Port instanced-arrays-qml to RHI

Change-Id: I272cfa7688260f4ffb6b8ff49012188f717f62f4
Reviewed-by: Mike Krus <mike.krus@kdab.com>

1 files changed, 57 insertions, 0 deletions

diff --git a/examples/qt3d/instanced-arrays-qml/gl45/instanced.vert b/examples/qt3d/instanced-arrays-qml/gl45/instanced.vert
new file mode 100644
index 000000000..bf3ba165b
--- /dev/null
+++ b/examples/qt3d/instanced-arrays-qml/gl45/instanced.vert
@@ -0,0 +1,57 @@
+#version 450 core
+
+layout(location = 0) in vec3 vertexPosition;
+layout(location = 1) in vec3 vertexNormal;
+layout(location = 2) in vec3 pos;
+
+layout(location = 0) out vec3 position;
+layout(location = 1) out vec3 normal;
+layout(location = 2) out vec3 kd;
+
+layout(std140, binding = 1) uniform qt3d_command_uniforms {
+  mat4 modelMatrix;
+  mat4 inverseModelMatrix;
+  mat4 modelViewMatrix;
+  mat3 modelNormalMatrix;
+  mat4 inverseModelViewMatrix;
+  mat4 modelViewProjection;
+  mat4 inverseModelViewProjectionMatrix;
+};
+
+// Calculate RGB triplet from HSV
+vec3 hsvToRGB( float h, float s, float v )
+{
+    if ( s <= 0.0 )
+        return vec3( v );
+
+    h = h * 6.0;
+    float c = v * s;
+    float x = ( 1.0 - abs( ( mod( h, 2 ) - 1 ) ) ) * c;
+    float m = v - c;
+    float r = 0.0;
+    float g = 0.0;
+    float b = 0.0;
+
+    if ( h < 1.0 )      { r = c;   g = x;   b = 0.0;}
+    else if ( h < 2.0 ) { r = x;   g = c;   b = 0.0; }
+    else if ( h < 3.0 ) { r = 0.0; g = c;   b = x; }
+    else if ( h < 4.0 ) { r = 0.0; g = x;   b = c; }
+    else if ( h < 5.0 ) { r = x;   g = 0.0; b = c; }
+    else                { r = c;   g = 0.0; b = x; }
+
+    return vec3( r + m, g + m, b + m );
+}
+
+void main()
+{
+    normal = normalize( modelNormalMatrix * vertexNormal );
+
+    vec3 offsetPos = vertexPosition + pos;
+    position = vec3(modelViewMatrix * vec4(offsetPos, 1.0));
+
+    float hue = fract( pos.x / 10.0 );
+    float saturation = fract( pos.z / 20.0 );
+    kd = hsvToRGB( hue, saturation, 1.0 );
+
+    gl_Position = modelViewProjection * vec4(offsetPos, 1.0);
+}