Initial commit

.gitignore

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+bin/*
+objs/*

Makefile

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+###########################################################################
+# user-configurable section
+###########################################################################
+
+# common locations for the OpenEXR libraries; may need to be updated
+# for unusual installation locations
+HAVE_EXR=1
+EXR_INCLUDES=-I/usr/local/include/OpenEXR -I/usr/include/OpenEXR -I/opt/local/include/OpenEXR 
+EXR_LIBDIR=-L/usr/local/lib -L/opt/local/lib
+
+HAVE_LIBTIFF=1
+TIFF_INCLUDES=-I/usr/local/include -I/opt/local/include
+TIFF_LIBDIR=-L/usr/local/lib -L/opt/local/lib
+
+HAVE_DTRACE=0
+
+# remove -DPBRT_HAS_OPENEXR to build without OpenEXR support
+DEFS=-DPBRT_HAS_OPENEXR
+
+# 32 bit
+#MARCH=-m32 -msse2 -mfpmath=sse
+
+# 64 bit
+MARCH=-m64
+
+# change this to -g3 for debug builds
+OPT=-O2
+# comment out this line to enable assertions at runtime
+DEFS += -DNDEBUG
+
+#########################################################################
+# nothing below this line should need to be changed (usually)
+#########################################################################
+
+ARCH = $(shell uname)
+
+LEX=flex
+YACC=bison -d -v -t
+LEXLIB = -lfl
+
+ifeq ($(HAVE_DTRACE),1)
+    DEFS += -DPBRT_PROBES_DTRACE
+else
+    DEFS += -DPBRT_PROBES_NONE
+endif
+
+EXRLIBS=$(EXR_LIBDIR) -Bstatic -lIex -lIlmImf -lIlmThread -lImath -lIex -lHalf -Bdynamic
+ifeq ($(ARCH),Linux)
+  EXRLIBS += -lpthread
+endif
+ifeq ($(ARCH),OpenBSD)
+  EXRLIBS += -lpthread
+endif
+ifeq ($(ARCH),Darwin)
+  EXRLIBS += -lz
+endif
+
+CC=gcc
+CXX=g++
+LD=$(CXX) $(OPT) $(MARCH)
+INCLUDE=-I. -Icore $(EXR_INCLUDES) $(TIFF_INCLUDES)
+WARN=-Wall
+CWD=$(shell pwd)
+CXXFLAGS=$(OPT) $(MARCH) $(INCLUDE) $(WARN) $(DEFS)
+CCFLAGS=$(CXXFLAGS)
+LIBS=$(LEXLIB) $(EXR_LIBDIR) $(EXRLIBS) -lm 
+
+LIBSRCS=$(wildcard core/*.cpp) core/pbrtlex.cpp core/pbrtparse.cpp
+LIBSRCS += $(wildcard accelerators/*.cpp cameras/*.cpp film/*.cpp filters/*.cpp )
+LIBSRCS += $(wildcard integrators/*.cpp lights/*.cpp materials/*.cpp renderers/*.cpp )
+LIBSRCS += $(wildcard samplers/*.cpp shapes/*.cpp textures/*.cpp volumes/*.cpp)
+
+LIBOBJS=$(addprefix objs/, $(subst /,_,$(LIBSRCS:.cpp=.o)))
+
+HEADERS = $(wildcard */*.h)
+
+TOOLS = bin/bsdftest bin/exravg bin/exrdiff
+ifeq ($(HAVE_LIBTIFF),1)
+    TOOLS += bin/exrtotiff
+endif
+
+default: dirs bin/pbrt $(TOOLS)
+
+bin/%: dirs
+
+pbrt: bin/pbrt
+
+dirs:
+	/bin/mkdir -p bin objs
+
+$(LIBOBJS): $(HEADERS)
