Shaders with specular light and procedural bump

[scalion]

Bonjour à tous, Voilà qui est fait !

On peut utiliser des shaders avec GFA-Basic 32, et comme l'a déjà bien dit (X) ca ouvre pas mal de portes.

Voici une petite de démo avec de la 3D : Shaders.G32 (41.56 KB)

Je ferais peut-être une librairie pour simplifier tout ça.

Si vous avez la chance d'avoir une bonne carte graphique vous devrier obtenir ceci :

US : Hello everyone,That's done !
You can use shaders with GFA-Basic 32, and as (X) already said, it opens a lot of doors.
Here is a little demo with 3D: Shaders.G32 (41.56 KB)

I might make a library to simplify all that.

If you are lucky enough to have a good graphics card you should get this:

[(X)]

This is definitely a date to be celebrated: 2024.01.22!

Bravo scalion!

This is going straight to YouTube! youtu.be/dkj9mwp4Ezw

[Roger Cabo]

Yes this is really great!!!

How does the shader was written and compiled.. and what format it own to load into GB32?
I wrote a lot shaderlap shaders unity. Mostly vertex and surf shaders.

perhaps anytime it possible to write a shader compiler.. like shadertoy.com editor does..

Anyway, amazing job!! Scalion!!!

[(X)]

A lot of this is new to me.

Until scalion showed us his demo, I didn't even think it was possible to write OpenGL Shaders from inside GB32.  At the very least, it seems to be a way to speed up computations considerably.  I imagine this is a "game changer" (pun intended) for GB32 coders that want to develop PC Games written entirely* in GFA-BASIC 32 for Windows.

* Except for the Shader code itself.

I asked BING: How is the OpenGL shader code compiled?

The compilation of OpenGL shader code involves a two-stage process similar to the standard compile/link setup for C and C++ source code¹².

1. **Shader Compilation**: This is the process by which OpenGL Shading Language scripts are loaded into OpenGL to be used as shaders¹. Shader text is first fed through a compiler, producing a shader object¹². The function `glCreateShader (GLenum shaderType​ )` is used to create an empty shader object for the shader stage given by `shaderType​`¹. The shader type must be one of `GL_VERTEX_SHADER`, `GL_TESS_CONTROL_SHADER`, `GL_TESS_EVALUATION_SHADER`, `GL_GEOMETRY_SHADER`, `GL_FRAGMENT_SHADER`, or `GL_COMPUTE_SHADER`¹.

2. **Program Linking**: To get the executable program object, one or more shader objects must be linked together¹². A Program Object can contain the executable code for all of the Shader stages¹.

The function `glCompileShader` compiles the source code strings that have been stored in the shader object³. The compilation status will be stored as part of the shader object's state. This value will be set to `GL_TRUE` if the shader was compiled without errors and is ready for use, and `GL_FALSE` otherwise³.

In most games, shaders are first compiled from text-based source code to a hardware-independent binary intermediate language⁴. This produces binary blobs which can be shipped with the game⁴.

Please note that this is a high-level overview of the process. For more detailed information, you may want to refer to the [OpenGL Wiki](^1^) or other OpenGL resources..

Source: Conversation with Bing, 2024-01-22
(1) Shader Compilation - OpenGL Wiki - The Khronos Group. www.khronos.org/opengl/wiki/Shader_Compilation.
(2) LearnOpenGL - Shaders. learnopengl.com/Getting-started/Shaders.
(3) GLAPI/glCompileShader - OpenGL Wiki - The Khronos Group. www.khronos.org/opengl/wiki/GlCompileShader.
(4) Which part of the rendering pipeline compiles shaders?. gamedev.stackexchange.com/questions/159201/which-part-of-the-rendering-pipeline-compiles-shaders.
(5) Shader Compilation - OpenGL Wiki - The Khronos Group. www.khronos.org/opengl/wiki/Shader_Compilation.
(6) en.wikipedia.org. en.wikipedia.org/wiki/Shader.