void init(float winwidth, float winheight, float pixratio)
{
const Vector4 bgcolor = {0.937, 0.937, 0.93, 1.00};
parg_state_clearcolor(bgcolor);
parg_state_cullfaces(1);
parg_state_depthtest(1);
parg_shader_load_from_asset(SHADER_SIMPLE);
int* rawdata;
colorbuf = parg_buffer_slurp_asset(TEXTURE_COLOR, (void*) &rawdata);
int width = *rawdata++;
int height = *rawdata++;
int ncomps = *rawdata++;
parg_buffer_unlock(colorbuf);
colortex =
parg_texture_from_u8(colorbuf, width, height, ncomps, 3 * sizeof(int));
graybuf = parg_buffer_from_asset(BIN_ISLAND);
graytex = parg_texture_from_fp32(graybuf, IMGWIDTH, IMGHEIGHT, 1, 0);
const float h = 1.5f;
const float w = h * winwidth / winheight;
const float znear = 10;
const float zfar = 90;
projection = M4MakeFrustum(-w, w, -h, h, znear, zfar);
Point3 eye = {0, -50, 50};
Point3 target = {0, 0, 0};
Vector3 up = {0, 1, 0};
view = M4MakeLookAt(eye, target, up);
rectmesh = parg_mesh_rectangle(20, 20);
}
parg_mesh* parg_mesh_from_asset(parg_token id)
{
parg_mesh* surf = calloc(sizeof(struct parg_mesh_s), 1);
int* rawdata;
parg_buffer* objbuf = parg_buffer_slurp_asset(id, (void*) &rawdata);
parg_load_obj(surf, objbuf);
parg_buffer_free(objbuf);
return surf;
}
void init(float winwidth, float winheight, float pixratio)
{
printf(
"Spacebar to toggle texture modes.\n"
"D to toggle auto-zooming demo mode.\n"
"G to toggle the slippy map grid.\n");
parg_state_clearcolor((Vector4){0.43, 0.61, 0.8, 1});
parg_state_cullfaces(1);
parg_state_depthtest(0);
parg_shader_load_from_asset(SHADER_DEFAULT);
parg_zcam_init(1, 1, fovy);
parg_zcam_set_position(0, 0, STARTZ);
ocean_texture = parg_texture_from_asset(TEXTURE_OCEAN);
paper_texture = parg_texture_from_asset(TEXTURE_PAPER);
// Decode the europe image.
int* rawdata;
parg_buffer* colorbuf =
parg_buffer_slurp_asset(TEXTURE_EUROPE, (void*) &rawdata);
int width = *rawdata++;
int height = *rawdata++;
int ncomps = *rawdata++;
parg_texture_fliprows(rawdata, width * ncomps, height);
// Sample the ocean color from one corner of the image.
int ocean_color = rawdata[0];
// Perform marching squares and generate a mesh.
par_msquares_meshlist* mlist =
par_msquares_color((parg_byte*) rawdata, width, height, 16, ocean_color,
4, PAR_MSQUARES_SWIZZLE | PAR_MSQUARES_DUAL | PAR_MSQUARES_HEIGHTS |
PAR_MSQUARES_SIMPLIFY);
par_msquares_mesh const* mesh;
mesh = par_msquares_get_mesh(mlist, 0);
landmass_mesh = parg_mesh_create(
mesh->points, mesh->npoints, mesh->triangles, mesh->ntriangles);
mesh = par_msquares_get_mesh(mlist, 1);
ocean_mesh = parg_mesh_create(
mesh->points, mesh->npoints, mesh->triangles, mesh->ntriangles);
parg_buffer_unlock(colorbuf);
par_msquares_free(mlist);
}
