*添加sample

1 files changed, 24 insertions, 0 deletions

diff --git a/samples/post-processing/shaders/rgb-split.jsl b/samples/post-processing/shaders/rgb-split.jsl
new file mode 100644
index 0000000..fcfb9f2
--- /dev/null
+++ b/samples/post-processing/shaders/rgb-split.jsl
@@ -0,0 +1,24 @@
+#VERTEX_SHADER
+Vertex vert(Vertex v)
+{
+    //v.xy += vec2(50 * sin(jin_Time.x * 2), 50 * cos(jin_Time.x * 2));
+	return v;
+}
+#END_VERTEX_SHADER
+#FRAGMENT_SHADER
+Color frag(Color col, Texture tex, Vertex v)
+{
+	float t = jin_Time.x;
+	float a = abs(sin(t)) * 3.14;
+    vec2 p = vec2(0.5*cos(a) + 0.5, 0.5*sin(a) + 0.5);
+    vec2 dir = v.uv - p;
+    float d = .7 * length(dir);
+    normalize(dir);
+    vec2 value = d * dir * 200 * abs(sin(t * 3));
+
+    vec4 c1 = texel(tex, v.uv - value / jin_RenderTargetSize.x);
+    vec4 c2 = texel(tex, v.uv);
+    vec4 c3 = texel(tex, v.uv + value / jin_RenderTargetSize.y);
+    return vec4(c1.r, c2.g, c3.b, c1.a + c2.a + c3.b);
+}
+#END_FRAGMENT_SHADER
\ No newline at end of file