Extend README to describe ch10_ltc and ch11_ssao.

Author: Adnn

README.md

@@ -6,8 +6,30 @@ Prototypes developed while reading RTR 4th edition.
 
 The repository contains several standalone applications demonstrating real-time rendering techniques.
 
+### ch11_ssao
+
+Implement Screen-Space Ambient Occlusion (SSAO) in a viewer supporting PBR shading and image-based lighting (IBL).
+The scene is highly customizable via a GUI.
+
+Two SSAO variants are provided, both with optional bilateral filtering:
+* Spherical sampling (_Crytek_).
+* [Normal-oriented hemispherical sampling](https://john-chapman-graphics.blogspot.com/2013/01/ssao-tutorial.html), with optional importance sampling.
+
+[![ssao_ibl_split](https://adnn.github.io/assets/rtr_prototypes/ch11_ssao/rtr_11-diagonal-ao_shade-864.png)](https://adnn.github.io/assets/rtr_prototypes/ch11_ssao/rtr_11-diagonal_ao_shade-1920.jpg)
+
+
+### ch10_ltc
+
+Implement [Linearly Transformed Cosines](https://eheitzresearch.wordpress.com/415-2/) (LTC) for shading with polygonal-light.\
+
+LTCs accurately approximate common BRDFs, such as GGX.
+The integration of an LTC with a polygonal light is analytic and exact.
+Computational cost scales linearly with the number of light edges.
+
+[![ltc_colored_lights-clay](https://adnn.github.io/assets/rtr_prototypes/ch10_ltc/colored_scene-clay-864.png)](https://adnn.github.io/assets/rtr_prototypes/ch10_ltc/colored_scene-clay.jpg)
+
 ### ch10_area_lights
 
 Implement sphere lights and tube lights with fast approximations, such as most-representative point.
 
-[![area-lights roughness scale](https://adnn.github.io/assets/shared/area_lights-roughness_variations-864_646.jpg)](https://adnn.github.io/assets/shared/area_lights-roughness_variations.jpg)
+[![area-lights roughness scale](https://adnn.github.io/assets/rtr_prototypes/ch10_area_lights/area_lights-roughness_variations-864_646.jpg)](https://adnn.github.io/assets/rtr_prototypes/ch10_area_lights/area_lights-roughness_variations.jpg)