*misc

10 files changed, 127 insertions, 141 deletions

diff --git a/src/core/clip.c b/src/core/clip.c
index 1deb4ee..51321a8 100644
--- a/src/core/clip.c
+++ b/src/core/clip.c
@@ -87,7 +87,7 @@ static float get_intersect_ratio(Vec4* prev, Vec4* curr, Plane plane) {
 //				if (varying_flag & VARYING_WEIGHT) ssrS_lerpvec4(t, &prev->vertex.weight, &curr->vertex.weight, &dst->vertex.weight);
 //*/
 //			}
-//			if (varying_flag & VARYING_EXTRA) {
+//			if (varying_flag & VARYING_ANY) {
 //				int j = 0;
 //				if (varying_flag & VARYING_NUM) {
 //					for (j = 0; j < REG_NUM_COUNT; ++j) {
@@ -185,7 +185,7 @@ bool clip_triangle(Vec4* c0, Vec4* c1, Vec4* c2, Vert* v0, Vert* v1, Vert* v2, u
 //#define INIT_CLIP_VERT(idx) \
 //	clip_buffer.vertices[idx].clip_coord = *c##idx;												 	 \
 //	clip_buffer.vertices[idx].vertex = *v##idx;														 	 \
-//	if (varying_flag & VARYING_EXTRA) {															 	 \
+//	if (varying_flag & VARYING_ANY) {															 	 \
 //		int i = 0;																										 	 \
 //		if(varying_flag & VARYING_NUM) {															 	 \
 //			for (i = 0; i < REG_NUM_COUNT; ++i) {													 \
diff --git a/src/core/clip.h b/src/core/clip.h
index c22bb8d..2ac733d 100644
--- a/src/core/clip.h
+++ b/src/core/clip.h
@@ -3,6 +3,7 @@
 
 #include "../util/type.h"
 #include "vert.h"
+#include "shader.h"
 
 #define LERP(t,a,b) ((1-(t))*(a)+(t)*(b))
 
@@ -11,13 +12,6 @@ typedef struct {
 	Vec4 clip_coord;
 	/*vertex data*/
 	Vert vertex; 
-	/*register values*/
-/*
-	float num[4];
-	Vec2 v2[6];
-	Vec3 v3[8];
-	Vec4 v4[6];
-*/
 } ClippedVert;
 
 #define CLIP_BUFFER_SIZE 6
@@ -26,17 +20,14 @@ typedef struct {
 	ClippedVert vertices[CLIP_BUFFER_SIZE];
 	uint count;
 	/*temp register*/
-	float temp_reg_num[4][CLIP_BUFFER_SIZE];
-	Vec2 temp_reg_v2[6][CLIP_BUFFER_SIZE];
-	Vec3 temp_reg_v3[8][CLIP_BUFFER_SIZE];
-	Vec4 temp_reg_v4[6][CLIP_BUFFER_SIZE];
+	float temp_reg_num[REG_NUM_COUNT][CLIP_BUFFER_SIZE];
+	Vec2 temp_reg_v2[REG_V2_COUNT][CLIP_BUFFER_SIZE];
+	Vec3 temp_reg_v3[REG_V3_COUNT][CLIP_BUFFER_SIZE];
+	Vec4 temp_reg_v4[REG_V4_COUNT][CLIP_BUFFER_SIZE];
 } ClippedBuffer;
 
 ClippedBuffer clip_buffer;
 
-typedef void* (*BcpInterpolator)(Vec3* bc, void* a, void* b, void* c, void* out);
-typedef void* (*LinearInterpolator)(float t, void* a, void* b, void* c, void* out);
-
 bool clip_triangle(Vec4* c0, Vec4* c1, Vec4* c2, Vert* v0, Vert* v1, Vert* v2, uint varying_flag, ClippedBuffer* clipped);
 
 uint clip_line();
diff --git a/src/core/device.c b/src/core/device.c
index 4b16d32..aa83cfe 100644
--- a/src/core/device.c
+++ b/src/core/device.c
@@ -439,7 +439,7 @@ void ssr_draw(ssr_PrimitiveType primitive) {
 	state.uniforms.mv         = &mv;
 
 	uint varying_flag = state.program->varying_flag;
-	bool use_extra_varyings = (varying_flag & VARYING_EXTRA) != 0;
+	bool use_extra_varyings = (varying_flag & VARYING_ANY) != 0;
 
