Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later.

Cycles uses code from some great open source projects, many thanks them:

* BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs":
http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/
* Open Shading Language for a large part of the shading system:
http://code.google.com/p/openshadinglanguage/
* Blender for procedural textures and a few other nodes.
* Approximate Catmull Clark subdivision from NVidia Mesh tools:
http://code.google.com/p/nvidia-mesh-tools/
* Sobol direction vectors from:
http://web.maths.unsw.edu.au/~fkuo/sobol/
* Film response functions from:
http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php

1 files changed, 286 insertions, 0 deletions

diff --git a/intern/cycles/kernel/svm/svm_types.h b/intern/cycles/kernel/svm/svm_types.h
new file mode 100644
index 00000000000..aa58aba79c9
--- /dev/null
+++ b/intern/cycles/kernel/svm/svm_types.h
@@ -0,0 +1,286 @@
+/*
+ * Copyright 2011, Blender Foundation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __SVM_TYPES_H__
+#define __SVM_TYPES_H__
+
+CCL_NAMESPACE_BEGIN
+
+/* Stack */
+
+/* SVM stack has a fixed size */
+#define SVM_STACK_SIZE 64
+/* SVM stack offsets with this value indicate that it's not on the stack */
+#define SVM_STACK_INVALID 255 
+
+/* Nodes */
+
+/* note that we do not simply use 0, 1, 2, .. as values for these. this works
+ * around an obscure CUDA bug that happens when compiling for fermi. why it
+ * happens i have no idea, but consecutive values are problematic, maybe it
+ * generates an incorrect jump table. */
+
+enum NodeType {
+	NODE_END = 0,
+	NODE_CLOSURE_BSDF = 100,
+	NODE_CLOSURE_EMISSION = 200,
+	NODE_CLOSURE_BACKGROUND = 300,
+	NODE_CLOSURE_SET_WEIGHT = 400,
+	NODE_CLOSURE_WEIGHT = 500,
+	NODE_MIX_CLOSURE = 600,
+	NODE_JUMP = 700,
+	NODE_TEX_NOISE_F = 800,
+	NODE_TEX_NOISE_V = 900,
+	NODE_TEX_IMAGE = 1000,
+	NODE_TEX_SKY = 1100,
+	NODE_GEOMETRY = 1200,
+	NODE_LIGHT_PATH = 1300,
+	NODE_VALUE_F = 1400,
+	NODE_VALUE_V = 1500,
+	NODE_MIX = 1600,
+	NODE_ATTR = 1700,
+	NODE_CONVERT = 1900,
+	NODE_FRESNEL = 2000,
+	NODE_EMISSION_WEIGHT = 2100,
+	NODE_TEX_BLEND = 2200,
+	NODE_TEX_VORONOI = 2300,
+	NODE_TEX_MUSGRAVE = 2400,
