Pixel-Composer/scripts/d3d_surface_extrude/d3d_surface_extrude.gml

188 lines
6.7 KiB
Plaintext
Raw Normal View History

function __3dSurfaceExtrude(surface = noone, height = noone, smooth = false) : __3dObject() constructor {
VF = global.VF_POS_NORM_TEX_COL;
render_type = pr_trianglelist;
self.surface = surface;
self.height = height;
self.smooth = smooth;
surface_w = 1;
surface_h = 1;
normal_draw_size = 0.05;
static getHeight = function(h, gw, gh, i, j) {
gml_pragma("forceinline");
var _i = round(i * gw);
var _j = round(j * gh);
_i = clamp(_i, 0, array_length(h) - 1);
_j = clamp(_j, 0, array_length(h[_i]) - 1);
return h[_i][_j];
}
2023-09-17 13:23:24 +02:00
static initModel = function() {
if(!is_surface(surface)) return;
var _surface = surface;
var _height = height;
2023-09-08 21:37:36 +02:00
var ww = surface_get_width_safe(_surface);
var hh = surface_get_height_safe(_surface);
surface_w = ww;
surface_h = hh;
2023-10-08 04:14:35 +02:00
var ap = ww / hh;
var tw = ap / ww;
var th = 1 / hh;
var sw = -ap / 2;
var sh = 0.5;
var useH = is_surface(_height);
2023-10-08 04:14:35 +02:00
var fw = 1 / ww;
var fh = 1 / hh;
#region ---- data prepare ----
if(smooth) {
var ts = surface_create(ww, hh);
surface_set_shader(ts, sh_3d_extrude_filler);
shader_set_f("dimension", ww, hh);
draw_surface(_surface, 0, 0);
surface_reset_shader();
_surface = ts;
if(useH) {
var ds = surface_create(ww, hh);
surface_set_shader(ds, sh_3d_extrude_filler_depth);
shader_set_f("dimension", ww, hh);
draw_surface(_height, 0, 0);
surface_reset_shader();
_height = ds;
}
}
if(useH) {
2023-09-08 21:37:36 +02:00
var hgw = surface_get_width_safe(_height);
var hgh = surface_get_height_safe(_height);
var hgtW = hgw / ww;
var hgtH = hgh / hh;
var height_buffer = buffer_create(hgw * hgh * 4, buffer_fixed, 2);
buffer_get_surface(height_buffer, _height, 0);
buffer_seek(height_buffer, buffer_seek_start, 0);
var hei = array_create(hgw, hgh);
for( var j = 0; j < hgh; j++ )
for( var i = 0; i < hgw; i++ ) {
var cc = buffer_read(height_buffer, buffer_u32);
var _b = colorBrightness(cc & ~0b11111111);
hei[i][j] = _b;
}
buffer_delete(height_buffer);
}
var surface_buffer = buffer_create(ww * hh * 4, buffer_fixed, 2);
buffer_get_surface(surface_buffer, _surface, 0);
buffer_seek(surface_buffer, buffer_seek_start, 0);
var v = ds_list_create();
var ap = array_create(ww, hh);
for( var j = 0; j < hh; j++ )
for( var i = 0; i < ww; i++ ) {
var cc = buffer_read(surface_buffer, buffer_u32);
var _a = (cc & (0b11111111 << 24)) >> 24;
ap[i][j] = _a;
}
buffer_delete(surface_buffer);
#endregion
for( var i = 0; i < ww; i++ )
for( var j = 0; j < hh; j++ ) {
if(!smooth && ap[i][j] == 0) continue;
var i0 = sw + i * tw;
2023-10-08 04:14:35 +02:00
var j0 = sh - j * th;
var i1 = i0 + tw;
2023-10-08 04:14:35 +02:00
var j1 = j0 - th;
2023-10-08 04:14:35 +02:00
var tx0 = fw * i, tx1 = tx0 + fw;
var ty0 = fh * j, ty1 = ty0 + fh;
var dep = (useH? getHeight(hei, hgtW, hgtH, i, j) : 1) * 0.5;
2023-09-17 13:23:24 +02:00
ds_list_add(v, new __vertex(i1, j0, -dep).setNormal(0, 0, -1).setUV(tx1, ty0));
ds_list_add(v, new __vertex(i0, j0, -dep).setNormal(0, 0, -1).setUV(tx0, ty0));
ds_list_add(v, new __vertex(i1, j1, -dep).setNormal(0, 0, -1).setUV(tx1, ty1));
2023-09-17 13:23:24 +02:00
ds_list_add(v, new __vertex(i1, j1, -dep).setNormal(0, 0, -1).setUV(tx1, ty1));
ds_list_add(v, new __vertex(i0, j0, -dep).setNormal(0, 0, -1).setUV(tx0, ty0));
