环境光照，太阳，天气及其它室外环境

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本篇给出了制作室外场景的链接（若需要在总体制图方面获取帮助，详见 分类：关卡设计(en)。）

文章

• 天空盒（2D）(en)——基础的天空
• 3D天空盒(en)——在天空和中加入背景物体（例如建筑）
• 置换表层(en)——地形（例如小山，悬崖，山洞或者不平坦的草地）
• 降水问题(en)——确保你的雨/雪正常工作

实体

• Light environment(en) - Both Direct and Diffuse light coming from the skybox(en) ("toolsskybox" texture).
• env_sun(en) - places a glow sprite in the skybox to represent the sun itself.
• Shadow control(en) - necessary to control the dynamic shadows cast by light_environment.

注意：Light environment(en), env_sun(en) and Shadow control(en) should be used together. Each entity represents only a one aspect of a naturally unified phenomenon; Sunlight. Light environment(en) defines the direct sunlight settings and creates (buggy, unconfigurable) dynamic shadows which can only be overridden/controlled by Shadow control(en). env_sun(en) places a glow sprite in the skybox where the sunlight comes from. To make sense of it all, just make sure that the <angles> (Pitch/Yaw/Roll) are set the same for all three entities. Unfortunately Shadow control(en) does not have the Pitch override parameter, so its Pitch will be determined by the first of its <angles>. Even more unfortunately, the Pitch override rotation cannot be switched off and is measured counter-clockwise from the horizontal (so straight down is -90 degrees) whereas the <angles> Pitch is rotation is clockwise (so straight down is +90 degrees).

• func_precipitation(en) - brush-based entity for rain or snow.
• Func viscluster(en) - for merging visleaf(en)s in large, open areas.
• For nature props check the props_foliage folder in Hammer Model Browser.

材质

• Search for nature in the Hammer(en) Material Browser.
• For smooth transitions between two types of material, such as grass to sand, use alpha blending with blend materials.

参见

• Water(en)
• Soundscapes(en)
• Dust, Fog, & Smoke(en)
• Lightning(en)
• List of Skyboxes(en)

外部链接

• Using env_sun Archived from the original on 2009-01-23.
• Adding HDR Lighting Archived from the original on 2009-01-23.