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| author | Emmanuel Gil Peyrot <emmanuel.peyrot@collabora.com> | 2015-11-23 21:53:22 +0000 |
|---|---|---|
| committer | Tomaž Vajngerl <tomaz.vajngerl@collabora.com> | 2015-11-23 23:06:39 +0100 |
| commit | 6bc132f8bf85516b4a89386c371fdd3e9937b4bf (patch) | |
| tree | fb20dff8d0ffccbb6cdeb8c9a04d4d8ae3f89e5c /slideshow/opengl/basicFragmentShader.glsl | |
| parent | b8eff3afb4a4b313c9be668951ae2cb458cd6a4a (diff) | |
slideshow: Add back lighting in the SimpleTransition shaders
Change-Id: Iec854a8369a7a9f845f261233e46aea8097db109
Diffstat (limited to 'slideshow/opengl/basicFragmentShader.glsl')
| -rw-r--r-- | slideshow/opengl/basicFragmentShader.glsl | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/slideshow/opengl/basicFragmentShader.glsl b/slideshow/opengl/basicFragmentShader.glsl index 7744432f0bcf..01d72a260ca0 100644 --- a/slideshow/opengl/basicFragmentShader.glsl +++ b/slideshow/opengl/basicFragmentShader.glsl @@ -30,10 +30,14 @@ uniform sampler2D slideTexture; varying vec2 v_texturePosition; +varying vec3 v_normal; void main() { - // TODO: handle lighting. - gl_FragColor = texture2D(slideTexture, v_texturePosition); + vec3 lightVector = vec3(0.0, 0.0, 1.0); + float light = max(dot(lightVector, v_normal), 0.0); + vec4 fragment = texture2D(slideTexture, v_texturePosition); + vec4 black = vec4(0.0, 0.0, 0.0, fragment.a); + gl_FragColor = mix(black, fragment, light); } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |