MDL SDK 2024.0.2 (377400.2626)

CHANGELOG.md

@@ -1,5 +1,33 @@
 Change Log
 ==========
+MDL SDK 2024.0.2 (377400.2626): 07 Aug 2024
+-----------------------------------------------
+
+ABI compatible with the MDL SDK 2024.0.2 (377400.2626) binary release
+(see [https://developer.nvidia.com/mdl-sdk](https://developer.nvidia.com/mdl-sdk))
+
+**Added and Changed Features**
+
+- General
+    - MDL Arnold: Added support for Arnold SDK version 7.3.2.1.
+
+**Fixed Bugs**
+
+- General
+    - Fixed missing leading "::" for qualified names reported by `IMdl_discovery_api`,
+      if search paths had a trailing OS separator.
+    - Improved error message that can be triggered when calling non-const methods
+      on const objects. This can e.g. be triggered via the Python binding by accessing
+      (not editing) database elements.
+    - Improved coverage tests for the Python binding.
+
+- MDL Compiler and Backends
+    - Fixed crash in some cases when derivatives were calculated for a struct also containing
+      non-floating point fields.
+    - Fixed wrong digit that can be added to `tex::texture_isvalid()` calls for
+      HLSL and GLSL backends, if more than one texture type (for instance `texture_2d` and
+      `texture_3d`) are used together in one module.
+
 MDL SDK 2024.0.1 (377400.2109): 18 Jul 2024
 -----------------------------------------------
 

LICENSE.md

@@ -1,6 +1,3 @@
-MDL SDK Copyright and License
-=============================
-
 Copyright (c) 2018-2024, NVIDIA CORPORATION. All rights reserved.
 
 Redistribution and use in source and binary forms, with or without

doc/base_module/index.html

@@ -169,7 +169,7 @@ <h3>Edge</h3>
 
 </div><div id="blackfooter">
   <span class="footeritem">
-17&#160;July&#160;2024,&#160;19:52,&#160;rev379530, v1.3
+6&#160;August&#160;2024,&#160;19:57,&#160;rev380010, v1.3
 </span>
  <span class="footeritem">
 <a href="https://www.nvidia.com/en-us/about-nvidia/legal-info/">&copy; 2024 NVIDIA&nbsp;Corporation.</a> All rights reserved.

doc/build/doxygen_footer.html

@@ -2,7 +2,7 @@
 <!-- start footer part -->
 <!--BEGIN GENERATE_TREEVIEW-->
 <div id="nav-path">
-<span class="footeritem">MDL SDK 2024.0.1 (377400.2109): $datetime</span>
+<span class="footeritem">MDL SDK 2024.0.2 (377400.2626): $datetime</span>
 <span class="footeritem">
   <a href="http://www.nvidia.com/">
     &copy;&#160;2024&#160;NVIDIA&#160;Corporation.</a>

doc/core_definitions/index.html

@@ -198,6 +198,13 @@ <h2>Page cannot be loaded</h2>
 </li>
 </ol>
 
+<p>The documentation is also available as a PDF file from the links in the black bar at the
+bottom of the page or from the following links:</p>
+
+<div style="padding-left:2em;">
+<a href="mdl_core_definitions.240806.A4.pdf">View documentation in A4 format</a><br>
+<a href="mdl_core_definitions.240806.LTR.pdf">View documentation in US Letter format</a><br>
+</div>
 <h3>Overriding security settings</h3>
 
 <p>If the problem is due to the configuration of the browser (case #3), 
@@ -270,7 +277,7 @@ <h3>Edge</h3>
 <span class="footeritem">
 </span>
   <span class="footeritem">
-17&#160;July&#160;2024,&#160;19:52,&#160;rev379530, v1.4
+6&#160;August&#160;2024,&#160;19:58,&#160;rev380010, v1.4
 </span>
  <span class="footeritem">
 <a href="https://www.nvidia.com/en-us/about-nvidia/legal-info/">&copy; 2024 NVIDIA&nbsp;Corporation.</a> All rights reserved.

doc/index.html

@@ -61,7 +61,7 @@
 </div>
 <div id="blackfooter">
 <span class="footeritem">
-MDL SDK 2024.0.1 (377400.2109): 18 Jul 2024
+MDL SDK 2024.0.2 (377400.2626): 07 Aug 2024
 </span>
 <span class="footeritem">
 <a href="http://www.nvidia.com/">&copy;&#160;2024&#160;NVIDIA&#160;Corporation.</a> &#160;All&#160;rights&#160;reserved.

doc/mdl_sdkapi/example_axf_to_mdl.dox

@@ -46,7 +46,7 @@ This example loads an X-Rite AxF(Appearance Exchange Format) file and converts i
         AxF to MDL material format conversion
     </b></dt>
     <dd><br>
-        The example first loads an AxF file and parses it using the AxF Decoding SDK (not distributed with MDL-SDK,
+        The example first loads an AxF file and parses it using the AxF Decoding SDK (not distributed with MDL SDK,
         please check \link mi_neuray_getting_started Getting started \endlink for further information) in order to decode AxF material representations, its parameters,
         its resources such a texture bitmaps, measurements, and metadata.
 
