update2

grass/single_strand.obj

@@ -0,0 +1,215 @@
+# Blender v2.75 (sub 0) OBJ File: 'slime_tower_d.blend'
+# www.blender.org
+mtllib single_strand.mtl
+o Plane
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+usemtl None
+s off
+f 1//1 5//1 6//1 2//1
+f 2//2 6//2 72//2 71//2
+f 5//3 56//3 55//3 6//3
+f 6//4 55//4 81//4 72//4
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+f 36//64 72//64 81//64 66//64

lmapper/shaders/global_illumination.h

@@ -0,0 +1,193 @@
+/*
+	Copyright (c) 2006 soho vfx inc.
+	Copyright (c) 2006 The 3Delight Team.
+*/
+
+#ifndef _global_illumination_h
+#define _global_illumination_h
+
+#define NO_EFFECT 0
+#define OCCLUSION 1
+#define FAST_IBL 2
+#define FULL_GI 3
+
+float
+getGiEffect()
+{
+	uniform float effect = 0;
+	option( "user:_3dfm_gi_effect", effect );
+	
+	return effect;
+}
+
+float getGiAddToFinalMix()
+{
+	uniform float add_to_final_mix = 0;
+	option( "user:_3dfm_gi_add_to_final_mix", add_to_final_mix );
+	
+	return add_to_final_mix;
+}
+
+// Retrieves all global illumination effect variables
+
+color
+getGlobalIlluminationComponents(
+	varying normal i_N;
+	varying float i_roughness;
+	varying color i_gi_weight;
+	output varying color o_visibility;
+	output varying color o_env_diffuse;
+	output varying color o_color_bleeding;)
+{
+	extern point P;
+	extern vector I;
+	vector V = -(normalize(I));
+	
+	shader gi_shader = getshader( "maya_gi_shader" );
+	if( gi_shader != null )
+	{
+		uniform float effect = 0;
+		getvar( gi_shader, "effect", effect );
+		if( effect != 0 )
+		{
+			varying color gi = gi_shader->ComputeGI( P, i_N, V, i_roughness, i_gi_weight );
+			getvar( gi_shader, "out_visibility", o_visibility );
+			getvar( gi_shader, "out_environment_diffuse", o_env_diffuse );
+			getvar( gi_shader, "out_color_bleeding", o_color_bleeding );
+			return gi;
+		}
+	}
+
+	o_visibility = 1;
+	o_env_diffuse = 0;
+	o_color_bleeding = 0;
+	return color(0);
+}
+
+color
+computeIndirectDiffuseAndGIAOVs(
+	color i_diffuse_factor;
+	color i_surface_color;
+	color i_surface_transparency;
+	normal i_N )
+{
+	color gi_weight = i_surface_color * i_diffuse_factor;
+
+	color visibility;
+	color env_diffuse;
+	color color_bleeding;
+
+	color gi = getGlobalIlluminationComponents(
+		i_N, 0, gi_weight,
+		visibility, env_diffuse, color_bleeding );
+
+#ifdef USE_AOV_aov_gi
+	extern varying color aov_gi;
+	extern color __transparency;
+	aov_gi += __transparency * i_surface_color * i_diffuse_factor * gi;
+#endif
+#ifdef USE_AOV_aov_occlusion
+	extern varying color aov_occlusion;
+	extern color __transparency;
+	aov_occlusion += __transparency *
+		visibility * (1.0 - i_surface_transparency);
+#endif
+#ifdef USE_AOV_aov_env_diffuse
+	extern varying color aov_env_diffuse;
+	extern color __transparency;
+	aov_env_diffuse += __transparency *
+		i_surface_color * i_diffuse_factor * env_diffuse;
+#endif
+#ifdef USE_AOV_aov_indirect
+	extern varying color aov_indirect;
+	extern color __transparency;
+	aov_indirect +=	__transparency *
+		i_surface_color * i_diffuse_factor * color_bleeding;
+#endif
+
+	return i_diffuse_factor * gi;
+}
+
+float
+getGiEnvironmentMapParameters(
+	output uniform string envmap;
+	output uniform string envspace;)
+{
+	envmap = "";
+	envspace = "";
+	
+	uniform float envmap_found = 
+		option( "user:_3dfm_gi_environment_map", envmap );
+	option( "user:_3dfm_gi_environment_space", envspace );
+	
+	return envmap_found;
+}
+
+float
+getGiEnvironmentParameters(
+	output uniform string envmap;
+	output uniform string envspace;
+	output uniform float env_intensity;
+	output uniform color env_color_gain;
+	output uniform color env_color_offset;
+	output uniform float env_specularity; )
+{
+	envmap = "";
+	envspace = "";
+	env_intensity = 1.0;
+	env_color_gain = 1.0;
+	env_color_offset = 0.0;
+	env_specularity = 0;
+
+	uniform float envmap_found = getGiEnvironmentMapParameters( envmap, envspace );
+
+	if( envmap_found )
+	{
+		option( "user:_3dfm_gi_environment_intensity", env_intensity );
+		option( "user:_3dfm_gi_environment_color_gain", env_color_gain );
+		option( "user:_3dfm_gi_environment_color_offset", env_color_offset );
+		option( "user:_3dfm_gi_environment_specularity", env_specularity );
+	}
+	
+	return envmap_found;
+}
+
+// Computes the reflections caused by the IBL options of the
+// Global Illumination options of the render pass.
+//
+color getGiEnvironmentSpecular(
+	vector i_dir;
+	float i_samples;
+	float i_blur)
+{
+	color env_color = 0;
+	
+	uniform string envmap = "";
+	uniform string envspace = "";
+	uniform float env_intensity = 1.0;
+	uniform color env_color_gain = 1.0;
+	uniform color env_color_offset = 0.0;
+	uniform float env_specularity = 0;
+	uniform float envmap_found = getGiEnvironmentParameters( envmap, envspace, 
+		env_intensity, env_color_gain, env_color_offset, env_specularity );
+
+	if( envmap_found != 0 && env_specularity > 0 )
+	{
+		vector dir = i_dir;
+		
+		if( envspace != "" )
+			dir = transform( envspace, i_dir );
+		
+		env_color = environment(
+			envmap, dir, dir, dir, dir, 
+			"samples", i_samples, "blur", i_blur);
+
+		env_color = env_color * env_color_gain + env_color_offset;
+		env_color *= env_intensity * env_specularity;
+	}
+
+	return env_color;
+}
+
+
+#endif

