void WaterSurface::showTextures()
{
show_texture(cb_refl_ID, 0,0,200,200);
show_texture(db_refl_ID, 200,0,200,200);
show_texture(cb_refr_ID, 400,0,200,200);
show_texture(db_refr_ID, 600,0,200,200);
}
void GodRays::end()
{
// kreslit zas do standardniho zadniho bufferu
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
glDrawBuffer(GL_BACK);
// viewport zpátky
glViewport(0,0,g_WinWidth, g_WinHeight);
v4 lposScreen = glCoordToScreenSpace(v4( light->positionFixedToSkybox.x,
light->positionFixedToSkybox.y,
light->positionFixedToSkybox.z,
1.0)
);
//printf("x=%f, y=%f \n", lposScreen.x, lposScreen.y);
// blend textures and draw them
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0, g_WinWidth, 0, g_WinHeight, -1,1);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glTranslatef(0.0, -.1, 0.0),
glDisable(GL_LIGHTING);
glDisable(GL_DEPTH_TEST);
glEnable(GL_TEXTURE_2D);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, originalColor);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, forRaysColor);
glColor4f(1.f,1.f,1.f,1.f);
shader->use(true);
shader->setUniform1i(originalColorLocation, 0);
shader->setUniform1i(forRaysColorLocation, 1);
shader->setUniform2f(lightPosLocation, lposScreen.x,lposScreen.y );
shader->setUniform1f(lightDOTviewLocation, lightDirDOTviewDirValue);
glBegin(GL_QUADS);
glTexCoord2f(0.f, 0.f); glVertex2i(0,0);
glTexCoord2f(1.f, 0.f); glVertex2i(0+g_WinWidth,0);
glTexCoord2f(1.f, 1.f); glVertex2i(0+g_WinWidth,0+g_WinHeight);
glTexCoord2f(0.f, 1.f); glVertex2i(0,0+g_WinHeight);
glEnd();
shader->use(false);
glEnable(GL_LIGHTING);
glEnable(GL_DEPTH_TEST);
glDisable(GL_TEXTURE_2D);
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glActiveTexture(GL_TEXTURE0);
#if TEST
// show godrays textures
show_texture(originalColor, 400, 0, 200, 200);
show_texture(originalDepth, 200, 0, 200, 200);
show_texture(forRaysColor, 0, 0, 200, 200);
#endif
}
void World::show_textures(){
show_texture(cb_LOD_ID, 0,400,200,200);
}
int main(int argc, char *argv[])
{
FILE *fp;
int curritem = 0, numitems, i;
unsigned short mask = 0xFFFF;
char ch = '\0';
int done = 0,
wind = 0, /* not as in air */
mode = 0,
refresh = 1;
struct gfx_modes_struct { int w,h; } gfx_modes[NUM_MODES] =
{ {640, 480}, {800, 600}, {1024, 768} };
if (argc != 0)
{
if ( (strchr(argv[1], '?') != NULL) ||
(strchr(argv[1], 'h') != NULL) ||
(strchr(argv[1], 'H') != NULL) )
{
fprintf(stderr, "usage: %s [gfx-mode-id]\n", argv[0]);
fprintf(stderr, "gfx-mode-id is one of:\n");
for (i=0; i<NUM_MODES; i++)
fprintf(stderr, " %i => %ix%ix16 %s\n",
i, gfx_modes[i].w, gfx_modes[i].h,
(i == 0) ? "(default)" : "");
exit(-1);
}
mode = atoi(argv[1]);
if ((mode < 0) || (mode >= NUM_MODES))
mode = 0;
}
fp = flxx_open(BITMAP_NAME);
if (fp == NULL)
exit_err("error opening %s\n", BITMAP_NAME);
numitems = flxx_numitems(fp);
allegro_init();
set_color_depth(16);
if (set_gfx_mode(GFX_AUTODETECT, gfx_modes[mode].w, gfx_modes[mode].h,
0, 0) < 0)
exit_err("error initialising graphics:\n %s\n", allegro_error);
while (flxx_getitem(fp, curritem) <= 0)
{
curritem++;
if (curritem > numitems)
exit_err("no non-zero items found!!\n", "");
}
while (!done)
{
if (refresh)
{
clear(screen);
show_texture(fp, curritem, mask, 0);
textprintf(screen, font, 10, SCREEN_H - 20, 0xFFFF,
"img %i/%i | mask 0x%X", curritem, numitems-1, mask);
refresh = 0;
}
ch = toupper(getch());
switch (ch)
{
case 0x1B: done = 1;
break;
case 'V': wind = 1; break;
case 'F': wind = -1; break;
case 'C': wind = 10; break;
case 'D': wind = -10; break;
case 'X': wind = 100; break;
case 'S': wind = -100; break;
case 'Z': wind = 1000; break;
case 'A': wind = -1000; break;
case 0x0D: clear(screen);
show_texture(fp, curritem, mask, 1);
textprintf(screen, font, 10, SCREEN_H - 20, 0xFFFF,
"dumped.");
break;
case ' ': mask ^= 0x8400; /* flip b/w 0xffff and 0x7bff */
refresh = 1;
break;
}
if (wind != 0)
{
curritem += wind;
if (curritem < 0)
curritem += numitems;
if (curritem >= numitems)
curritem -= numitems;
while (flxx_getitem(fp, curritem) <= 0)
{
if (wind < 0)
curritem--;
else
curritem++;
if (curritem < 0)
curritem = numitems - 1;
if (curritem >= numitems)
curritem = 0;
}
wind = 0;
refresh = 1;
}
}
fclose(fp);
return 0;
}
