diff options
Diffstat (limited to 'vendor/gioui.org/shader/gio/zcover.vert.0.glsl150')
-rw-r--r-- | vendor/gioui.org/shader/gio/zcover.vert.0.glsl150 | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/vendor/gioui.org/shader/gio/zcover.vert.0.glsl150 b/vendor/gioui.org/shader/gio/zcover.vert.0.glsl150 new file mode 100644 index 0000000..a5005d6 --- /dev/null +++ b/vendor/gioui.org/shader/gio/zcover.vert.0.glsl150 @@ -0,0 +1,41 @@ +#version 150 + +struct m3x2 +{ + vec3 r0; + vec3 r1; +}; + +struct Block +{ + vec4 transform; + vec4 uvCoverTransform; + vec4 uvTransformR1; + vec4 uvTransformR2; +}; + +uniform Block _block; + +in vec2 pos; +out vec2 vUV; +in vec2 uv; +out vec2 vCoverUV; + +vec3 transform3x2(m3x2 t, vec3 v) +{ + return vec3(dot(t.r0, v), dot(t.r1, v), dot(vec3(0.0, 0.0, 1.0), v)); +} + +void main() +{ + vec2 p = vec2((pos * _block.transform.xy) + _block.transform.zw); + m3x2 param = m3x2(vec3(1.0, 0.0, 0.0), vec3(0.0, -1.0, 0.0)); + vec3 param_1 = vec3(p, 0.0); + gl_Position = vec4(transform3x2(param, param_1), 1.0); + m3x2 param_2 = m3x2(_block.uvTransformR1.xyz, _block.uvTransformR2.xyz); + vec3 param_3 = vec3(uv, 1.0); + vUV = transform3x2(param_2, param_3).xy; + vec3 uv3 = vec3(uv, 1.0); + vCoverUV = ((uv3 * vec3(_block.uvCoverTransform.xy, 1.0)) + vec3(_block.uvCoverTransform.zw, 0.0)).xy; +} + |