Fragment Shader

The Renderable Component accepts custom fragment shaders.

These fragment shaders are written in GLSL and have some special variables.

Inputs

Name	Type	Description
NtshEngn_position	vec3	The fragment’s position, in world-space.
NtshEngn_normal	vec3	The fragment’s normal.
NtshEngn_tangent	vec3	The fragment’s tangent.
NtshEngn_bitangent	vec3	The fragment’s bitangent.
NtshEngn_uv	vec2	The fragment’s texture coordinates.
NtshEngn_tbn	mat3	The fragment’s Tangent-Bitangent-Normal matrix.
NtshEngn_diffuseTextureSampler	sampler2D	The object’s material’s diffuse texture.
NtshEngn_normalTextureSampler	sampler2D	The object’s material’s normal texture.
NtshEngn_metalnessTextureSampler	sampler2D	The object’s material’s metalness texture.
NtshEngn_roughnessTextureSampler	sampler2D	The object’s material’s roughness texture.
NtshEngn_occlusionTextureSampler	sampler2D	The object’s material’s occlusion texture.
NtshEngn_emissiveTextureSampler	sampler2D	The object’s material’s emissive texture.
NtshEngn_emissiveFactor	float	The object’s material’s metalness factor.
NtshEngn_alphaCutoff	float	The object’s material’s alpha cutoff.
NtshEngn_scaleUV	vec2	The object’s material’s UV scale.
NtshEngn_offsetUV	vec2	The object’s material’s UV offset.
NtshEngn_useTriplanarMapping	bool	true if the object’s material uses triplanar mapping, else, false.
NtshEngn_directionalLightCount	uint	The number of directional lights in the scene.
NtshEngn_directionalLight(i)	Light	The *i*th directional light.
NtshEngn_pointLightCount	uint	The number of point lights in the scene.
NtshEngn_pointLight(i)	Light	The *i*th point light.
NtshEngn_spotLightCount	uint	The number of spot lights in the scene.
NtshEngn_spotLight(i)	Light	The *i*th spot light.
NtshEngn_ambientLightCount	uint	The number of ambient lights in the scene.
NtshEngn_ambientLight(i)	Light	The *i*th ambient light.
NtshEngn_time	float	The time since the application’s launch, in seconds.
NtshEngn_cameraPosition	vec3	The camera’s position, in world-space.
NtshEngn_useReversedDepth	bool	true if the graphics module uses reversed depth (1 is close, 0 is far), else, false (0 is close, 1 is far).

Outputs

Name	Type	Description
NtshEngn_outColor	vec4	The output color.
NtshEngn_outDepth	float	The output depth.