Ajout du projet Depths sur Git

2026-04-30 12:24:52 +02:00
commit a143ea22c7
6651 changed files with 77423 additions and 0 deletions
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+<?xml version="1.0"?>
+<materialx version="1.38">
+
+  <!-- <point_light> -->
+  <implementation name="IM_point_light_genglsl" nodedef="ND_point_light" file="mx_point_light.glsl" function="mx_point_light" target="genglsl" />
+
+  <!-- <directional_light> -->
+  <implementation name="IM_directional_light_genglsl" nodedef="ND_directional_light" file="mx_directional_light.glsl" function="mx_directional_light" target="genglsl" />
+
+  <!-- <spot_light> -->
+  <implementation name="IM_spot_light_genglsl" nodedef="ND_spot_light" file="mx_spot_light.glsl" function="mx_spot_light" target="genglsl" />
+
+</materialx>
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+void mx_directional_light(LightData light, vec3 position, out lightshader result)
+{
+    result.direction = -light.direction;
+    result.intensity = light.color * light.intensity;
+}
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+void mx_point_light(LightData light, vec3 position, out lightshader result)
+{
+    result.direction = light.position - position;
+    float distance = length(result.direction) + M_FLOAT_EPS;
+    float attenuation = pow(distance + 1.0, light.decay_rate + M_FLOAT_EPS);
+    result.intensity = light.color * light.intensity / attenuation;
+    result.direction /= distance;
+}
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+void mx_spot_light(LightData light, vec3 position, out lightshader result)
+{
+    result.direction = light.position - position;
+    float distance = length(result.direction) + M_FLOAT_EPS;
+    float attenuation = pow(distance + 1.0, light.decay_rate + M_FLOAT_EPS);
+    result.intensity = light.color * light.intensity / attenuation;
+    result.direction /= distance;
+    float low = min(light.inner_angle, light.outer_angle);
+    float high = light.inner_angle;
+    float cosDir = dot(result.direction, -light.direction);
+    float spotAttenuation = smoothstep(low, high, cosDir);
+    result.intensity *= spotAttenuation;
+}
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+<?xml version="1.0"?>
+<materialx version="1.38">
+
+  <!-- <point_light> -->
+  <implementation name="IM_point_light_genmsl" nodedef="ND_point_light" file="mx_point_light.metal" function="mx_point_light" target="genmsl" />
+
+  <!-- <directional_light> -->
+  <implementation name="IM_directional_light_genmsl" nodedef="ND_directional_light" file="mx_directional_light.metal" function="mx_directional_light" target="genmsl" />
+
+  <!-- <spot_light> -->
+  <implementation name="IM_spot_light_genmsl" nodedef="ND_spot_light" file="mx_spot_light.metal" function="mx_spot_light" target="genmsl" />
+
+</materialx>
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+void mx_directional_light(LightData light, float3 position, thread lightshader& result)
+{
+    result.direction = -light.direction;
+    result.intensity = light.color * light.intensity;
+}
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+void mx_point_light(LightData light, float3 position, thread lightshader& result)
+{
+    result.direction = light.position - position;
+    float distance = length(result.direction) + M_FLOAT_EPS;
+    float attenuation = pow(distance + 1.0, light.decay_rate + M_FLOAT_EPS);
+    result.intensity = light.color * light.intensity / attenuation;
+    result.direction /= distance;
+}
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+void mx_spot_light(LightData light, float3 position, thread lightshader& result)
+{
+    result.direction = light.position - position;
+    float distance = length(result.direction) + M_FLOAT_EPS;
+    float attenuation = pow(distance + 1.0, light.decay_rate + M_FLOAT_EPS);
+    result.intensity = light.color * light.intensity / attenuation;
+    result.direction /= distance;
+    float low = min(light.inner_angle, light.outer_angle);
+    float high = light.inner_angle;
+    float cosDir = dot(result.direction, -light.direction);
+    float spotAttenuation = smoothstep(low, high, cosDir);
+    result.intensity *= spotAttenuation;
+}
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+<?xml version="1.0"?>
+<materialx version="1.38">
+  <!--
+    Copyright Contributors to the MaterialX Project
+    SPDX-License-Identifier: Apache-2.0
+
+    Declarations of common light nodes, used in code generation for hardware
+    shading languages that require explicit light loops.
+
+    These nodes are a required implementation detail for hardware shader
+    generation, and are not themselves part of the MaterialX standard.
+  -->
+
+  <!-- ======================================================================== -->
+  <!-- Light shader nodes                                                       -->
+  <!-- ======================================================================== -->
+
+  <!--
+    Node: <point_light>
+  -->
+  <nodedef name="ND_point_light" node="point_light" nodegroup="light" doc="A light shader node of 'point' type.">
+    <input name="position" type="vector3" doc="Light source position." />
+    <input name="color" type="color3" doc="Light color." />
+    <input name="intensity" type="float" doc="Light intensity." />
+    <input name="decay_rate" type="float" value="2.0" doc="Light decay exponent. Defaults to 2 for quadratic decay." />
+    <output name="out" type="lightshader" />
+  </nodedef>
+
+  <!--
+    Node: <directional_light>
+  -->
+  <nodedef name="ND_directional_light" node="directional_light" nodegroup="light" doc="A light shader node of 'directional' type.">
+    <input name="direction" type="vector3" doc="Light source direction." />
+    <input name="color" type="color3" doc="Light color." />
+    <input name="intensity" type="float" doc="Light intensity." />
+    <output name="out" type="lightshader" />
+  </nodedef>
+
+  <!--
+    Node: <spot_light>
+  -->
+  <nodedef name="ND_spot_light" node="spot_light" nodegroup="light" doc="A light shader node of 'spot' type.">
+    <input name="position" type="vector3" doc="Light source position." />
+    <input name="direction" type="vector3" doc="Light source direction." />
+    <input name="color" type="color3" doc="Light color." />
+    <input name="intensity" type="float" doc="Light intensity." />
+    <input name="decay_rate" type="float" value="2.0" doc="Light decay exponent. Defaults to 2 for quadratic decay." />
+    <input name="inner_angle" type="float" doc="Inner cone angle." />
+    <input name="outer_angle" type="float" doc="Outer cone angle." />
+    <output name="out" type="lightshader" />
+  </nodedef>
+
+</materialx>