mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2024-11-15 15:03:51 +01:00
92 lines
2.7 KiB
Plaintext
92 lines
2.7 KiB
Plaintext
function Node_3D_Displace(_x, _y, _group = noone) : Node_3D_Modifier(_x, _y, _group) constructor {
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name = "Displace vertex";
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newInput(in_mesh + 0, nodeValue_D3Material("Displace Texture", self, new __d3dMaterial()))
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.setVisible(true, true);
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newInput(in_mesh + 1, nodeValue_Float("Height", self, .1));
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newInput(in_mesh + 2, nodeValue_Float("Subobjects", self, -1));
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newInput(in_mesh + 3, nodeValue_Bool("Recalculate normal", self, true));
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input_display_list = [
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["Mesh", false], 0, in_mesh + 2,
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["Displace", false], in_mesh + 0, in_mesh + 1, in_mesh + 3
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];
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static processData = function(_output, _data, _output_index, _array_index = 0) {
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var _obj = _data[0];
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var _tex = _data[in_mesh + 0];
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var _hei = _data[in_mesh + 1];
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var _trg = _data[in_mesh + 2];
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var _nrm = _data[in_mesh + 3];
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if(!is_instanceof(_obj, __3dObject)) return noone;
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if(!is_instanceof(_tex, __d3dMaterial)) return noone;
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var _tsc = _tex.texScale;
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var _tif = _tex.texShift;
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var _surf = _tex.surface;
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if(!is_surface(_surf)) return _obj;
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var dim = surface_get_dimension(_tex.surface);
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var _sw = dim[0] - 1;
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var _sh = dim[1] - 1;
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var buf = buffer_from_surface(_tex.surface, false);
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var _res = _obj.clone();
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var _vlen = array_length(_res.vertex);
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var _tarr = _trg == -1? array_create_ext(_vlen, function(i) /*=>*/ {return i}) : [ clamp(_trg, 0, _vlen - 1) ];
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for( var i = 0, n = array_length(_tarr); i < n; i++ ) {
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var _vi = _tarr[i];
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var _vt = _res.vertex[_vi];
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for( var j = 0, m = array_length(_vt); j < m; j++ ) {
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var _v = _vt[j];
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var _vu = frac(clamp(_v.u, 0, 0.9999) * _tsc[0] + _tif[0]);
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var _vv = frac(clamp(_v.v, 0, 0.9999) * _tsc[1] + _tif[1]);
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if(_vu < 0) _vu = 1 + _vu;
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if(_vv < 0) _vv = 1 + _vv;
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_vu = round(_vu * _sw);
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_vv = round(_vv * _sh);
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var _samp = buffer_getPixel(buf, dim[0], dim[1], _vu, _vv);
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var _hh = _hei * _color_get_light(_samp);
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_v.x += _v.nx * _hh;
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_v.y += _v.ny * _hh;
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_v.z += _v.nz * _hh;
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}
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if(_nrm)
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for( var j = 0, m = array_length(_vt); j < m; j += 3 ) {
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var _v0 = _vt[j + 0];
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var _v1 = _vt[j + 1];
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var _v2 = _vt[j + 2];
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var _nres = d3_cross_product_element(_v1.x - _v0.x, _v1.y - _v0.y, _v1.z - _v0.z,
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_v0.x - _v2.x, _v0.y - _v2.y, _v0.z - _v2.z);
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var _nnl = sqrt(_nres[0] * _nres[0] + _nres[1] * _nres[1] + _nres[2] * _nres[2]);
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_nres[0] /= _nnl;
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_nres[1] /= _nnl;
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_nres[2] /= _nnl;
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_v0.nx = _nres[0]; _v0.ny = _nres[1]; _v0.nz = _nres[2];
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_v1.nx = _nres[0]; _v1.ny = _nres[1]; _v1.nz = _nres[2];
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_v2.nx = _nres[0]; _v2.ny = _nres[1]; _v2.nz = _nres[2];
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}
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}
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_res.VB = _res.build();
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buffer_delete(buf);
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return _res;
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}
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} |