 	/*prepare registers if necessary*/
 	if (use_extra_varyings) {
diff --git a/src/core/rasterizer.c b/src/core/rasterizer.c
index 4f23f52..ba88161 100644
--- a/src/core/rasterizer.c
+++ b/src/core/rasterizer.c
@@ -150,7 +150,6 @@ void ssrR_triangle( Vec4* CA, Vec4* CB, Vec4* CC, Vert* A, Vert* B, Vert* C, Pro
 				discardif(!ssr_testdepth(p.x, p.y, depth));						       \
 			}																														   \
 			/*set varying variables*/																		   \
-			ssrS_solveprops(varying_flag, &bc, A, B, C);									 \
 			ssrS_solveregs(&bc, A->index, B->index, C->index);             \
 			/*enter fragment shader*/																			 \
 			if(program->fragmentshader(uniforms, &ssr_frag_in, &color))	{	 \
diff --git a/src/core/shader.c b/src/core/shader.c
index 86c2ad6..d7ef26f 100644
--- a/src/core/shader.c
+++ b/src/core/shader.c
@@ -14,6 +14,8 @@ Vec2* reg_v2_02;
 Vec2* reg_v2_03;
 Vec2* reg_v2_04;
 Vec2* reg_v2_05;
+Vec2* reg_v2_06;
+Vec2* reg_v2_07;
 
 Vec3* reg_v3_00;
 Vec3* reg_v3_01;
@@ -23,6 +25,10 @@ Vec3* reg_v3_04;
 Vec3* reg_v3_05;
 Vec3* reg_v3_06;
 Vec3* reg_v3_07;
+Vec3* reg_v3_08;
+Vec3* reg_v3_09;
+Vec3* reg_v3_10;
+Vec3* reg_v3_11;
 
 Vec4* reg_v4_00;
 Vec4* reg_v4_01;
@@ -30,6 +36,8 @@ Vec4* reg_v4_02;
 Vec4* reg_v4_03;
 Vec4* reg_v4_04;
 Vec4* reg_v4_05;
+Vec4* reg_v4_06;
+Vec4* reg_v4_07;
 
 extern FragmentShaderIn ssr_frag_in;
 
