Files
panopainter/data/shaders/color-hue.glsl
2019-02-21 21:51:55 +01:00

29 lines
382 B
GLSL

[[vertex]]
uniform mat4 mvp;
in vec4 pos;
in vec2 uvs;
out vec3 uv;
void main()
{
gl_Position = mvp * pos;
uv = vec3(uvs, pos.w);
}
[[fragment]]
#include "include/hsv.glsl"
uniform mediump vec4 col;
uniform bool dir; // 0:horizontal, 1:vertical
in mediump vec3 uv;
out mediump vec4 frag;
void main()
{
frag = vec4(hsv2rgb(vec3(dir?uv.y:uv.x, 1.0, 1.0)), 1.0);
}