lmapper/shaders/utils.h

@@ -0,0 +1,193 @@
+/*
+	Copyright (c) 2006 soho vfx inc.
+	Copyright (c) 2006 The 3Delight Team.
+*/
+
+
+#ifndef _utils_h
+#define _utils_h
+
+#define LOG05 -0.693147180559945  /* log(0.5) */
+#ifndef UNDEFINED_UV
+#define UNDEFINED_UV -10000000
+#endif
+
+#define ISUVDEFINED(U, V) ( abs(U) < 100000 && abs(V) < 100000 )
+
+#define WRAPMAX (1.000001)
+#define EPSILON 1e-6
+
+float
+luminance( color i_color )
+{
+	return
+		0.3 * comp(i_color, 0) + 
+		0.59 * comp(i_color, 1) + 
+		0.11 * comp(i_color, 2);
+}
+
+// Compute the CIE luminance (Rec. 709) of a given color.
+float CIEluminance(color c)
+{
+	return
+	      comp(c, 0) * 0.212671
+	    + comp(c, 1) * 0.715160
+	    + comp(c, 2) * 0.072169;
+}
+
+// Compute the square of a given value.
+float sq(float x)
+{
+	return x * x;
+}
+
+color
+cabs( color i_color )
+{
+	return color(
+		abs(comp(i_color, 0)), abs(comp(i_color,1)), abs(comp(i_color,2)) );
+}
+
+/* Taken from ARMAN */
+float filteredpulse (float edge0, edge1, x, dx)
+{
+    float x0 = x - dx/2;
+    float x1 = x0 + dx;
+    return max (0, (min(x1,edge1)-max(x0,edge0)) / dx);
+}
+
+/* Taken from ARMAN and improved. */
+float filteredpulsetrain (float edge, period, x, dx)
+{
+	/* First, normalize so period == 1 and our domain of interest is > 0 */
+    float w = dx/period;
+    float x0 = x/period - w/2;
+    float x1 = x0+w;
+    float nedge = edge / period;
+
+	/* Definite integral of normalized pulsetrain from 0 to t */
+    float integral (float t) { 
+        extern float nedge;
+        return ((1-nedge)*floor(t) + max(0,t-floor(t)-nedge));
+    }
+
+	float result;
+	if( x0 == x1 )
+	{
+		/* Trap the unfiltered case so it doesn't return 0 (when dx << x). */
+		result = (x0 - floor(x0) < nedge) ? 0 : 1;
+	}
+	else
+	{
+    	result = (integral(x1) - integral(x0)) / w;
+
+		/*
+			The above integral is subject to its own aliasing as we go beyond
+			where the pattern should be extinct. We try to avoid that by
+			switching to a constant value.
+		*/
+		float extinct = smoothstep( 0.4, 0.5, w );
+		result = result + extinct * (1 - nedge - result);
+	}
+
+	return result;
+}
+
+/*
+	Perlin's bias function
+*/
+float bias(float b, x)
+{
+    return pow(x, log(b)/LOG05);
+}
+	
+void
+colorBalance(
+	output color io_outColor;
+	output float io_outAlpha;
+	uniform float i_alphaIsLuminance;
+	float i_alphaGain;
+	float i_alphaOffset;
+	color i_colorGain;
+	color i_colorOffset;
+	uniform float i_invert; )
+{
+	if(i_invert != 0.0)
+	{
