framebuffer formalitites

[carveJwlIkooP6JGAAIwe30JlM.git] / shaders / vblend.h

diff --git a/shaders/vblend.h b/shaders/vblend.h
index 45782ad90fe506b6bedf2eff6c406cd0566974d8..2a5dacf8bcb16d9db7ede932a3e82b07143ca0b8 100644 (file)
--- a/shaders/vblend.h
+++ b/shaders/vblend.h
@@ -7,26 +7,47 @@ static struct vg_shader _shader_vblend = {
    .link = shader_vblend_link,
    .vs = 
 {
-.orig_file = "../shaders/standard.vs",
 .static_src = 
 "layout (location=0) in vec3 a_co;\n"
 "layout (location=1) in vec3 a_norm;\n"
-"layout (location=2) in vec4 a_colour;\n"
-"layout (location=3) in vec2 a_uv;\n"
+"layout (location=2) in vec2 a_uv;\n"
+"layout (location=3) in vec4 a_colour;\n"
+"layout (location=4) in vec4 a_weights;\n"
+"layout (location=5) in ivec4 a_groups;\n"
 "\n"
 "#line      2        0 \n"
+"#line       1        2 \n"
+"out vec3 aMotionVec0;\n"
+"out vec3 aMotionVec1;\n"
+"\n"
+"void vs_motion_out( vec4 vproj0, vec4 vproj1 )\n"
+"{\n"
+"   aMotionVec0 = vec3( vproj0.xy, vproj0.w );\n"
+"   aMotionVec1 = vec3( vproj1.xy, vproj1.w );\n"
+"}\n"
+"\n"
+"#line      3        0 \n"
 "\n"
-"uniform mat4 uPv;\n"
 "uniform mat4x3 uMdl;\n"
+"uniform mat4 uPv;\n"
+"uniform mat4 uPvmPrev;\n"
 "\n"
 "out vec4 aColour;\n"
 "out vec2 aUv;\n"
 "out vec3 aNorm;\n"
 "out vec3 aCo;\n"
+"out vec3 aWorldCo;\n"
 "\n"
 "void main()\n"
 "{\n"
-"   gl_Position = uPv * vec4( uMdl * vec4(a_co,1.0), 1.0 );\n"
+"   vec3 world_pos0 = uMdl     * vec4( a_co, 1.0 );\n"
+"   vec4 vproj0     = uPv      * vec4( world_pos0, 1.0 );\n"
+"   vec4 vproj1     = uPvmPrev * vec4( a_co, 1.0 );\n"
+"\n"
+"   vs_motion_out( vproj0, vproj1 );\n"
+"\n"
+"   gl_Position = vproj0;\n"
+"   aWorldCo = world_pos0;\n"
 "   aColour = a_colour;\n"
 "   aUv = a_uv;\n"
 "   aNorm = mat3(uMdl) * a_norm;\n"
@@ -35,21 +56,20 @@ static struct vg_shader _shader_vblend = {
 ""},
    .fs = 
 {
-.orig_file = "../shaders/vblend.fs",
 .static_src = 
-"out vec4 FragColor;\n"
-"\n"
 "uniform sampler2D uTexGarbage;\n"
 "uniform sampler2D uTexGradients;\n"
 "uniform vec3 uCamera;\n"
-"uniform vec4 uPlane;\n"
 "\n"
 "in vec4 aColour;\n"
 "in vec2 aUv;\n"
 "in vec3 aNorm;\n"
 "in vec3 aCo;\n"
+"in vec3 aWorldCo;\n"
 "\n"
 "#line       1        1 \n"
+"layout (location = 0) out vec4 oColour;\n"
+"\n"
 "layout (std140) uniform ub_world_lighting\n"
 "{\n"
 "   vec4 g_light_colours[3];\n"
@@ -61,6 +81,7 @@ static struct vg_shader _shader_vblend = {
 "   float g_water_fog;\n"
 "   int g_light_count;\n"
 "   int g_light_preview;\n"
+"   int g_shadow_samples;\n"
 "};\n"
 "\n"
 "uniform sampler2D g_world_depth;\n"
@@ -102,7 +123,7 @@ static struct vg_shader _shader_vblend = {
 "\n"
 "float shadow_sample( vec3 vdir )\n"
 "{\n"
-"   vec3 sample_pos = aCo + vdir;\n"
+"   vec3 sample_pos = aWorldCo + vdir;\n"
 "   float height_sample = world_depth_sample( sample_pos );\n"
 "\n"
 "   float fdelta = height_sample - sample_pos.y;\n"
@@ -125,6 +146,11 @@ static struct vg_shader _shader_vblend = {
 "\n"
 "vec3 do_light_shadowing( vec3 vfrag )\n"
 "{\n"
+"   if( g_shadow_samples == 0 )\n"
+"   {\n"
+"      return vfrag;\n"
+"   }\n"
+"\n"
 "   float fspread = g_light_colours[0].w;\n"
 "   vec3  vdir = g_light_directions[0].xyz;\n"
 "   float flength = g_light_directions[0].w;\n"
@@ -147,14 +173,31 @@ static struct vg_shader _shader_vblend = {
 "   return mix( vfrag, vec3(0.55,0.76,1.0), min( 1.0, dist ) );\n"
 "}\n"
 "\n"
-"#line     14        0 \n"
+"#line     12        0 \n"
+"#line       1        2 \n"
+"layout (location = 1) out vec2 oMotionVec;\n"
+"\n"
+"in vec3 aMotionVec0;\n"
+"in vec3 aMotionVec1;\n"
+"\n"
+"void compute_motion_vectors()\n"
+"{\n"
+"   // Write motion vectors\n"
+"   vec2 vmotion0 = aMotionVec0.xy / aMotionVec0.z;\n"
+"   vec2 vmotion1 = aMotionVec1.xy / aMotionVec1.z;\n"
+"   oMotionVec = vmotion1-vmotion0;\n"
+"}\n"
+"\n"
+"#line     13        0 \n"
 "\n"
 "void main()\n"
 "{\n"
+"   compute_motion_vectors();\n"
+"\n"
 "   vec3 vfrag = vec3(0.5,0.5,0.5);\n"
 "\n"
 "   // ws modulation\n"
-"   vec4 wgarbage = texture( uTexGarbage, aCo.xz * 0.160 );\n"
+"   vec4 wgarbage = vec4(0.5,0.5,0.5,1.0);//texture( uTexGarbage, aCo.xz * 0.160 );\n"
 "   \n"
 "   // Creating normal patches\n"
 "   vec3 modnorm = (wgarbage.rgb-0.4) * 1.4;\n"
@@ -180,7 +223,7 @@ static struct vg_shader _shader_vblend = {
 "   }\n"
 "\n"
 "   // Lighting\n"
-"   vec3 halfview = uCamera - aCo;\n"
+"   vec3 halfview = uCamera - aWorldCo;\n"
 "   float fdist = length( halfview );\n"
 "   halfview /= fdist;\n"
 "\n"
@@ -189,50 +232,50 @@ static struct vg_shader _shader_vblend = {
 "   vfrag = do_light_shadowing( vfrag );\n"
 "   vfrag = apply_fog( vfrag, fdist );\n"
 "\n"
-"   FragColor = vec4(vfrag, 1.0 );\n"
+"   oColour = vec4(vfrag, 1.0 );\n"
 "}\n"
 ""},
 };
 
