Adding Shave-and-a-Haircut 9.6

1 files changed, 124 insertions, 0 deletions

diff --git a/vrayPlug/plugin/shaveVrayShadeData.h b/vrayPlug/plugin/shaveVrayShadeData.h
new file mode 100644
index 0000000..b85c8aa
--- /dev/null
+++ b/vrayPlug/plugin/shaveVrayShadeData.h
@@ -0,0 +1,124 @@
+#ifndef _HAIR_VRAY_SHADE_DATA_H_
+#define _HAIR_VRAY_SHADE_DATA_H_
+
+// Shave and a Haircut
+// (c) 2019 Epic Games
+// US Patent 6720962
+
+// V-Ray headers
+#include "vraybase.h"
+#include "vraymayageom.h"
+#include "vrayplugins.h"
+#include "geometryclasses.h"
+#include "hairprimitives.h"
+#include "rayprimitives.h"
+
+class shaveVrayInstance;
+class shaveVrayVoxelPrim;
+
+class shaveVrayShadeData : public VR::BaseShadeData,  
+#if VRAY_DLL_VERSION < 0x31000
+	public VR::VRayMayaHairDataInterface,
+	public VR::VRayFurSamplingInterface, 
+#else
+	public VR::VRayHairCommonShadeData,
+#endif
+	public VR::MappedSurface
+{
+#if defined(VRAY30) || defined(VRAY40)
+	VR::HairData *hairData;
+#endif
+	shaveVrayVoxelPrim* getIntersectedPrimitive(const VR::VRayContext &rc);
+public:
+
+	shaveVrayShadeData(shaveVrayInstance *instance /*, MayaHairPrimitiveType *hairPrimitive*/);
+
+	PluginBase* getPlugin(void) VRAY_OVERRIDE
+	{
+		return NULL;
+	}
+	PluginInterface* newInterface(InterfaceID id) VRAY_OVERRIDE
+	{
+#if VRAY_DLL_VERSION < 0x31000
+		if (id==EXT_MAYA_HAIR_DATA) 
+			return static_cast<VR::VRayMayaHairDataInterface*>(this);
+		if (id==EXT_VRAY_FUR_SAMPLING)
+			return static_cast<VR::VRayFurSamplingInterface*>(this);
+#else
+		if (id==EXT_VRAY_COMMON_HAIR_SHADE_DATA)
+			return static_cast<VR::VRayHairCommonShadeData*>(this);
+#endif
+		if (id==EXT_MAPPED_SURFACE)
+			return static_cast<VR::MappedSurface*>(this);
+
+		return BaseShadeData::newInterface(id);
+	}
+
+	// From VRayMayaHairDataInterface
+	// From VRayHairCommonShadeData (3.0)
+	VR::Color getColor(const VR::VRayContext &rc) VRAY_OVERRIDE;
+	VR::Color getIncandescence(const VR::VRayContext &rc) VRAY_OVERRIDE;
+	VR::Color getTransparency(const VR::VRayContext &rc) VRAY_OVERRIDE;
+	void getShadeData(const VR::VRayContext &rc, VR::VRayMayaHairShadeData &result) VRAY_OVERRIDE;
+#if defined(VRAY30) || defined(VRAY40)
+	float getRandByStrand(const VR::VRayContext &rc, int seedOffset) VRAY_OVERRIDE;
+	
+	int getStrandIndex(const VR::VRayContext &rc) VRAY_OVERRIDE;
+	
+	int getSegmentIndexInStrand(const VR::VRayContext &rc) VRAY_OVERRIDE;
+	
+	void getIndexAndBlend(const VR::VRayContext &rc, int &out_index, float &out_blend) VRAY_OVERRIDE;
+#	if VRAY_DLL_VERSION >= 0x36000
+	float getStrandLength(const VR::VRayContext &rc) VRAY_OVERRIDE;
+#	endif
+
+#endif	
+
+	// From VRayFurSamplingInterface
+	float getDistanceAlongStrand(const VR::VRayContext &rc) VRAY_OVERRIDE;
+
+	// From MappedSurface
+#if defined(VRAY30)
+	VR::Transform getLocalUVWTransform(const VR::VRayContext &rc, int channel) VRAY_OVERRIDE;
+#elif defined(VRAY40)
+	void getLocalUVWTransform(const VR::VRayContext &rc, int channel, VR::ShadeTransform &result) override;
+	void getLocalUVWCoordinates(const VR::VRayContext &rc, int channel, VR::ShadeVec &result) override;
+	int getLocalUVWTransformByName(const VR::VRayContext &rc, const VR::StringID &channelName, VR::ShadeTransform &result) override;
+	int getUVWCoordinatesByName(const VR::VRayContext &rc, const VR::StringID &channelName, VR::ShadeVec &result) override;
+	VR::ShadeVec getMapChannelVertexVector(int mapChannelIdx, int vertexIdx) override;
+	VR::ShadeVec getUVWcoords(const VR::VRayContext &vri, int channel) override;
+	void getUVWderivs(const VR::VRayContext &vri, int channel, VR::ShadeVec derivs[2]) override;
+	void getUVWbases(const VR::VRayContext &vri, int channel, VR::ShadeVec bases[3]) override;
+	VR::ShadeVec getUVWnormal(const VR::VRayContext &vri, int channel) override;
+#endif
+};
+
+/*
+ * Get strand, segment index and offset within segment from ray context.
+ */
+static inline void shaveVrayGetHairParams(const VR::VRayContext &rc, int &out_strand, int &out_segment, float &out_offset) {
+#if defined(VRAY30) || defined(VRAY40)
+		out_strand = rc.rayresult.extra_int[1];
+		out_segment = rc.rayresult.faceIndex;
+		out_offset = rc.rayresult.bary[0];
+#else
+		out_strand = rc.rayresult.faceIndex;
+		out_segment = (int)rc.rayresult.extraf;
+		out_offset = rc.rayresult.bary[2];
+#endif
+}
+
+/*
+ * Get strand and segment index from ray context.
+ */
+static inline void shaveVrayGetHairParams(const VR::VRayContext &rc, int &out_strand, int &out_segment) {
+#if defined(VRAY30) || defined(VRAY40)
+		out_strand = rc.rayresult.extra_int[1];
+		out_segment = rc.rayresult.faceIndex;
+#else
+		out_strand = rc.rayresult.faceIndex;
+		out_segment = (int)rc.rayresult.extraf;
+#endif
+}
+
+#endif