+
+.PHONY: dirs tools 
+
+objs/libpbrt.a: $(LIBOBJS)
+	@echo "Building the core rendering library (libpbrt.a)"
+	@ar rcs $@ $(LIBOBJS)
+
+objs/accelerators_%.o: accelerators/%.cpp
+	@echo "Building object $@"
+	@$(CXX) $(CXXFLAGS) -o $@ -c $<
+
+objs/cameras_%.o: cameras/%.cpp
+	@echo "Building object $@"
+	@$(CXX) $(CXXFLAGS) -o $@ -c $<
+
+objs/core_%.o: core/%.cpp
+	@echo "Building object $@"
+	@$(CXX) $(CXXFLAGS) -o $@ -c $<
+
+objs/film_%.o: film/%.cpp
+	@echo "Building object $@"
+	@$(CXX) $(CXXFLAGS) -o $@ -c $<
+
+objs/filters_%.o: filters/%.cpp
+	@echo "Building object $@"
+	@$(CXX) $(CXXFLAGS) -o $@ -c $<
+
+objs/integrators_%.o: integrators/%.cpp
+	@echo "Building object $@"
+	@$(CXX) $(CXXFLAGS) -o $@ -c $<
+
+objs/lights_%.o: lights/%.cpp
+	@echo "Building object $@"
+	@$(CXX) $(CXXFLAGS) -o $@ -c $<
+
+objs/main_%.o: main/%.cpp
+	@echo "Building object $@"
+	@$(CXX) $(CXXFLAGS) -o $@ -c $<
+
+objs/materials_%.o: materials/%.cpp
+	@echo "Building object $@"
+	@$(CXX) $(CXXFLAGS) -o $@ -c $<
+
+objs/renderers_%.o: renderers/%.cpp
+	@echo "Building object $@"
+	@$(CXX) $(CXXFLAGS) -o $@ -c $<
+
+objs/samplers_%.o: samplers/%.cpp
+	@echo "Building object $@"
+	@$(CXX) $(CXXFLAGS) -o $@ -c $<
+
+objs/shapes_%.o: shapes/%.cpp
+	@echo "Building object $@"
+	@$(CXX) $(CXXFLAGS) -o $@ -c $<
+
+objs/textures_%.o: textures/%.cpp
+	@echo "Building object $@"
+	@$(CXX) $(CXXFLAGS) -o $@ -c $<
+
+objs/volumes_%.o: volumes/%.cpp
+	@echo "Building object $@"
+	@$(CXX) $(CXXFLAGS) -o $@ -c $<
+
+objs/pbrt.o: main/pbrt.cpp
+	@echo "Building object $@"
+	@$(CXX) $(CXXFLAGS) -o $@ -c $<
+
+objs/%.o: tools/%.cpp
+	@echo "Building object $@"
+	@$(CXX) $(CXXFLAGS) -o $@ -c $<
+
+bin/%: objs/%.o objs/libpbrt.a 
+	@echo "Linking $@"
+	@$(CXX) $(CXXFLAGS) -o $@ $^ $(LIBS)
+
+bin/exrtotiff: objs/exrtotiff.o 
+	@echo "Linking $@"
+	@$(CXX) $(CXXFLAGS) -o $@ $^ $(TIFF_LIBDIR) -ltiff $(LIBS) 
+
+core/pbrtlex.cpp: core/pbrtlex.ll core/pbrtparse.cpp
+	@echo "Lex'ing pbrtlex.ll"
+	@$(LEX) -o$@ core/pbrtlex.ll
+
+core/pbrtparse.cpp: core/pbrtparse.yy
+	@echo "YACC'ing pbrtparse.yy"
+	@$(YACC) -o $@ core/pbrtparse.yy
+	@if [ -e core/pbrtparse.cpp.h ]; then /bin/mv core/pbrtparse.cpp.h core/pbrtparse.hpp; fi
+	@if [ -e core/pbrtparse.hh ]; then /bin/mv core/pbrtparse.hh core/pbrtparse.hpp; fi
+
+ifeq ($(HAVE_DTRACE),1)
+core/dtrace.h: core/dtrace.d
+	/usr/sbin/dtrace -h -s $^ -o $@
+
+$(LIBOBJS): core/dtrace.h
+endif
+
+$(RENDERER_BINARY): $(RENDERER_OBJS) $(CORE_LIB)
+
+clean:
+	rm -f objs/* bin/* core/pbrtlex.[ch]* core/pbrtparse.[ch]*

