No way to update only one element of an uniform array

[BlackMojito]

I took a quick look at the source code and it seems that we have no way to update only one element of an uniform array? Just like below..

 

• // in JavaScript at init time
• var someVec2Element0Loc = gl.getUniformLocation(someProgram, "u_someVec2[0]");
• var someVec2Element1Loc = gl.getUniformLocation(someProgram, "u_someVec2[1]");
• var someVec2Element2Loc = gl.getUniformLocation(someProgram, "u_someVec2[2]");
•  
• // at render time
• gl.uniform2fv(someVec2Element0Loc, [1, 2]); // set element 0
• gl.uniform2fv(someVec2Element1Loc, [3, 4]); // set element 1
• gl.uniform2fv(someVec2Element2Loc, [5, 6]); // set element 2

 

Well I need to hack like this...

var locs = engine.getUniforms(material.getEffect()._program, ['test1[0]']);

engine.setFloat3(locs[0], 0.0, 1.0, 0.0);

[BlackMojito]

Another problem I found was that there was no setInt() in class Engine...

[GameMonetize]

Hello, are you using the engine directly or are you using the ShaderMaterial? For the latter we can definitely add the required API for you

[BlackMojito]

4 hours ago, Deltakosh said:

Hello, are you using the engine directly or are you using the ShaderMaterial? For the latter we can definitely add the required API for you

Hi Deltakosh,

Yeah I am using ShaderMaterial, and also the CustomMaterial made by NasamiAsl. I am just hacking by using engine directly. If you add such API, that would be super cool!

Thanks 

[BlackMojito]

4 hours ago, Deltakosh said:

Hello, are you using the engine directly or are you using the ShaderMaterial? For the latter we can definitely add the required API for you

So for now if I would like to use uniform int, I should use an float instead and cast it to float in the shader (for workaround)?

[Pryme8]

 

[NasimiAsl]

https://www.babylonjs-playground.com/#UXCB15#23

for customMaterial

material.getEffect().setArray3('test1',

[ // fs vec3

0.,0.,1, // sc vec3

1,0.,0.]);

notice  array struct for vec3[2]

 

 

[GameMonetize]

Please feel free to open an issue to describe your need so I won;t forget about it

[BlackMojito]

8 hours ago, Deltakosh said:

Please feel free to open an issue to describe your need so I won;t forget about it

Sure. It is logged at https://github.com/BabylonJS/Babylon.js/issues/3432.

[GameMonetize]

Will work on it asap!