shinmai

Shader "Custom/Curved" {
	Properties {
		_MainTex ("Base (RGB)", 2D) = "white" {}
		_QOffset ("Offset", Vector) = (0,0,0,0)
		_Dist ("Distance", Float) = 100.0
	}
	SubShader {
		Tags { "RenderType"="Opaque" }
		Pass
		{

shinmai

//http://iquilezles.org/www/articles/distfunctions/distfunctions.htm
// -- Distant functions
float sdPlane( vec3 p ) {return p.y+0.2;}
float sdSphere( vec3 p, float s ) {return length(p)-s;}

float sdCylinder( vec3 p, vec3 c ){ return length(p.xz-c.xy)-c.z; }
float udRoundBox( vec3 p, vec3 b, float r ){return length(max(abs(p)-b,0.0))-r;}
float udRoundBoxInf( vec3 p, vec2 b, float r ){return length(max(vec3(abs(p.xz)-b,0.0),0.0))-r;}

float maxcomp( vec3 p ) {return max(p.x,max(p.y,p.z));}

shinmai

////////////////////////////////////////////////////////////////
//
//                           HG_SDF
//
//     GLSL LIBRARY FOR BUILDING SIGNED DISTANCE BOUNDS
//
//     version 2015-12-15 (initial release)
//
//     Check http://mercury.sexy/hg_sdf for updates
//     and usage examples. Send feedback to spheretracing@mercury.sexy.

shinmai

#include "DeferredRenderer.h"
#include "cinder/gl/gl.h"
#include "cinder/Log.h"
#include "cinder/Buffer.h"

#include "DeferredRendererShaders.h"
#include "DeferredRenderer_random_png.h"

using namespace ci;
using namespace std;

shinmai

#ifdef GL_ES
precision mediump float;
#endif

#extension GL_OES_standard_derivatives : enable

uniform float time;
uniform vec2 mouse;
uniform vec2 resolution;

shinmai

#ifndef PHONG_LIGHTING_INC
#define PHONG_LIGHTING_INC 1

#define USE_OPTIMIZATION 1

#include "BRDF.h"

float GetAngleAttenuation(vec3 _l, vec3 _lightDir, float _angleScale, float _angleOffset)
{
	float cosa = -dot(_l, _lightDir);

shinmai

in vec2 v_texcoord; // texture coords
in vec3 v_normal;   // normal
in vec3 v_binormal; // binormal (for TBN basis calc)
in vec3 v_pos;      // pixel view space position

out vec4 color;

layout(std140) uniform Transforms
{
    mat4x4 world_matrix;  // object's world position

shinmai

// brdf
vec3 radiance(
	vec3 n,		// macro surface normal
	vec3 l,		// direction from vertex to light
	vec3 v,		// direction from vertex to view
	// matt
	float m,	// roughness
	vec3 cdiff,	// diffuse  reflectance
	vec3 cspec,	// specular reflectance : F0
	// light

shinmai

uniform float aoIntensity;          // {"label":"AO intensity",     "min":0, "max":1, "step":0.01, "default":0.15,  "group":"Shading", "group_label":"Ambient occlusion"}
uniform float aoSpread;             // {"label":"AO spread",    "min":0, "max":20, "step":0.01, "default":9,  "group":"Shading"}

// Ambient occlusion approximation.
// Based upon boxplorer's implementation which is derived from:
// http://www.iquilezles.org/www/material/nvscene2008/rwwtt.pdf
float ambientOcclusion(vec3 p, vec3 n, float eps)
{
    float o = 1.0;                  // Start at full output colour intensity
    eps *= aoSpread;                // Spread diffuses the effect

shinmai

#define PI 3.14159265359
#define PI2 6.28318530718

// Comment or uncomment
// (Leave commented if in shadergif)
// (uncomment if in shadertoy)
//#define shadertoy 1

#ifdef shadertoy
// time is iGlobalTime in shadertoy