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Added 'fma' function to shader language

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This commit is contained in:
Yuri Roubinsky
2020-02-14 23:09:53 +03:00
parent 70e21154f0
commit ecb5f7ea23
8 changed files with 199 additions and 0 deletions
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93
scene/resources/visual_shader_nodes.cpp
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@@ -4794,3 +4794,96 @@ VisualShaderNodeCompare::VisualShaderNodeCompare() {
set_input_port_default_value(1, 0.0);
set_input_port_default_value(2, CMP_EPSILON);
}
////////////// Fma
String VisualShaderNodeMultiplyAdd::get_caption() const {
return "MultiplyAdd";
}
int VisualShaderNodeMultiplyAdd::get_input_port_count() const {
return 3;
}
VisualShaderNodeMultiplyAdd::PortType VisualShaderNodeMultiplyAdd::get_input_port_type(int p_port) const {
if (type == TYPE_SCALAR) {
return PORT_TYPE_SCALAR;
}
return PORT_TYPE_VECTOR;
}
String VisualShaderNodeMultiplyAdd::get_input_port_name(int p_port) const {
if (p_port == 0) {
return "a";
} else if (p_port == 1) {
return "b(*)";
} else if (p_port == 2) {
return "c(+)";
}
return "";
}
int VisualShaderNodeMultiplyAdd::get_output_port_count() const {
return 1;
}
VisualShaderNodeMultiplyAdd::PortType VisualShaderNodeMultiplyAdd::get_output_port_type(int p_port) const {
if (type == TYPE_SCALAR) {
return PORT_TYPE_SCALAR;
} else {
return PORT_TYPE_VECTOR;
}
}
String VisualShaderNodeMultiplyAdd::get_output_port_name(int p_port) const {
return "";
}
String VisualShaderNodeMultiplyAdd::generate_code(Shader::Mode p_mode, VisualShader::Type p_type, int p_id, const String *p_input_vars, const String *p_output_vars, bool p_for_preview) const {
return "\t" + p_output_vars[0] + " = fma(" + p_input_vars[0] + ", " + p_input_vars[1] + ", " + p_input_vars[2] + ");\n";
}
void VisualShaderNodeMultiplyAdd::set_type(Type p_type) {
ERR_FAIL_INDEX((int)p_type, TYPE_MAX);
if (p_type != type) {
if (p_type == TYPE_SCALAR) {
set_input_port_default_value(0, 0.0);
set_input_port_default_value(1, 0.0);
set_input_port_default_value(2, 0.0);
} else {
set_input_port_default_value(0, Vector3(0.0, 0.0, 0.0));
set_input_port_default_value(1, Vector3(0.0, 0.0, 0.0));
set_input_port_default_value(2, Vector3(0.0, 0.0, 0.0));
}
}
type = p_type;
emit_changed();
}
VisualShaderNodeMultiplyAdd::Type VisualShaderNodeMultiplyAdd::get_type() const {
return type;
}
Vector<StringName> VisualShaderNodeMultiplyAdd::get_editable_properties() const {
Vector<StringName> props;
props.push_back("type");
return props;
}
void VisualShaderNodeMultiplyAdd::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_type", "type"), &VisualShaderNodeMultiplyAdd::set_type);
ClassDB::bind_method(D_METHOD("get_type"), &VisualShaderNodeMultiplyAdd::get_type);
ADD_PROPERTY(PropertyInfo(Variant::INT, "type", PROPERTY_HINT_ENUM, "Scalar,Vector"), "set_type", "get_type");
BIND_ENUM_CONSTANT(TYPE_SCALAR);
BIND_ENUM_CONSTANT(TYPE_VECTOR);
BIND_ENUM_CONSTANT(TYPE_MAX);
}
VisualShaderNodeMultiplyAdd::VisualShaderNodeMultiplyAdd() {
type = TYPE_SCALAR;
set_input_port_default_value(0, 0.0);
set_input_port_default_value(1, 0.0);
set_input_port_default_value(2, 0.0);
}