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Krzosa Karol
2022-07-27 12:27:31 +02:00
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README.md
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@@ -1,6 +1,8 @@
# Realtime Software Renderer # Realtime Software Renderer
Optimized realtime software renderer. I tried to optimize it so that it can render Sponza Palace at 30fps on my machine. It uses multithreading and vector/SIMD instructions.
![screenshot1](assets/Screenshot1.png) ![screenshot1](assets/Screenshot1.png)
![screenshot2](assets/Screenshot2.png) ![screenshot2](assets/Screenshot2.png)
@@ -20,7 +22,7 @@ The inner loop of the rasterization is fully vectorized using AVX, AVX2 and FMA
## Multithreading ## Multithreading
Rendered image is split to tiles, each thread gets one tile to render. To synchronize work between threads a simple work queue is implemented. It only uses atomic operations and semaphores to distribute work. Work queue is implemented in one producer, multiple consumers architecture. Rendered image is split to tiles, each thread gets one tile to render. To synchronize work between threads a simple work queue is implemented. It only uses atomic operations and semaphores to distribute work. Work queue is implemented in one producer, multiple consumers architecture.
## Clipping ## Clipping
@@ -40,6 +42,12 @@ Last clipping stage is performed in the 2D image space. Every triangle has a cor
box. In this box every pixel gets tested to see if it's in the triangle. In this clipping stage box. In this box every pixel gets tested to see if it's in the triangle. In this clipping stage
the box is clipped to the image metrics - 0, 0, width, height. the box is clipped to the image metrics - 0, 0, width, height.
## Building
1. Download Visual Studio and Clang
1. Run build.bat
1. Executable requires a specific Sponza obj + textures and it's not bundled with the repository, it's too big(500mb), repository is only for showcase, if someone actually wants to run this you can PM me but I doubt that anyone would want to run this...
### Things to do: ### Things to do:
- [x] Drawing triangles - [x] Drawing triangles
@@ -79,6 +87,7 @@ the box is clipped to the image metrics - 0, 0, width, height.
- [x] Simple test z clipping - [x] Simple test z clipping
- [x] Maybe should clip a triangle on znear zfar plane? - [x] Maybe should clip a triangle on znear zfar plane?
- [x] Maybe should clip out triangles that are fully z out before draw_triangle - [x] Maybe should clip out triangles that are fully z out before draw_triangle
- [ ] Proper infrustructure for transparent textures - sorting before rendering
- [ ] Effects!!! - [ ] Effects!!!
- [ ] Outlines - [ ] Outlines
- [ ] Lightning - [ ] Lightning