diff options
Diffstat (limited to 'scene/resources/visual_shader_nodes.cpp')
| -rw-r--r-- | scene/resources/visual_shader_nodes.cpp | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/scene/resources/visual_shader_nodes.cpp b/scene/resources/visual_shader_nodes.cpp index 235b56b0ce..06f18472ce 100644 --- a/scene/resources/visual_shader_nodes.cpp +++ b/scene/resources/visual_shader_nodes.cpp @@ -2968,6 +2968,98 @@ VisualShaderNodeTextureUniform::VisualShaderNodeTextureUniform() { color_default = COLOR_DEFAULT_WHITE; } +////////////// Texture Uniform (Triplanar) + +String VisualShaderNodeTextureUniformTriplanar::get_caption() const { + return "TextureUniformTriplanar"; +} + +int VisualShaderNodeTextureUniformTriplanar::get_input_port_count() const { + return 2; +} + +VisualShaderNodeTextureUniform::PortType VisualShaderNodeTextureUniformTriplanar::get_input_port_type(int p_port) const { + if (p_port == 0) { + return PORT_TYPE_VECTOR; + } else if (p_port == 1) { + return PORT_TYPE_VECTOR; + } + return PORT_TYPE_SCALAR; +} + +String VisualShaderNodeTextureUniformTriplanar::get_input_port_name(int p_port) const { + if (p_port == 0) { + return "weights"; + } else if (p_port == 1) { + return "pos"; + } + return ""; +} + +String VisualShaderNodeTextureUniformTriplanar::generate_global_per_node(Shader::Mode p_mode, VisualShader::Type p_type, int p_id) const { + + String code; + + code += "// TRIPLANAR FUNCTION GLOBAL CODE\n"; + code += "\tvec4 triplanar_texture(sampler2D p_sampler, vec3 p_weights, vec3 p_triplanar_pos) {\n"; + code += "\t\tvec4 samp = vec4(0.0);\n"; + code += "\t\tsamp += texture(p_sampler, p_triplanar_pos.xy) * p_weights.z;\n"; + code += "\t\tsamp += texture(p_sampler, p_triplanar_pos.xz) * p_weights.y;\n"; + code += "\t\tsamp += texture(p_sampler, p_triplanar_pos.zy * vec2(-1.0, 1.0)) * p_weights.x;\n"; + code += "\t\treturn samp;\n"; + code += "\t}\n"; + code += "\n"; + code += "\tuniform vec3 triplanar_scale = vec3(1.0, 1.0, 1.0);\n"; + code += "\tuniform vec3 triplanar_offset;\n"; + code += "\tuniform float triplanar_sharpness = 0.5;\n"; + code += "\n"; + code += "\tvarying vec3 triplanar_power_normal;\n"; + code += "\tvarying vec3 triplanar_pos;\n"; + + return code; +} + +String VisualShaderNodeTextureUniformTriplanar::generate_global_per_func(Shader::Mode p_mode, VisualShader::Type p_type, int p_id) const { + + String code; + + if (p_type == VisualShader::TYPE_VERTEX) { + + code += "\t// TRIPLANAR FUNCTION VERTEX CODE\n"; + code += "\t\ttriplanar_power_normal = pow(abs(NORMAL), vec3(triplanar_sharpness));\n"; + code += "\t\ttriplanar_power_normal /= dot(triplanar_power_normal, vec3(1.0));\n"; + code += "\t\ttriplanar_pos = VERTEX * triplanar_scale + triplanar_offset;\n"; + code += "\t\ttriplanar_pos *= vec3(1.0, -1.0, 1.0);\n"; + } + + return code; +} + +String VisualShaderNodeTextureUniformTriplanar::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 id = get_uniform_name(); + String code = "\t{\n"; + + if (p_input_vars[0] == String() && p_input_vars[1] == String()) { + code += "\t\tvec4 n_tex_read = triplanar_texture( " + id + ", triplanar_power_normal, triplanar_pos );\n"; + } else if (p_input_vars[0] != String() && p_input_vars[1] == String()) { + code += "\t\tvec4 n_tex_read = triplanar_texture( " + id + ", " + p_input_vars[0] + ", triplanar_pos );\n"; + } else if (p_input_vars[0] == String() && p_input_vars[1] != String()) { + code += "\t\tvec4 n_tex_read = triplanar_texture( " + id + ", triplanar_power_normal," + p_input_vars[1] + " );\n"; + } else { + code += "\t\tvec4 n_tex_read = triplanar_texture( " + id + ", " + p_input_vars[0] + ", " + p_input_vars[1] + " );\n"; + } + + code += "\t\t" + p_output_vars[0] + " = n_tex_read.rgb;\n"; + code += "\t\t" + p_output_vars[1] + " = n_tex_read.a;\n"; + code += "\t}\n"; + + return code; +} + +VisualShaderNodeTextureUniformTriplanar::VisualShaderNodeTextureUniformTriplanar() { +} + ////////////// CubeMap Uniform String VisualShaderNodeCubeMapUniform::get_caption() const { |