Diff of Mesh shader - WarmeY2K - A complete, fast and fun game engine for the web

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Deleting diff of Mesh shader
#author("2024-07-29T22:25:00+00:00","default:J4Y","J4Y")
#author("2024-07-29T22:25:12+00:00","default:J4Y","J4Y")
* Shader customization [#xfcc3915]
The mesh shader is customizable with four global variables (window object).
| ''Variables''                     | ''Description''                             | Type          |
| ''Variables''                     | ''Description''                             | ''Type''      |
| --------------------------------- | ------------------------------------------- | ------------- |
| __MESH_SCENE_SLOT_NAMES__         | The scene custom slot names                 | Array<string> |
| __MESH_MATERIAL_SLOT_NAMES__      | The material custom slot names              | Array<string> |
| __MESH_VERT_BEGIN__               | Insert code at begin of vertex shader.      | string        |
| __MESH_VERT_END__                 | Insert code at end of vertex shader         | string        |
| __MESH_VERT_OUT_POSITION__        | Replace vertex output position              | string        |
| __MESH_VERT_OUT_FRAG_POS__        | Replace vertex output world position        | string        |
| __MESH_VERT_OUT_FRAG_UV__         | Replace vertex output uv                    | string        |
| __MESH_VERT_OUT_FRAG_COLOR__      | Replace vertex output color                 | string        |
| __MESH_VERT_OUT_FRAG_NORMAL__     | Replace vertex output normal                | string        |
| __MESH_VERT_OUT_FRAG_TANGENT__    | Replace vertex output tangent               | string        |
| __MESH_VERT_OUT_FRAG_BINORMAL__   | Replace vertex output binormal              | string        |
| __MESH_VERT_OUT_FRAG_SHADOW_POS__ | Replace vertex output shadow map position   | string        |
| --------------------------------- | ------------------------------------------- | ------------- |
| __MESH_FRAG_BEGIN__               | Insert code at begin of fragment shader     | string        |
| __MESH_FRAG_END__                 | Insert code at end of fragment shader       | string        |
| __MESH_FRAG_PRE_TEXTURE__         | Insert code before custom texture access    | string        |
| __MESH_FRAG_POST_TEXTURE__        | Insert code after custom texture access     | string        |
| __MESH_FRAG_OUT_BASE__            | Replace fragment output color (color buf)   | string        |
| __MESH_FRAG_OUT_NORMAL__          | Replace fragment output normal (normal buf) | string        |
| __MESH_FRAG_OUT_ID__              | Replace fragment output id (id buf)         | string        |

Create a ''shader.ts'' file at the same level of your ''main.ts''.~
Set variables of your choices and import the script in ''index.html'' on top of ''main.ts''.~
By this way all these variables are set before the engine start and by extension before the shader program compilation start.

* Table vertex vars [#aff0abca]
| ''Variables''  | ''Scope'' | ''Type''     | ''Description''                               | ''BEGIN''    | ''END''      |
| -------------  | ------- | -------------- | --------------------------------------------- | ------------- | -------------- |
| position       | Var     | vec3           | Vertex position                               |BGCOLOR(green):|BGCOLOR(green):|
| texUV          | Var     | vec2           | Vertex uv                                     |BGCOLOR(green):|BGCOLOR(green):|
| color          | Var     | vec3           | Vertex color                                  |BGCOLOR(green):|BGCOLOR(green):|
| normal         | Var     | vec3           | Vertex normal                                 |BGCOLOR(green):|BGCOLOR(green):|
| tangent        | Var     | vec3           | Vertex tangent                                |BGCOLOR(green):|BGCOLOR(green):|
| binormal       | Var     | vec3           | Vertex binormal                               |BGCOLOR(green):|BGCOLOR(green):|
| posFromLight   | Var     | vec4           | Vertex position from light source shadow-map  |BGCOLOR(red):|BGCOLOR(green):|
| output         | Var     | VertexOutput   | The vertex shader output                      |BGCOLOR(red):|BGCOLOR(red):|
| -------------  | ------- | -------------- | --------------------------------------------- | ------------- | -------------- |
| LVP_MATRIX     | Uniform | mat4x4         | Light view projection (shadow-map)            |BGCOLOR(green):|BGCOLOR(green):|
| SCENE_INFOS    | Uniform | SceneInfos     | Various scene informations                    |BGCOLOR(green):|BGCOLOR(green):|
| MESH_INFOS     | Uniform | MeshInfos      | Contains matrices and mesh identifier         |BGCOLOR(green):|BGCOLOR(green):|
| MAT_PARAMS     | Uniform | MaterialParams | List of float material parameters             |BGCOLOR(green):|BGCOLOR(green):|

