Raytracer/exampleSpot.xml at master · GustavoAC/Raytracer · GitHub

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<raytracer>
    <!--- The Camera -->
    <camera type="perspective" name="cam_flat">
        <!--- The camera frame -->
        <position x="9" y="3.5" z="15"/>
        <!--- located at the origin -->
        <target x="0" y="0" z="-1"/>
        <!--- looking down the -Z axis -->
        <up x="0" y="1" z="0"/>
        <!--- the camera's up vector -->
        <!--- Specific parameters for perspective projection -->
        <fovy value="25.0" />
        <!--- Optional parameter, aspect ration W/H -->
        <fdistance value="1" />
        <!--- The focal distance  -->
        <!--- Retina/image dimensions -->
        <width value="3600"/>
        <height value="1800"/>
    </camera>

    <!--- The Scene -->
    <scene>
        <!--- The Background -->
        <background type="color">            <!-- This defines an interpolated background -->
            <color r="153" g="204" b="255"/>
            <!-- bottom left  -->
            <color r="18" g="10" b="143"/>
            <!-- top left     -->
            <color r="18" g="10" b="143"/>
            <!-- top right    -->
            <color r="153" g="204" b="255"/>
            <!-- bottom right -->
        </background>
        <object type="sphere" name="sphere1" material="greenish">
            <radius value="0.5"/>
            <center x="0" y="0" z="-2"/>
        </object>
        <object type="sphere" name="sphere2" material="redish">
            <radius value="0.5"/>
            <center x="-4" y="0" z="-2"/>
        </object>
        <object type="sphere" name="sphere3" material="blueish">
            <radius value="0.5"/>
            <center x="4" y="0" z="-2"/>
        </object>
        <object type="sphere" name="sphere4" material="grey">
            <radius value="5000"/>
            <center x="0" y="-5000.5" z="-1"/>
        </object>

        <!--- Library of materials -->
        <material type="blinn" name="redish">
            <ambient r="0.1" g="0.1" b="0.1"/>
            <diffuse r="0.9" g="0.2" b="0.1"/>
            <specular r="0.8" g="0.8" b="0.8"/>
            <glossiness value="256"/>
        </material>
        <material type="blinn" name="greenish">
            <ambient r="0.1" g="0.1" b="0.1"/>
            <diffuse r="0.2" g="0.9" b="0.2"/>
            <specular r="0.8" g="0.8" b="0.8"/>
            <glossiness value="256"/>
        </material>
        <material type="blinn" name="blueish">
            <ambient r="0.1" g="0.1" b="0.1"/>
            <diffuse r="0.1" g="0.2" b="0.9"/>
            <specular r="0.8" g="0.8" b="0.8"/>
            <glossiness value="256"/>
        </material>
        <material type="blinn" name="grey">
            <ambient r="0.1" g="0.1" b="0.1"/>
            <diffuse r="0.8" g="0.8" b="0.8"/>
            <specular r="0" g="0" b="0"/>
            <glossiness value="8"/>
        </material>

        <!-- Lights -->
        <light type="ambient" name="ambient_light">
            <intensity r="0.1" g="0.1" b="0.1"/>
        </light>
        <light type="spot" name="spot1">
            <intensity r="0.3" g="0.9" b="0.3"/>
            <position x="0" y="1" z="2"/>
            <point_at x="0" y="0" z="-2"/>
            <cutoff value="35"/>
            <falloff value="14"/>
        </light>
        <light type="spot" name="spot2">
            <intensity r="0.7" g="0.2" b="0.2"/>
            <position x="0" y="4" z="-2"/>
            <point_at x="-4" y="0" z="-2"/>
            <cutoff value="35"/>
            <falloff value="10"/>
        </light>
        <light type="spot" name="spot3">
            <intensity r="0.2" g="0.2" b="0.7"/>
            <position x="0" y="4" z="-2"/>
            <point_at x="4" y="0" z="-2"/>
            <cutoff value="35"/>
            <falloff value="14"/>
        </light>
    </scene>

    <!--- Running setup -->
    <running>
        <integrator type="blinn phong">
            <spp value="1"/>
            <!--- Samples per pixel -->
            <depth value="1"/>
        </integrator>
    </running>
</raytracer>