X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=shaders%2Fvblend.h;fp=shaders%2Fvblend.h;h=3f5bfdc14ed136eb21c6856f253926a1af0e797f;hb=6d66c67945f84476d6ac75a0497007cc30bcf58c;hp=45782ad90fe506b6bedf2eff6c406cd0566974d8;hpb=d8b8c566831e15ef061a66409e1219f44a82097a;p=carveJwlIkooP6JGAAIwe30JlM.git

diff --git a/shaders/vblend.h b/shaders/vblend.h
index 45782ad..3f5bfdc 100644
--- a/shaders/vblend.h
+++ b/shaders/vblend.h
@@ -23,14 +23,17 @@ static struct vg_shader _shader_vblend = {
 "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_pos = uMdl * vec4(a_co,1.0);\n"
+"   gl_Position = uPv * vec4( world_pos, 1.0 );\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 = 
@@ -48,6 +51,7 @@ static struct vg_shader _shader_vblend = {
 "in vec2 aUv;\n"
 "in vec3 aNorm;\n"
 "in vec3 aCo;\n"
+"in vec3 aWorldCo;\n"
 "\n"
 "#line       1        1 \n"
 "layout (std140) uniform ub_world_lighting\n"
@@ -102,7 +106,7 @@ 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"
@@ -147,7 +151,7 @@ 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     15        0 \n"
 "\n"
 "void main()\n"
 "{\n"
@@ -180,7 +184,7 @@ 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"