* Table fragment vars [#j60e0591]
| ''Variables''                | ''Scope''   | ''Type''           | ''Description''                   | ''BEGIN''    | ''END''      |
| ------------------------ | ------- | -------------- | --------------------------------------------- | ------------- | -------------- |
| fragPos                  | Var    | vec3           | Pixel world position                           |BGCOLOR(green):|BGCOLOR(green):|
| fragUV                   | Var    | vec2           | Texture uv                                     |BGCOLOR(green):|BGCOLOR(green):|
| fragColor                | Var    | vec3           | color                                          |BGCOLOR(green):|BGCOLOR(green):|
| fragNormal               | Var    | vec3           | normal                                         |BGCOLOR(green):|BGCOLOR(green):|
| fragTangent              | Var    | vec3           | tangent                                        |BGCOLOR(green):|BGCOLOR(green):|
| fragBinormal             | Var    | vec3           | binormal                                       |BGCOLOR(green):|BGCOLOR(green):|
| fragShadowPos            | Var    | vec3           | shadow direction                               |BGCOLOR(green):|BGCOLOR(green):|
| normalUV                 | Var    | vec3           | normal uv                                      |BGCOLOR(green):|BGCOLOR(green):|
| outputColor              | Var    | vec4           | Output color (default: 0, 0, 0, 1)             |BGCOLOR(green):|BGCOLOR(green):|
| texel                    | Var    | vec4           | Texel color (default: 1, 1, 1, 1)              |BGCOLOR(green):|BGCOLOR(green):|
| textureUV                | Var    | vec2           | Texture uv after scrolling                     |BGCOLOR(red):|BGCOLOR(green):|
| shadow                   | Var    | float          | Shadow-map factor                              |BGCOLOR(red):|BGCOLOR(green):|
| matS0                    | Var    | vec4           | Texel from free material texture 0             |BGCOLOR(red):|BGCOLOR(green):|
| matS1                    | Var    | vec4           | Texel from free material texutre 1             |BGCOLOR(red):|BGCOLOR(green):|
| s0                       | Var    | vec4           | Texel from free texture 0                      |BGCOLOR(red):|BGCOLOR(green):|
| s1                       | Var    | vec4           | Texel from free texture 1                      |BGCOLOR(red):|BGCOLOR(green):|
| output                   | Var    | FragOutput     | The fragment shader output                     |BGCOLOR(red):|BGCOLOR(red):|
| ------------------------ | ------- | -------------- | --------------------------------------------- | ------------- | -------------- |
| MESH_INFOS               | Uniform | MeshInfos      | Contains matrices and mesh identifier         |BGCOLOR(green):|BGCOLOR(green):|
| SCENE_INFOS              | Uniform | SceneInfos     | Various scene informations                    |BGCOLOR(green):|BGCOLOR(green):|
| DIR_LIGHT                | Uniform | DirLight       | Directionnal light informations               |BGCOLOR(green):|BGCOLOR(green):|
| POINT_LIGHTS             | Uniform | PointLight[]   | Point light list                              |BGCOLOR(green):|BGCOLOR(green):|
| SPOT_LIGHTS              | Uniform | SpotLight[]    | Spot light list                               |BGCOLOR(green):|BGCOLOR(green):|
