I had this problem over 6 months now. I am trying to translate the cal3d shader code to glsl and it works fine when model is standing still but when I move the characters hands go to places they should go, making it look like a monster.
I know not many people understand 'ARB' but I thought I may as well try post here.
char vertexProgramStr[]= "!!ARBvp1.0\n""PARAM constant = { 1, 3, 0, 0 };\n""TEMP R0, R1, R2, R3, R4, R5;\n""ADDRESS A0;\n""ATTRIB texCoord = vertex.attrib[8];\n""ATTRIB normal = vertex.attrib[2];\n""ATTRIB index = vertex.attrib[3];\n""ATTRIB weight = vertex.attrib[1];\n""ATTRIB position = vertex.attrib[0];\n""PARAM worldViewProjMatrix[4] = { state.matrix.mvp };\n""PARAM diffuse = state.material.diffuse;\n""PARAM ambient = state.material.ambient;\n""PARAM lightDir = state.light[0].position;\n""PARAM matrix[87] = { program.local[0..86] };\n""\n""MOV result.texcoord[0].xy, texCoord.xyxx; \n""\n""MUL R4, index, constant.y; \n""\n""ARL A0.x, R4.y;\n""DP3 R0.x, matrix[A0.x].xyzx, normal.xyzx;\n""DP3 R0.y, matrix[A0.x + 1].xyzx, normal.xyzx;\n""DP3 R0.z, matrix[A0.x + 2].xyzx, normal.xyzx;\n""MUL R1.yzw, R0.xxyz, weight.y;\n""\n""ARL A0.x, R4.x;\n""DP3 R0.x, matrix[A0.x].xyzx, normal.xyzx;\n""DP3 R0.y, matrix[A0.x + 1].xyzx, normal.xyzx;\n""DP3 R0.z, matrix[A0.x + 2].xyzx, normal.xyzx;\n""MAD R1.yzw, R0.xxyz, weight.x, R1.yyzw;\n""\n""DP3 R0.x, R1.yzwy, R1.yzwy;\n""RSQ R0.x, R0.x;\n""MUL R0.xyz, R0.x, R1.yzwy;\n""DP3 R1.x, lightDir.xyzx, lightDir.xyzx;\n""RSQ R1.x, R1.x;\n""MUL R2.xyz, R1.x, lightDir.xyzx;\n""DP3 R0.x, R0.xyzx, R2.xyzx;\n""MAX R0.x, R0.x, constant.z;\n""ADD R0, R0.x, ambient;\n""MUL result.color.front.primary, R0, diffuse;\n""\n""ARL A0.x, R4.w;\n""DPH R0.x, position.xyzx, matrix[A0.x];\n""DPH R0.y, position.xyzx, matrix[A0.x + 1];\n""DPH R0.z, position.xyzx, matrix[A0.x + 2];\n""\n""ARL A0.x, R4.z;\n""DPH R3.x, position.xyzx, matrix[A0.x];\n""DPH R3.y, position.xyzx, matrix[A0.x + 1];\n""DPH R3.z, position.xyzx, matrix[A0.x + 2];\n""\n""ARL A0.x, R4.y;\n""DPH R1.y, position.xyzx, matrix[A0.x];\n""DPH R1.z, position.xyzx, matrix[A0.x + 1];\n""DPH R1.w, position.xyzx, matrix[A0.x + 2];\n""MUL R2.xyz, R1.yzwy, weight.y;\n""\n""ARL A0.x, R4.x;\n""DPH R1.x, position.xyzx, matrix[A0.x];\n""DPH R1.y, position.xyzx, matrix[A0.x + 1];\n""DPH R1.z, position.xyzx, matrix[A0.x + 2];\n""\n""MAD R1.xyz, R1.xyzx, weight.x, R2.xyzx;\n""MAD R1.xyz, R3.xyzx, weight.z, R1.xyzx;\n""MAD R0.xyz, R0.xyzx, weight.w, R1.xyzx;\n""\n""DPH result.position.x, R0.xyzx, worldViewProjMatrix[0];\n""DPH result.position.y, R0.xyzx, worldViewProjMatrix[1];\n""DPH result.position.z, R0.xyzx, worldViewProjMatrix[2];\n""DPH result.position.w, R0.xyzx, worldViewProjMatrix[3];\n""END\n";uniform mat4 World;uniform mat4 View;uniform mat4 Proj;attribute vec4 weight;attribute vec4 index;const int max_bones = 29;uniform vec4 BoneMatrix[max_bones*3];vec4 getVertex(){ vec4 R0, R1, R2, R3; int actIndex; vec3 pos = gl_Vertex.xyz; //v actIndex = int(index.w) * 3; R0.x = dot(pos.xyz, BoneMatrix[actIndex].xyz) + BoneMatrix[actIndex].w; //DPH R0.x, position.xyzz, matrix[A0.x]; R0.y = dot(pos.xyz, BoneMatrix[actIndex+1].xyz) + BoneMatrix[actIndex+1].w; //DPH R0.y, position.xyzz, matrix[A0.x + 1]; R0.z = dot(pos.xyz, BoneMatrix[actIndex+2].xyz) + BoneMatrix[actIndex+2].w; //DPH R0.z, position.xyzz, matrix[A0.x + 2]; actIndex = int(index.x) * 3; R1.x = dot(pos.xyz, BoneMatrix[actIndex].xyz) + BoneMatrix[actIndex].w; //DPH R1.y, position.xyzx, matrix[A0.x]; R1.y = dot(pos.xyz, BoneMatrix[actIndex+1].xyz) + BoneMatrix[actIndex+1].w; //DPH R1.z, position.xyzx, matrix[A0.x + 1]; R1.z = dot(pos.xyz, BoneMatrix[actIndex+2].xyz) + BoneMatrix[actIndex+2].w; //DPH R1.w, position.xyzx, matrix[A0.x + 2]; actIndex = int(index.y) * 3; R2.x = dot(pos.xyz, BoneMatrix[actIndex].xyz) + BoneMatrix[actIndex].w; //DPH R2.x, position.xyzx, matrix[A0.x]; R2.y = dot(pos.xyz, BoneMatrix[actIndex+1].xyz) + BoneMatrix[actIndex+1].w; //DPH R2.y, position.xyzx, matrix[A0.x + 1]; R2.z = dot(pos.xyz, BoneMatrix[actIndex+2].xyz) + BoneMatrix[actIndex+2].w; //DPH R2.z, position.xyzx, matrix[A0.x + 2]; actIndex = int(index.z) * 3; R3.x = dot(pos.xyz, BoneMatrix[actIndex].xyz) + BoneMatrix[actIndex].w; //DPH R3.x, position.xyzx, matrix[A0.x]; R3.y = dot(pos.xyz, BoneMatrix[actIndex+1].xyz) + BoneMatrix[actIndex+1].w; //DPH R3.y, position.xyzx, matrix[A0.x + 1]; R3.z = dot(pos.xyz, BoneMatrix[actIndex+2].xyz) + BoneMatrix[actIndex+2].w; //DPH R3.z, position.xyzx, matrix[A0.x + 2]; R0 *= weight.w; R1 *= weight.x; R2 *= weight.y; R3 *= weight.z; R0 = R0 + R1 + R2 + R3; R0.w = 1.0; return R0;}vec3 getNormal(void){ vec4 N0, N1, N2; vec3 normal; normal = gl_Normal; int actIndex; actIndex = int(index.x) * 3; N1.x = dot(normal.xyzx, BoneMatrix[actIndex].xyzx); //DPH R1.y, position.xyzx, matrix[A0.x]; N1.y = dot(normal.xyzx, BoneMatrix[actIndex+1].xyzx); //DPH R1.z, position.xyzx, matrix[A0.x + 1]; N1.z = dot(normal.xyzx, BoneMatrix[actIndex+2].xyzx); //DPH R1.w, position.xyzx, matrix[A0.x + 2]; actIndex = int(index.y) * 3; N2.x = dot(normal.xyzx, BoneMatrix[actIndex].xyzx); //DPH R2.x, position.xyzx, matrix[A0.x]; N2.y = dot(normal.xyzx, BoneMatrix[actIndex+1].xyzx); //DPH R2.y, position.xyzx, matrix[A0.x + 1]; N2.z = dot(normal.xyzx, BoneMatrix[actIndex+2].xyzx); //DPH R2.z, position.xyzx, matrix[A0.x + 2]; vec4 N3, N4; actIndex = int(index.z) * 3; N3.x = dot(normal.xyzx, BoneMatrix[actIndex].xyzx); //DPH R1.y, position.xyzx, matrix[A0.x]; N3.y = dot(normal.xyzx, BoneMatrix[actIndex+1].xyzx); //DPH R1.z, position.xyzx, matrix[A0.x + 1]; N3.z = dot(normal.xyzx, BoneMatrix[actIndex+2].xyzx); //DPH R1.w, position.xyzx, matrix[A0.x + 2]; actIndex = int(index.w) * 3; N4.x = dot(normal.xyzx, BoneMatrix[actIndex].xyzx); //DPH R2.x, position.xyzx, matrix[A0.x]; N4.y = dot(normal.xyzx, BoneMatrix[actIndex+1].xyzx); //DPH R2.y, position.xyzx, matrix[A0.x + 1]; N4.z = dot(normal.xyzx, BoneMatrix[actIndex+2].xyzx); N1 *= weight.x; N2 *= weight.y; N3 *= weight.z; N4 *= weight.w; //? N0 = N1 + N2 + N3 + N4; //N0 sollte die richtige normale sein return N0.xyz;}void main (void){ mat4 VP = (View * Proj); mat4 WVP = (World * View * Proj); mat4 WV = (World * View); mat4 W = World; mat4 V = View; mat4 P = Proj; vec4 avertex = getVertex(); gl_Position = avertex * WVP;}