@@ -60,7 +60,7 @@ This example loads an X-Rite AxF(Appearance Exchange Format) file and converts i
 
         This means The MDL representations will have a close visual appearance to its AxF equivalents and will expose the same input parameters.
 
-        This way, by using MDL-SDK, the example will load this module and use it as template to create material variations to map parameters,
+        This way, by using MDL SDK, the example will load this module and use it as template to create material variations to map parameters,
         textures and measurements between MDL and AxF representations and so achieving the conversion.
 
         Finally, the example will write a output MDL file with the resulting variation(s) along its resources (bitmaps).

doc/mdl_sdkapi/example_distilling_target.dox

@@ -52,12 +52,12 @@ distilled.
     </b></dt>
     <dd><br>
         A custom Distiller plugin is a shared library that is loaded
-        into the MDL-SDK and provides one or more custom distilling
+        into the MDL SDK and provides one or more custom distilling
         target(s) to the an application. The application is
         responsible for loading the plugin and can then use the
         target(s) through the Distiller API, just as for the targets
         from the <tt>mdl_distiller</tt> plugin which is part of the
-        MDL-SDK.
+        MDL SDK.
 
         The \ref example_distilling_target "example program" described
         below loads an example plugin and distills a material to the
@@ -91,7 +91,7 @@ distilled.
         Note that the example plugin implements one target.  The
         plugin interface is general enough so that plugins could
         implement more than one in the same plugin. The distiller
-        plugin <tt>mdl_distilller</tt> that comes with the MDL-SDK
+        plugin <tt>mdl_distiller</tt> that comes with the MDL SDK
         does exactly that and implements multiple targets.
 
         <!-- Workaround to prevent a layout problem after dd tags. -->
@@ -109,15 +109,15 @@ distilled.
         which rule sets are applied to a material graph, and in which
         order.
 
-        Each rule consists of a left- and a right-hadn side. The
+        Each rule consists of a left- and a right-hand side. The
         left-hand side is a pattern that matches a graph node and
         binds variables, and the right-hand side specifies the
         replacement for the matched rule.
 
         When a rule set is applied to a material, the Distiller will
         attempt to match all rules of a rule set, in order, to each
         node in the material graph. When it matches, the variables in
-        the lefthand pattern of the rule are bound to subexpressions
+        the left-hand pattern of the rule are bound to subexpressions
         of the current node, and the node on the right-hand side is
         constructed, possibly including expressions bound by the
         left-hand pattern. After a successful match, the Distiller

doc/mdl_sdkapi/example_mdl_browser.dox

@@ -69,7 +69,7 @@ configured search paths.
         Each node in the tree can save various information in form of key-value-pairs. 
         This allows us to store names, authors, descriptions or other data, mainly gathered from 
         annotations, for each exported material or function. The example also contains an 
-        implementation of the IMdl_cache_serializer, which exports the cache to a xml file 
+        implementation of the IMdl_cache_serializer, which exports the cache to a XML file 
         and imports it back again when the application is started the next time.
 
         In the current implementation, all modules that are not already in the cache, 

doc/mdl_sdkapi/example_modules.dox

@@ -91,7 +91,7 @@ This example loads an MDL module and inspects it contents.
     <dd><br>
         MDL materials and functions (as found in a \c .mdl file) are represented in the
         \neurayApiName by the interface #mi::neuraylib::IFunction_definition. Similar to the module
-        interface thi interface offers various methods related to metadata, like the name of the
+        interface this interface offers various methods related to metadata, like the name of the
         definition, or the name of the containing module. Important methods are those that provide
         details about the parameters, like their names, types, and the values of defaults (if
         present).

doc/mdl_sdkapi/mdltl.dox

@@ -36,7 +36,7 @@ plugins is documented in three parts:
   compiled rules created by the MDLTL compiler in a Distiller plugin.
 