-static GLuint _uniform_vblend_uPv;
 static GLuint _uniform_vblend_uMdl;
+static GLuint _uniform_vblend_uPv;
+static GLuint _uniform_vblend_uPvmPrev;
 static GLuint _uniform_vblend_uTexGarbage;
 static GLuint _uniform_vblend_uTexGradients;
 static GLuint _uniform_vblend_uCamera;
-static GLuint _uniform_vblend_uPlane;
 static GLuint _uniform_vblend_g_world_depth;
+static void shader_vblend_uMdl(m4x3f m){
+   glUniformMatrix4x3fv(_uniform_vblend_uMdl,1,GL_FALSE,(float*)m);
+}
 static void shader_vblend_uPv(m4x4f m){
-   glUniformMatrix4fv( _uniform_vblend_uPv, 1, GL_FALSE, (float *)m );
+   glUniformMatrix4fv(_uniform_vblend_uPv,1,GL_FALSE,(float*)m);
 }
-static void shader_vblend_uMdl(m4x3f m){
-   glUniformMatrix4x3fv( _uniform_vblend_uMdl, 1, GL_FALSE, (float *)m );
+static void shader_vblend_uPvmPrev(m4x4f m){
+   glUniformMatrix4fv(_uniform_vblend_uPvmPrev,1,GL_FALSE,(float*)m);
 }
 static void shader_vblend_uTexGarbage(int i){
-   glUniform1i( _uniform_vblend_uTexGarbage, i );
+   glUniform1i(_uniform_vblend_uTexGarbage,i);
 }
 static void shader_vblend_uTexGradients(int i){
-   glUniform1i( _uniform_vblend_uTexGradients, i );
+   glUniform1i(_uniform_vblend_uTexGradients,i);
 }
 static void shader_vblend_uCamera(v3f v){
-   glUniform3fv( _uniform_vblend_uCamera, 1, v );
-}
-static void shader_vblend_uPlane(v4f v){
-   glUniform4fv( _uniform_vblend_uPlane, 1, v );
+   glUniform3fv(_uniform_vblend_uCamera,1,v);
 }
 static void shader_vblend_g_world_depth(int i){
-   glUniform1i( _uniform_vblend_g_world_depth, i );
+   glUniform1i(_uniform_vblend_g_world_depth,i);
 }
 static void shader_vblend_register(void){
    vg_shader_register( &_shader_vblend );
 }
 static void shader_vblend_use(void){ glUseProgram(_shader_vblend.id); }
 static void shader_vblend_link(void){
-   _uniform_vblend_uPv = glGetUniformLocation( _shader_vblend.id, "uPv" );
    _uniform_vblend_uMdl = glGetUniformLocation( _shader_vblend.id, "uMdl" );
+   _uniform_vblend_uPv = glGetUniformLocation( _shader_vblend.id, "uPv" );
+   _uniform_vblend_uPvmPrev = glGetUniformLocation( _shader_vblend.id, "uPvmPrev" );
    _uniform_vblend_uTexGarbage = glGetUniformLocation( _shader_vblend.id, "uTexGarbage" );
    _uniform_vblend_uTexGradients = glGetUniformLocation( _shader_vblend.id, "uTexGradients" );
    _uniform_vblend_uCamera = glGetUniformLocation( _shader_vblend.id, "uCamera" );
-   _uniform_vblend_uPlane = glGetUniformLocation( _shader_vblend.id, "uPlane" );
    _uniform_vblend_g_world_depth = glGetUniformLocation( _shader_vblend.id, "g_world_depth" );
 }
 #endif /* SHADER_vblend_H */