clip-planes-qml examples

Demonstrates use of:
-StencilOp / StencilTest
-StateSet and nested StateSet
-ClipPlane
-Multiple render passes with different shaders
-Use of layers

Change-Id: I2d3f87e99e1fdbf9ed22e81838d6cc1744b6b8c1
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 38 insertions, 0 deletions

diff --git a/examples/qt3d/clip-planes-qml/phong-clip.vert b/examples/qt3d/clip-planes-qml/phong-clip.vert
new file mode 100644
index 000000000..95b83bf75
--- /dev/null
+++ b/examples/qt3d/clip-planes-qml/phong-clip.vert
@@ -0,0 +1,38 @@
+#version 150 core
+
+in vec3 vertexPosition;
+in vec3 vertexNormal;
+
+out VertexData {
+    vec3 position;
+    vec3 normal;
+} v_out;
+
+struct Section {
+    vec4 equation;
+    vec3 center;
+};
+
+struct SectionsData {
+    int sectionsCount;
+    Section sections[8];
+};
+
+uniform SectionsData sectionsData;
+uniform mat4 modelView;
+uniform mat4 modelMatrix;
+uniform mat3 modelViewNormal;
+uniform mat4 mvp;
+
+void main()
+{
+    v_out.normal = normalize( modelViewNormal * vertexNormal );
+    v_out.position = vec4(modelView * vec4( vertexPosition, 1.0 )).xyz;
+    vec3 worldPos = vec4(modelMatrix * vec4(vertexPosition, 1.0)).xyz;
+
+    for (int i = 0; i < sectionsData.sectionsCount; ++i) {
+        gl_ClipDistance[i] = dot(vec4(worldPos, 1.0), sectionsData.sections[i].equation);
+    }
+
+    gl_Position = mvp * vec4( vertexPosition, 1.0 );
+}