{"id":5096,"date":"2024-08-12T15:38:15","date_gmt":"2024-08-12T15:38:15","guid":{"rendered":"https:\/\/cgelementary.com\/?post_type=knowledgebase&p=5096"},"modified":"2024-08-23T18:32:56","modified_gmt":"2024-08-23T18:32:56","slug":"volumetric-lighting","status":"publish","type":"knowledgebase","link":"https:\/\/cgelementary.com\/?knowledgebase=volumetric-lighting","title":{"rendered":"Volumetric Lighting"},"content":{"rendered":"\n
[et_pb_section fb_built=”1″ _builder_version=”4.20.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.20.2″ _module_preset=”default” width=”91%” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.20.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”http:\/\/cgelementary.com\/wp-content\/uploads\/Vol01.jpg” title_text=”Vol01″ _builder_version=”4.20.2″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.20.2″ _module_preset=”default” width=”100%” custom_padding=”||3px|||” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.20.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.20.2″ _module_preset=”default” width=”100%” custom_margin=”|-48px||||” custom_padding=”|0px||||” global_colors_info=”{}”]

Volumetric Lights<\/h4>\n

1-build lightmap of your scene.<\/p>\n

 <\/p>\n

2 – add an object as fog container to the scene (it can be any object, but usually it’s a cube or a sphere) and place it where you want the fog at.<\/p>\n

 <\/p>[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.20.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”http:\/\/cgelementary.com\/wp-content\/uploads\/Sene01.jpg” title_text=”Sene01″ _builder_version=”4.20.2″ _module_preset=”default” width=”47.7%” custom_margin=”|||115px||” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.20.2″ _module_preset=”default” width=”100%” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.20.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”http:\/\/cgelementary.com\/wp-content\/uploads\/Contaainer-1.jpg” title_text=”Contaainer” _builder_version=”4.20.2″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.20.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”http:\/\/cgelementary.com\/wp-content\/uploads\/Conatiner-wire-frame.jpg” title_text=”Conatiner-wire-frame” _builder_version=”4.20.2″ _module_preset=”default” width=”85%” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.20.2″ _module_preset=”default” width=”100%” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.20.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.20.2″ _module_preset=”default” global_colors_info=”{}”]

3 – Now select container and in X-Ray shlf press \"\"<\/a> , now the scene should look like this.<\/p>\n

\"\"<\/a><\/p>\n

4 – add a light and increase it’s intensity to a high value like 1000 until volume is visible.<\/p>\n

\"\"<\/a><\/p>\n

5 – if volume looks jagged select the container, go to chanel box and decrease volume detail size<\/strong> to increase volume resloution \u00a0\u00a0 \u00a0\u00a0\"\"<\/a><\/p>\n

*Hint : you can change volume color by changing light’s color.<\/p>\n

 <\/p>[\/et_pb_text][et_pb_text _builder_version=”4.20.2″ _module_preset=”default” global_colors_info=”{}”]

Volumetric Shadows<\/h4>\n

1- Select an object that you want to cast shadows.<\/p>\n

 <\/p>\n

2 – in X-Ray shelf press \"\"<\/a> to make a volumetric light blocker from selected object (make sure selected object has no holes, if it does, you can make a proxy object)<\/p>\n

\"\"<\/a><\/p>\n

 <\/p>\n

3 – if there are any artifacts go to Chanel box there are two parameters volume detail size<\/strong> and volume offset, <\/strong>you can increase the shadow caster res by lowering the volume detail size<\/strong> and push the volume toward object by setting volume offset to some negative value.<\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

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