This redesign allows more flexibility when creating RenderTexture and a simplification (and hopefully removal) of `GenTexture*()` functions, that should not belong to this model but the user code, due to the use of custom shaders.
Also, this new API opens the door for a possible GBuffers type and advance rendering possibilities...
Some functions of the API have been also simplified or even removed.
rlgl module can be used as an standalone library, so, a version for the library has been added: v3.1.0, matching current raylib version.
Before deleting certain objects, they must be detached from their parents. That's the case for shader objects after linkage to shader program and also for the texture/cubemaps/renderbuffers attached to framebuffers. If objects are deleted before detached, they are kept in memory to avoid accessing deleted data.
rlBlendMode() has been added to rlgl to be used on BLEND_CUSTOM. This functionality is exposed to advance users.
In any case, new blending modes could be added if required.
Most warning were related to types conversion (casting required) and unsigned/signed types comparisons.
Added preprocessor directives (_CRT_SECURE_NO_DEPRECATE; _CRT_NONSTDC_NO_DEPRECATE) to avoid warnings about unsafe functions, those functions are safe while used properly and recommended alternatives are MS only.
Some external libraries still generate warnings.
Created RenderBatch type and related functions to allow rlgl users creating custom and separate render batches and not only rely on one internal render batch.
This feature has not been exposed on raylib yet because it implies some breaking changes. Right now a custom RenderBatch is just used internally in rlgl.
There are multiple #define values around raylib, usually not exposed for redefinition, just reviewed all of them to allow users redefining them on compile time if required.
Also, multiple #define have been renamed and commented.
* First draft of UWP rework.
* Read desc
- Moved UWP specific functions to uwp_events.h
- Removed BaseApp.
- Implemented example UWP lifecycle.
* Added GIF recording and screenshot support.
* Character inputs and filesystem stuff
* Fix game closing on Xbox when B is pressed.
* Fix the gamepad binding hack
* Add as many keys as I believe are possible.
* Implemented mouse locking of a sort.
* Remove rogue todo, the rest are for a game dev using this example.
* Implemented touch how I "think" it should work. I cant test this.
* Review.
Just for clarification, no plans to remove libc dependency, just did some code analysis to see how much raylib depend on stardard C library. My conclusions:
- stdlib.h: primary dependency is for malloc() and free()
- stdio.h: primary dependency is for FILE access, maybe it could go through a custom ABI?
- string.h: just around 8 functions required
- math.h: just around 8 functions required
- others: 1-2 functions required for some other headers
- Mesh, Shader, Material structs have been reviewed to minimize size when passed by value, all required code has been reviewed.
- GetCollisionRayModel() reviewed to avoid pointer, not required because model is not modified inside the function
- UnloadMesh() reviewed, pointer not required
- CheckCollisionRay*() parameters name reviewed
* Working build
* Fix build again, stop deleting files
* Hotfix crash, needs investigating
* Remove VS2015.UWP, I cannot update the project
* Lots of UWP work, added keyboard and mouse press support. Still need to finish scroll wheel, mouse position and cursor hiding, plus other stuff that I haven't seen yet.
* Implemented a ton more things, added BaseApp.h to provide common code to UWP apps.
* Remove constant window dimensions
* Enable and Disable cursor support.
* Actually use mouse delta
* Gamepad Support
* Cleaning and small tweaks
* Restore original example.
* Update comment
* Use 'Messages' to handle the cursor functions so code is more portable.
* Comment
* Comment unused message fields and use vector for mouse pos instead.
* Move messages to utils.h and use messages for everything. No more plat-specific code in raylib.h
* Working build
* Fix build again, stop deleting files
* Hotfix crash, needs investigating
* Remove VS2015.UWP, I cannot update the project
* Lots of UWP work, added keyboard and mouse press support. Still need to finish scroll wheel, mouse position and cursor hiding, plus other stuff that I haven't seen yet.
