X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=shaders%2Fplaneinf.h;fp=shaders%2Fplaneinf.h;h=4bd7e86eb06b1824dff68abc9e1fc48f4bb5d3ef;hb=c5b57b50f0a67361fa4c49feb05750d1cd0ae2ba;hp=e61776898ba2336214378d90d1de6ca594f2ab4d;hpb=03aada77bbf0d268216a4ace0281ccb97ea9a409;p=carveJwlIkooP6JGAAIwe30JlM.git

diff --git a/shaders/planeinf.h b/shaders/planeinf.h
index e617768..4bd7e86 100644
--- a/shaders/planeinf.h
+++ b/shaders/planeinf.h
@@ -7,6 +7,7 @@ static struct vg_shader _shader_planeinf = {
    .link = shader_planeinf_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"
@@ -16,11 +17,29 @@ static struct vg_shader _shader_planeinf = {
 "layout (location=5) in ivec4 a_groups;\n"
 "\n"
 "#line      2        0 \n"
+"#line       1        2 \n"
+"const float k_motion_lerp_amount = 0.01;\n"
+"\n"
+"#line      2        0 \n"
+"\n"
+"out vec3 aMotionVec0;\n"
+"out vec3 aMotionVec1;\n"
+"\n"
+"void vs_motion_out( vec4 vproj0, vec4 vproj1 )\n"
+"{\n"
+"   // This magically solves some artifacting errors!\n"
+"   //\n"
+"   vproj1 = vproj0*(1.0-k_motion_lerp_amount) + vproj1*k_motion_lerp_amount;\n"
+"\n"
+"   aMotionVec0 = vec3( vproj0.xy, vproj0.w );\n"
+"   aMotionVec1 = vec3( vproj1.xy, vproj1.w );\n"
+"}\n"
+"\n"
+"#line      3        0 \n"
 "\n"
 "uniform mat4x3 uMdl;\n"
 "uniform mat4 uPv;\n"
-"\n"
-"uniform mat4x3 uMotion;\n"
+"uniform mat4 uPvmPrev;\n"
 "\n"
 "out vec4 aColour;\n"
 "out vec2 aUv;\n"
@@ -28,19 +47,13 @@ static struct vg_shader _shader_planeinf = {
 "out vec3 aCo;\n"
 "out vec3 aWorldCo;\n"
 "\n"
-"out vec3 aMotionVec0;\n"
-"out vec3 aMotionVec1;\n"
-"\n"
 "void main()\n"
 "{\n"
-"   vec3 world_pos0 = uMdl    * vec4(a_co,1.0);\n"
-"   vec3 world_pos1 = uMotion * vec4(world_pos0,1.0);\n"
-"   \n"
-"   vec4 vproj0 = uPv * vec4( world_pos0, 1.0 );\n"
-"   vec4 vproj1 = uPv * vec4( world_pos1, 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"
-"   aMotionVec0 = vec3( vproj0.xy, vproj0.w );\n"
-"   aMotionVec1 = vec3( vproj1.xy, vproj1.w );\n"
+"   vs_motion_out( vproj0, vproj1 );\n"
 "\n"
 "   gl_Position = vproj0;\n"
 "   aWorldCo = world_pos0;\n"
@@ -52,6 +65,7 @@ static struct vg_shader _shader_planeinf = {
 ""},
    .fs = 
 {
+.orig_file = "../../shaders/planeinf.fs",
 .static_src = 
 "\n"
 "#line      2        0 \n"
@@ -85,23 +99,23 @@ static struct vg_shader _shader_planeinf = {
 
 static GLuint _uniform_planeinf_uMdl;
 static GLuint _uniform_planeinf_uPv;
-static GLuint _uniform_planeinf_uMotion;
+static GLuint _uniform_planeinf_uPvmPrev;
 static GLuint _uniform_planeinf_uCamera;
 static GLuint _uniform_planeinf_uPlane;
 static void shader_planeinf_uMdl(m4x3f m){
-   glUniformMatrix4x3fv(_uniform_planeinf_uMdl,1,GL_FALSE,(float*)m);
+   glUniformMatrix4x3fv( _uniform_planeinf_uMdl, 1, GL_FALSE, (float *)m );
 }
 static void shader_planeinf_uPv(m4x4f m){
-   glUniformMatrix4fv(_uniform_planeinf_uPv,1,GL_FALSE,(float*)m);
+   glUniformMatrix4fv( _uniform_planeinf_uPv, 1, GL_FALSE, (float *)m );
 }
-static void shader_planeinf_uMotion(m4x3f m){
-   glUniformMatrix4x3fv(_uniform_planeinf_uMotion,1,GL_FALSE,(float*)m);
+static void shader_planeinf_uPvmPrev(m4x4f m){
+   glUniformMatrix4fv( _uniform_planeinf_uPvmPrev, 1, GL_FALSE, (float *)m );
 }
 static void shader_planeinf_uCamera(v3f v){
-   glUniform3fv(_uniform_planeinf_uCamera,1,v);
+   glUniform3fv( _uniform_planeinf_uCamera, 1, v );
 }
 static void shader_planeinf_uPlane(v4f v){
-   glUniform4fv(_uniform_planeinf_uPlane,1,v);
+   glUniform4fv( _uniform_planeinf_uPlane, 1, v );
 }
 static void shader_planeinf_register(void){
    vg_shader_register( &_shader_planeinf );
@@ -110,7 +124,7 @@ static void shader_planeinf_use(void){ glUseProgram(_shader_planeinf.id); }
 static void shader_planeinf_link(void){
    _uniform_planeinf_uMdl = glGetUniformLocation( _shader_planeinf.id, "uMdl" );
    _uniform_planeinf_uPv = glGetUniformLocation( _shader_planeinf.id, "uPv" );
-   _uniform_planeinf_uMotion = glGetUniformLocation( _shader_planeinf.id, "uMotion" );
+   _uniform_planeinf_uPvmPrev = glGetUniformLocation( _shader_planeinf.id, "uPvmPrev" );
    _uniform_planeinf_uCamera = glGetUniformLocation( _shader_planeinf.id, "uCamera" );
    _uniform_planeinf_uPlane = glGetUniformLocation( _shader_planeinf.id, "uPlane" );
 }