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Optimize shaders code. Add settings at compile time.

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This commit is contained in:
RealBadAngel 2013-12-09 13:25:43 +01:00
parent 50b0e9f7a4
commit dae03382bf
13 changed files with 181 additions and 195 deletions
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37
client/shaders/alpha_shader/opengl_fragment.glsl
View file

@ -1,45 +1,44 @@
#version 120
uniform sampler2D baseTexture;
uniform sampler2D normalTexture;
uniform sampler2D useNormalmap;
uniform float enableBumpmapping;
uniform float enableParallaxOcclusion;
uniform float parallaxOcclusionScale;
uniform float parallaxOcclusionBias;
uniform vec4 skyBgColor;
uniform float fogDistance;
uniform vec3 eyePosition;
varying vec3 vPosition;
varying vec3 tsEyeVec;
varying vec3 eyeVec;
#ifdef ENABLE_PARALLAX_OCCLUSION
varying vec3 tsEyeVec;
#endif
const float e = 2.718281828459;
void main (void)
{
vec3 color;
vec2 uv = gl_TexCoord[0].st;
#ifdef NORMALS
#ifdef USE_NORMALMAPS
float use_normalmap = texture2D(useNormalmap,vec2(1.0,1.0)).r;
#endif
#ifdef ENABLE_PARALLAX_OCCLUSION
float height;
vec2 tsEye = vec2(tsEyeVec.x,-tsEyeVec.y);
float use_normalmap = texture2D(useNormalmap,vec2(1.0,1.0)).r;
float enable_bumpmapping = enableBumpmapping;
if ((enableParallaxOcclusion == 1.0) && (use_normalmap > 0.0)) {
if (use_normalmap > 0.0) {
float map_height = texture2D(normalTexture, uv).a;
if (map_height < 1.0){
float height = parallaxOcclusionScale * map_height - parallaxOcclusionBias;
float height = PARALLAX_OCCLUSION_SCALE * map_height - PARALLAX_OCCLUSION_BIAS;
uv = uv + height * tsEye;
}
}
#endif
if ((enable_bumpmapping == 1.0) && (use_normalmap > 0.0)) {
#ifdef ENABLE_BUMPMAPPING
if (use_normalmap > 0.0) {
vec3 base = texture2D(baseTexture, uv).rgb;
vec3 vVec = normalize(eyeVec);
vec3 bump = normalize(texture2D(normalTexture, uv).xyz * 2.0 - 1.0);
@ -68,5 +67,5 @@ void main (void)
float d = max(0.0, min(vPosition.z / fogDistance * 1.5 - 0.6, 1.0));
col = mix(col, skyBgColor, d);
}
gl_FragColor = vec4(col.r, col.g, col.b, alpha);
gl_FragColor = vec4(col.r, col.g, col.b, alpha);
}

21
client/shaders/alpha_shader/opengl_vertex.glsl
View file

@ -1,5 +1,3 @@
#version 120
uniform mat4 mWorldViewProj;
uniform mat4 mInvWorld;
uniform mat4 mTransWorld;
@ -9,14 +7,19 @@ uniform vec3 eyePosition;
varying vec3 vPosition;
varying vec3 eyeVec;
#ifdef ENABLE_PARALLAX_OCCLUSION
varying vec3 tsEyeVec;
#endif
void main(void)
{
gl_Position = mWorldViewProj * gl_Vertex;
vPosition = (mWorldViewProj * gl_Vertex).xyz;
eyeVec = (gl_ModelViewMatrix * gl_Vertex).xyz;
vec3 normal,tangent,binormal;
#ifdef ENABLE_PARALLAX_OCCLUSION
vec3 normal,tangent,binormal;
normal = normalize(gl_NormalMatrix * gl_Normal);
if (gl_Normal.x > 0.5) {
@ -44,14 +47,14 @@ 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);
eyeVec = (gl_ModelViewMatrix * gl_Vertex).xyz;
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
vec4 color;
//color = vec4(1.0, 1.0, 1.0, 1.0);