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Add EXPOSURE built in to spatial shaders #71364

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Apr 13, 2023
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Add EXPOSURE built in to spatial shaders #71364

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1 change: 1 addition & 0 deletions drivers/gles3/storage/material_storage.cpp
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Expand Up @@ -1603,6 +1603,7 @@ MaterialStorage::MaterialStorage() {
//builtins

actions.renames["TIME"] = "scene_data.time";
actions.renames["EXPOSURE"] = "(1.0 / scene_data.emissive_exposure_normalization)";
actions.renames["PI"] = _MKSTR(Math_PI);
actions.renames["TAU"] = _MKSTR(Math_TAU);
actions.renames["E"] = _MKSTR(Math_E);
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1 change: 1 addition & 0 deletions editor/plugins/visual_shader_editor_plugin.cpp
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Expand Up @@ -5516,6 +5516,7 @@ VisualShaderEditor::VisualShaderEditor() {

// NODE3D-FOR-ALL

add_options.push_back(AddOption("Exposure", "Input/All", "VisualShaderNodeInput", vformat(input_param_shader_modes, "exposure", "EXPOSURE"), { "exposure" }, VisualShaderNode::PORT_TYPE_SCALAR, -1, Shader::MODE_SPATIAL));
add_options.push_back(AddOption("InvProjectionMatrix", "Input/All", "VisualShaderNodeInput", vformat(input_param_shader_modes, "inv_projection_matrix", "INV_PROJECTION_MATRIX"), { "inv_projection_matrix" }, VisualShaderNode::PORT_TYPE_TRANSFORM, -1, Shader::MODE_SPATIAL));
add_options.push_back(AddOption("InvViewMatrix", "Input/All", "VisualShaderNodeInput", vformat(input_param_shader_modes, "inv_view_matrix", "INV_VIEW_MATRIX"), { "inv_view_matrix" }, VisualShaderNode::PORT_TYPE_TRANSFORM, -1, Shader::MODE_SPATIAL));
add_options.push_back(AddOption("ModelMatrix", "Input/All", "VisualShaderNodeInput", vformat(input_param_shader_modes, "model_matrix", "MODEL_MATRIX"), { "model_matrix" }, VisualShaderNode::PORT_TYPE_TRANSFORM, -1, Shader::MODE_SPATIAL));
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2 changes: 1 addition & 1 deletion scene/resources/material.cpp
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Expand Up @@ -1286,7 +1286,7 @@ void BaseMaterial3D::_update_shader() {
code += " vec2 ref_ofs = SCREEN_UV - ref_normal.xy * dot(texture(texture_refraction,base_uv),refraction_texture_channel) * refraction;\n";
}
code += " float ref_amount = 1.0 - albedo.a * albedo_tex.a;\n";
code += " EMISSION += textureLod(screen_texture,ref_ofs,ROUGHNESS * 8.0).rgb * ref_amount;\n";
code += " EMISSION += textureLod(screen_texture,ref_ofs,ROUGHNESS * 8.0).rgb * ref_amount * EXPOSURE;\n";
code += " ALBEDO *= 1.0 - ref_amount;\n";
code += " ALPHA = 1.0;\n";

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3 changes: 3 additions & 0 deletions scene/resources/visual_shader.cpp
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Expand Up @@ -2714,6 +2714,7 @@ const VisualShaderNodeInput::Port VisualShaderNodeInput::ports[] = {
{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_TRANSFORM, "projection_matrix", "PROJECTION_MATRIX" },
{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_TRANSFORM, "inv_projection_matrix", "INV_PROJECTION_MATRIX" },
{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_SCALAR, "time", "TIME" },
{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_SCALAR, "exposure", "EXPOSURE" },
{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_VECTOR_2D, "viewport_size", "VIEWPORT_SIZE" },
{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_BOOLEAN, "output_is_srgb", "OUTPUT_IS_SRGB" },
{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_SCALAR_INT, "view_index", "VIEW_INDEX" },
Expand Down Expand Up @@ -2748,6 +2749,7 @@ const VisualShaderNodeInput::Port VisualShaderNodeInput::ports[] = {
{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_TRANSFORM, "projection_matrix", "PROJECTION_MATRIX" },
{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_TRANSFORM, "inv_projection_matrix", "INV_PROJECTION_MATRIX" },
{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_SCALAR, "time", "TIME" },
{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_SCALAR, "exposure", "EXPOSURE" },
{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_VECTOR_2D, "viewport_size", "VIEWPORT_SIZE" },
{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_BOOLEAN, "output_is_srgb", "OUTPUT_IS_SRGB" },
{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_BOOLEAN, "front_facing", "FRONT_FACING" },
Expand Down Expand Up @@ -2782,6 +2784,7 @@ const VisualShaderNodeInput::Port VisualShaderNodeInput::ports[] = {
{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_TRANSFORM, "projection_matrix", "PROJECTION_MATRIX" },
{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_TRANSFORM, "inv_projection_matrix", "INV_PROJECTION_MATRIX" },
{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_SCALAR, "time", "TIME" },
{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_SCALAR, "exposure", "EXPOSURE" },
{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR_2D, "viewport_size", "VIEWPORT_SIZE" },
{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_BOOLEAN, "output_is_srgb", "OUTPUT_IS_SRGB" },

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1 change: 1 addition & 0 deletions servers/rendering/renderer_rd/forward_clustered/scene_shader_forward_clustered.cpp
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Expand Up @@ -584,6 +584,7 @@ void SceneShaderForwardClustered::init(const String p_defines) {
//builtins

actions.renames["TIME"] = "global_time";
actions.renames["EXPOSURE"] = "(1.0 / scene_data_block.data.emissive_exposure_normalization)";
actions.renames["PI"] = _MKSTR(Math_PI);
actions.renames["TAU"] = _MKSTR(Math_TAU);
actions.renames["E"] = _MKSTR(Math_E);
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1 change: 1 addition & 0 deletions servers/rendering/renderer_rd/forward_mobile/scene_shader_forward_mobile.cpp
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Expand Up @@ -474,6 +474,7 @@ void SceneShaderForwardMobile::init(const String p_defines) {
//builtins

actions.renames["TIME"] = "scene_data_block.data.time";
actions.renames["EXPOSURE"] = "(1.0 / scene_data_block.data.emissive_exposure_normalization)";
actions.renames["PI"] = _MKSTR(Math_PI);
actions.renames["TAU"] = _MKSTR(Math_TAU);
actions.renames["E"] = _MKSTR(Math_E);
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1 change: 1 addition & 0 deletions servers/rendering/shader_types.cpp
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Expand Up @@ -59,6 +59,7 @@ ShaderTypes::ShaderTypes() {
/*************** SPATIAL ***********************/

shader_modes[RS::SHADER_SPATIAL].functions["global"].built_ins["TIME"] = constt(ShaderLanguage::TYPE_FLOAT);
shader_modes[RS::SHADER_SPATIAL].functions["global"].built_ins["EXPOSURE"] = constt(ShaderLanguage::TYPE_FLOAT);
shader_modes[RS::SHADER_SPATIAL].functions["constants"].built_ins["PI"] = constt(ShaderLanguage::TYPE_FLOAT);
shader_modes[RS::SHADER_SPATIAL].functions["constants"].built_ins["TAU"] = constt(ShaderLanguage::TYPE_FLOAT);
shader_modes[RS::SHADER_SPATIAL].functions["constants"].built_ins["E"] = constt(ShaderLanguage::TYPE_FLOAT);
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