80 lines
No EOL
2.5 KiB
HLSL
80 lines
No EOL
2.5 KiB
HLSL
#include "normal.hlsl"
|
|
#include "cast.hlsl"
|
|
#include "ao.hlsl"
|
|
#include "softShadow.hlsl"
|
|
#include "../shadingData/new.hlsl"
|
|
|
|
/*
|
|
contributors: Patricio Gonzalez Vivo
|
|
description: |
|
|
Material Constructor. Designed to integrate with GlslViewer's defines https://github.com/patriciogonzalezvivo/glslViewer/wiki/GlslViewer-DEFINES#material-defines
|
|
use:
|
|
- void raymarchMaterial(in <float3> ro, in <float3> rd, out material _mat)
|
|
- material raymarchMaterial(in <float3> ro, in <float3> rd)
|
|
options:
|
|
- LIGHT_POSITION: in glslViewer is u_light
|
|
- LIGHT_DIRECTION
|
|
- LIGHT_COLOR
|
|
- RAYMARCH_AMBIENT
|
|
- RAYMARCH_SHADING_FNC(RAY, POSITION, NORMAL, ALBEDO)
|
|
license:
|
|
- Copyright (c) 2021 Patricio Gonzalez Vivo under Prosperity License - https://prosperitylicense.com/versions/3.0.0
|
|
- Copyright (c) 2021 Patricio Gonzalez Vivo under Patron License - https://lygia.xyz/license
|
|
*/
|
|
|
|
#ifndef LIGHT_POSITION
|
|
#define LIGHT_POSITION float3(0.0, 10.0, -50.0)
|
|
#endif
|
|
|
|
#ifndef LIGHT_COLOR
|
|
#define LIGHT_COLOR float3(1.0, 1.0, 1.0)
|
|
#endif
|
|
|
|
#ifndef RAYMARCH_AMBIENT
|
|
#define RAYMARCH_AMBIENT float3(1.0, 1.0, 1.0)
|
|
#endif
|
|
|
|
#ifndef RAYMARCH_SHADING_FNC
|
|
#define RAYMARCH_SHADING_FNC raymarchDefaultShading
|
|
#endif
|
|
|
|
#ifndef FNC_RAYMARCH_DEFAULTSHADING
|
|
#define FNC_RAYMARCH_DEFAULTSHADING
|
|
|
|
float4 raymarchDefaultShading(Material m, ShadingData shadingData) {
|
|
|
|
// This are here to be access by RAYMARCH_AMBIENT
|
|
float3 worldNormal = m.normal;
|
|
float3 worldPosition = m.position;
|
|
|
|
#if defined(LIGHT_DIRECTION)
|
|
float3 lig = normalize(LIGHT_DIRECTION);
|
|
#else
|
|
float3 lig = normalize(LIGHT_POSITION - m.position);
|
|
#endif
|
|
|
|
float3 ref = reflect(-shadingData.V, m.normal);
|
|
float occ = raymarchAO(m.position, m.normal);
|
|
|
|
float3 hal = normalize(lig + shadingData.V);
|
|
float amb = saturate(0.5 + 0.5 * m.normal.y);
|
|
float dif = saturate(dot(m.normal, lig));
|
|
float bac = saturate(dot(m.normal, normalize(float3(-lig.x, 0.0, -lig.z)))) * saturate(1.0 - m.position.y);
|
|
float dom = smoothstep( -0.1, 0.1, ref.y );
|
|
float fre = pow(saturate(1.0 + dot(m.normal, -shadingData.V)), 2.0);
|
|
|
|
dif *= raymarchSoftShadow(m.position, lig);
|
|
dom *= raymarchSoftShadow(m.position, ref);
|
|
|
|
float3 env = RAYMARCH_AMBIENT;
|
|
float3 shade = float3(0.0, 0.0, 0.0);
|
|
shade += 1.30 * dif * LIGHT_COLOR;
|
|
shade += 0.40 * amb * occ * env;
|
|
shade += 0.50 * dom * occ * env;
|
|
shade += 0.50 * bac * occ * 0.25;
|
|
shade += 0.25 * fre * occ;
|
|
|
|
return float4(m.albedo.rgb * shade, m.albedo.a);
|
|
}
|
|
|
|
#endif |