4 );
colorSumBuffer = (int *)Mem_Alloc( width * height * 4 * 4 );
memset( sumBuffer, 0, width * height * 4 * 4 );
flat = false;
//flat = true;
for ( sample = 0 ; sample < 16 ; sample++ ) {
float xOff, yOff;
xOff = ( ( sample & 3 ) / 4.0 ) * ( bounds[1][0] - bounds[0][0] ) / width;
yOff = ( ( sample / 4 ) / 4.0 ) * ( bounds[1][2] - bounds[0][2] ) / height;
for ( int colorPass = 0 ; colorPass < 2 ; colorPass++ ) {
qglClearColor(0.5,0.5,0.5,0);
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
qglBegin( GL_TRIANGLES );
for ( i = 0 ; i < highPolyModel->NumSurfaces() ; i++ ) {
const modelSurface_t *surf = highPolyModel->Surface( i );
mesh = surf->geometry;
if ( colorPass ) {
// just render the surface color for artist visualization
for ( j = 0 ; j < mesh->numIndexes ; j+=3 ) {
for ( k = 0 ; k < 3 ; k++ ) {
int v;
float *a;
v = mesh->indexes[j+k];
qglColor3ubv( mesh->verts[v].color );
a = mesh->verts[v].xyz.ToFloatPtr();
qglVertex3f( a[0] + xOff, a[2] + yOff, a[1] );
}
}
} else {
// render as normal map
// we can either flat shade from the plane,
// or smooth shade from the vertex normals
for ( j = 0 ; j < mesh->numIndexes ; j+=3 ) {
if ( flat ) {
idPlane plane;
idVec3 *a, *b, *c;
int v1, v2, v3;
v1 = mesh->indexes[j+0];
v2 = mesh->indexes[j+1];
v3 = mesh->indexes[j+2];
a = &mesh->verts[ v1 ].xyz;
b = &mesh->verts[ v2 ].xyz;
c = &mesh->verts[ v3 ].xyz;
plane.FromPoints( *a, *b, *c );
// NULLNORMAL is used by the artists to force an area to reflect no
// light at all
if ( surf->shader->GetSurfaceFlags() & SURF_NULLNORMAL ) {
qglColor3f( 0.5, 0.5, 0.5 );
} else {
qglColor3f( 0.5 + 0.5*plane[0], 0.5 - 0.5*plane[2], 0.5 - 0.5*plane[1] );
}
qglVertex3f( (*a)[0] + xOff, (*a)[2] + yOff, (*a)[1] );
qglVertex3f( (*b)[0] + xOff, (*b)[2] + yOff, (*b)[1] );
qglVertex3f( (*c)[0] + xOff, (*c)[2] + yOff, (*c)[1] );
} else {
for ( k = 0 ; k < 3 ; k++ ) {
int v;
float *n;
float *a;
v = mesh->indexes[j+k];
n = mesh->verts[v].normal.ToFloatPtr();
// NULLNORMAL is used by the artists to force an area to reflect no
// light at all
if ( surf->shader->GetSurfaceFlags() & SURF_NULLNORMAL ) {
qglColor3f( 0.5, 0.5, 0.5 );
} else {
// we are going to flip the normal Z direction
qglColor3f( 0.5 + 0.5*n[0], 0.5 - 0.5*n[2], 0.5 - 0.5*n[1] );
}
a = mesh->verts[v].xyz.ToFloatPtr();
qglVertex3f( a[0] + xOff, a[2] + yOff, a[1] );
}
}
}
}
}
qglEnd();
qglFlush();
GLimp_SwapBuffers();
qglReadPixels( 0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, buffer );
c = width * height;
if ( colorPass ) {
// add to the sum buffer
for ( i = 0 ; i < c ; i++ ) {
colorSumBuffer[i*4+0] += buffer[i*4+0];
colorSumBuffer[i*4+1] += buffer[i*4+1];
colorSumBuffer[i*4+2] += buffer[i*4+2];
colorSumBuffer[i*4+3] += buffer[i*4+3];
}
} else {
// normalize
for ( i = 0 ; i < c ; i++ ) {
idVec3 v;
v[0] = ( buffer[i*4+0] - 128 ) / 127.0;
v[1] = ( buffer[i*4+1] - 128 ) / 127.0;
v[2] = ( buffer[i*4+2] - 128 ) / 127.0;
v.Normalize();
buffer[i*4+0] = 128 + 127 * v[0];
buffer[i*4+1] = 128 + 127 * v[1];
buffer[i*4+2] = 128 + 127 * v[2];
}
// outline into non-drawn areas
for ( i = 0 ; i < 8 ; i++ ) {
OutlineNormalMap( buffer, width, height, 128, 128, 128 );
}
// add to the sum buffer
for ( i = 0 ; i < c ; i++ ) {
sumBuffer[i*4+0] += buffer[i*4+0];
sumBuffer[i*4+1] += buffer[i*4+1];
sumBuffer[i*4+2] += buffer[i*4+2];
sumBuffer[i*4+3] += buffer[i*4+3];
}
}
}
}
c = width * height;
// save out the color map
for ( i = 0 ; i < c ; i++ ) {
buffer[i*4+0] = colorSumBuffer[i*4+0] / 16;
buffer[i*4+1] = colorSumBuffer[i*4+1] / 16;
buffer[i*4+2] = colorSumBuffer[i*4+2] / 16;
buffer[i*4+3] = colorSumBuffer[i*4+3] / 16;
}
filename = source;
filename.StripFileExtension();
filename.Append( "_color.tga" );
R_VerticalFlip( buffer, width, height );
R_WriteTGA( filename, buffer, width, height );
// save out the local map
// scale the sum buffer back down to the sample buffer
// we allow this to denormalize
for ( i = 0 ; i < c ; i++ ) {
buffer[i*4+0] = sumBuffer[i*4+0] / 16;
buffer[i*4+1] = sumBuffer[i*4+1] / 16;
buffer[i*4+2] = sumBuffer[i*4+2] / 16;
buffer[i*4+3] = sumBuffer[i*4+3] / 16;
}
filename = source;
filename.StripFileExtension();
filename.Append( "_local.tga" );
common->Printf( "writing %s (%i,%i)\n", filename.c_str(), width, height );
R_VerticalFlip( buffer, width, height );
R_WriteTGA( filename, buffer, width, height );
// free the model
renderModelManager->FreeModel( highPolyModel );
// free our work buffer
Mem_Free( buffer );
Mem_Free( sumBuffer );
Mem_Free( colorSumBuffer );
RestoreWindow();
// stop updating the screen as we print
common->SetRefreshOnPrint( false );
common->Error( "Completed." );
}
