Silk.NET•3y ago

shaderc-moment

It's just useful to have, makes some error messages much more informative, and means you can kind of tell when someone is actively fucking up and scream at them for it.

18 Replies

TechPizza•3y ago

well, i can show you what shaderc generates;

static float4 gl_Position;
static float2 fsin_0;
static float2 TexCoords;
static float2 Position;

struct SPIRV_Cross_Input
{
    float2 Position : TEXCOORD0;
    float2 TexCoords : TEXCOORD1;
};

struct SPIRV_Cross_Output
{
    float2 fsin_0 : TEXCOORD0;
    float4 gl_Position : SV_Position;
};

void vert_main()
{
    fsin_0 = TexCoords;
    gl_Position = float4(Position.x, Position.y, 0.0f, 1.0f);
}

SPIRV_Cross_Output main(SPIRV_Cross_Input stage_input)
{
    TexCoords = stage_input.TexCoords;
    Position = stage_input.Position;
    vert_main();
    SPIRV_Cross_Output stage_output;
    stage_output.gl_Position = gl_Position;
    stage_output.fsin_0 = fsin_0;
    return stage_output;
}

static float4 gl_Position;
static float2 fsin_0;
static float2 TexCoords;
static float2 Position;

struct SPIRV_Cross_Input
{
    float2 Position : TEXCOORD0;
    float2 TexCoords : TEXCOORD1;
};

struct SPIRV_Cross_Output
{
    float2 fsin_0 : TEXCOORD0;
    float4 gl_Position : SV_Position;
};

void vert_main()
{
    fsin_0 = TexCoords;
    gl_Position = float4(Position.x, Position.y, 0.0f, 1.0f);
}

SPIRV_Cross_Output main(SPIRV_Cross_Input stage_input)
{
    TexCoords = stage_input.TexCoords;
    Position = stage_input.Position;
    vert_main();
    SPIRV_Cross_Output stage_output;
    stage_output.gl_Position = gl_Position;
    stage_output.fsin_0 = fsin_0;
    return stage_output;
}

looks like named variables to me

Redhacker2•3y ago

For me it generated matrix_1, matrix_2 vec_1... or something like that, like it came out of spirv-cross with names

TechPizza•3y ago

well, did you tell it to preserve names? 🙃

Redhacker2•3y ago

I mean, the documentation was not very good, mostly leaving it on the front page of their repo IIRC, Spirv-cross preserved names IIRC

TechPizza•3y ago

well duh, otherwise that posted code wouldn't look as pretty

Redhacker2•3y ago

In any case, I removed it because I couldn't get it working regardless. Really? I just ended up with intermittent access violation exceptions, it sucked.

TechPizza•3y ago

you could very well be getting such exceptions when e.g. opengl tried to access a uniform that you named incorrectly

Redhacker2•3y ago

Ehh no

TechPizza•3y ago

anyways, veldrid basically doesn't do any reflection checking to validate opengl names with a resource layout

Redhacker2•3y ago

This was pretty clearly from that bit of code

TechPizza•3y ago

alrighty then

Redhacker2•3y ago

I'm not great with pointers. One of the reasons I probably shouldn't go near silktouch Lol