X-Git-Url: https://eleni.mutantstargoat.com/git/?p=demo;a=blobdiff_plain;f=vk_shaders%2Fmorphing.v.glsl;fp=vk_shaders%2Fmorphing.v.glsl;h=a93a40fab540a1d74eed504dfdc494df21f2453d;hp=0000000000000000000000000000000000000000;hb=855c42d8e50fff743fd7b1be5e91cb0db18def77;hpb=ecb47604bb2b8ab3ac5a133e78ef6cb19a20d9cc

diff --git a/vk_shaders/morphing.v.glsl b/vk_shaders/morphing.v.glsl
new file mode 100644
index 0000000..a93a40f
--- /dev/null
+++ b/vk_shaders/morphing.v.glsl
@@ -0,0 +1,41 @@
+#version 450
+
+layout(std140, binding = 0) uniform matrix_state {
+	mat4 mview;
+	mat4 mmviewproj;
+	mat4 mmod;
+	float t;
+} m;
+
+const float half_height = 0.855;
+
+layout(location = 0) out vec3 pos;
+layout(location = 1) out vec2 tex_coord;
+layout(location = 2) out vec3 world_normal;
+
+/* attributes */
+layout(location = 1) in vec3 attr_pos;
+layout(location = 2) in vec3 attr_normal;
+layout(location = 3) in vec2 attr_tex;
+
+void main()
+{
+	vec3 sph_pos = normalize(vec3(attr_pos.x, attr_pos.y - half_height, attr_pos.z));
+
+	vec3 sph_normal = sph_pos;
+	sph_pos.y += half_height;
+
+	vec3 p = mix(attr_pos, sph_pos, m.t);
+	vec3 n = mix(attr_normal, sph_normal, m.t);
+
+	gl_Position = m.mmviewproj * vec4(p, 1.0);
+
+	pos = (m.mview * vec4(p, 1.0)).xyz;
+	// ldir = (mview * vec4(lpos, 1.0)).xyz;
+
+	// mat3 normal_matrix = mat3(mview);
+	// normal = normal_matrix * n;
+
+	tex_coord = attr_tex;
+	world_normal = (m.mmod * vec4(attr_normal, 1.0)).xyz;
+}