can i calculate the normal for a vertice inside the vertexShader? how?

What do you mean? the normal is already available...

i know, but is there a way to calculate it?? i will post a shot which shows my problem this evening.

you mean you want to change the normal in the shader?

indirectly yes, but i want to calculate the normal accordingly to the position because of this:


i dont know enough of modeling to even have a clue where to correct this, so i thought it could be a way to calculate it in the shader. the model itselfs has good surface its only the screwed normals.

i dont know what this model is.. but i suspect that the normals are correct.. it looks as if you are somehow coloring them in wierd ways..what it does it look like shaded in A6 with no shaders at all. If it looks correct then the normals must be ok. I dont see how normals can be messed up anyway.. unless you deform the vertices.. then you must use ent_fixnormals

big thanks!! that was it. ent_fixnormals does the job. however i am a little confused because i simply passed the normal to the pixelshader and uses mu(inPosition, matWorldViewProj); and that was the shader. no deforming

odd, but i suppose the normals can be messed up by animating..or perhaps there is just somthign wierd with the model..