RMA (MRA) textures provide Red channel for Roughness, Green channel for Metalness, and Blue channel for Ambient Occlusion.
Made changes to this example to implement this texture correctly
RMA maps store Roughness as Red channel, Metalness as Green, and Ambient occlusion as Blue.
Added functionality to use these maps for accurate pbr materials.
Lately got some compilation `errors` related, it seems GCC 14 interprets some `const`-missmatch as errors instead of warnings (as previous versions).
But in any case, I don't see why an user won't be able to operate directly over of those returned buffers; `const` adds a restriction (for security reasons?) that in my opinion is useless.
From an expert on compilers (w64devkit creator), here there are some notes I agree with:
```
No const. It serves no practical role in optimization, and I cannot recall an instance where it caught, or would have caught, a mistake. I held out for awhile as prototype documentation, but on reflection I found that good parameter names were sufficient. Dropping const has made me noticeably more productive by reducing cognitive load and eliminating visual clutter. I now believe its inclusion in C was a costly mistake.
(One small exception: I still like it as a hint to place static tables in read-only memory closer to the code. I’ll cast away the const if needed. This is only of minor importance.)
```
Ref: https://nullprogram.com/blog/2023/10/08/
This optimization works in the following ways:
1. Reduces calls to malloc to 1. Instead of needing an extra array, we
can just swap the top half with the bottom half of the one array.
2. Unroll the inner for loop and remove a condition. Unrolling loops
buys some performance wins, but the real goal was to remove the if check
and just set the alpha channel to 255.
On my hidpi arm64 laptop, I saw ~60% improvement in performance in my
debug build (29 FPS vs 47 FPS). When optimized, the gains were roughly
10% (75 FPS vs 83%).
Signed-off-by: K. Adam Christensen <pope@shifteleven.com>
* Add implementation for CORE.Window.eventWaiting on PLATFORM_DESKTOP_SDL
* Optimize GetFrameTime() reset
* Optimize FLAG_WINDOW_ALWAYS_RUN and GetFrameTime() reset for PLATFORM_DESKTOP_GLFW
* Enable FLAG_WINDOW_ALWAYS_RUN by default on PLATFORM_DESKTOP_GLFW
* Revert enabling FLAG_WINDOW_ALWAYS_RUN by default on PLATFORM_DESKTOP_GLFW
* Add implementation for FLAG_WINDOW_ALWAYS_RUN on PLATFORM_DESKTOP_SDL
* Add reset for GetFrameTime()
* Update rmodels.c
resolves segfault with missing bone weights or bone IDs
* Update rmodels.c segfault with animation and missing normals/animnormals
* correct place.
This fixes an incomplete framebuffer issue due to the use of a texture format not supported in ES 3.
This commit also adds more information on how to manage deferred rendering.
- Updating bones only once instead for each mesh.
- Updating only one `model.meshes[].boneMatrices` and then using deep copy for other meshes instead of calculating for each bone in each mesh.
**Other points:**
- Makes it a clean base/template/reference for bone updation functions. Because if using this as template then some calculations done in one mesh can affect bones in other mesh in next iteration(doubles the effect in for next mesh).
Signed-off-by: Kirandeep-Singh-Khehra <kirandeepsinghkhehra@gmail.com>
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