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[3.2] Optimizations for Fresnel and Texture nodes in visual shaders

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This commit is contained in:
Yuri Roubinsky
2020-07-31 09:05:43 +03:00
parent e35687a116
commit ec7228a675
4 changed files with 107 additions and 28 deletions
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21
scene/resources/visual_shader_nodes.cpp
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@@ -3266,6 +3266,10 @@ String VisualShaderNodeTextureUniform::get_output_port_name(int p_port) const {
}
}
bool VisualShaderNodeTextureUniform::is_code_generated() const {
return is_output_port_connected(0) || is_output_port_connected(1); // rgb or alpha
}
String VisualShaderNodeTextureUniform::generate_global(Shader::Mode p_mode, VisualShader::Type p_type, int p_id) const {
String code = "uniform sampler2D " + get_uniform_name();
@@ -3749,6 +3753,13 @@ String VisualShaderNodeFresnel::get_output_port_name(int p_port) const {
return "result";
}
bool VisualShaderNodeFresnel::is_generate_input_var(int p_port) const {
if (p_port == 2) {
return false;
}
return true;
}
String VisualShaderNodeFresnel::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 {
String normal;
@@ -3764,7 +3775,15 @@ String VisualShaderNodeFresnel::generate_code(Shader::Mode p_mode, VisualShader:
view = p_input_vars[1];
}
return "\t" + p_output_vars[0] + " = " + p_input_vars[2] + " ? (pow(clamp(dot(" + normal + ", " + view + "), 0.0, 1.0), " + p_input_vars[3] + ")) : (pow(1.0 - clamp(dot(" + normal + ", " + view + "), 0.0, 1.0), " + p_input_vars[3] + "));\n";
if (is_input_port_connected(2)) {
return "\t" + p_output_vars[0] + " = " + p_input_vars[2] + " ? (pow(clamp(dot(" + normal + ", " + view + "), 0.0, 1.0), " + p_input_vars[3] + ")) : (pow(1.0 - clamp(dot(" + normal + ", " + view + "), 0.0, 1.0), " + p_input_vars[3] + "));\n";
} else {
if (get_input_port_default_value(2)) {
return "\t" + p_output_vars[0] + " = pow(clamp(dot(" + normal + ", " + view + "), 0.0, 1.0), " + p_input_vars[3] + ");\n";
} else {
return "\t" + p_output_vars[0] + " = pow(1.0 - clamp(dot(" + normal + ", " + view + "), 0.0, 1.0), " + p_input_vars[3] + ");\n";
}
}
}
String VisualShaderNodeFresnel::get_input_port_default_hint(int p_port) const {