{
/**
+ * @brief Creates a new Alpha discard effect
+ *
* Alpha discard effect is used to discard fragments when the alpha colour value is below a threshold.
* This is useful for stenciling.
*
* Usage example:
*
* ImageActor actor = ImageActor::New( Image( EXAMPLE_IMAGE_PATH ) );
- * AlphaDiscardEffect alphaDiscardEffect = AlphaDiscardEffect::New();
+ * ShaderEffect alphaDiscardEffect = CreateAlphaDiscardEffect();
* actor.SetShaderEffect( alphaDiscardEffect );
+ *
+ * @return A handle to a newly allocated ShaderEffect.
*/
-class DALI_IMPORT_API AlphaDiscardEffect : public ShaderEffect
+inline ShaderEffect CreateAlphaDiscardEffect()
{
-public:
-
- /**
- * Create an empty AlphaDiscardEffect handle.
- */
- AlphaDiscardEffect();
-
- /**
- * @brief Destructor
- *
- * This is non-virtual since derived Handle types must not contain data or virtual methods.
- */
- ~AlphaDiscardEffect();
-
- /**
- * Create a AlphaDiscardEffect.
- * @return A handle to a newly allocated AlphaDiscardEffect.
- */
- static AlphaDiscardEffect New();
-
-private: // Not intended for application developers
+ const char* ALPHA_DISCARD_FRAGMENT_SHADER_SOURCE =
+ "void main() \n"
+ "{ \n"
+ " mediump vec4 color = texture2D( sTexture, vTexCoord ); \n"
+ " if(color.a <= 0.0001) \n"
+ " { \n"
+ " discard; \n"
+ " } \n"
+ " gl_FragColor = color * uColor; \n"
+ "} \n";
- DALI_INTERNAL AlphaDiscardEffect( ShaderEffect handle );
-};
+ return ShaderEffect::New( "", // Use default
+ ALPHA_DISCARD_FRAGMENT_SHADER_SOURCE );
+}
} // namespace Toolkit