@@ -39,14 +47,18 @@ Register registers[REG_TOTAL] = {
 	{ 0, REGTYPE_NUM, sizeof(float), NULL },
 	{ 0, REGTYPE_NUM, sizeof(float), NULL },
 	{ 0, REGTYPE_NUM, sizeof(float), NULL },
-	/*6 vec2 registers*/								  
+	/*8 vec2 registers*/
 	{ 0, REGTYPE_VEC2, sizeof(Vec2), NULL },
 	{ 0, REGTYPE_VEC2, sizeof(Vec2), NULL },
 	{ 0, REGTYPE_VEC2, sizeof(Vec2), NULL },
 	{ 0, REGTYPE_VEC2, sizeof(Vec2), NULL },
 	{ 0, REGTYPE_VEC2, sizeof(Vec2), NULL },
 	{ 0, REGTYPE_VEC2, sizeof(Vec2), NULL },
-	/*8 vec3 registers*/								  
+	{ 0, REGTYPE_VEC2, sizeof(Vec2), NULL },
+	{ 0, REGTYPE_VEC2, sizeof(Vec2), NULL },
+	/*12 vec3 registers*/
+	{ 0, REGTYPE_VEC3, sizeof(Vec3), NULL },
+	{ 0, REGTYPE_VEC3, sizeof(Vec3), NULL },
 	{ 0, REGTYPE_VEC3, sizeof(Vec3), NULL },
 	{ 0, REGTYPE_VEC3, sizeof(Vec3), NULL },
 	{ 0, REGTYPE_VEC3, sizeof(Vec3), NULL },
@@ -55,7 +67,11 @@ Register registers[REG_TOTAL] = {
 	{ 0, REGTYPE_VEC3, sizeof(Vec3), NULL },
 	{ 0, REGTYPE_VEC3, sizeof(Vec3), NULL },
 	{ 0, REGTYPE_VEC3, sizeof(Vec3), NULL },
-	/*6 vec4 registers*/								  
+	{ 0, REGTYPE_VEC3, sizeof(Vec3), NULL },
+	{ 0, REGTYPE_VEC3, sizeof(Vec3), NULL },
+	/*8 vec4 registers*/
+	{ 0, REGTYPE_VEC4, sizeof(Vec4), NULL },
+	{ 0, REGTYPE_VEC4, sizeof(Vec4), NULL },
 	{ 0, REGTYPE_VEC4, sizeof(Vec4), NULL },
 	{ 0, REGTYPE_VEC4, sizeof(Vec4), NULL },
 	{ 0, REGTYPE_VEC4, sizeof(Vec4), NULL },
@@ -70,14 +86,16 @@ ActiveReg active_regs[REG_TOTAL] = {
 	{ sizeof(float), NULL, &reg_num_01, ssrS_bcpnum, &ssr_frag_in.num[1] },
 	{ sizeof(float), NULL, &reg_num_02, ssrS_bcpnum, &ssr_frag_in.num[2] },
 	{ sizeof(float), NULL, &reg_num_03, ssrS_bcpnum, &ssr_frag_in.num[3] },
-	/*6 vec2 registers*/
+	/*8 vec2 registers*/
 	{ sizeof(Vec2), NULL, &reg_v2_00, ssrS_bcpvec2, &ssr_frag_in.v2[0] },
 	{ sizeof(Vec2), NULL, &reg_v2_01, ssrS_bcpvec2, &ssr_frag_in.v2[1] },
 	{ sizeof(Vec2), NULL, &reg_v2_02, ssrS_bcpvec2, &ssr_frag_in.v2[2] },
 	{ sizeof(Vec2), NULL, &reg_v2_03, ssrS_bcpvec2, &ssr_frag_in.v2[3] },
 	{ sizeof(Vec2), NULL, &reg_v2_04, ssrS_bcpvec2, &ssr_frag_in.v2[4] },
 	{ sizeof(Vec2), NULL, &reg_v2_05, ssrS_bcpvec2, &ssr_frag_in.v2[5] },
-	/*8 vec3 registers*/																					  
+	{ sizeof(Vec2), NULL, &reg_v2_06, ssrS_bcpvec2, &ssr_frag_in.v2[6] },
+	{ sizeof(Vec2), NULL, &reg_v2_07, ssrS_bcpvec2, &ssr_frag_in.v2[7] },
+	/*12 vec3 registers*/
 	{ sizeof(Vec3), NULL, &reg_v3_00, ssrS_bcpvec3, &ssr_frag_in.v3[0] },
 	{ sizeof(Vec3), NULL, &reg_v3_01, ssrS_bcpvec3, &ssr_frag_in.v3[1] },
 	{ sizeof(Vec3), NULL, &reg_v3_02, ssrS_bcpvec3, &ssr_frag_in.v3[2] },
@@ -86,42 +104,48 @@ ActiveReg active_regs[REG_TOTAL] = {
 	{ sizeof(Vec3), NULL, &reg_v3_05, ssrS_bcpvec3, &ssr_frag_in.v3[5] },
 	{ sizeof(Vec3), NULL, &reg_v3_06, ssrS_bcpvec3, &ssr_frag_in.v3[6] },
 	{ sizeof(Vec3), NULL, &reg_v3_07, ssrS_bcpvec3, &ssr_frag_in.v3[7] },
-	/*6 vec4 registers*/																					  
+	{ sizeof(Vec3), NULL, &reg_v3_08, ssrS_bcpvec3, &ssr_frag_in.v3[8] },
+	{ sizeof(Vec3), NULL, &reg_v3_09, ssrS_bcpvec3, &ssr_frag_in.v3[9] },
+	{ sizeof(Vec3), NULL, &reg_v3_10, ssrS_bcpvec3, &ssr_frag_in.v3[10] },
+	{ sizeof(Vec3), NULL, &reg_v3_11, ssrS_bcpvec3, &ssr_frag_in.v3[11] },
+	/*8 vec4 registers*/
 	{ sizeof(Vec4), NULL, &reg_v4_00, ssrS_bcpvec4, &ssr_frag_in.v4[0] },
 	{ sizeof(Vec4), NULL, &reg_v4_01, ssrS_bcpvec4, &ssr_frag_in.v4[1] },
 	{ sizeof(Vec4), NULL, &reg_v4_02, ssrS_bcpvec4, &ssr_frag_in.v4[2] },
 	{ sizeof(Vec4), NULL, &reg_v4_03, ssrS_bcpvec4, &ssr_frag_in.v4[3] },
 	{ sizeof(Vec4), NULL, &reg_v4_04, ssrS_bcpvec4, &ssr_frag_in.v4[4] },
-	{ sizeof(Vec4), NULL, &reg_v4_05, ssrS_bcpvec4, &ssr_frag_in.v4[5] }
+	{ sizeof(Vec4), NULL, &reg_v4_05, ssrS_bcpvec4, &ssr_frag_in.v4[5] },
+	{ sizeof(Vec4), NULL, &reg_v4_06, ssrS_bcpvec4, &ssr_frag_in.v4[6] },
+	{ sizeof(Vec4), NULL, &reg_v4_07, ssrS_bcpvec4, &ssr_frag_in.v4[7] },
 };
 