* Implemented a ton more things, added BaseApp.h to provide common code to UWP apps.
* Remove constant window dimensions
* Enable and Disable cursor support.
* Actually use mouse delta
* Gamepad Support
* Cleaning and small tweaks
* Restore original example.
* Update comment
* Use 'Messages' to handle the cursor functions so code is more portable.
* Comment
* Comment unused message fields and use vector for mouse pos instead.
* Move messages to utils.h and use messages for everything. No more plat-specific code in raylib.h
* Tested some desktop stuff and added projection matrix updates for window resizing.
* Fixed big bad mouse bug
* Fix alt buttons and add hack to combat flickery key presses (far from perfect)
* Remove debug code
* Final commit
* Well, so I thought
* Wow, i am bad
* Remove packages folder
* Remove useless include
* Apply requested changes and fix linux build
* Try to stop packages folder
* Have we fixed the formatting properly?
* Third time's the charm?
* Where did this come from?
* Re-fix
* Autoformat is gonna kill
* Fixed XBOX ONE Support
* Fix tabs
Found some issues when building for web using latest emscripten 1.38.30, traced the error and found that eglGetProcAdress does not return function pointers for VAO functionality, supported by extension.
It requires more investigation but now it works (avoiding VAO usage)
Users can define their custom memory management macros.
NOTE: Most external libraries support custom macros in the same way, raylib should redefine those macros to raylib ones, to unify custom memory loading. That redefinition is only implemented as example for stb_image.h in [textures] module.
Issue was related to vertex tangent attibutes not uploaded to GPU, a quick solution was implemented for new vertex attributes loading for already existing meshes... I don't like it specially but it will work for now.
If we have no data to update/draw, we avoid update/draw. On `DrawBuffersDefault()` if no vertes data is available nothing is drawn but some globals: vertexData, projection, modelview, draws... are reseted.
There shouldn't be any problem if we don't touch those globals in case no vertex have been processed but, just in case, I warn about it.
When drawing LINES or TRIANGLES, vertex are accumulated in same buffer as QUADS and new draw calls are registered but QUADS drawing uses an index buffer for optimization, so, when adding LINES/TRIANGLES vertices we need to make sure next draw calls for QUADS keep aligned with indices buffer.
To get that we just add some alignment vertex at the end of the LINES/TRIANGLES draw calls, to make them multiple of 4 vertex.
When capturing framebuffer, if some element with transparency has been drawn, it retrieves that data... it could be a bit annoying in some situations because we could expect color compositing with background color... It depends on the situation and our needs... but most of the time we don't want that transparency on screenshots.
Specific textures generation code is quite redundant and not flexible for the user, I'm trying to figure out some easy way to allow raylib users to do the same without needing those functions (very specific and shader dependant). RenderTexture loading and Cubemap textures support must be improved.
Problem aligning provided vertex data to multiples of four, because main buffer is intended to bu used with indexed quads... but also shared with triangles and lines.
This commit implements a big update of rlgl module, intended to optimize some parts. This change could break some code bases... hopefully not, but it could.
The BIG changes to the module are:
- Replaced LINES-TRIANGLES-QUADS buffers by a single one, now all vertex data is accumulated on a single buffer and managed with registered draw calls. LINES-TRIANGLES-QUADS could be used the same way as before, rlgl will manage them carefully. That's a big improvement of the system.
- Support multi-buffering if required. Just define MAX_BATCH_BUFFERING desired size (currently set to 1 batch). Should be enough for most of the situations.
- Removed temporal accumulative buffers for matrix transformations, now transformations are directly applied to vertex when on rlVertex3f()
- Reviewed rlPushMatrix()/rlPopMatrix() to be consistent with OpenGL 1.1, probably I should remove that ancient behaviour but... well, it was not consistent and now it is.
- Minor tweaks: LoadText(), I broke it in last update... also multiple comments reviewed.
- TODO: MAX_BATCH_ELEMENTS checking should probably be reviewed... done some tests and it works but...
