As you can see my shader makes some kind of marks of bump mapping.
Do u have any advice what kind of my mistake can it be?
here`s my pre (pixel)shader:
varying vec3 normal;varying vec3 tangentS;varying vec3 tangentT;varying vec3 position;varying vec2 texCoord;varying float depth;uniform sampler2D baseTex;uniform sampler2D normalTex;void main() { vec3 bumpNormal = texture2D( normalTex, texCoord).xyz * 2.0 - 1.0;//bump map load vec4 base = texture2D( baseTex, texCoord); bumpNormal = bumpNormal.x * tangentS + bumpNormal.y * tangentT + bumpNormal.z * normal; bumpNormal = faceforward( bumpNormal, normalize(position), bumpNormal); normalize(bumpNormal); bumpNormal= bumpNormal* 0.5 + 0.5; gl_FragData[0] = vec4( bumpNormal.xy,depth*(bumpNormal.z<0?-1:1),base.a);//here i keep xy normals and depth with sign of normals.z gl_FragData[1] = vec4( base.rgb,1.0);//material }And my dirLight (pixel) shader:
#version 120#extension GL_ARB_draw_buffers : require#extension GL_EXT_gpu_shader4 : requireuniform sampler2D normalDepthTex;uniform sampler2D materialTex;uniform vec3 lightDir;//=vec3( 0.57735);uniform vec3 lightColor;//=vec3(0,1.0,0);void main() { vec4 normal = texture2D( normalDepthTex, gl_TexCoord[0].xy); vec4 mat = texture2D( materialTex, gl_TexCoord[0].xy); normal.z=sqrt(1-normal.x*normal.x-normal.y*normal.y)*(normal.z<0?-1:1);//get real normal.z value from xy, because in normal.z i have coded depth, i`m only getting sign of z value(which is depth) vec3 bumpNormal = normal.xyz* 2.0 - 1.0;; float d = dot( lightDir, bumpNormal); d = max( 0.0, d) + 0.2; d = min( mat.w, d); gl_FragColor = vec4( (d*mat.rgb )*lightColor,1.0);//lightColor is green as u can see at the screen}Thanks for any useful advices(how should i resolve this problem).
