irrlicht/media/pp_opengl.frag
cutealien 8310a3fbad Avoid warning and make local variable lower-case.
git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6000 dfc29bdd-3216-0410-991c-e03cc46cb475
2019-12-12 16:32:41 +00:00

17 lines
385 B
GLSL

// Texture sampler
uniform sampler2D TextureSampler;
// TexCoords from vertex shader
varying vec2 TexCoords;
void main (void)
{
// Texture is sampled at Texcoords using texture2D
vec4 Color = texture2D(TextureSampler, TexCoords);
// Inverse the color to produce negative image effect
Color.rgb = 1.0 - Color.rgb;
gl_FragColor = Color;
}