I’ve run into an issue with HTML5 builds when trying to render 3d model. They output only a black screen and produce this error in web browser
It is using using the render script in the manual for 3d rendering and the built-in model.material with associated .vp and .fp files.
It works on all other builds(that I have been able to test) just not HTML5
Anyone with ideas?
(Using editor version 1.2.100)
Hmm, no idea I’m afraid. @sven, any ideas?
That’s ok! Thank you for the thought about it.
I actually just figured it out!(after googling since yesterday 
)
Working HTML5 Defold 3d BatMan Thing!
It works by making a copy of the model.material and shaders, for editing. Then changing line-8 in the fragment shader(model.fp) to this:
uniform mediump vec4 light;
That way, the uniforms are matching in both shaders. Both being set as mediump, or whatever(lowp, highp). It seems to work with any, as long as they match.
That was a good exercise for me to learn a bunch about render and shaders in Defold 
Credits to this thread at stack overflow, and the Shader Compilation section of the khronos.org wiki
Is this difference in precision intentional? The built-in model material has the uniform light as lowp in the fragment shader and mediump in the vertex shader, which makes web builds crash.
Hm, no, that sounds wrong! We should fix so they are the same in both vert and frag shaders, nice find!