plish

[carveJwlIkooP6JGAAIwe30JlM.git] / shaders / planeinf.h

diff --git a/shaders/planeinf.h b/shaders/planeinf.h
index a0272a8d9c837c7121b18c0c2188ff554146e9ce..4bd7e86eb06b1824dff68abc9e1fc48f4bb5d3ef 100644 (file)
--- a/shaders/planeinf.h
+++ b/shaders/planeinf.h
@@ -17,9 +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 mat4 uPv;\n"
 "uniform mat4x3 uMdl;\n"
+"uniform mat4 uPv;\n"
+"uniform mat4 uPvmPrev;\n"
 "\n"
 "out vec4 aColour;\n"
 "out vec2 aUv;\n"
@@ -29,13 +49,18 @@ static struct vg_shader _shader_planeinf = {
 "\n"
 "void main()\n"
 "{\n"
-"   vec3 world_pos = uMdl * vec4(a_co,1.0);\n"
-"   gl_Position = uPv * vec4( world_pos, 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"
 "   aCo = a_co;\n"
-"   aWorldCo = world_pos;\n"
 "}\n"
 ""},
    .fs = 
@@ -72,15 +97,19 @@ static struct vg_shader _shader_planeinf = {
 ""},
 };
 
-static GLuint _uniform_planeinf_uPv;
 static GLuint _uniform_planeinf_uMdl;
+static GLuint _uniform_planeinf_uPv;
+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 );
+}
 static void shader_planeinf_uPv(m4x4f m){
    glUniformMatrix4fv( _uniform_planeinf_uPv, 1, GL_FALSE, (float *)m );
 }
-static void shader_planeinf_uMdl(m4x3f m){
-   glUniformMatrix4x3fv( _uniform_planeinf_uMdl, 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 );
@@ -93,8 +122,9 @@ static void shader_planeinf_register(void){
 }
 static void shader_planeinf_use(void){ glUseProgram(_shader_planeinf.id); }
 static void shader_planeinf_link(void){
-   _uniform_planeinf_uPv = glGetUniformLocation( _shader_planeinf.id, "uPv" );
    _uniform_planeinf_uMdl = glGetUniformLocation( _shader_planeinf.id, "uMdl" );
+   _uniform_planeinf_uPv = glGetUniformLocation( _shader_planeinf.id, "uPv" );
+   _uniform_planeinf_uPvmPrev = glGetUniformLocation( _shader_planeinf.id, "uPvmPrev" );
    _uniform_planeinf_uCamera = glGetUniformLocation( _shader_planeinf.id, "uCamera" );
    _uniform_planeinf_uPlane = glGetUniformLocation( _shader_planeinf.id, "uPlane" );
 }