X-Git-Url: https://eleni.mutantstargoat.com/git/?p=demo;a=blobdiff_plain;f=shaders%2Fmorphing.v.glsl;fp=shaders%2Fmorphing.v.glsl;h=80b7e3910b19fa7f50b9d371ab483b6307199191;hp=0000000000000000000000000000000000000000;hb=0f6519c2606f2863d9c7ee8b9754b9f23df281ab;hpb=05d269a194496bcef85da78652b947f5bf1c9bcf diff --git a/shaders/morphing.v.glsl b/shaders/morphing.v.glsl new file mode 100644 index 0000000..80b7e39 --- /dev/null +++ b/shaders/morphing.v.glsl @@ -0,0 +1,44 @@ +#version 450 + +#define MATRIX_UNIFORMS 0 +#define MORPHING_UNIFORMS 3 + +layout(std140, binding = MATRIX_UNIFORMS) uniform vu { + mat4 mview; + uniform mat4 mmviewproj; + uniform mat4 mmod; +} m; + +layout(std140, binding = MORPHING_UNIFORMS) uniform mvu { + float t; +} time; + +/* attributes */ +layout(location = 1) in vec3 attr_pos; +layout(location = 2) in vec3 attr_normal; +layout(location = 3) in vec2 attr_tex; + +/* varyings */ +layout(location = 4) out vec3 pos; +layout(location = 5) out vec2 tex_coord; +layout(location = 6) out vec3 world_normal; + +const float half_height = 0.855; + +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, time.t); + vec3 n = mix(attr_normal, sph_normal, time.t); + + gl_Position = m.mmviewproj * vec4(p, 1.0); + + pos = (m.mview * vec4(p, 1.0)).xyz; + + tex_coord = attr_tex; + world_normal = (m.mmod * vec4(attr_normal, 1.0)).xyz; +}