 /*设置这个draw call开启的寄存器*/
 void ssrS_openregs(uint varying_flag) {
-	if (varying_flag & VARYING_EXTRA == 0)
+	if (varying_flag & VARYING_ANY == 0)
 	{
 		open_regsi[0] = -1;
 		return;
 	}
 	int j = 0;
 	for (int i = 0; i < REG_TOTAL; ++i) {
-		if (varying_flag & VARYING_EXTRA == 0)
+		if (varying_flag & VARYING_ANY == 0)
 			break;
 		if (varying_flag & (1 << i)) {
 			open_regsi[j++] = i;
 			varying_flag &= ~(1 << i);
 		}
 	}
-	if(j < REG_TOTAL) 
+	if (j < REG_TOTAL)
 		open_regsi[j] = -1;
 }
 
 void ssrS_setactiveregr() { /*set active reg data from registers*/
 	int index = 0;
-	ActiveReg* reg; 
+	ActiveReg* reg;
 	for (int i = 0; i < REG_TOTAL; ++i) {
 		index = open_regsi[i];
-		if (index == -1) break; 
-		reg = &active_regs[index]; 
+		if (index == -1) break;
+		reg = &active_regs[index];
 		reg->data = registers[index].data;
 	}
 }
@@ -160,19 +184,19 @@ void ssrS_solveregs(Vec3* bc, uint a, uint b, uint c) {
 }
 
 /*计算基础属性的插值，并输出*/
-void ssrS_solveprops(uint varying_flag, Vec3* bc, Vert* A, Vert* B, Vert* C) {
-	if (varying_flag & VARYING_BASIC) {																																										 		
-		if (varying_flag & VARYING_POSITION) ssrS_bcpvec3(bc, &A->position, &B->position, &C->position, &ssr_frag_in.position);
-		if (varying_flag & VARYING_NORMAL) ssrS_bcpvec3(bc, &A->normal, &B->normal, &C->normal, &ssr_frag_in.normal);					
-		if (varying_flag & VARYING_TANGENT) ssrS_bcpvec3(bc, &A->tangent, &B->tangent, &C->tangent, &ssr_frag_in.tangent);			
-		if (varying_flag & VARYING_TEXCOORD) ssrS_bcpvec2(bc, &A->texcoord, &B->texcoord, &C->texcoord, &ssr_frag_in.texcoord);
-/*
-		if (varying_flag & VARYING_JOINT) ssrS_bcpvec4(&bc, &A->joint, &B->joint, &C->joint, &ssr_frag_in.joint);							
-		if (varying_flag & VARYING_WEIGHT) ssrS_bcpvec4(&bc, &A->weight, &B->weight, &C->weight, &ssr_frag_in.weight);					
-*/
-		if (varying_flag & VARYING_COLOR) ssrS_bcpcolor(bc, A->color, B->color, C->color, &ssr_frag_in.color);								
-	}	
-}
+//void ssrS_solveprops(uint varying_flag, Vec3* bc, Vert* A, Vert* B, Vert* C) {
+//	if (varying_flag & VARYING_BASIC) {
+//		if (varying_flag & VARYING_POSITION) ssrS_bcpvec3(bc, &A->position, &B->position, &C->position, &ssr_frag_in.position);
+//		if (varying_flag & VARYING_NORMAL) ssrS_bcpvec3(bc, &A->normal, &B->normal, &C->normal, &ssr_frag_in.normal);
+//		if (varying_flag & VARYING_TANGENT) ssrS_bcpvec3(bc, &A->tangent, &B->tangent, &C->tangent, &ssr_frag_in.tangent);
+//		if (varying_flag & VARYING_TEXCOORD) ssrS_bcpvec2(bc, &A->texcoord, &B->texcoord, &C->texcoord, &ssr_frag_in.texcoord);
+//		/*
+//				if (varying_flag & VARYING_JOINT) ssrS_bcpvec4(&bc, &A->joint, &B->joint, &C->joint, &ssr_frag_in.joint);
+//				if (varying_flag & VARYING_WEIGHT) ssrS_bcpvec4(&bc, &A->weight, &B->weight, &C->weight, &ssr_frag_in.weight);
+//		*/
+//		if (varying_flag & VARYING_COLOR) ssrS_bcpcolor(bc, A->color, B->color, C->color, &ssr_frag_in.color);
+//	}
+//}
 
