FModel/FModel/Resources/picking.vert

#version 460 core

layout (location = 1) in vec3 vPos;
layout (location = 7) in vec4 vBoneIds;
layout (location = 8) in vec4 vBoneWeights;
layout (location = 9) in mat4 vInstanceMatrix;
layout (location = 13) in vec3 vMorphTargetPos;

layout(std430, binding = 1) buffer BoneMatrices
{
    mat4 uFinalBonesMatrix[];
};

uniform mat4 uView;
uniform mat4 uProjection;
uniform float uMorphTime;

void main()
{
    vec4 bindPos = vec4(mix(vPos, vMorphTargetPos, uMorphTime), 1.0);

    vec4 finalPos = vec4(0.0);
    if (vBoneIds != vBoneWeights)
    {
        for(int i = 0 ; i < 4; i++)
        {
            int boneIndex = int(vBoneIds[i]);
            if(boneIndex < 0) break;

            finalPos += uFinalBonesMatrix[boneIndex] * bindPos * vBoneWeights[i];
        }
    }
    else finalPos = bindPos;

    gl_Position = uProjection * uView * vInstanceMatrix * finalPos;
}