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[vulkan] Normalize iqm normals

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Same mistake as for alias, I simply forgot to do it for iqm when I got
it working.
This commit is contained in:
Bill Currie 2022-05-07 13:00:02 +09:00
parent c59ab8882d
commit 18af340160
2 changed files with 8 additions and 4 deletions
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9
libs/video/renderer/vulkan/shader/iqm.frag
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@ -12,9 +12,9 @@ layout (push_constant) uniform PushConstants {
layout (location = 0) in vec2 texcoord;
layout (location = 1) in vec4 position;
layout (location = 2) in vec3 normal;
layout (location = 3) in vec3 tangent;
layout (location = 4) in vec3 bitangent;
layout (location = 2) in vec3 fnormal;
layout (location = 3) in vec3 ftangent;
layout (location = 4) in vec3 fbitangent;
layout (location = 5) in vec4 color;
layout (location = 0) out vec4 frag_color;
@ -29,6 +29,9 @@ main (void)
vec4 e;
//vec3 n;
int i;
vec3 normal = normalize (fnormal);
vec3 tangent = normalize (ftangent);
vec3 bitangent = normalize (fbitangent);
//mat3 tbn = mat3 (tangent, bitangent, normal);
c = texture (Skin, texcoord);// * color;

3
libs/video/renderer/vulkan/shader/iqm.vert
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@ -49,8 +49,9 @@ main (void)
mat3 adjTrans = mat3 (cross(m[1].xyz, m[2].xyz),
cross(m[2].xyz, m[0].xyz),
cross(m[0].xyz, m[1].xyz));
normal = mat3 (Model) * vnormal * adjTrans;
normal = normalize (mat3 (Model) * vnormal * adjTrans);
tangent = mat3 (Model) * vtangent.xyz * adjTrans;
tangent = normalize (tangent - dot (tangent, normal) * normal);
bitangent = cross (normal, tangent) * vtangent.w;
texcoord = vtexcoord;
color = vcolor;