| DECALS                   | Uniform | Decal[]        | Decal list                                    |BGCOLOR(green):|BGCOLOR(green):|
| FOG                      | Uniform | Fog            | Fog informations                              |BGCOLOR(green):|BGCOLOR(green):|
| MAT_COLORS               | Uniform | MaterialColors | Material colors (ambiant, diffuse, etc...)    |BGCOLOR(green):|BGCOLOR(green):|
| MAT_PARAMS               | Uniform | MaterialParams | Material parameters for some settings         |BGCOLOR(green):|BGCOLOR(green):|
| MAT_UVS                  | Uniform | MaterialUvs    | Material uv scrolling                         |BGCOLOR(green):|BGCOLOR(green):|
| MAT_TOON_LIGHT_DIR       | Uniform | vec3           | Material toon light direction                 |BGCOLOR(green):|BGCOLOR(green):|
| MAT_TEXTURE              | Uniform | Texture        | Color texture                                 |BGCOLOR(green):|BGCOLOR(green):|
| MAT_DISPLACEMENT_TEXTURE | Uniform | Texture        | Displace the color texture                    |BGCOLOR(green):|BGCOLOR(green):|
| MAT_DIFFUSE_TEXTURE      | Uniform | Texture        | Diffuse color texture                         |BGCOLOR(green):|BGCOLOR(green):|
| MAT_SPECULAR_TEXTURE     | Uniform | Texture        | Specular texture (color and specularity)      |BGCOLOR(green):|BGCOLOR(green):|
| MAT_EMISSIVE_TEXTURE     | Uniform | Texture        | Emissive color texture                        |BGCOLOR(green):|BGCOLOR(green):|
| MAT_NORM_TEXTURE         | Uniform | Texture        | Normal map texture                            |BGCOLOR(green):|BGCOLOR(green):|
| MAT_ENV_MAP_TEXTURE      | Uniform | Texture        | Env map texture                               |BGCOLOR(green):|BGCOLOR(green):|
| MAT_TOON_TEXTURE         | Uniform | Texture        | Toon details texture                          |BGCOLOR(green):|BGCOLOR(green):|
| MAT_S0_TEXTURE           | Uniform | Texture        | Free material texture 0                       |BGCOLOR(green):|BGCOLOR(green):|
| MAT_S1_TEXTURE           | Uniform | Texture        | Free material texture 1                       |BGCOLOR(green):|BGCOLOR(green):|
| DECAL_ATLAS_TEXTURE      | Uniform | Texture        | Decals texture                                |BGCOLOR(green):|BGCOLOR(green):|
| DECAL_ATLAS_TEXTURE      | Uniform | Texture        | Decals texture                                |BGCOLOR(green):|BGCOLOR(green):|
| SHADOW_MAP_TEXTURE       | Uniform | Texture        | Shadow map texture                            |BGCOLOR(green):|BGCOLOR(green):|
| S0_TEXTURE               | Uniform | Texture        | Free texture 0                                |BGCOLOR(green):|BGCOLOR(green):|
| S1_TEXTURE               | Uniform | Texture        | Free texture 1                                |BGCOLOR(green):|BGCOLOR(green):|

* What about new uniforms ? [#xfcc3915]
For numeric there is:
- 16 built-in floats available in ''MAT_PARAMS'' from ''S00'' to ''S15'' you can set by '''Gfx3Material.setCustomParam'''.
- 16 built-in floats available in ''SCENE_INFOS'' from ''S00'' to ''S15'' you can set by '''Gfx3MeshRenderer.setCustomParam'''.

About texture there is:
- 2 built-in texture available in ''MAT_S0_TEXTURE'' and ''MAT_S1_TEXTURE'' you can set by '''Gfx3Material.setCustomTextures'''.
- 2 built-in texture available in ''S0_TEXTURE'' and ''S1_TEXTURE'' you can set by '''Gfx3MeshRenderer.setCustomTextures'''.