X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=shaders%2Fviewchar.h;h=604cae2534ba85af4b973e54d2d565de9b5e614e;hb=a6708cef5099c83ff14816442de0954934f10276;hp=d7181ff4e85e213cb79ae5cce1ce1908f4c2e123;hpb=3d8eaabcfd3b87fb52127eaa1241673e8d197bea;p=carveJwlIkooP6JGAAIwe30JlM.git

diff --git a/shaders/viewchar.h b/shaders/viewchar.h
index d7181ff..604cae2 100644
--- a/shaders/viewchar.h
+++ b/shaders/viewchar.h
@@ -16,8 +16,30 @@ static struct vg_shader _shader_viewchar = {
 "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"
+"\n"
+"// TODO: Send a previous transform matrix stack\n"
+"//\n"
 "uniform mat4x3 uTransforms[32];\n"
 "\n"
 "out vec4 aColour;\n"
@@ -45,13 +67,15 @@ static struct vg_shader _shader_viewchar = {
 "   aNorm = world_normal;\n"
 "   aCo = a_co;\n"
 "   aWorldCo = world_pos;\n"
+"\n"
+"   // TODO:\n"
+"   aMotionVec0 = vec3(1.0);\n"
+"   aMotionVec1 = vec3(1.0);\n"
 "}\n"
 ""},
    .fs = 
 {
 .static_src = 
-"out vec4 FragColor;\n"
-"\n"
 "uniform sampler2D uTexMain;\n"
 "uniform vec3 uCamera;\n"
 "\n"
@@ -62,6 +86,8 @@ static struct vg_shader _shader_viewchar = {
 "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"
@@ -165,10 +191,32 @@ static struct vg_shader _shader_viewchar = {
 "   return mix( vfrag, vec3(0.55,0.76,1.0), min( 1.0, dist ) );\n"
 "}\n"
 "\n"
-"#line     13        0 \n"
+"#line     11        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     12        0 \n"
 "\n"
 "void main()\n"
 "{\n"
+"   compute_motion_vectors();\n"
+"\n"
 "   vec3 vfrag = texture( uTexMain, aUv ).rgb;\n"
 "\n"
 "   // Lighting\n"
@@ -183,8 +231,8 @@ static struct vg_shader _shader_viewchar = {
 "   vfrag = do_light_shadowing( vfrag );\n"
 "   vfrag = apply_fog( vfrag, fdist );\n"
 "\n"
-"   float opacity = clamp( fdist, 0.1, 1.0 );\n"
-"   FragColor = vec4(vfrag,opacity);\n"
+"   float opacity = clamp( fdist*fdist, 0.1, 1.0 );\n"
+"   oColour = vec4(vfrag,opacity);\n"
 "}\n"
 ""},
 };