+		io_outColor = 1 - io_outColor;
+		io_outAlpha = 1 - io_outAlpha;
+	}
+
+	if(i_alphaIsLuminance != 0.0)
+	{
+		io_outAlpha = luminance( io_outColor );
+	}
+
+	io_outColor *= i_colorGain;
+	io_outColor += i_colorOffset;
+
+	io_outAlpha *= i_alphaGain;
+	io_outAlpha += i_alphaOffset;
+}	
+
+float srgbToLinear(float i_value)
+{
+	float linear;
+
+	if(i_value <= 0.04045)
+	{
+		linear = (1.0/12.92) * i_value;
+	}
+	else
+	{
+		linear = pow((i_value + 0.055) * (1.0 / 1.055), 2.4);
+	}
+
+	return linear;
+}
+
+float rec709ToLinear(float i_value)
+{
+	float linear;
+
+	if(i_value <= 0.081)
+	{
+		linear = (1.0 / 4.5) * i_value;
+	}
+	else
+	{
+		linear = pow((i_value + 0.099) * (1.0 / 1.099), (1.0 / 0.45));
+	}
+
+	return linear;
+}
+
+color getLinearizedColor(color i_color)
+{
+	color result = i_color;
+
+	float profile;
+	if( option( "user:defaultinputcolorprofile", profile ) != 0 )
+	{
+		if( profile == 3 )
+		{
+			result =
+				color(
+					srgbToLinear(result[0]),
+					srgbToLinear(result[1]),
+					srgbToLinear(result[2]) );
+		}
+		else if( profile == 5 )
+		{
+			result =
+				color(
+					rec709ToLinear(result[0]),
+					rec709ToLinear(result[1]),
+					rec709ToLinear(result[2]) );
+		}
+	}
+
+	return result;
+}
+
+#endif

lmapper/shaders/xplastic.sl

@@ -0,0 +1,39 @@
+surface xplastic(
+    float Ka = 1;
+    float Kd = 1;
+    float Ks = 0.5;
+    float roughness = 0.1;
+    color specularcolor = 1;
+    string mapName = "";
+)   
+{
+    normal Ni;
+    matrix mv, mp, mv_inv;
+    float xs, xt;
+    point P2;
+
+    // Query the normal map texture
+    textureinfo (mapName, "viewingmatrix", mv);
+    mv_inv = 1 / mv;
+    textureinfo (mapName, "projectionmatrix", mp);
+
+    // Transform P from current space to NDC space
+    P2 = transform (mp, P);
+    xs = (1.0 + xcomp (P2)) * 0.5;
+    xt = (1.0 - ycomp (P2)) * 0.5;
+
+    // Extract the normal Nf from the normal map texture
+    color cn = color texture (mapName, xs, xt, xs, xt, xs, xt, xs, xt,
+    "samples", 1);
+    setxcomp (Ni, comp (cn, 0));
+    setycomp (Ni, comp (cn, 1));
+    setzcomp (Ni, comp (cn, 2));
+    normal Nf = ntransform (mv_inv, Ni);
+    Nf = normalize (Nf);
+
+    vector V = - normalize (I);
+    Ci = Cs * (Ka * ambient () + Kd * diffuse (Nf)) +
+    Ks * specularcolor * specular (Nf, V, roughness);
+    Oi = Os;
+    Ci *= Oi;
+}

lmapper/textures/fetch.sh

@@ -0,0 +1 @@
+tdlmake -progress -flipt /projects/xten_art/assets/environment/ground/source/tweaked_heightmap.tif tweaked_heightmap.tdl