ds_list_add(v, new __vertex(i0, j1, -dep).setNormal(0, 0, -1).setUV(tx0, ty1));
2023-09-17 13:23:24 +02:00
ds_list_add(v, new __vertex(i1, j0, dep).setNormal(0, 0, 1).setUV(tx1, ty0));
ds_list_add(v, new __vertex(i1, j1, dep).setNormal(0, 0, 1).setUV(tx1, ty1));
ds_list_add(v, new __vertex(i0, j0, dep).setNormal(0, 0, 1).setUV(tx0, ty0));
2023-09-17 13:23:24 +02:00
ds_list_add(v, new __vertex(i1, j1, dep).setNormal(0, 0, 1).setUV(tx1, ty1));
ds_list_add(v, new __vertex(i0, j1, dep).setNormal(0, 0, 1).setUV(tx0, ty1));
ds_list_add(v, new __vertex(i0, j0, dep).setNormal(0, 0, 1).setUV(tx0, ty0));
2023-09-17 13:23:24 +02:00
if((useH && dep * 2 > getHeight(hei, hgtW, hgtH, i, j - 1)) || (j == 0 || ap[i][j - 1] == 0)) { //y side
ds_list_add(v, new __vertex(i0, j0, dep).setNormal(0, 1, 0).setUV(tx1, ty0));
ds_list_add(v, new __vertex(i0, j0, -dep).setNormal(0, 1, 0).setUV(tx0, ty0));
ds_list_add(v, new __vertex(i1, j0, dep).setNormal(0, 1, 0).setUV(tx1, ty1));
2023-09-17 13:23:24 +02:00
ds_list_add(v, new __vertex(i0, j0, -dep).setNormal(0, 1, 0).setUV(tx1, ty1));
ds_list_add(v, new __vertex(i1, j0, -dep).setNormal(0, 1, 0).setUV(tx0, ty0));
ds_list_add(v, new __vertex(i1, j0, dep).setNormal(0, 1, 0).setUV(tx0, ty1));
}
2023-09-17 13:23:24 +02:00
if((useH && dep * 2 > getHeight(hei, hgtW, hgtH, i, j + 1)) || (j == hh - 1 || ap[i][j + 1] == 0)) { //y side
ds_list_add(v, new __vertex(i0, j1, dep).setNormal(0, -1, 0).setUV(tx1, ty0));
ds_list_add(v, new __vertex(i1, j1, dep).setNormal(0, -1, 0).setUV(tx1, ty1));
ds_list_add(v, new __vertex(i0, j1, -dep).setNormal(0, -1, 0).setUV(tx0, ty0));
2023-09-17 13:23:24 +02:00
ds_list_add(v, new __vertex(i0, j1, -dep).setNormal(0, -1, 0).setUV(tx1, ty1));
ds_list_add(v, new __vertex(i1, j1, dep).setNormal(0, -1, 0).setUV(tx0, ty1));
ds_list_add(v, new __vertex(i1, j1, -dep).setNormal(0, -1, 0).setUV(tx0, ty0));
}
2023-09-17 13:23:24 +02:00
if((useH && dep * 2 > getHeight(hei, hgtW, hgtH, i - 1, j)) || (i == 0 || ap[i - 1][j] == 0)) { //x side
ds_list_add(v, new __vertex(i0, j0, dep).setNormal(-1, 0, 0).setUV(tx1, ty0));
ds_list_add(v, new __vertex(i0, j1, dep).setNormal(-1, 0, 0).setUV(tx1, ty1));
ds_list_add(v, new __vertex(i0, j0, -dep).setNormal(-1, 0, 0).setUV(tx0, ty0));
2023-09-17 13:23:24 +02:00
ds_list_add(v, new __vertex(i0, j0, -dep).setNormal(-1, 0, 0).setUV(tx1, ty1));
ds_list_add(v, new __vertex(i0, j1, dep).setNormal(-1, 0, 0).setUV(tx0, ty1));
ds_list_add(v, new __vertex(i0, j1, -dep).setNormal(-1, 0, 0).setUV(tx0, ty0));
}
2023-09-17 13:23:24 +02:00
if((useH && dep * 2 > getHeight(hei, hgtW, hgtH, i + 1, j)) || (i == ww - 1 || ap[i + 1][j] == 0)) { //x side
ds_list_add(v, new __vertex(i1, j0, dep).setNormal(1, 0, 0).setUV(tx1, ty0));
ds_list_add(v, new __vertex(i1, j0, -dep).setNormal(1, 0, 0).setUV(tx0, ty0));
ds_list_add(v, new __vertex(i1, j1, dep).setNormal(1, 0, 0).setUV(tx1, ty1));
2023-09-17 13:23:24 +02:00
ds_list_add(v, new __vertex(i1, j0, -dep).setNormal(1, 0, 0).setUV(tx1, ty1));
ds_list_add(v, new __vertex(i1, j1, -dep).setNormal(1, 0, 0).setUV(tx0, ty0));
ds_list_add(v, new __vertex(i1, j1, dep).setNormal(1, 0, 0).setUV(tx0, ty1));
}
}
if(smooth) {
surface_free(_surface);
if(useH) surface_free(_height);
}
vertex = [ ds_list_to_array(v) ];
ds_list_destroy(v);
VB = build();
} initModel();
static onParameterUpdate = initModel;
}