#version 450
#pragma shader_stage(vertex)
#extension GL_EXT_shader_explicit_arithmetic_types_int64 : enable
#extension GL_EXT_buffer_reference : require

#include "bindless_structs.glsl"
#include "graphics_bindings.glsl"

layout(location=0) out vec4 outWorldNormal;
layout(location=1) out vec4 outWorldPosition;
layout(location=2) out vec4 outColor;
layout(location=3) out vec2 outUV0;

layout(push_constant) uniform Constants {
    mat4 globalTransform;
    VPositionRef pVertexPosition;
    VDataRef pVertexData;
    uint64_t materialIdx;
};

void main() {
    vec3 colors[] = {
        vec3( 1.0f, 0.0f, 0.0f ),
        vec3( 0.0f, 1.0f, 0.0f ),
        vec3( 0.0f, 0.0f, 1.0f ),
    };

    outWorldNormal = vec4(normalize(transpose(inverse(mat3(globalTransform))) * pVertexData.Data[gl_VertexIndex].Normal.xyz), 0.0f);

    outWorldPosition = globalTransform * vec4(pVertexPosition.Positions[gl_VertexIndex].xyz, 1.0f);
    gl_Position = camera.m_Projection * camera.m_View * outWorldPosition;
    outColor = vec4(pVertexData.Data[gl_VertexIndex].Color.rgb, 1.0f); //vec3(colors[gl_VertexIndex % 3]);
    outUV0 = pVertexData.Data[gl_VertexIndex].TexCoord0;
}