 - \subpage mi_neuray_mdltl_spec <br>
-  Specification of MDLT, including a detailed description of the
+  Specification of MDLTL, including a detailed description of the
   language.
 
 - \subpage mi_neuray_mdltl_grammar <br>

doc/mdl_sdkapi/mdltl_manual.dox

@@ -76,7 +76,7 @@ rule engine to repeatedly apply transformation rules to nodes in the
 material graph. Transformation rules are implemented as subclasses of
 the class `mi::mdl::IRule_matcher`. These classes for rule-matching can
 be written by hand, but a more convenient and less error-prone option
-is to write rules in the <i>MDL Transforamtion Language (MDLTL)</i>. MDLTL is a
+is to write rules in the <i>MDL Transformation Language (MDLTL)</i>. MDLTL is a
 domain-specific language for describing transformations on MDL
 materials. These transformations are expressed as a set of rules which
 are compiled to C++ code and are then linked into Distiller plugins.

doc/mdl_sdkapi/mdltl_spec.dox

@@ -460,19 +460,19 @@ are transformed into calls to one of the functions:
 - `bsdf_unbounded_mix_1, bsdf_unbounded_mix_2, bsdf_unbounded_mix_3, bsdf_unbounded_mix_4`
 - `bsdf_color_mix_1, bsdf_color_mix_2, bsdf_color_mix_3, bsdf_color_mix_4`
 - `bsdf_color_clamped_mix_1, bsdf_color_clamped_mix_2, bsdf_color_clamped_mix_3, bsdf_color_clamped_mix_4`
-- `bsdf_color_unboudned_mix_1, bsdf_color_unbounded_mix_2, bsdf_color_unbounded_mix_3, bsdf_color_unbounded_mix_4`
+- `bsdf_color_unbounded_mix_1, bsdf_color_unbounded_mix_2, bsdf_color_unbounded_mix_3, bsdf_color_unbounded_mix_4`
 - `edf_mix_1, edf_mix_2, edf_mix_3, edf_mix_4`
 - `edf_clamped_mix_1, edf_clamped_mix2, edf_clamped_mix_3, edf_clamped_mix_4`
 - `edf_unbounded_mix_1, edf_unbounded_mix_2, edf_unbounded_mix_3, edf_unbounded_mix_4`
 - `edf_color_mix_1, edf_color_mix_2, edf_color_mix_3, edf_color_mix_4`
 - `edf_color_clamped_mix_1, edf_color_clamped_mix_2, edf_color_clamped_mix_3, edf_color_clamped_mix_4`
-- `edf_color_unboudned_mix_1, edf_color_unbounded_mix_2, edf_color_unbounded_mix_3, edf_color_unbounded_mix_4`
+- `edf_color_unbounded_mix_1, edf_color_unbounded_mix_2, edf_color_unbounded_mix_3, edf_color_unbounded_mix_4`
 - `vdf_mix_1, vdf_mix_2, vdf_mix_3, vdf_mix_4`
 - `df_clamped_mix_1, vdf_clamped_mix2, vdf_clamped_mix_3, vdf_clamped_mix_4`
 - `vdf_unbounded_mix_1, vdf_unbounded_mix_2, vdf_unbounded_mix_3, vdf_unbounded_mix_4`
 - `vdf_color_mix_1, vdf_color_mix_2, vdf_color_mix_3, vdf_color_mix_4`
 - `vdf_color_clamped_mix_1, vdf_color_clamped_mix_2, vdf_color_clamped_mix_3, vdf_color_clamped_mix_4`
-- `vdf_color_unboudned_mix_1, vdf_color_unbounded_mix_2, vdf_color_unbounded_mix_3, vdf_color_unbounded_mix_4`
+- `vdf_color_unbounded_mix_1, vdf_color_unbounded_mix_2, vdf_color_unbounded_mix_3, vdf_color_unbounded_mix_4`
 
 depending of their number and types of parameters before rule
 application and back afterwards. That means that rules can only match
@@ -491,7 +491,7 @@ The mixer call transformation in the rule engine also applies some
 normalization to the calls. Since the order of parameters for these
 functions does not matter, the pairs of weights and DFs are sorted by
 the semantics of the argument DFs.  DF semantics are represented by
-the `mi::mdl::IDefinition::Semantics` enumeration in the MDL-SDK and
+the `mi::mdl::IDefinition::Semantics` enumeration in the MDL SDK and
 the calls in mixer calls are ordered according to the the numerical
 values of the C++ enum variants.
 

