diff options
Diffstat (limited to 'data/shaders/path-vert.glsl')
-rw-r--r-- | data/shaders/path-vert.glsl | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/data/shaders/path-vert.glsl b/data/shaders/path-vert.glsl new file mode 100644 index 0000000..38fa5d2 --- /dev/null +++ b/data/shaders/path-vert.glsl @@ -0,0 +1,44 @@ +// -*- mode: c -*- + +#ifdef GLSL330 +layout (location = 0) in vec2 position; +layout (location = 1) in vec2 tex; +layout (location = 2) in float strokeLength; +#elif defined(GLSL130) +in vec2 position; +in vec2 tex; +in float strokeLength; +#elif defined(GLSL120) +attribute vec2 position; +attribute vec2 tex; +attribute float strokeLength; +#endif + +#ifdef GLSL120 +varying vec2 fragTex; +varying float fragStrokeLength; +#else +out vec2 fragTex; +out float fragStrokeLength; +#endif + +uniform mat4 mvp; +uniform vec4 color; +uniform int mode; +uniform int strokeClosed; + +void main(void) { + // Short-circuit because the fragments will just be discarded anyway. + if (color.a <= 0.0) { + gl_Position = vec4(0.0, 0.0, 0.0, 1.0); + return; + } + + // Stroke specific setup. + if (mode == 1) { + fragStrokeLength = strokeLength; + } + + fragTex = tex; + gl_Position = mvp * vec4(position.xy, 0.0, 1.0); +} |