void drawSkybox(int grid_size) {
/*
matrices are:
projection: perspective projection
modelview: identity
*/
/* these are the values for y == up, x == front */
/*
float sides[6][4][3] = {
{ { 1, -1, -1 }, { 1, -1, 1 }, { 1, 1, 1 }, { 1, 1, -1 } }, // front
{ { 1, 1, -1 }, { 1, 1, 1 }, { -1, 1, 1 }, { -1, 1, -1 } }, // top
{ { -1, -1, -1 }, { 1, -1, -1 }, { 1, 1, -1 }, { -1, 1, -1 } }, // left
{ { 1, -1, 1 }, { -1, -1, 1 }, { -1, 1, 1 }, { 1, 1, 1 } }, // right
{ { -1, -1, -1 }, { 1, -1, -1 }, { 1, -1, 1 }, { -1, -1, 1 } }, // bottom
{ { -1, -1, 1 }, { -1, -1, -1 }, { -1, 1, -1 }, { -1, 1, a1 } } // back
};
*/
/* these values are for z == up, x == front */
float sides[6][4][3] = {
{ { 1, 1, -1 }, { 1, -1, -1 }, { 1, -1, 1 }, { 1, 1, 1 } }, /* front */
{ { 1, 1, 1 }, { -1, 1, 1 }, { -1, -1, 1 }, { 1, -1, 1 } }, /* top */
{ { -1, 1, -1 }, { 1, 1, -1 }, { 1, 1, 1 }, { -1, 1, 1 } }, /* left */
{ { 1, -1, -1 }, { -1, -1, -1 }, { -1, -1, 1 }, { 1, -1, 1 } }, /* right */
{ { -1, 1, -1 }, { -1, -1, -1 }, { 1, -1, -1 }, { 1, 1, -1 } }, /* bottom */
{ { -1, -1, -1 }, { -1, 1, -1 }, { -1, 1, 1 }, { -1, -1, 1 } } /* back */
};
float uv[4][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } };
int i, j;
float d = grid_size * 3;
gl2gles_vertex3v verts[6];
gl2gles_vertex2v texts[6];
glEnable(GL_TEXTURE_2D);
glDepthMask(GL_FALSE);
//TODO:DONE REdo for gles
/*glColor3f(1.0, 1.0, 1.0);
for(i = 0; i < 6; i++) {
bindSkyboxTexture(i);
glBegin(GL_QUADS);
for(j = 0; j < 4; j++) {
glTexCoord2fv( uv[j] );
glVertex3f( sides[i][j][0] * d, sides[i][j][1] * d, sides[i][j][2] * d );
}
glEnd();
}*/
glEnableClientState (GL_TEXTURE_COORD_ARRAY);
glDisableClientState (GL_NORMAL_ARRAY);
glEnableClientState (GL_VERTEX_ARRAY);
glDisableClientState (GL_COLOR_ARRAY);
glColor3f(1.0, 1.0, 1.0);
for(i = 0; i < 6; i++) {
bindSkyboxTexture(i);
//glBegin(GL_QUADS);
/*for(j = 0; j < 4; j++) {
glTexCoord2fv( uv[j] );
glVertex3f( sides[i][j][0] * d, sides[i][j][1] * d, sides[i][j][2] * d );
}*/
FillVertex2v(texts[0],uv[0][0],uv[0][1]);
FillVertex3v(verts[0],sides[i][0][0] * d, sides[i][0][1] * d, sides[i][0][2] * d);
FillVertex2v(texts[1],uv[1][0],uv[1][1]);
FillVertex3v(verts[1],sides[i][1][0] * d, sides[i][1][1] * d, sides[i][1][2] * d);
FillVertex2v(texts[2],uv[2][0],uv[2][1]);
FillVertex3v(verts[2],sides[i][2][0] * d, sides[i][2][1] * d, sides[i][2][2] * d);
FillVertex2v(texts[3],uv[2][0],uv[2][1]);
FillVertex3v(verts[3],sides[i][2][0] * d, sides[i][2][1] * d, sides[i][2][2] * d);
FillVertex2v(texts[4],uv[3][0],uv[3][1]);
FillVertex3v(verts[4],sides[i][3][0] * d, sides[i][3][1] * d, sides[i][3][2] * d);
FillVertex2v(texts[5],uv[0][0],uv[0][1]);
FillVertex3v(verts[5],sides[i][0][0] * d, sides[i][0][1] * d, sides[i][0][2] * d);
glVertexPointer (3,GL_FLOAT,0,verts);
glTexCoordPointer (2,GL_FLOAT,0,texts);
glDrawArrays( GL_TRIANGLES , 0, 6 );
//glEnd();
}
glDisable(GL_TEXTURE_2D);
glDepthMask(GL_TRUE);
}
void drawSkybox(float d) {
/* these are the values for y == up, x == front */
/*
float sides[6][4][3] = {
{ { 1, -1, -1 }, { 1, -1, 1 }, { 1, 1, 1 }, { 1, 1, -1 } }, // front
{ { 1, 1, -1 }, { 1, 1, 1 }, { -1, 1, 1 }, { -1, 1, -1 } }, // top
{ { -1, -1, -1 }, { 1, -1, -1 }, { 1, 1, -1 }, { -1, 1, -1 } }, // left
{ { 1, -1, 1 }, { -1, -1, 1 }, { -1, 1, 1 }, { 1, 1, 1 } }, // right
{ { -1, -1, -1 }, { 1, -1, -1 }, { 1, -1, 1 }, { -1, -1, 1 } }, // bottom
{ { -1, -1, 1 }, { -1, -1, -1 }, { -1, 1, -1 }, { -1, 1, a1 } } // back
};
*/
/* these values are for z == up, x == front */
float sides[6][12] = {
{ 1, 1, -1,
1, -1, -1,
1, 1, 1,
1, -1, 1 }, /* front */
{ 1, 1, 1,
-1, 1, 1,
1, -1, 1,
-1, -1, 1 }, /* top */
{ -1, 1, -1,
1, 1, -1,
-1, 1, 1,
1, 1, 1 }, /* left */
{ 1, -1, -1,
-1, -1, -1,
1, -1, 1,
-1, -1, 1 }, /* right */
{ -1, 1, -1,
-1, -1, -1,
1, 1, -1,
1, -1, -1 }, /* bottom */
{ -1, -1, -1,
-1, 1, -1,
-1, -1, 1,
-1, 1, 1 } /* back */
};
float uv[4][2] = { 0, 0, 1, 0, 0, 1, 1, 1 };
int i;
if (!gSettingsCache.show_skybox)
return;
glEnable(GL_TEXTURE_2D);
glColor4f(1.0, 1.0, 1.0, 1.0f);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(2, GL_FLOAT, 0, uv);
glPushMatrix();
glScalef(d, d, d);
for(i = 0; i < 6; i++) {
bindSkyboxTexture(i);
glVertexPointer(3, GL_FLOAT, 0, sides[i]);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
}
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
glDisable(GL_TEXTURE_2D);
glPopMatrix();
}