 /*给寄存器扩容（如果需要的话）*/
 void ssrS_setregisters(int capacity) {
@@ -185,7 +209,7 @@ void ssrS_setregisters(int capacity) {
 		reg = &registers[index];
 		data = reg->data;
 		if (reg->length >= capacity)
-			continue; 
+			continue;
 		if (!data)
 			data = (byte*)calloc(capacity * reg->element_size, sizeof(byte));
 		else
@@ -197,7 +221,7 @@ void ssrS_setregisters(int capacity) {
 
 /*进入vert shader前设置寄存器指针到对应顶点的数据在寄存器中的位置*/
 void ssrS_setupregisterpoints(int idx) {
-	ActiveReg* reg; 
+	ActiveReg* reg;
 	uint index;
 	for (int i = 0; i < REG_TOTAL; ++i) {
 		index = open_regsi[i];
diff --git a/src/core/shader.h b/src/core/shader.h
index fd71f5a..f433f0e 100644
--- a/src/core/shader.h
+++ b/src/core/shader.h
@@ -4,7 +4,6 @@
 #include "../math/math.h"
 #include "vert.h"
 #include "texture.h"
-#include "clip.h"
 
 typedef struct {
 	/*built in varaibles*/
@@ -32,26 +31,23 @@ typedef struct {
 #define UN(i)   (&uniforms->var_num[i])
 #define UU      (uniforms->userdata)
 
-typedef struct VertexShaderIn {
+#define REG_TOTAL 32
+#define REG_NUM_COUNT 4
+#define REG_V2_COUNT 8 
+#define REG_V3_COUNT 12
+#define REG_V4_COUNT 8
+
+typedef struct {
 	Vert* vertex;
 } VertexShaderIn;
 
 typedef void(*VertexShader)(UniformCollection* uniforms, VertexShaderIn* in, Vec4* homocoord);
 
-typedef struct FragmentShaderIn {
-	/*value from vertices interpolation*/
-	Vec3 position;
-	Vec3 normal;
-	Vec3 tangent;
-	Vec2 texcoord;
-	Color color;
-	Vec4 joint;
-	Vec4 weight;
-	/*value from registers interpolation*/
-	float num[4];
-	Vec2 v2[6];
-	Vec3 v3[8];
-	Vec4 v4[6];
+typedef struct {
+	float num[REG_NUM_COUNT];
+	Vec2 v2[REG_V2_COUNT];
+	Vec3 v3[REG_V3_COUNT];
+	Vec4 v4[REG_V4_COUNT];
 } FragmentShaderIn;
 
 typedef bool(*FragmentShader)(UniformCollection* uniforms, FragmentShaderIn* in, Color32* color);
@@ -64,18 +60,6 @@ typedef struct {
 
 #define VARYING_NONE     (0)
 
