diff options
Diffstat (limited to 'client/shaders/liquids_shader/opengl_vertex.glsl')
| -rw-r--r-- | client/shaders/liquids_shader/opengl_vertex.glsl | 67 |
1 files changed, 57 insertions, 10 deletions
diff --git a/client/shaders/liquids_shader/opengl_vertex.glsl b/client/shaders/liquids_shader/opengl_vertex.glsl index e8f185825..9d64ce4e3 100644 --- a/client/shaders/liquids_shader/opengl_vertex.glsl +++ b/client/shaders/liquids_shader/opengl_vertex.glsl @@ -1,40 +1,84 @@ uniform mat4 mWorldViewProj;
uniform mat4 mInvWorld;
uniform mat4 mTransWorld;
+uniform mat4 mWorld;
+
uniform float dayNightRatio;
uniform float animationTimer;
uniform vec3 eyePosition;
varying vec3 vPosition;
+varying vec3 worldPosition;
+
varying vec3 eyeVec;
+varying vec3 lightVec;
+
+varying vec3 tsEyeVec;
+varying vec3 tsLightVec;
+
+const float BS = 10.0;
void main(void)
{
+ gl_TexCoord[0] = gl_MultiTexCoord0;
+
#ifdef ENABLE_WAVING_WATER
vec4 pos2 = gl_Vertex;
pos2.y -= 2.0;
pos2.y -= sin (pos2.z/WATER_WAVE_LENGTH + animationTimer * WATER_WAVE_SPEED * WATER_WAVE_LENGTH) * WATER_WAVE_HEIGHT
+ sin ((pos2.z/WATER_WAVE_LENGTH + animationTimer * WATER_WAVE_SPEED * WATER_WAVE_LENGTH) / 7.0) * WATER_WAVE_HEIGHT;
gl_Position = mWorldViewProj * pos2;
+ vPosition = gl_Position.xyz;
#else
gl_Position = mWorldViewProj * gl_Vertex;
+ vPosition = gl_Position.xyz;
#endif
+ worldPosition = (mWorld * gl_Vertex).xyz;
+ vec3 sunPosition = vec3 (0.0, eyePosition.y * BS + 900.0, 0.0);
+
+ 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));
+ binormal = normalize(gl_NormalMatrix * vec3( 0.0, -1.0, 0.0));
+ } else if (gl_Normal.x < -0.5) {
+ // -1.0, 0.0, 0.0
+ tangent = normalize(gl_NormalMatrix * vec3( 0.0, 0.0, 1.0));
+ binormal = normalize(gl_NormalMatrix * vec3( 0.0, -1.0, 0.0));
+ } else if (gl_Normal.y > 0.5) {
+ // 0.0, 1.0, 0.0
+ tangent = normalize(gl_NormalMatrix * vec3( 1.0, 0.0, 0.0));
+ binormal = normalize(gl_NormalMatrix * vec3( 0.0, 0.0, 1.0));
+ } else if (gl_Normal.y < -0.5) {
+ // 0.0, -1.0, 0.0
+ tangent = normalize(gl_NormalMatrix * vec3( 1.0, 0.0, 0.0));
+ binormal = normalize(gl_NormalMatrix * vec3( 0.0, 0.0, 1.0));
+ } else if (gl_Normal.z > 0.5) {
+ // 0.0, 0.0, 1.0
+ tangent = normalize(gl_NormalMatrix * vec3( 1.0, 0.0, 0.0));
+ binormal = normalize(gl_NormalMatrix * vec3( 0.0, -1.0, 0.0));
+ } else if (gl_Normal.z < -0.5) {
+ // 0.0, 0.0, -1.0
+ 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);
+
+ lightVec = sunPosition - worldPosition;
+ tsLightVec = lightVec * tbnMatrix;
eyeVec = (gl_ModelViewMatrix * gl_Vertex).xyz;
- vPosition = (mWorldViewProj * 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;
@@ -54,10 +98,13 @@ void main(void) color.r = clamp(rg,0.0,1.0);
color.g = clamp(rg,0.0,1.0);
color.b = clamp(b,0.0,1.0);
+
+ // Make sides and bottom darker than the top
+ color = color * color; // SRGB -> Linear
+ if(gl_Normal.y <= 0.5)
+ color *= 0.6;
+ color = sqrt(color); // Linear -> SRGB
color.a = gl_Color.a;
gl_FrontColor = gl_BackColor = color;
-
- gl_TexCoord[0] = gl_MultiTexCoord0;
-
}
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