diff options
Diffstat (limited to 'tests/manual/scenegraph_lancelot/data/shared/shaders/shadow_rhi.frag')
-rw-r--r-- | tests/manual/scenegraph_lancelot/data/shared/shaders/shadow_rhi.frag | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tests/manual/scenegraph_lancelot/data/shared/shaders/shadow_rhi.frag b/tests/manual/scenegraph_lancelot/data/shared/shaders/shadow_rhi.frag new file mode 100644 index 0000000000..6a2d8dc122 --- /dev/null +++ b/tests/manual/scenegraph_lancelot/data/shared/shaders/shadow_rhi.frag @@ -0,0 +1,23 @@ +#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 offset; + vec2 delta; +} ubuf; + +void main() { + vec2 delta2 = vec2(ubuf.delta.x, -ubuf.delta.y); + float shadow = 0.25 * (texture(source, qt_TexCoord0 - ubuf.offset + ubuf.delta).a + + texture(source, qt_TexCoord0 - ubuf.offset - ubuf.delta).a + + texture(source, qt_TexCoord0 - ubuf.offset + delta2).a + + texture(source, qt_TexCoord0 - ubuf.offset - delta2).a); + vec4 color = texture(source, qt_TexCoord0); + fragColor = mix(vec4(vec3(0.), 0.5 * shadow), color, color.a); +} |