Pixel-Composer/scripts/node_diffuse/node_diffuse.gml
2024-03-14 20:35:19 +07:00

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function Node_Diffuse(_x, _y, _group = noone) : Node(_x, _y, _group) constructor {
name = "Diffuse";
inputs[| 0] = nodeValue("Density field", self, JUNCTION_CONNECT.input, VALUE_TYPE.surface, noone );
inputs[| 1] = nodeValue("Dissipation", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, 0.05)
.setDisplay(VALUE_DISPLAY.slider, { range: [ -0.2, 0.2, 0.001] });
inputs[| 2] = nodeValue("Scale", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, 4)
inputs[| 3] = nodeValue("Randomness", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, 100)
inputs[| 4] = nodeValue("Flow rate", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, 0.1)
.setDisplay(VALUE_DISPLAY.slider, { range: [ 0, 0.2, 0.001] });
inputs[| 5] = nodeValue("Thershold", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, [ 0.5, 0.7 ])
.setDisplay(VALUE_DISPLAY.slider_range);
inputs[| 6] = nodeValue("Seed", self, JUNCTION_CONNECT.input, VALUE_TYPE.integer, seed_random())
inputs[| 7] = nodeValue("External", self, JUNCTION_CONNECT.input, VALUE_TYPE.surface, noone );
inputs[| 8] = nodeValue("External strength", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, 0.3)
.setDisplay(VALUE_DISPLAY.slider, { range: [ -1, 1, 0.01] });
inputs[| 9] = nodeValue("Detail", self, JUNCTION_CONNECT.input, VALUE_TYPE.integer, 1)
outputs[| 0] = nodeValue("Result", self, JUNCTION_CONNECT.output, VALUE_TYPE.surface, noone);
input_display_list = [ 0, 6,
["Diffuse", false], 1,
["Flow", false], 2, 9, 3, 4,
["Forces", false], 8,
["Rendering", false], 5,
]
temp_surface = [ surface_create(1, 1), surface_create(1, 1), surface_create(1, 1) ];
bufferStore.velocity = buffer_create(1, buffer_grow, 4);
static drawOverlay = function(hover, active, _x, _y, _s, _mx, _my, _snx, _sny) { #region
var _surf = getInputData(0);
var _sw = surface_get_width_safe(_surf);
var _sh = surface_get_height_safe(_surf);
if(!surface_valid(temp_surface[2], _sw, _sh)) return;
} #endregion
static update = function() {
var _surf = getInputData(0);
var _diss = getInputData(1);
var _scal = getInputData(2);
var _rand = getInputData(3);
var _flow = getInputData(4);
var _thre = getInputData(5);
var _seed = getInputData(6);
var _fstr = getInputData(8);
var _detl = getInputData(9);
if(!is_surface(_surf)) return;
var _sw = surface_get_width_safe(_surf);
var _sh = surface_get_height_safe(_surf);
var _outSurf = outputs[| 0].getValue();
_outSurf = surface_verify(_outSurf, _sw, _sh);
temp_surface[0] = surface_verify(temp_surface[0], _sw, _sh);
temp_surface[1] = surface_verify(temp_surface[1], _sw, _sh);
surface_set_shader(temp_surface[0], sh_diffuse_dissipate);
shader_set_f("dimension", _sw, _sh);
shader_set_f("dissipation", 1 - _diss);
draw_surface_safe(_surf);
surface_reset_shader();
#region velocity
temp_surface[2] = surface_from_buffer(bufferStore.velocity);
if(!surface_valid(temp_surface[2], _sw, _sh, surface_rgba16float)) {
surface_free(temp_surface[2]);
temp_surface[2] = surface_create(_sw, _sh, surface_rgba16float);
surface_clear(temp_surface[2]);
bufferStore.velocity = buffer_from_surface(temp_surface[2]);
}
surface_set_shader(temp_surface[2], sh_vector_diverge,, BLEND.add);
draw_sprite_stretched(s_fx_pixel, 0, 0, 0, _sw, _sh);
surface_reset_shader();
#endregion
surface_set_shader(temp_surface[1], sh_diffuse_flow);
shader_set_f("dimension", _sw, _sh);
shader_set_f("scale", _scal);
shader_set_i("detail", _detl);
shader_set_f("flowRate", _flow);
shader_set_f("seed", _seed + CURRENT_FRAME / _rand);
shader_set_i("useExternal", is_surface(temp_surface[2]));
shader_set_f("externalStrength", _fstr);
shader_set_surface("externalForce", temp_surface[2]);
draw_surface_safe(temp_surface[0]);
surface_reset_shader();
surface_set_shader(_outSurf, sh_diffuse_post);
shader_set_f("dimension", _sw, _sh);
shader_set_f("threshold", _thre);
draw_surface_safe(temp_surface[1]);
surface_reset_shader();
outputs[| 0].setValue(_outSurf);
}
}