-#define VARYING_POSITION (1u << 31)
-#define VARYING_NORMAL   (1u << 30)
-#define VARYING_TANGENT  (1u << 29)
-#define VARYING_TEXCOORD (1u << 28)
-#define VARYING_COLOR		 (1u << 27)
-#define VARYING_JOINT		 (1u << 26)
-#define VARYING_WEIGHT   (1u << 25)
-
-#define VARYING_UNUSED   (1u << 24) 
-
-#define VARYING_BASIC  ( VARYING_UNUSED | VARYING_POSITION | VARYING_NORMAL | VARYING_TANGENT | VARYING_TEXCOORD | VARYING_COLOR | VARYING_JOINT | VARYING_WEIGHT )
-
 #define VARYING_NUM_00		 (1u)
 #define VARYING_NUM_01		 (1u << 1)
 #define VARYING_NUM_02		 (1u << 2)
@@ -89,30 +73,38 @@ typedef struct {
 #define VARYING_V2_03		 (1u << 7)
 #define VARYING_V2_04		 (1u << 8)
 #define VARYING_V2_05		 (1u << 9)
-
-#define VARYING_V2       (VARYING_V2_00 | VARYING_V2_01 | VARYING_V2_02 | VARYING_V2_03 | VARYING_V2_04 | VARYING_V2_05)
-
-#define VARYING_V3_00		 (1u << 10)
-#define VARYING_V3_01		 (1u << 11)
-#define VARYING_V3_02		 (1u << 12)
-#define VARYING_V3_03		 (1u << 13)
-#define VARYING_V3_04		 (1u << 14)
-#define VARYING_V3_05		 (1u << 15)
-#define VARYING_V3_06		 (1u << 16)
-#define VARYING_V3_07		 (1u << 17)
-
-#define VARYING_V3       (VARYING_V3_00 | VARYING_V3_01 | VARYING_V3_02 | VARYING_V3_03 | VARYING_V3_04 | VARYING_V3_05| VARYING_V3_06| VARYING_V3_07)
-
-#define VARYING_V4_00		 (1u << 18)
-#define VARYING_V4_01		 (1u << 19)
-#define VARYING_V4_02		 (1u << 20)
-#define VARYING_V4_03		 (1u << 21)
-#define VARYING_V4_04		 (1u << 22)
-#define VARYING_V4_05		 (1u << 23)
-
-#define VARYING_V4       (VARYING_V4_00 | VARYING_V4_01 | VARYING_V4_02 | VARYING_V4_03 | VARYING_V4_04 | VARYING_V4_05)
-
-#define VARYING_EXTRA    (VARYING_NUM | VARYING_V2 | VARYING_V3 | VARYING_V4)
+#define VARYING_V2_06		 (1u << 10)
+#define VARYING_V2_07		 (1u << 11)
+
+#define VARYING_V2       (VARYING_V2_00 | VARYING_V2_01 | VARYING_V2_02 | VARYING_V2_03 | VARYING_V2_04 | VARYING_V2_05 | VARYING_V2_06 | VARYING_V2_07)
+
+#define VARYING_V3_00		 (1u << 12)
+#define VARYING_V3_01		 (1u << 13)
+#define VARYING_V3_02		 (1u << 14)
+#define VARYING_V3_03		 (1u << 15)
+#define VARYING_V3_04		 (1u << 16)
+#define VARYING_V3_05		 (1u << 17)
+#define VARYING_V3_06		 (1u << 18)
+#define VARYING_V3_07		 (1u << 19)
+#define VARYING_V3_08		 (1u << 20)
+#define VARYING_V3_09		 (1u << 21)
+#define VARYING_V3_10		 (1u << 22)
+#define VARYING_V3_11		 (1u << 23)
+
+#define VARYING_V3       (VARYING_V3_00 | VARYING_V3_01 | VARYING_V3_02 | VARYING_V3_03 | VARYING_V3_04 | VARYING_V3_05| VARYING_V3_06| VARYING_V3_07 | VARYING_V3_08 |VARYING_V3_09 |  VARYING_V3_10 | VARYING_V3_11)
+
+#define VARYING_V4_00		 (1u << 24)
+#define VARYING_V4_01		 (1u << 25)
+#define VARYING_V4_02		 (1u << 26)
+#define VARYING_V4_03		 (1u << 27)
+#define VARYING_V4_04		 (1u << 28)
+#define VARYING_V4_05		 (1u << 29)
+#define VARYING_V4_06		 (1u << 30)
+#define VARYING_V4_07		 (1u << 31)
+
+#define VARYING_V4       (VARYING_V4_00 | VARYING_V4_01 | VARYING_V4_02 | VARYING_V4_03 | VARYING_V4_04 | VARYING_V4_05 | VARYING_V4_06 | VARYING_V4_07)
+
+#define VARYING_ANY    (VARYING_NUM | VARYING_V2 | VARYING_V3 | VARYING_V4)
 
 Color* ssrS_bcpcolor(Vec3* bc, Color A, Color B, Color C, Color* out);
 float* ssrS_bcpnum(Vec3* bc, float* A, float* B, float* C, float* out);
@@ -151,6 +143,9 @@ typedef struct {
 	};
 } Register;
 
