Manage shader-challenge: Compile diffuse per pixel shader

Challenge: Compile diffuse per pixel shader

As a small challenge to be more familiar with shader, you can write a simple diffuseperpixel shader, which works in the same way as specularper pixel shader, but eliminates the mirror reflection. Diffuseperpixel is usually used in non-glossy materials. To switch specularperpixel and diffuseperpixel, you should create two technique types in the simpleshader. FX file.

Add the followingCodeThen, you can use the space key to dynamically switch between specularperpixel and diffuseperpixel:

If (input. keyboard. iskeydown (Keys. Space) effect. currenttechnique = effect. techniques ["diffuseperpixel"]; else effect. currenttechnique = effect. techniques ["specularperpixel"];