module Graphics.Rendering.Ombra.Shader.Default3D where
import Graphics.Rendering.Ombra.Shader
type Uniforms = '[View3, Transform3, Texture2]
type Attributes = '[Position3, UV, Normal3]
data Texture2 = Texture2 Sampler2D deriving Generic
data Transform3 = Transform3 Mat4 deriving Generic
data View3 = View3 Mat4 deriving Generic
data Position3 = Position3 Vec3 deriving Generic
data Normal3 = Normal3 Vec3 deriving Generic
data UV = UV Vec2 deriving Generic
vertexShader :: VertexShader '[ Transform3, View3 ]
'[ Position3, UV, Normal3 ]
'[ UV, Normal3 ]
vertexShader (Transform3 modelMatrix :- View3 viewMatrix :- N)
(Position3 (Vec3 x y z) :- uv@(UV _) :- norm@(Normal3 _) :- N) =
let v = viewMatrix * modelMatrix * Vec4 x y z 1.0
in Vertex v :- uv :- norm :- N
fragmentShader :: FragmentShader '[ Texture2 ] [ UV, Normal3 ]
fragmentShader (Texture2 sampler :- N) (UV (Vec2 s t) :- Normal3 _ :- N) =
Fragment (texture2D sampler $ Vec2 s (1 t)) :- N