Physically Based Shading on Mobile - Unreal Engine
Some texts are not shown correctly, like the ones after “First, we replace the GGX NDF with Blinn. Blinn is then approximated with a radially symmetric Phong lobe.”, I see:
“$$ \newcommand{\nv}{\mathbf{n}} \newcommand{\lv}{\mathbf{l}} \newcommand{\vv}{\mathbf{v}} \newcommand{\hv}{\mathbf{h}} \newcommand{\mv}{\mathbf{m}} \newcommand{\rv}{\mathbf{r}} \newcommand{\ndotl}{\nv\cdot\lv} \newcommand{\ndotv}{\nv\cdot\vv} \newcommand{\ndoth}{\nv\cdot\hv} \newcommand{\ndotm}{\nv\cdot\mv} \newcommand{\vdoth}{\vv\cdot\hv} D_{Blinn}(\hv) = \frac{1}{ \pi \alpha^2 } (\ndoth)^{ \left( \frac{2}{ \alpha^2 } - 2 \right) } \approx \frac{1}{ \pi \alpha^2 } (\rv\cdot\lv)^{ \left( \frac{1}{ 2 \alpha^2 } - \frac{1}{2} \right) } $$”
I think this is TeX - Wikipedia, so how do I show them correctly?
Thanks.