anki-3d-engine/AnKi/Shaders/ForwardShadingFog.ankiprog

// Copyright (C) 2009-2021, Panagiotis Christopoulos Charitos and contributors.
// All rights reserved.
// Code licensed under the BSD License.
// http://www.anki3d.org/LICENSE

struct PerDraw
{
	Mat4 m_ankiMvp;
	Mat4 m_ankiModelViewMatrix;
	Vec3 m_fogColor;
	F32 m_fogAlphaScale;
	F32 m_fogDistanceOfMaxThikness;
};

layout(set = 1, binding = 0, row_major) uniform b_ankiPerDraw
{
	PerDraw u_ankiPerDraw;
};

#pragma anki start vert
#include <AnKi/Shaders/ForwardShadingCommonVert.glsl>

layout(location = 0) out F32 out_zVSpace;

void main()
{
	gl_Position = u_ankiPerDraw.m_ankiMvp * Vec4(in_position, 1.0);
	out_zVSpace = (u_ankiPerDraw.m_ankiModelViewMatrix * Vec4(in_position, 1.0)).z;
}

#pragma anki end

#pragma anki start frag
#include <AnKi/Shaders/ForwardShadingCommonFrag.glsl>

layout(location = 0) in F32 in_zVSpace;

void main()
{
	fog(u_ankiPerDraw.m_fogColor, u_ankiPerDraw.m_fogAlphaScale, u_ankiPerDraw.m_fogDistanceOfMaxThikness, in_zVSpace);
}
#pragma anki end