When a batch reach its vertex limit, a draw call is issued and batch restarted for refilling but if the draw call was issued for vertex data accumulated inside rlPushMatrix/rlPopMatrix, draw call was issued before the rlPopMatrix, consequently modelview matrix was not properly recovered before the draw call... obviously, it only happened the following draw calls, not the first one...
Now it works ok but this system needs to reviewed, noticed and important frames drop when processing around 20 dynamic batch draw calls, it means filling MAX_QUADS_BATCH (8192) quads of data 20 times per frame, including data updating and sending for draw processing.
Doing some maths, it means:
Vertex data (float) -----> 8192 quads * 4 vertex * 3 comp * 4 byte = 393216 bytes
Texcoords data (float) -> 8192 quads * 4 vertex * 2 comp * 4 byte = 262144 bytes
Color data (uchar) -----> 8192 quads * 4 vertex * 4 comp * 1 byte = 131072 bytes
Thats a total of 786432 bytes (0.75MB) sent to GPU 20 times per frame for processing... I'm testing in an Intel HD Graphics integrated, I imagine is too much data to be sent and and it causes stalls, so the frames drop...
This change allows rlgl.h usage as independent single-file header-only module... still some tweaks required, like removing GLAD dependency... required extensions could be manually loaded!
Also removed shader_distortion.h, embedded in rlgl.h
That way, a user needs only to touch a single file to configure what
features raylib is built with.
Include guards are left out intentionally, because config.h should only
be included in source files, not headers.
Later on, config.h can also define the raylib version (#461).
- Renamed enum TextureFormat to PixelFormat for consistency
- Added support for pixel format UNCOMPRESSED_R32
- Using GetPixelDataSize() where required
...to avoid dynamic conditions on for loop (lightsCount) on standard
shader, it seems GLSL 100 doesn't support that feature... on some GPUs
like RaspberryPi...
- 3 light types added (point, directional, spot).
- DrawLights() function added using line shapes.
- Standard lighting example added.
- Removed useless struct variables from material and light.
- Fixed light attributes dynamic locations errors.
- Standard vertex and fragment shaders temporally added until rewrite it
as char pointers in rlgl.
TODO:
- Add normal and specular maps calculations in standard shader.
- Add control structs to handle which attributes needs to be calculated
(textures, specular...).
- Adapt standard shader to version 110.
- Rewrite standard shader as char pointers in rlgl.
- Renamed some functions for consistency (default buffers)
- Removed mystrdup() function (implemented inline)
- Renamed TextFileRead() to ReadTextFile()
- New model and view transformation matrix added, useful for shaders.
Modelview matrix not deleted to keep opengl 1.1 pipeline compatibility.
- New extra function added DrawModelWiresEx() to set a rotation and
scale transformations to a wire model drawing.
- Other writing and little audio.c bug fixed.
- Renamed function rlEnableFBO() -> rlEnablePostproFBO()
- Defined struct FBO
- Moved FBO creation to function: rlglLoadFBO()
- Reviewed rlglReadTexturePixels(), trying to support OpenGL ES -IN
PROGRESS-
- Camera system moved to a separate module [camera.c]
- WIP: Added customization functions for camera controls
- Added custom shaders support on batch drawing
- Complete redesign of textures module to support multiple texture
formats (compressed and uncompressed)
Moved functions: LoadShader(), UnloadShader()
Add support for PVR textures compressed/uncompressed
WIP: Detect available extensions for compressed textures
Support multiple texture formats (uncompressed and compressed)
Postprocessing shaders support
Model struct redefined and improved
Extended loading functions for Textures and Models
Simplified functions: DrawPlane(), DrawQuad()
Deleted functions: DrawPlaneEx(), DrawGizmoEx()
Now Text module only depends on Textures module
Shapes: Reviewed functions to low lines/triangles usage
Removed useless tabs and spaces around code