+	NODE_TEX_MARBLE = 2500,
+	NODE_TEX_MAGIC = 2600,
+	NODE_TEX_STUCCI = 2700,
+	NODE_TEX_DISTORTED_NOISE = 2800,
+	NODE_TEX_WOOD = 2900,
+	NODE_TEX_CLOUDS = 3000,
+	NODE_SHADER_JUMP = 3100,
+	NODE_SET_DISPLACEMENT = 3200,
+	NODE_GEOMETRY_BUMP_DX = 3300,
+	NODE_GEOMETRY_BUMP_DY = 3400,
+	NODE_SET_BUMP = 3500,
+	NODE_MATH = 3600,
+	NODE_VECTOR_MATH = 3700,
+	NODE_MAPPING = 3800,
+	NODE_TEX_COORD = 3900,
+	NODE_TEX_COORD_BUMP_DX = 4000,
+	NODE_TEX_COORD_BUMP_DY = 4100,
+	NODE_ADD_CLOSURE = 4200,
+	NODE_EMISSION_SET_WEIGHT_TOTAL = 4300,
+	NODE_ATTR_BUMP_DX = 4400,
+	NODE_ATTR_BUMP_DY = 4500,
+	NODE_TEX_ENVIRONMENT = 4600
+};
+
+enum NodeAttributeType {
+	NODE_ATTR_FLOAT = 0,
+	NODE_ATTR_FLOAT3
+};
+
+enum NodeGeometry {
+	NODE_GEOM_P = 0,
+	NODE_GEOM_N,
+	NODE_GEOM_T,
+	NODE_GEOM_I,
+	NODE_GEOM_Ng,
+	NODE_GEOM_uv
+};
+
+enum NodeLightPath {
+	NODE_LP_camera = 0,
+	NODE_LP_shadow,
+	NODE_LP_diffuse,
+	NODE_LP_glossy,
+	NODE_LP_reflection,
+	NODE_LP_transmission,
+	NODE_LP_backfacing
+};
+
+enum NodeTexCoord {
+	NODE_TEXCO_OBJECT,
+	NODE_TEXCO_CAMERA,
+	NODE_TEXCO_WINDOW,
+	NODE_TEXCO_REFLECTION
+};
+
+enum NodeMix {
+	NODE_MIX_BLEND = 0,
+	NODE_MIX_ADD,
+	NODE_MIX_MUL,
+	NODE_MIX_SCREEN,
+	NODE_MIX_OVERLAY,
+	NODE_MIX_SUB,
+	NODE_MIX_DIV,
+	NODE_MIX_DIFF,
+	NODE_MIX_DARK,
+	NODE_MIX_LIGHT,
+	NODE_MIX_DODGE,
+	NODE_MIX_BURN,
+	NODE_MIX_HUE,
+	NODE_MIX_SAT,
+	NODE_MIX_VAL,
+	NODE_MIX_COLOR,
+	NODE_MIX_SOFT,
+	NODE_MIX_LINEAR
+};
+
+enum NodeMath {
+	NODE_MATH_ADD,
+	NODE_MATH_SUBTRACT,
+	NODE_MATH_MULTIPLY,
+	NODE_MATH_DIVIDE,
+	NODE_MATH_SINE,
+	NODE_MATH_COSINE,
+	NODE_MATH_TANGENT,
+	NODE_MATH_ARCSINE,
+	NODE_MATH_ARCCOSINE,
+	NODE_MATH_ARCTANGENT,
+	NODE_MATH_POWER,
+	NODE_MATH_LOGARITHM,
+	NODE_MATH_MINIMUM,
+	NODE_MATH_MAXIMUM,
+	NODE_MATH_ROUND,
+	NODE_MATH_LESS_THAN,
+	NODE_MATH_GREATER_THAN
+};
+
+enum NodeVectorMath {
+	NODE_VECTOR_MATH_ADD,
+	NODE_VECTOR_MATH_SUBTRACT,
+	NODE_VECTOR_MATH_AVERAGE,
+	NODE_VECTOR_MATH_DOT_PRODUCT,
+	NODE_VECTOR_MATH_CROSS_PRODUCT,
+	NODE_VECTOR_MATH_NORMALIZE
+};
+
+enum NodeConvert {
+	NODE_CONVERT_FV,
+	NODE_CONVERT_CF,
+	NODE_CONVERT_VF
+};
+
+enum NodeDistanceMetric {
+	NODE_VORONOI_DISTANCE_SQUARED,
+	NODE_VORONOI_ACTUAL_DISTANCE,
