So I want to drawText() on a pbr material. The way I do it right now is create Dynamic Texture, the do context.drawText() then I assign the dynamic texture to the PBR material’s Albedo Texture. The problem is that, the background of the dynamic texture is Black. I set the: texture.hasAlpha = true…

Indeed, setting transparencyMode does work but you also need to set useAlphaFromAlbedoTexture to true: https://www.babylonjs-playground.com/#7FYWYL#7

Is this getting close to what you want https://www.babylonjs-playground.com/#TMHF80#154 ?

Make sure you clear the texture with a color having alpha component = 0. I think a PG would help too.

Thank you @JohnK and @Evgeni_Popov This is my playground link writing transparent dynamic texture to pbr material I suppose the: tex.drawText('TEXT', null, null, font, '#f54242', 'transparent', true, true); will overwrite the material background color. If it is working then, it must be something…

I just realized that turning the Blend Mode into Alpha Blend from blender fix this issue. I wonder what has changed in the material properties which makes this works? Can I replicate the alpha blend by setting it from babylon js code?

Hi! Using the exact same solution on the PG, with my project tree-shaken from 7.49.0, the color does not reflect on the material. If I were to try with StandardMaterial, then background would not be transparent. It is working with 6.39.0. Do I need to import something else? Or am I missing anything…

It’s hard to tell, as this PG still works with 7.49.0. Are you able to repro the problem in the Playground?

I would but I don’t know how to reproduce tree-shaking in the Playground. But figured out something else though, when I change the roughness to 1, and metallic to 0. I started to see some results. Also tried to reduce the roughness to 0 in the PG, but it still works there. Wanted to point out I’m u…

Draw Text Dynamic Texture On PBR Material

Questions

JCPalmer July 18, 2020, 1:18pm 6

Likely

material.transparencyMode = BABYLON.PBRMaterial.PBRMATERIAL_ALPHABLEND;

How would I make a plane with transparenct background and text (dynamictexture on it)?

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Draw Text Dynamic Texture On PBR Material

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