Indigo Renderer Forum

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<?xml version="1.0" encoding="utf-8"?>
<scenedata>
	<medium>
		<name>MedGlassWindshield</name>
			<precedence>10</precedence>
			<basic>
				<ior>1.25</ior>
				<cauchy_b_coeff>0</cauchy_b_coeff>
				<max_extinction_coeff>1</max_extinction_coeff>
				<fast_sss>false</fast_sss>
				<absorption_coefficient>
					<constant>
						<rgb>
							<rgb>2.394298195839 2.394298195839 2.394298195839</rgb>
							<gamma>1</gamma>
						</rgb>
					</constant>
				</absorption_coefficient>
			</basic>
	</medium>
	<material>
		<name>Glass_Windshield</name>
		<specular>
			<internal_medium_name>MedGlassWindshield</internal_medium_name>
			<transparent>true</transparent>
			<arch_glass>false</arch_glass>
			<single_face>false</single_face>
		</specular>
	</material>
	<material>
		<name>Glass_Windshield_Coating</name>
		<coating>
			<absorption>
				<constant>
					<rgb>
						<rgb>2.394298195839 2.394298195839 2.394298195839</rgb>
						<gamma>1</gamma>
					</rgb>
				</constant>
			</absorption>
			<thickness>
					<constant>0.001</constant>
			</thickness>
			<roughness>
					<constant>0.00125</constant>
			</roughness>
			<fresnel_scale>
					<constant>1</constant>
			</fresnel_scale>
			<ior>1.1</ior>
			<interference>false</interference>
			<substrate_material_name>Glass_Windshield</substrate_material_name>
		</coating>
	</material>
</scenedata>

Code: Select all

<?xml version="1.0" encoding="utf-8"?>
<scenedata>
	<material>
		<name>phong_substrate</name>
		<phong>
			<exponent>
					<constant>5000</constant>
			</exponent>
			<roughness>
					<constant>0.15</constant>
			</roughness>
			<fresnel_scale>
					<constant>1</constant>
			</fresnel_scale>
			<ior>1.5</ior>
			<nk_data>nkdata/cr.nk</nk_data>
		</phong>
	</material>
	<material>
		<name>Chrome_Coated_Shader</name>
		<coating>
			<absorption>
				<constant>
					<uniform>
						<value>10000</value>
					</uniform>
				</constant>
			</absorption>
			<thickness>
				<shader>
						<shader><![CDATA[def thickness_um() real : 
	0.18 + 2.8 * fbm(
    	posOS() + fbm3Valued(posOS() * 12.0, 12),
    1)
		
            
def eval(vec3 pos) real :
	0.0000095 * thickness_um()
						]]></shader>
				</shader>
			</thickness>
			<roughness>
					<constant>0.5</constant>
			</roughness>
			<fresnel_scale>
					<constant>1</constant>
			</fresnel_scale>
			<ior>1.8</ior>
			<interference>true</interference>
			<substrate_material_name>phong_substrate</substrate_material_name>
		</coating>
	</material>
</scenedata>