README_BUILDING.txt

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+
+pbrt is designed to be easily ported to various platforms; the authors
+regularly compile it on Mac OS X, Windows, and a variety of Linux variants.
+pbrt users have sent patches to ensure that it compiles cleanly on FreeBSD,
+OpenBSD, and other systems.  We will happily incorporate patches to make
+the system build on other platforms!  (Please send patches or other notes
+about issues with building pbrt to [email protected].)
+
+=== Building The System ===
+
+--- Windows ---
+
+Please see the file README_BUILDING_MSVC2008.txt or
+README_BUILDING_MSVC2010.txt, as appropriate for the version of Visual
+Studio you're using.
+
+There is not currently support for building pbrt with the Cygwin gcc
+compiler, but patches would be happily accepted.
+
+--- Linux ---
+
+On Linux and other Unix platforms, pbrt can be compiled with either the
+provided Makefile or the provided SCons build files (see http://scons.org
+for information about SCons).  Please see the notes below about installing
+OpenEXR libraries on your system before building pbrt. 
+
+The SCons build files build both debug and release configurations of the
+system, while the Makefile only builds a release build.  See comment at the
+top of the Makefile for how to modify it to do a debug build instead.
+
+--- Mac OS X ---
+
+Please see the notes below about installing OpenEXR libraries on your
+system before building pbrt.
+
+In addition to the Makefile and SCons files described in the "Linux"
+section, there is also is also an XCode project file for Mac OS X,
+pbrt.xcodeproj.
+
+
+=== Build Options and Configuration ===
+
+The remainder of this document has notes about the two main build
+configuration options: using the OpenEXR and TIFF image formats or not, and
+how pbrt collects and reports statistics.  It then has sections about each
+of the main target platforms (Linux, Mac OS X, and Windows).
+
+--- OpenEXR ---
+
+If you have the OpenEXR image library installed (see http://openexr.com),
+then pbrt will read and write OpenEXR format images.  A number of the
+example scenes use OpenEXR image files.  If you do have OpenEXR installed,
+then PBRT_HAS_OPENEXR should be #defined and the paths to the OpenEXR
+headers and libraries should be set in the build rules as appropriate.
+
+On Mac OS X and Linux, OpenEXR compiles easily from the distribution from
+the OpenEXR website.  Alternatively, most package or "ports" systems
+provide an OpenEXR installation.
+
+--- TIFF ---
+
+We provide a utility program to convert from high dynamic range EXR images
+to low dynamic range TIFF images, exrtotiff.  This program includes a
+rudimentary tone mapping pipeline and support for image bloom and gamma
+correction.  To build this program, modify the user configuration section
+appropriately in either Makefile or SCons file (depending on how you're
+building the system.)  There is not currently any support for building this
+from the MSVC solution file on Windows.
+
+More comprehensive sets of programs to work with EXR images are available
+from http://scanline.ca/exrtools/ and http://pfstools.sourceforge.net/.
+
+--- Probes and Statistics ---
+
+pbrt no longer collects runtime rendering statistics by default.  (Updating
+shared statistics counters can cause a substantial performance impact with
+multi-threaded execution.)  To override this, change the definition of the
+PBRT_PROBES_NONE preprocessor #define to either PBRT_PROBES_DTRACE or
+PBRT_PROBES_COUNTERS.
+
+If your system supports dtrace (OSX, FreeBSD, and Solaris, currently--see
+http://en.wikipedia.org/wiki/DTrace for more information), then pbrt is
+instrumented to provide a large number of dtrace probes that can be
+analyzed with dtrace scripts; building with dtrace support is supported if
+you set the PBRT_PROBES_DTRACE preprocessor #define.  See the dtrace/
+directory for a number of example dtrace scripts to use with pbrt.
+
+Alternatively, PBRT_PROBES_COUNTERS can be set to compile the system to
+gather a number of statistics with shared counters, incurring the
+corresponding performance penalty.