diff options
Diffstat (limited to 'shaders/skia/10-40.shader_test')
-rw-r--r-- | shaders/skia/10-40.shader_test | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/shaders/skia/10-40.shader_test b/shaders/skia/10-40.shader_test new file mode 100644 index 0000000..d535377 --- /dev/null +++ b/shaders/skia/10-40.shader_test @@ -0,0 +1,42 @@ +[require] +GLSL >= 1.40 + +[fragment shader] +#version 140 + +out vec4 sk_FragColor; +uniform vec4 uColor_Stage0; +noperspective in vec4 vHairQuadEdge_Stage0; +void main() { + vec4 outputColor_Stage0; + vec4 outputCoverage_Stage0; + { + outputColor_Stage0 = uColor_Stage0; + float edgeAlpha; + vec2 duvdx = dFdx(vHairQuadEdge_Stage0.xy); + vec2 duvdy = -dFdy(vHairQuadEdge_Stage0.xy); + vec2 gF = vec2((2.0 * vHairQuadEdge_Stage0.x) * duvdx.x - duvdx.y, (2.0 * vHairQuadEdge_Stage0.x) * duvdy.x - duvdy.y); + edgeAlpha = vHairQuadEdge_Stage0.x * vHairQuadEdge_Stage0.x - vHairQuadEdge_Stage0.y; + edgeAlpha = sqrt((edgeAlpha * edgeAlpha) / dot(gF, gF)); + edgeAlpha = max(1.0 - edgeAlpha, 0.0); + outputCoverage_Stage0 = vec4(edgeAlpha); + } + { + sk_FragColor = outputColor_Stage0 * outputCoverage_Stage0; + } +} + +[vertex shader] +#version 140 + +uniform vec4 sk_RTAdjust; +in vec2 inPosition; +in vec4 inHairQuadEdge; +noperspective out vec4 vHairQuadEdge_Stage0; +void main() { + vHairQuadEdge_Stage0 = inHairQuadEdge; + vec2 pos2 = inPosition; + gl_Position = vec4(pos2.x, pos2.y, 0.0, 1.0); + gl_Position = vec4(gl_Position.xy * sk_RTAdjust.xz + gl_Position.ww * sk_RTAdjust.yw, 0.0, gl_Position.w); +} + |