examples/mdl/nvidia/sdk_examples/tutorials_aov.mdl

@@ -161,9 +161,3 @@ export aov_material merge5(
     example: (1.0f - mix) * a.example +  mix * b2.example,
     magic: int(math::lerp(float(a.magic), float(b2.magic), mix))
 );
-
-// Example of an empty material.
-// FIXME: assertion fails.
-export struct empty_material in material_category {
-};
-export empty_material empty() = empty_material();

examples/mdl_core/calls/CMakeLists.txt

@@ -42,6 +42,7 @@ create_from_base_preset(
     OUTPUT_NAME "calls"
     SOURCES ${PROJECT_SOURCES}
     EXAMPLE
+    STATIC_MSVC_RUNTIME
 )
 
 # add dependencies

examples/mdl_core/code_gen/example_code_gen.cpp

@@ -370,7 +370,7 @@ int MAIN_UTF8(int argc, char* argv[])
         options.print_usage(std::cout);
         exit(EXIT_FAILURE);
     }
-    
+
     // Print description of command line options
     if (options.m_help)
     {
@@ -440,6 +440,9 @@ code_gen [options] <qualified_material_name>
 bool Options::parse(int argc, char* argv[])
 {
     m_mdl_paths.push_back(get_samples_mdl_root());
+    const auto& path = get_src_shaders_mdl();
+    if (path != ".")
+        m_mdl_paths.push_back(path);
 
     for (int i = 1; i < argc; ++i)
     {
@@ -573,4 +576,4 @@ bool Options::parse(int argc, char* argv[])
         }
     }
     return true;
-}
+}

examples/mdl_core/shared/CMakeLists.txt

@@ -39,6 +39,7 @@ endif()
 set(PROJECT_SOURCES
     "example_cuda_shared.h"
     "example_shared.h"
+    "example_shared.cpp"
     "example_shared_backends.h"
     "texture_support_cuda.h"
     ${DUMMY_CPP}
@@ -51,25 +52,26 @@ create_from_base_preset(
     OUTPUT_NAME "shared"
     SOURCES ${PROJECT_SOURCES}
     EXAMPLE
+    STATIC_MSVC_RUNTIME
 )
 add_library(mdl_core::shared ALIAS ${PROJECT_NAME})
 
 # inject the MDL_SAMPLES_ROOT path
-target_compile_definitions(${PROJECT_NAME} 
-    PUBLIC
+target_compile_definitions(${PROJECT_NAME}
+    PRIVATE
         "MDL_SAMPLES_ROOT=\"${CMAKE_CURRENT_SOURCE_DIR}/../..\""
     )
 
 # add dependencies
-target_add_dependencies(TARGET ${PROJECT_NAME} 
-    DEPENDS 
-        mdl::mdl_core    
-    NO_RUNTIME_COPY     # header only -> the consumer will also add this dependency
+target_add_dependencies(TARGET ${PROJECT_NAME}
+    DEPENDS
+        mdl::mdl_core
+    NO_RUNTIME_COPY
     )
 
 # add include directories
 target_include_directories(${PROJECT_NAME}
     INTERFACE
         # the template makes non public headers private by default
-        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> 
+        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
     )

examples/mdl_core/shared/example_shared.cpp

@@ -0,0 +1,71 @@
+/******************************************************************************
+ * Copyright (c) 2024, NVIDIA CORPORATION. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+// examples/mdl_core/shared/example_shared.cpp
+//
+// Code shared by all examples
+
+#include "example_shared.h"
+
+void* g_dso_handle = 0;
+
+// Intentionally not implemented inline which would require callers to define MDL_SAMPLES_ROOT.
+std::string get_samples_root()
+{
+    std::string path = get_environment("MDL_SAMPLES_ROOT");
+    if (path.empty()) {
+#ifdef MDL_SAMPLES_ROOT
+        path = MDL_SAMPLES_ROOT;
+#else
+        path = ".";
+#endif
+    }
+
+    if (dir_exists(path.c_str()))
+        return path;
+
+    return ".";
+}
+
+// Intentionally not implemented inline which would require callers to define MDL_SRC_SHADERS_MDL.
+std::string get_src_shaders_mdl()
+{
+    std::string path = get_environment("MDL_SRC_SHADERS_MDL");
+    if (path.empty()) {
+#ifdef MDL_SRC_SHADERS_MDL
+        path = MDL_SRC_SHADERS_MDL;
+#else
+        path = ".";
+#endif
+    }
+
+    if (dir_exists(path.c_str()))
+        return path;
+
+    return ".";
+}