67 lines
2.5 KiB
Common Lisp
67 lines
2.5 KiB
Common Lisp
;;;; basic-shaders.lisp (Lisp shader code)
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(in-package wh-engine/render)
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(define-shader basic-shader
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(:in ((vert-pos :type :vec3 :location 0)
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(vert-uv :type :vec2 :location 1))
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:out ((*frag-colour* :type :vec4))
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:uniform ((model :type :mat4)
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(view :type :mat4)
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(proj :type :mat4)
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(main-tex :type :sampler-2d)
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(colour :type :vec4)))
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:documentation "Simple shader for 2D sprites."
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:version 330
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:vert ((setf *position* (* proj view model (vec4 vert-pos 1.0))))
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:frag ((setf *frag-colour* (* (sample-texture main-tex vert-uv) colour)))
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:options (:depth-test t
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:depth-write t
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:blend t))
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(define-shader render-target-blit-shader
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(:in ((vert-pos :type :vec2 :location 0))
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:out ((*frag-colour* :type :vec4)
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(*frag-depth* :type :float))
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:uniform ((main-tex :type :sampler-2d)
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(depth-tex :type :depth-sampler-2d)))
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:documentation "Shader for compositing render targets together."
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:version 330
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:vert ((setf *position* (vec4 vert-pos 0.0 1.0)))
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:frag ((setf *frag-colour* (sample-texture main-tex vert-pos)
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*frag-depth* (sample-texture depth-tex vert-pos)))
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:options (:depth-test t
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:depth-write t
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:blend nil))
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(define-shader ui-basic-shader
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(:in ((vert-pos :type :vec2 :location 0)
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(vert-uv :type :vec2 :location 1))
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:out ((*frag-colour* :type :vec4))
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:uniform ((model :type :mat4)
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(proj :type :mat4)
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(main-tex :type :sampler-2d)
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(colour :type :vec4)))
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:documentation "Simple shader for overlay UI."
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:version 330
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:vert ((setf *position* (* proj model (vec4 vert-pos 1.0 1.0))))
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:frag ((setf *frag-colour* (* (sample-texture main-tex vert-uv) colour)))
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:options (:depth-test nil
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:depth-write nil
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:blend t))
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(define-shader ui-glyph-shader
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(:in ((vert-pos :type :vec2 :location 0)
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(vert-uv :type :vec2 :location 1))
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:out ((*frag-colour* :type :vec4))
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:uniform ((model :type :mat4)
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(proj :type :mat4)
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(main-tex :type :sampler-2d)
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(colour :type :vec3)))
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:documentation "Shader for text and other glyphs within overlay UI."
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:version 330
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:vert ((setf *position* (* proj model (vec4 vert-pos 1.0 1.0))))
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:frag ((setf *frag-colour* (vec4 colour (vx (sample-texture main-tex vert-uv)))))
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:options (:depth-test nil
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:depth-write nil
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:blend t))
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