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You are here: GroIMP documentation » User tutorials » Light Modelling » Local illumination - Shader
02_user_tutorials:04_light_modelling:light-modeling-light-shader

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02_user_tutorials:04_light_modelling:light-modeling-light-shader [2025/05/30 17:07] – sophiewachtel02_user_tutorials:04_light_modelling:light-modeling-light-shader [2025/05/30 17:23] (current) – sophiewachtel
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 Lambertian reflection (Lambert, 1760) is a widely used model for diffuse reflection. It assumes an ideal diffusely reflecting surface, where the apparent brightness remains constant regardless of the observer’s viewing angle. Consequently, the reflected radiant intensity follows Lambert's cosine law. Lambertian reflection (Lambert, 1760) is a widely used model for diffuse reflection. It assumes an ideal diffusely reflecting surface, where the apparent brightness remains constant regardless of the observer’s viewing angle. Consequently, the reflected radiant intensity follows Lambert's cosine law.
  
-In GroIPM, a shader that simulates a Lambertian reflections can be implemented in two ways. The most straight forward way is to use a //RGBAShader// that just defines a colour (and an optional transparent part). The following code will generate a green box.+In GroIMP, a shader that simulates a Lambertian reflections can be implemented in two ways. The most straight forward way is to use a //RGBAShader// that just defines a colour (and an optional transparent part). The following code will generate a green box.
  
 <code java> <code java>
02_user_tutorials/04_light_modelling/light-modeling-light-shader.1748617677.txt.gz · Last modified: 2025/05/30 17:07 by sophiewachtel