Difference between revisions of "3D Fundamentals Tutorial 9"
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* Refactoring of the <code>gfx.PutPixel(...)</code> function in <code>Pipeline.h<code> [https://youtu.be/pef2405M-os?t=2m04s 2:04] | * Refactoring of the <code>gfx.PutPixel(...)</code> function in <code>Pipeline.h<code> [https://youtu.be/pef2405M-os?t=2m04s 2:04] | ||
| − | + | :* This is where we are ultimately determining the color of the pixel | |
| − | * | + | :* Inside the PutPixel function, we want to call a shader object that defines the coloring behavior |
| + | * Implementation of the programmable pixel shader stage in the pipeline [https://youtu.be/pef2405M-os?t=3m11s 3:11] | ||
| + | :* We template the pipeline class on an <code><class Effect></code> | ||
| + | :* We will adjust the definition of the <code>Vertex</code> class depending on what effect we are using | ||
| + | :* We adjust the PutPixel call as: | ||
| + | :: | ||
* ... [https://youtu.be/pef2405M-os?t=0m20s 0:20] | * ... [https://youtu.be/pef2405M-os?t=0m20s 0:20] | ||
* ... [https://youtu.be/pef2405M-os?t=0m20s 0:20] | * ... [https://youtu.be/pef2405M-os?t=0m20s 0:20] | ||
Revision as of 19:45, 1 June 2020
In this tutorial we incorporate our first shader stage into the 3D pipeline: the pixel shader stage. We also explore some basic example pixel shaders (more heavy-duty stuff to come later).
Video
The tutorial video is on YouTube here.
- What is a Pixel Shader and why is it used? 0:20
- We want to make color mapping of the triangles in the rendering pipeline configurable
- One way is to use templated function objects (functors) as "plug-in" code
- These functors determine the color of the pixel based on their input
- Refactoring of the
gfx.PutPixel(...)function inPipeline.h<code> 2:04
- This is where we are ultimately determining the color of the pixel
- Inside the PutPixel function, we want to call a shader object that defines the coloring behavior
- Implementation of the programmable pixel shader stage in the pipeline 3:11
- We template the pipeline class on an <code><class Effect>
- We will adjust the definition of the
Vertexclass depending on what effect we are using - We adjust the PutPixel call as:
Downloads
The GitHub repository for the tutorial code is here.
