"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"
+"uniform mat4 uPvmPrev;\n"
"\n"
"out vec4 aColour;\n"
"out vec2 aUv;\n"
"\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 =
{
.static_src =
-"out vec4 FragColor;\n"
-"\n"
"uniform sampler2D uTexDudv;\n"
"\n"
"uniform float uTime;\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"
" return mix( vfrag, vec3(0.55,0.76,1.0), min( 1.0, dist ) );\n"
"}\n"
"\n"
-"#line 19 0 \n"
+"#line 17 0 \n"
+"#line 1 2 \n"
+"const float k_motion_lerp_amount = 0.01;\n"
+"\n"
+"#line 2 0 \n"
+"\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"
+"\n"
+" oMotionVec = (vmotion1-vmotion0) * (1.0/k_motion_lerp_amount);\n"
+"}\n"
+"\n"
+"#line 18 0 \n"
"\n"
"vec4 water_surf( vec3 halfview, vec3 vnorm, float depthvalue )\n"
"{\n"
"\n"
"void main()\n"
"{\n"
+" compute_motion_vectors();\n"
+"\n"
" // Surface colour composite\n"
" float depthvalue = clamp( -world_depth_sample( aCo )*(1.0/25.0), 0.0, 1.0 );\n"
"\n"
" // Composite\n"
" vec4 vsurface = water_surf( halfview, surfnorm, depthvalue );\n"
" vsurface.a -= fdist;\n"
-" FragColor = mix( vsurface, vec4(1.0,1.0,1.0,0.5), fband );\n"
+" oColour = mix( vsurface, vec4(1.0,1.0,1.0,0.5), fband );\n"
"}\n"
""},
};
static GLuint _uniform_water_fast_uMdl;
static GLuint _uniform_water_fast_uPv;
+static GLuint _uniform_water_fast_uPvmPrev;
static GLuint _uniform_water_fast_uTexDudv;
static GLuint _uniform_water_fast_uTime;
static GLuint _uniform_water_fast_uCamera;
static void shader_water_fast_uPv(m4x4f m){
glUniformMatrix4fv(_uniform_water_fast_uPv,1,GL_FALSE,(float*)m);
}
+static void shader_water_fast_uPvmPrev(m4x4f m){
+ glUniformMatrix4fv(_uniform_water_fast_uPvmPrev,1,GL_FALSE,(float*)m);
+}
static void shader_water_fast_uTexDudv(int i){
glUniform1i(_uniform_water_fast_uTexDudv,i);
}
static void shader_water_fast_link(void){
_uniform_water_fast_uMdl = glGetUniformLocation( _shader_water_fast.id, "uMdl" );
_uniform_water_fast_uPv = glGetUniformLocation( _shader_water_fast.id, "uPv" );
+ _uniform_water_fast_uPvmPrev = glGetUniformLocation( _shader_water_fast.id, "uPvmPrev" );
_uniform_water_fast_uTexDudv = glGetUniformLocation( _shader_water_fast.id, "uTexDudv" );
_uniform_water_fast_uTime = glGetUniformLocation( _shader_water_fast.id, "uTime" );
_uniform_water_fast_uCamera = glGetUniformLocation( _shader_water_fast.id, "uCamera" );