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author | Alexandru Croitor <alexandru.croitor@qt.io> | 2019-07-11 14:51:40 +0200 |
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committer | Alexandru Croitor <alexandru.croitor@qt.io> | 2019-07-11 17:24:39 +0200 |
commit | 13374ceb165c44658aa97890c37b206859c9a31c (patch) | |
tree | 562362b196a459ee3449a5a1e60e5216a9dd6984 /examples/quick/shadereffects/content/shaders/rhi/outline.frag | |
parent | ae47deba4c943c496412530a8d2a5a688ae12038 (diff) | |
parent | b5d18be5a03406d0aac83856dd41e1525fd14a28 (diff) |
Merge remote-tracking branch 'origin/wip/qt6' into wip/cmake
Change-Id: I2963c1209316fb6755f572969f368970450d7991
Diffstat (limited to 'examples/quick/shadereffects/content/shaders/rhi/outline.frag')
-rw-r--r-- | examples/quick/shadereffects/content/shaders/rhi/outline.frag | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/examples/quick/shadereffects/content/shaders/rhi/outline.frag b/examples/quick/shadereffects/content/shaders/rhi/outline.frag new file mode 100644 index 0000000000..26df69c5fe --- /dev/null +++ b/examples/quick/shadereffects/content/shaders/rhi/outline.frag @@ -0,0 +1,24 @@ +#version 440 + +layout(location = 0) in vec2 qt_TexCoord0; +layout(location = 0) out vec4 fragColor; + +layout(binding = 1) uniform sampler2D source; + +layout(std140, binding = 0) uniform buf { + mat4 qt_Matrix; + float qt_Opacity; + vec2 delta; +} ubuf; + +void main() +{ + vec4 tl = texture(source, qt_TexCoord0 - ubuf.delta); + vec4 tr = texture(source, qt_TexCoord0 + vec2(ubuf.delta.x, -ubuf.delta.y)); + vec4 bl = texture(source, qt_TexCoord0 - vec2(ubuf.delta.x, -ubuf.delta.y)); + vec4 br = texture(source, qt_TexCoord0 + ubuf.delta); + vec4 gx = (tl + bl) - (tr + br); + vec4 gy = (tl + tr) - (bl + br); + fragColor.xyz = vec3(0.); + fragColor.w = clamp(dot(sqrt(gx * gx + gy * gy), vec4(1.)), 0., 1.) * ubuf.qt_Opacity; +} |