Pixel-Composer/scripts/node_channels/node_channels.gml
2023-02-14 11:32:32 +07:00

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function Node_RGB_Channel(_x, _y, _group = -1) : Node_Processor(_x, _y, _group) constructor {
name = "RGBA Extract";
inputs[| 0] = nodeValue("Surface in", self, JUNCTION_CONNECT.input, VALUE_TYPE.surface, 0);
inputs[| 1] = nodeValue("Output type", self, JUNCTION_CONNECT.input, VALUE_TYPE.integer, 0)
.setDisplay(VALUE_DISPLAY.enum_scroll, ["Channel value", "Greyscale"]);
outputs[| 0] = nodeValue("Red", self, JUNCTION_CONNECT.output, VALUE_TYPE.surface, noone);
outputs[| 1] = nodeValue("Green", self, JUNCTION_CONNECT.output, VALUE_TYPE.surface, noone);
outputs[| 2] = nodeValue("Blue", self, JUNCTION_CONNECT.output, VALUE_TYPE.surface, noone);
outputs[| 3] = nodeValue("Alpha", self, JUNCTION_CONNECT.output, VALUE_TYPE.surface, noone);
static process_data = function(_outSurf, _data, output_index) {
var _out = _data[1];
surface_set_target(_outSurf);
draw_clear_alpha(0, 0);
BLEND_OVERRIDE;
switch(output_index) {
case 0 : shader_set(_out? sh_channel_R_grey : sh_channel_R); break;
case 1 : shader_set(_out? sh_channel_G_grey : sh_channel_G); break;
case 2 : shader_set(_out? sh_channel_B_grey : sh_channel_B); break;
case 3 : shader_set(sh_channel_A); break;
}
draw_surface_safe(_data[0], 0, 0);
shader_reset();
BLEND_NORMAL;
surface_reset_target();
return _outSurf;
}
}