+typedef void* (*BcpInterpolator)(Vec3* bc, void* a, void* b, void* c, void* out);
+typedef void* (*LinearInterpolator)(float t, void* a, void* b, void* c, void* out);
+
 typedef struct {
 	uint element_size;
 	byte* data; /*mutable, either of registers or temp-registers*/
@@ -159,21 +154,15 @@ typedef struct {
 	byte* output; /*fragment-in*/
 } ActiveReg;
 
-#define REG_TOTAL 24
-#define REG_NUM_COUNT 4
-#define REG_V2_COUNT 6 
-#define REG_V3_COUNT 8
-#define REG_V4_COUNT 6
-
 Register registers[REG_TOTAL];
 ActiveReg active_regs[REG_TOTAL];
 uint open_regsi[REG_TOTAL]; /*draw call用到的寄存器，可以索引到registers和active_regs*/
 
 /*寄存器指针accessor，指向寄存器中的某个值，用于在shader里快速访问，使用错误可能会出现野指针*/
 float *reg_num_00, *reg_num_01, *reg_num_02, *reg_num_03;
-Vec2 *reg_v2_00, *reg_v2_01, *reg_v2_02, *reg_v2_03, *reg_v2_04, *reg_v2_05;
-Vec3 *reg_v3_00, *reg_v3_01, *reg_v3_02, *reg_v3_03, *reg_v3_04, *reg_v3_05, *reg_v3_06, *reg_v3_07;
-Vec4 *reg_v4_00, *reg_v4_01, *reg_v4_02, *reg_v4_03, *reg_v4_04, *reg_v4_05;
+Vec2 *reg_v2_00, *reg_v2_01, *reg_v2_02, *reg_v2_03, *reg_v2_04, *reg_v2_05, *reg_v2_06, *reg_v2_07;
+Vec3 *reg_v3_00, *reg_v3_01, *reg_v3_02, *reg_v3_03, *reg_v3_04, *reg_v3_05, *reg_v3_06, *reg_v3_07, *reg_v3_08, *reg_v3_09, *reg_v3_10, *reg_v3_11;
+Vec4 *reg_v4_00, *reg_v4_01, *reg_v4_02, *reg_v4_03, *reg_v4_04, *reg_v4_05, *reg_v4_06, *reg_v4_07;
 
 void ssrS_openregs(uint varying_flag);
 void ssrS_setactiveregr();
@@ -187,8 +176,6 @@ void ssrS_setupregisterpoints(int idx);
 /*设置寄存器指针，指向fragIn结构*/
 void ssrS_setregtofragin();
 
-void ssrS_solveprops(uint varying, Vec3* bc, Vert* a, Vert* b, Vert* c);
-
 #define tex2d(tex, uv) \
 texture_sampling(tex, ssr_getfiltermode(), ssr_getwrapmode(), (uv).x, (uv).y)
 
diff --git a/src/example/03_texture.c b/src/example/03_texture.c
index fbd442a..50a96a1 100644
--- a/src/example/03_texture.c
+++ b/src/example/03_texture.c
@@ -115,11 +115,8 @@ void ondrawtexture(void*data) {
 	ssr_bindvertices(yingham_mesh->vertices, yingham_mesh->verts_count, yingham_mesh->triangles, yingham_mesh->tris_count);
 	ssr_draw(PRIMITIVE_TRIANGLE);
 
-	ssr_disable(ENABLE_BACKFACECULL);
-
 	ssr_setuniformtex(0, ground_albedo);
 	ssr_bindvertices(ground_mesh->vertices, ground_mesh->verts_count, ground_mesh->triangles, ground_mesh->tris_count);
 	ssr_draw(PRIMITIVE_TRIANGLE);
 
-	ssr_enable(ENABLE_BACKFACECULL);
 }
diff --git a/src/shaders/default.c b/src/shaders/default.c
index 00b436c..f184e27 100644
--- a/src/shaders/default.c
+++ b/src/shaders/default.c
@@ -27,7 +27,6 @@ static void vert(UniformCollection* uniforms, VertexShaderIn* in, Vec4* clipcoor
 
 static bool frag(UniformCollection* uniforms, FragmentShaderIn* in, Color32* color) {
 	vec3_normalize(light, light);
-	vec3_normalize(&in->normal, &in->normal);
 	float roughness = *rough;
 	//(*color).r = 1;
 	//(*color).g = 1;
@@ -35,17 +34,12 @@ static bool frag(UniformCollection* uniforms, FragmentShaderIn* in, Color32* col
 	//(*color).a = 1;
 	//return 1;
 	//float rough = 1- vec3_dot(&in->normal, light);
-	Color32 c = tex2d(maintex, in->texcoord);
 	//Color32 nc = tex2d(noramltex, in->texcoord);
 	//vec3_scale(&c, roughness, &c);
-	color32_saturate(&c);
-	*color = c;
 	return 1;
 }
 
