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Normal maps generation on the fly.

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Parallax mapping with slope information.
Overriding normal maps.
This commit is contained in:
RealBadAngel 2014-03-21 01:32:00 +01:00
parent f3d83a4516
commit 0dc1aec509
16 changed files with 735 additions and 434 deletions
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40
client/shaders/alpha_shader/opengl_vertex.glsl
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@ -1,27 +1,33 @@
uniform mat4 mWorldViewProj;
uniform mat4 mInvWorld;
uniform mat4 mTransWorld;
uniform mat4 mWorld;
uniform float dayNightRatio;
uniform vec3 eyePosition;
varying vec3 vPosition;
varying vec3 eyeVec;
varying vec3 worldPosition;
varying vec3 eyeVec;
varying vec3 lightVec;
#ifdef ENABLE_PARALLAX_OCCLUSION
varying vec3 tsEyeVec;
#endif
varying vec3 tsLightVec;
const float BS = 10.0;
void main(void)
{
gl_TexCoord[0] = gl_MultiTexCoord0;
gl_Position = mWorldViewProj * gl_Vertex;
vPosition = (mWorldViewProj * gl_Vertex).xyz;
eyeVec = (gl_ModelViewMatrix * gl_Vertex).xyz;
vPosition = gl_Position.xyz;
worldPosition = (mWorld * gl_Vertex).xyz;
vec3 sunPosition = vec3 (0.0, eyePosition.y * BS + 900.0, 0.0);
#ifdef ENABLE_PARALLAX_OCCLUSION
vec3 normal,tangent,binormal;
vec3 normal, tangent, binormal;
normal = normalize(gl_NormalMatrix * gl_Normal);
if (gl_Normal.x > 0.5) {
// 1.0, 0.0, 0.0
tangent = normalize(gl_NormalMatrix * vec3( 0.0, 0.0, -1.0));
@ -47,25 +53,20 @@ void main(void)
tangent = normalize(gl_NormalMatrix * vec3(-1.0, 0.0, 0.0));
binormal = normalize(gl_NormalMatrix * vec3( 0.0, -1.0, 0.0));
}
mat3 tbnMatrix = mat3( tangent.x, binormal.x, normal.x,
tangent.y, binormal.y, normal.y,
tangent.z, binormal.z, normal.z);
tsEyeVec = normalize(eyeVec * tbnMatrix);
#endif
lightVec = sunPosition - worldPosition;
tsLightVec = lightVec * tbnMatrix;
eyeVec = (gl_ModelViewMatrix * gl_Vertex).xyz;
tsEyeVec = eyeVec * tbnMatrix;
vec4 color;
//color = vec4(1.0, 1.0, 1.0, 1.0);
float day = gl_Color.r;
float night = gl_Color.g;
float light_source = gl_Color.b;
/*color.r = mix(night, day, dayNightRatio);
color.g = color.r;
color.b = color.r;*/
float rg = mix(night, day, dayNightRatio);
rg += light_source * 2.5; // Make light sources brighter
float b = rg;
@ -90,13 +91,8 @@ void main(void)
color = color * color; // SRGB -> Linear
if(gl_Normal.y <= 0.5)
color *= 0.6;
//color *= 0.7;
color = sqrt(color); // Linear -> SRGB
color.a = gl_Color.a;
gl_FrontColor = gl_BackColor = color;
gl_TexCoord[0] = gl_MultiTexCoord0;
}