+	NODE_VORONOI_MANHATTAN,
+	NODE_VORONOI_CHEBYCHEV,
+	NODE_VORONOI_MINKOVSKY_H,
+	NODE_VORONOI_MINKOVSKY_4,
+	NODE_VORONOI_MINKOVSKY
+};
+
+enum NodeNoiseBasis {
+	NODE_NOISE_PERLIN,
+	NODE_NOISE_VORONOI_F1,
+	NODE_NOISE_VORONOI_F2,
+	NODE_NOISE_VORONOI_F3,
+	NODE_NOISE_VORONOI_F4,
+	NODE_NOISE_VORONOI_F2_F1,
+	NODE_NOISE_VORONOI_CRACKLE,
+	NODE_NOISE_CELL_NOISE
+};
+
+enum NodeWaveType {
+	NODE_WAVE_SINE,
+	NODE_WAVE_SAW,
+	NODE_WAVE_TRI
+};
+
+enum NodeMusgraveType {
+	NODE_MUSGRAVE_MULTIFRACTAL,
+	NODE_MUSGRAVE_FBM,
+	NODE_MUSGRAVE_HYBRID_MULTIFRACTAL,
+	NODE_MUSGRAVE_RIDGED_MULTIFRACTAL,
+	NODE_MUSGRAVE_HETERO_TERRAIN
+};
+
+enum NodeWoodType {
+	NODE_WOOD_BANDS,
+	NODE_WOOD_RINGS,
+	NODE_WOOD_BAND_NOISE,
+	NODE_WOOD_RING_NOISE
+};
+
+enum NodeBlendType {
+	NODE_BLEND_LINEAR,
+	NODE_BLEND_QUADRATIC,
+	NODE_BLEND_EASING,
+	NODE_BLEND_DIAGONAL,
+	NODE_BLEND_RADIAL,
+	NODE_BLEND_QUADRATIC_SPHERE,
+	NODE_BLEND_SPHERICAL
+};
+
+enum NodeBlendAxis {
+	NODE_BLEND_HORIZONTAL,
+	NODE_BLEND_VERTICAL
+};
+
+enum NodeMarbleType {
+	NODE_MARBLE_SOFT,
+	NODE_MARBLE_SHARP,
+	NODE_MARBLE_SHARPER
+};
+
+enum NodeStucciType {
+	NODE_STUCCI_PLASTIC,
+	NODE_STUCCI_WALL_IN,
+	NODE_STUCCI_WALL_OUT
+};
+
+enum NodeVoronoiColoring {
+	NODE_VORONOI_INTENSITY,
+	NODE_VORONOI_POSITION,
+	NODE_VORONOI_POSITION_OUTLINE,
+	NODE_VORONOI_POSITION_OUTLINE_INTENSITY
+};
+
+enum ShaderType {
+	SHADER_TYPE_SURFACE,
+	SHADER_TYPE_VOLUME,
+	SHADER_TYPE_DISPLACEMENT
+};
+
+/* Closure */
+
+typedef enum ClosureType {
+	CLOSURE_BSDF_DIFFUSE_ID,
+	CLOSURE_BSDF_TRANSLUCENT_ID,
+	CLOSURE_BSDF_REFLECTION_ID,
+	CLOSURE_BSDF_REFRACTION_ID,
+	CLOSURE_BSDF_GLASS_ID,
+	CLOSURE_BSDF_TRANSPARENT_ID,
+	CLOSURE_BSDF_MICROFACET_GGX_ID,
+	CLOSURE_BSDF_MICROFACET_GGX_REFRACTION_ID,
+	CLOSURE_BSDF_MICROFACET_BECKMANN_ID,
+	CLOSURE_BSDF_MICROFACET_BECKMANN_REFRACTION_ID,
+	CLOSURE_BSDF_WARD_ID,
+	CLOSURE_BSDF_ASHIKHMIN_VELVET_ID,
+	CLOSURE_BSDF_WESTIN_BACKSCATTER_ID,
+	CLOSURE_BSDF_WESTIN_SHEEN_ID,
+	CLOSURE_BSSRDF_CUBIC_ID,
+	CLOSURE_EMISSION_ID,
+	CLOSURE_DEBUG_ID,
+	CLOSURE_BACKGROUND_ID,
+	CLOSURE_HOLDOUT_ID,
+	CLOSURE_SUBSURFACE_ID,
+
+	NBUILTIN_CLOSURES
+} ClosureType;
+
+CCL_NAMESPACE_END
+
+#endif /*  __SVM_TYPES_H__ */
+