 Program ssr_built_in_shader_default = {
 	vert, frag,
-	VARYING_TEXCOORD |
-	VARYING_NORMAL |
 	VARYING_NUM_00 
 };
\ No newline at end of file
diff --git a/src/shaders/pbr.c b/src/shaders/pbr.c
index c154f02..3026cc7 100644
--- a/src/shaders/pbr.c
+++ b/src/shaders/pbr.c
@@ -10,6 +10,8 @@
 #define metalness_tex    UTEX(3)
 
 /*varyings*/
+#define uv               reg_v2_00
+#define vnormal          reg_v3_05
 #define rough            reg_num_00
 #define world_pos        reg_v3_00
 #define depth_pos        reg_v3_01
@@ -29,20 +31,22 @@ static void vert(UniformCollection* uniforms, VertexShaderIn* in, Vec4* clipcoor
 	};
 	Vec4 worldnormal; mat4_mulvec4(object2world, &normal, &worldnormal);
 	vec3_normalize(light, light);
-	*rough = 1 - vec3_dot(&worldnormal, light);
+	//*rough = 1 - vec3_dot(&worldnormal, light);
+	//*vnormal = in->vertex->normal;
+	*uv = in->vertex->texcoord;
 }
 
 static bool frag(UniformCollection* uniforms, FragmentShaderIn* in, Color32* color) {
-	vec3_normalize(light, light);
-	vec3_normalize(&in->normal, &in->normal);
-	float roughness = *rough;
+	//vec3_normalize(light, light);
+	//vec3_normalize(vnormal, vnormal);
+	//float roughness = *rough;
 	//(*color).r = 1;
 	//(*color).g = 1;
 	//(*color).b = 1;
 	//(*color).a = 1;
 	//return 1;
 	//float rough = 1- vec3_dot(&in->normal, light);
-	Color32 c = tex2d(albedo_tex, in->texcoord);
+	Color32 c = tex2d(albedo_tex, *uv);
 	//Color32 nc = tex2d(noramltex, in->texcoord);
 	//vec3_scale(&c, roughness, &c);
 	color32_saturate(&c);
@@ -52,14 +56,13 @@ static bool frag(UniformCollection* uniforms, FragmentShaderIn* in, Color32* col
 
 Program ssr_built_in_shader_pbr = {
 	vert, frag,
-	VARYING_TEXCOORD |
-	VARYING_NORMAL |
-    
 	VARYING_NUM_00 | 
-	VARYING_V3_00 |
-	VARYING_V3_01 |
-	VARYING_V3_02 |
-	VARYING_V3_03 |
-	VARYING_V3_04 |
-	VARYING_V4_00 
+	//VARYING_V3_00 |
+	//VARYING_V3_01 |
+	//VARYING_V3_02 |
+	//VARYING_V3_03 |
+	//VARYING_V3_04 |
+	//VARYING_V4_00 |
+	VARYING_V2_00 | 
+	VARYING_V3_05
 };
\ No newline at end of file
diff --git a/src/shaders/unlit.c b/src/shaders/unlit.c
index 59510dd..9a807af 100644
--- a/src/shaders/unlit.c
+++ b/src/shaders/unlit.c
@@ -24,19 +24,10 @@ static void vert(UniformCollection* uniforms, VertexShaderIn* in, Vec4* clipcoor
 
 static bool frag(UniformCollection* uniforms, FragmentShaderIn* in, Color32* color) {
 	vec3_normalize(light, light);
-	vec3_normalize(&in->normal, &in->normal);
-	//float rough = 1- vec3_dot(&in->normal, light);
-	float roughness = *reg_num_00;
-	Color32 c = tex2d(maintex, in->texcoord);
-	//vec3_scale(&c, roughness, &c);
-	//color32_saturate(&c);
-	*color = c;
 	return 1;
 }
 
 Program ssr_built_in_shader_unlit = { 
 	vert, frag,
-	VARYING_TEXCOORD | 
-	VARYING_NORMAL |
 	VARYING_NUM_00
 };