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~ | Camera system working

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TheRedShip
2024-12-22 01:10:31 +01:00
parent df44327436
commit 4d1d47a46a
5 changed files with 26 additions and 32 deletions
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11
shaders/frag.frag
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@ -4,6 +4,9 @@ out vec4 FragColor;
uniform vec2 u_resolution;
uniform vec3 u_cameraPosition;
uniform mat4 u_viewMatrix;
uniform mat4 u_projectionMatrix;
uniform vec3 u_cameraDir;
vec3 sphereCenter = vec3(0.0, 0.0, -5.0);
float sphereRadius = 1.0;
@ -57,9 +60,13 @@ void main()
uv = uv * 2.0 - 1.0;
uv.x *= u_resolution.x / u_resolution.y;
vec3 rayDirection = normalize(vec3(uv, -1.0));
rayDirection = (u_viewMatrix * vec4(rayDirection, 0.0)).xyz;
float fov = 90.0;
float focal_length = 1.0 / tan(radians(fov) / 2.0);
vec3 viewSpaceRay = normalize(vec3(uv.x, uv.y, -focal_length));
vec3 rayDirection = (inverse(u_viewMatrix) * vec4(viewSpaceRay, 0.0)).xyz;
rayDirection = normalize(rayDirection);
Ray ray = Ray(u_cameraPosition, rayDirection);
float t;